{
  "_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-41WZWLFHH0",
  "slug": "kxhightbos-26jul23",
  "question": "Will the highest temperature in Boston on July 23, 2026 exceed 90°F?",
  "category": "climate",
  "event_type": "BINARY",
  "ladder_distribution": null,
  "tags": [
    "temperature-forecast",
    "boston-weather",
    "summer-2026",
    "weather-numeric",
    "daily-maximum",
    "climate"
  ],
  "catalyst_types": [],
  "catalyst_dates": [],
  "editorial_notes": "These six Kalshi contracts collectively track the daily maximum temperature in Boston on July 23, 2026. The contracts partition the outcome space into six mutually exclusive Fahrenheit bands, from below 78 degrees to above 85 degrees. Together they form an implied probability distribution over the full range of plausible readings. Resolution follows Kalshi staff determination using the National Weather Service Boston Climatological Report.",
  "venues_covered": [
    "kalshi"
  ],
  "primary_market_id": "CM-MKT-XDXMD7S7R0",
  "current_primary_mark": {
    "last_price": 0.93,
    "implied_probability": 0.93
  },
  "created_at": "2026-07-23T21:11:14.426158+00:00",
  "updated_at": "2026-07-23T21:11:14.426158+00:00",
  "markets": [
    {
      "market_id": "CM-MKT-8VKW91H384",
      "event_id": "CM-EVT-41WZWLFHH0",
      "platform": "kalshi",
      "platform_market_id": "KXHIGHTBOS-26JUL23-T78",
      "question": "Will the maximum temperature be <78° on Jul 23, 2026?",
      "description": "77° or below",
      "contract_type": "binary",
      "settlement_currency": "USD",
      "underlying_reference": "77° or below: National Weather Service Boston Climatological Report determines maximum temperature for the referenced date by 7 p.m. ET on July 24, 2026.",
      "close_at": "2026-07-24T05:00:00Z",
      "resolve_at": "2026-07-24T19:00:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "If the maximum temperature recorded at Boston for Jul 23, 2026, is less than 78° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\nData for CLIBOS can be found by clicking the following URL: https://www.weather.gov/wrh/climate?wfo=box, navigating to the \"Observed Weather\" tab, and choosing the location \"Boston (Logan Airport), MA\" 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 Boston",
        "source_status": "platform_named",
        "source_citation": "https://forecast.weather.gov/product.php?site=BOX&product=CLI&issuedby=BOS",
        "sources": [
          {
            "name": "NWS Climatological Report Boston",
            "url": "https://forecast.weather.gov/product.php?site=BOX&product=CLI&issuedby=BOS",
            "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": "B",
        "score": 63,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 0.01,
      "implied_probability": 0.01,
      "volume_24h_usd": 47.43,
      "volume_total_usd": 54.24,
      "settlement_style": "terminal",
      "direction": "below",
      "threshold": 78,
      "question_id": null,
      "also_on": null,
      "tags": [
        "boston",
        "boston maximum temperature",
        "temperature",
        "weather"
      ],
      "eligibility_screens": null
    },
    {
      "market_id": "CM-MKT-CH36NVLDR4",
      "event_id": "CM-EVT-41WZWLFHH0",
      "platform": "kalshi",
      "platform_market_id": "KXHIGHTBOS-26JUL23-B78.5",
      "question": "Will the maximum temperature be 78-79° on Jul 23, 2026?",
      "description": "78° to 79°",
      "contract_type": "binary",
      "settlement_currency": "USD",
      "underlying_reference": "78° to 79°: National Weather Service Boston Climatological Report determines maximum temperature for the referenced date by 7 p.m. ET on July 24, 2026.",
      "close_at": "2026-07-24T05:00:00Z",
      "resolve_at": "2026-07-24T19:00:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "If the maximum temperature recorded at Boston for Jul 23, 2026, is between 78-79° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\nData for CLIBOS can be found by clicking the following URL: https://www.weather.gov/wrh/climate?wfo=box, navigating to the \"Observed Weather\" tab, and choosing the location \"Boston (Logan Airport), MA\" 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 Boston",
        "source_status": "platform_named",
        "source_citation": "https://forecast.weather.gov/product.php?site=BOX&product=CLI&issuedby=BOS",
        "sources": [
          {
            "name": "NWS Climatological Report Boston",
            "url": "https://forecast.weather.gov/product.php?site=BOX&product=CLI&issuedby=BOS",
            "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": "B",
        "score": 63,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 0.01,
      "implied_probability": 0.01,
      "volume_24h_usd": 50.55,
      "volume_total_usd": 52.47,
      "settlement_style": "terminal",
      "direction": "between",
      "threshold": 79,
      "question_id": null,
      "also_on": null,
      "tags": [
        "boston",
        "boston maximum temperature",
        "temperature",
        "weather"
      ],
      "eligibility_screens": null
    },
    {
      "market_id": "CM-MKT-XDXMD7S7R0",
      "event_id": "CM-EVT-41WZWLFHH0",
      "platform": "kalshi",
      "platform_market_id": "KXHIGHTBOS-26JUL23-B80.5",
      "question": "Will the maximum temperature be 80-81° on Jul 23, 2026?",
      "description": "80° to 81°",
      "contract_type": "binary",
      "settlement_currency": "USD",
      "underlying_reference": "80° to 81°: National Weather Service Boