{
  "_notice": {
    "type": "free_key_offer",
    "message": "Free and anonymous access is staying. If this endpoint is in your pipeline, a free key adds advance notice before any schema change or deprecation. POST /v1/keys {\"email\": \"you@firm.com\"} — nothing else required. Something broken or missing? hello@clearmarket.fyi reaches a human.",
    "docs": "https://clearmarket.fyi/for-data/",
    "policy": "This field is additive and its shape will not change."
  },
  "event_id": "CM-EVT-YF10Y857N2",
  "slug": "kxlowtchi-26aug04",
  "question": "Will the lowest temperature in Chicago on August 4, 2026 be below 60°F?",
  "category": "climate",
  "event_type": "BINARY",
  "ladder_distribution": null,
  "tags": [
    "climate",
    "chicago-weather",
    "temperature-minimum",
    "august-2026",
    "real-world-outcome",
    "weather-data-resolution"
  ],
  "catalyst_types": [],
  "catalyst_dates": [],
  "editorial_notes": "These six Kalshi markets collectively price the lowest recorded temperature at Chicago Midway on August 4, 2026. Each market covers a discrete two-degree temperature band, from below 58°F to above 65°F, forming a mutually exclusive and exhaustive distribution. The markets are structurally complementary: implied probabilities across all six bands should sum to one. Resolution is via Kalshi staff determination using the National Weather Service Climatological Report for Chicago Midway.",
  "venues_covered": [
    "kalshi"
  ],
  "primary_market_id": "CM-MKT-2JKQ31ZN34",
  "current_primary_mark": {
    "last_price": 0.99,
    "implied_probability": 0.99
  },
  "created_at": "2026-08-04T20:03:51.865287+00:00",
  "updated_at": "2026-08-04T20:03:51.865287+00:00",
  "markets": [
    {
      "market_id": "CM-MKT-JX7X52H5G0",
      "event_id": "CM-EVT-YF10Y857N2",
      "platform": "kalshi",
      "platform_market_id": "KXLOWTCHI-26AUG04-T58",
      "question": "Will the minimum temperature be <58° on Aug 4, 2026?",
      "description": "57° or below",
      "contract_type": "binary",
      "settlement_currency": "USD",
      "underlying_reference": "57° or below: National Weather Service Climatological Report for Chicago Midway on August 4, 2026 resolves whether the minimum temperature met the threshold, with Kalshi staff determination by August 5, 2026 at 7 p.m. UTC.",
      "close_at": "2026-08-05T06:00:00Z",
      "resolve_at": "2026-08-05T19:00:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "If the minimum temperature recorded at Chicago for Aug 4, 2026, is less than 58° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\nData for CLIMDW can be found by clicking the following URL: https://www.weather.gov/wrh/Climate?wfo=lot, navigating to the \"Observed Weather\" tab, and choosing the location \"Chicago - Midway, IL\" with Daily Climate Report selected. Please use the latest version of the data for the desired date, keeping in mind that different cities update their reports at different frequencies.\n\nNot all weather data is the same. While checking a source like AccuWeather or Google Weather may help guide your decision, the official and final value used to determine this market is the maximum/minimum temperature as reported by the corresponding NWS Climatological Report (Daily) linked in the rules above. Preliminary NWS reporting and measurement methods may be subject to underlying rounding and conversion nuances. Traders should exercise caution when interpreting preliminary NWS data.",
        "arbitration_model": "kalshi_staff",
        "proposer": "platform_staff",
        "source": "NWS Climatological Report Chicago Midway",
        "source_status": "platform_named",
        "source_citation": "https://forecast.weather.gov/product.php?site=LOT&product=CLI&issuedby=MDW",
        "sources": [
          {
            "name": "NWS Climatological Report Chicago Midway",
            "url": "https://forecast.weather.gov/product.php?site=LOT&product=CLI&issuedby=MDW",
            "provenance": "platform_api"
          },
          {
            "name": "National Weather Service's Climatological Report (Daily)",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "NWS Climatological Report",
            "url": null,
            "provenance": "clearmarket_editorial"
          }
        ],
        "source_of_record": "National Weather Service's Climatological Report (Daily)",
        "source_mechanism": "single_authority",
        "source_type": null,
        "source_quality": "authoritative",
        "source_commitment": "named",
        "source_commitment_subtype": "named",
        "source_hedge_text": null
      },
      "rcg": {
        "grade": "A",
        "score": 97,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 0.01,
      "implied_probability": 0.01,
      "volume_24h_usd": 1.57,
      "volume_total_usd": 4.83,
      "settlement_style": "terminal",
      "direction": "below",
      "threshold": 58,
      "question_id": null,
      "also_on": null,
      "tags": [
        "chicago",
        "chicago minimum temperature",
        "temperature",
        "weather"
      ],
      "eligibility_screens": null
    },
    {
      "market_id": "CM-MKT-1WF42V04B7",
      "event_id": "CM-EVT-YF10Y857N2",
      "platform": "kalshi",
      "platform_market_id": "KXLOWTCHI-26AUG04-B58.5",
      "question": "Will the minimum temperature be 58-59° on Aug 4, 2026?",
      "description": "58° to 59°",
      "contract_type": "binary",
      "settlement_currency": "USD",
      "underlying_reference": "58° to 59°: National Weather Service Climatological Report for Chicago Midway on August 4, 2026 resolves whether the minimum temperature met the threshold, with Kalshi staff determination by August 5, 2026 at 7 p.m. UTC.",
      "close_at": "2026-08-05T06:00:00Z",
      "resolve_at": "2026-08-05T19:00:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "If the minimum temperature recorded at Chicago for Aug 4, 2026, is between 58-59° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\nData for CLIMDW can be found by clicking the following URL: https://www.weather.gov/wrh/Climate?wfo=lot, navigating to the \"Observed Weather\" tab, and choosing the location \"Chicago - Midway, IL\" with Daily Climate Report selected. Please use the latest version of the data for the desired date, keeping in mind that different cities update their reports at different frequencies.\n\nNot all weather data is the same. While checking a source like AccuWeather or Google Weather may help guide your decision, the official and final value used to determine this market is the maximum/minimum temperature as reported by the corresponding NWS Climatological Report (Daily) linked in the rules above. Preliminary NWS reporting and measurement methods may be subject to underlying rounding and conversion nuances. Traders should exercise caution when interpreting preliminary NWS data.",
        "arbitration_model": "kalshi_staff",
        "proposer": "platform_staff",
        "source": "NWS Climatological Report Chicago Midway",
        "source_status": "platform_named",
        "source_citation": "https://forecast.weather.gov/product.php?site=LOT&product=CLI&issuedby=MDW",
        "sources": [
          {
            "name": "NWS Climatological Report Chicago Midway",
            "url": "https://forecast.weather.gov/product.php?site=LOT&product=CLI&issuedby=MDW",
            "provenance": "platform_api"
          },
          {
            "name": "National Weather Service's Climatological Report (Daily)",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "NWS Climatological Report",
            "url": null,
            "provenance": "clearmarket_editorial"
          }
        ],
        "source_of_record": "National Weather Service's Climatological Report (Daily)",
        "source_mechanism": "single_authority",
        "source_type": null,
        "source_quality": "authoritative",
        "source_commitment": "named",
        "source_commitment_subtype": "named",
        "source_hedge_text": null
      },
      "rcg": {
        "grade": "A",
        "score": 97,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 0.01,
      "implied_probability": 0.01,
      "volume_24h_usd": 1.47,
      "volume_total_usd": 5.75,
      "settlement_style": "terminal",
      "direction": "between",
      "threshold": 59,
      "question_id": null,
      "also_on": null,
      "tags": [
        "chicago",
        "chicago minimum temperature",
        "temperature",
        "weather"
      ],
      "eligibility_screens": null
    },
    {
      "market_id": "CM-MKT-DLKCHNHSX0",
      "event_id": "CM-EVT-YF10Y857N2",
      "platform": "kalshi",
      "platform_market_id": "KXLOWTCHI-26AUG04-B60.5",
      "question": "Will the minimum temperature be 60-61° on Aug 4, 2026?",
      "description": "60° to 61°",
      "contract_type": "binary",
      "settlement_currency": "USD",
      "underlying_reference": "60° to 61°: National Weather Service Climatological Report for Chicago Midway on August 4, 2026 resolves whether the minimum temperature met the threshold, with Kalshi staff determination by August 5, 2026 at 7 p.m. UTC.",
      "close_at": "2026-08-05T06:00:00Z",
      "resolve_at": "2026-08-05T19:00:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "If the minimum temperature recorded at Chicago for Aug 4, 2026, is between 60-61° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\nData for CLIMDW can be found by clicking the following URL: https://www.weather.gov/wrh/Climate?wfo=lot, navigating to the \"Observed Weather\" tab, and choosing the location \"Chicago - Midway, IL\" with Daily Climate Report selected. Please use the latest version of the data for the desired date, keeping in mind that different cities update their reports at different frequencies.\n\nNot all weather data is the same. While checking a source like AccuWeather or Google Weather may help guide your decision, the official and final value used to determine this market is the maximum/minimum temperature as reported by the corresponding NWS Climatological Report (Daily) linked in the rules above. Preliminary NWS reporting and measurement methods may be subject to underlying rounding and conversion nuances. Traders should exercise caution when interpreting preliminary NWS data.",
        "arbitration_model": "kalshi_staff",
        "proposer": "platform_staff",
        "source": "NWS Climatological Report Chicago Midway",
        "source_status": "platform_named",
        "source_citation": "https://forecast.weather.gov/product.php?site=LOT&product=CLI&issuedby=MDW",
        "sources": [
          {
            "name": "NWS Climatological Report Chicago Midway",
            "url": "https://forecast.weather.gov/product.php?site=LOT&product=CLI&issuedby=MDW",
            "provenance": "platform_api"
          },
          {
            "name": "National Weather Service's Climatological Report (Daily)",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "NWS Climatological Report",
            "url": null,
            "provenance": "clearmarket_editorial"
          }
        ],
        "source_of_record": "National Weather Service's Climatological Report (Daily)",
        "source_mechanism": "single_authority",
        "source_type": null,
        "source_quality": "authoritative",
        "source_commitment": "named",
        "source_commitment_subtype": "named",
        "source_hedge_text": null
      },
      "rcg": {
        "grade": "A",
        "score": 97,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 0.01,
      "implied_probability": 0.01,
      "volume_24h_usd": 1.47,
      "volume_total_usd": 5.96,
      "settlement_style": "terminal",
      "direction": "between",
      "threshold": 61,
      "question_id": null,
      "also_on": null,
      "tags": [
        "chicago",
        "chicago minimum temperature",
        "temperature",
        "weather"
      ],
      "eligibility_screens": null
    },
    {
      "market_id": "CM-MKT-L8H3CMBM14",
      "event_id": "CM-EVT-YF10Y857N2",
      "platform": "kalshi",
      "platform_market_id": "KXLOWTCHI-26AUG04-B62.5",
      "question": "Will the minimum temperature be 62-63° on Aug 4, 2026?",
      "description": "62° to 63°",
      "contract_type": "binary",
      "settlement_currency": "USD",
      "underlying_reference": "62° to 63°: National Weather Service Climatological Report for Chicago Midway on August 4, 2026 resolves whether the minimum temperature met the threshold, with Kalshi staff determination by August 5, 2026 at 7 p.m. UTC.",
      "close_at": "2026-08-05T06:00:00Z",
      "resolve_at": "2026-08-05T19:00:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "If the minimum temperature recorded at Chicago for Aug 4, 2026, is between 62-63° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\nData for CLIMDW can be found by clicking the following URL: https://www.weather.gov/wrh/Climate?wfo=lot, navigating to the \"Observed Weather\" tab, and choosing the location \"Chicago - Midway, IL\" with Daily Climate Report selected. Please use the latest version of the data for the desired date, keeping in mind that different cities update their reports at different frequencies.\n\nNot all weather data is the same. While checking a source like AccuWeather or Google Weather may help guide your decision, the official and final value used to determine this market is the maximum/minimum temperature as reported by the corresponding NWS Climatological Report (Daily) linked in the rules above. Preliminary NWS reporting and measurement methods may be subject to underlying rounding and conversion nuances. Traders should exercise caution when interpreting preliminary NWS data.",
        "arbitration_model": "kalshi_staff",
        "proposer": "platform_staff",
        "source": "NWS Climatological Report Chicago Midway",
        "source_status": "platform_named",
        "source_citation": "https://forecast.weather.gov/product.php?site=LOT&product=CLI&issuedby=MDW",
        "sources": [
          {
            "name": "NWS Climatological Report Chicago Midway",
            "url": "https://forecast.weather.gov/product.php?site=LOT&product=CLI&issuedby=MDW",
            "provenance": "platform_api"
          },
          {
            "name": "National Weather Service's Climatological Report (Daily)",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "NWS Climatological Report",
            "url": null,
            "provenance": "clearmarket_editorial"
          }
        ],
        "source_of_record": "National Weather Service's Climatological Report (Daily)",
        "source_mechanism": "single_authority",
        "source_type": null,
        "source_quality": "authoritative",
        "source_commitment": "named",
        "source_commitment_subtype": "named",
        "source_hedge_text": null
      },
      "rcg": {
        "grade": "A",
        "score": 97,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 0.01,
      "implied_probability": 0.01,
      "volume_24h_usd": 3.07,
      "volume_total_usd": 15.41,
      "settlement_style": "terminal",
      "direction": "between",
      "threshold": 63,
      "question_id": null,
      "also_on": null,
      "tags": [
        "chicago",
        "chicago minimum temperature",
        "temperature",
        "weather"
      ],
      "eligibility_screens": null
    },
    {
      "market_id": "CM-MKT-Y6Y4TZKNL8",
      "event_id": "CM-EVT-YF10Y857N2",
      "platform": "kalshi",
      "platform_market_id": "KXLOWTCHI-26AUG04-B64.5",
      "question": "Will the minimum temperature be 64-65° on Aug 4, 2026?",
      "description": "64° to 65°",
      "contract_type": "binary",
      "settlement_currency": "USD",
      "underlying_reference": "64° to 65°: National Weather Service Climatological Report for Chicago Midway on August 4, 2026 resolves whether the minimum temperature met the threshold, with Kalshi staff determination by August 5, 2026 at 7 p.m. UTC.",
      "close_at": "2026-08-05T06:00:00Z",
      "resolve_at": "2026-08-05T19:00:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "If the minimum temperature recorded at Chicago for Aug 4, 2026, is between 64-65° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\nData for CLIMDW can be found by clicking the following URL: https://www.weather.gov/wrh/Climate?wfo=lot, navigating to the \"Observed Weather\" tab, and choosing the location \"Chicago - Midway, IL\" with Daily Climate Report selected. Please use the latest version of the data for the desired date, keeping in mind that different cities update their reports at different frequencies.\n\nNot all weather data is the same. While checking a source like AccuWeather or Google Weather may help guide your decision, the official and final value used to determine this market is the maximum/minimum temperature as reported by the corresponding NWS Climatological Report (Daily) linked in the rules above. Preliminary NWS reporting and measurement methods may be subject to underlying rounding and conversion nuances. Traders should exercise caution when interpreting preliminary NWS data.",
        "arbitration_model": "kalshi_staff",
        "proposer": "platform_staff",
        "source": "NWS Climatological Report Chicago Midway",
        "source_status": "platform_named",
        "source_citation": "https://forecast.weather.gov/product.php?site=LOT&product=CLI&issuedby=MDW",
        "sources": [
          {
            "name": "NWS Climatological Report Chicago Midway",
            "url": "https://forecast.weather.gov/product.php?site=LOT&product=CLI&issuedby=MDW",
            "provenance": "platform_api"
          },
          {
            "name": "National Weather Service's Climatological Report (Daily)",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "NWS Climatological Report",
            "url": null,
            "provenance": "clearmarket_editorial"
          }
        ],
        "source_of_record": "National Weather Service's Climatological Report (Daily)",
        "source_mechanism": "single_authority",
        "source_type": null,
        "source_quality": "authoritative",
        "source_commitment": "named",
        "source_commitment_subtype": "named",
        "source_hedge_text": null
      },
      "rcg": {
        "grade": "A",
        "score": 97,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 0.01,
      "implied_probability": 0.01,
      "volume_24h_usd": 10.59,
      "volume_total_usd": 13.29,
      "settlement_style": "terminal",
      "direction": "between",
      "threshold": 65,
      "question_id": null,
      "also_on": null,
      "tags": [
        "chicago",
        "chicago minimum temperature",
        "temperature",
        "weather"
      ],
      "eligibility_screens": null
    },
    {
      "market_id": "CM-MKT-2JKQ31ZN34",
      "event_id": "CM-EVT-YF10Y857N2",
      "platform": "kalshi",
      "platform_market_id": "KXLOWTCHI-26AUG04-T65",
      "question": "Will the minimum temperature be >65° on Aug 4, 2026?",
      "description": "66° or above",
      "contract_type": "binary",
      "settlement_currency": "USD",
      "underlying_reference": "66° or above: National Weather Service Climatological Report for Chicago Midway on August 4, 2026 resolves whether the minimum temperature met the threshold, with Kalshi staff determination by August 5, 2026 at 7 p.m. UTC.",
      "close_at": "2026-08-05T06:00:00Z",
      "resolve_at": "2026-08-05T19:00:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "If the minimum temperature recorded at Chicago for Aug 4, 2026, is greater than 65° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\nData for CLIMDW can be found by clicking the following URL: https://www.weather.gov/wrh/Climate?wfo=lot, navigating to the \"Observed Weather\" tab, and choosing the location \"Chicago - Midway, IL\" with Daily Climate Report selected. Please use the latest version of the data for the desired date, keeping in mind that different cities update their reports at different frequencies.\n\nNot all weather data is the same. While checking a source like AccuWeather or Google Weather may help guide your decision, the official and final value used to determine this market is the maximum/minimum temperature as reported by the corresponding NWS Climatological Report (Daily) linked in the rules above. Preliminary NWS reporting and measurement methods may be subject to underlying rounding and conversion nuances. Traders should exercise caution when interpreting preliminary NWS data.",
        "arbitration_model": "kalshi_staff",
        "proposer": "platform_staff",
        "source": "NWS Climatological Report Chicago Midway",
        "source_status": "platform_named",
        "source_citation": "https://forecast.weather.gov/product.php?site=LOT&product=CLI&issuedby=MDW",
        "sources": [
          {
            "name": "NWS Climatological Report Chicago Midway",
            "url": "https://forecast.weather.gov/product.php?site=LOT&product=CLI&issuedby=MDW",
            "provenance": "platform_api"
          },
          {
            "name": "National Weather Service's Climatological Report (Daily)",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "NWS Climatological Report",
            "url": null,
            "provenance": "clearmarket_editorial"
          }
        ],
        "source_of_record": "National Weather Service's Climatological Report (Daily)",
        "source_mechanism": "single_authority",
        "source_type": null,
        "source_quality": "authoritative",
        "source_commitment": "named",
        "source_commitment_subtype": "named",
        "source_hedge_text": null
      },
      "rcg": {
        "grade": "A",
        "score": 97,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 0.99,
      "implied_probability": 0.99,
      "volume_24h_usd": 6047.12,
      "volume_total_usd": 6457.97,
      "settlement_style": "terminal",
      "direction": "above",
      "threshold": 65,
      "question_id": null,
      "also_on": null,
      "tags": [
        "chicago",
        "chicago minimum temperature",
        "temperature",
        "weather"
      ],
      "eligibility_screens": null
    }
  ],
  "resolution_log": [],
  "_provenance": {
    "source": "clearmarket.fyi",
    "ref": "CM-EVT-YF10Y857N2",
    "terms": "Attribution required. clearmarket.fyi"
  }
}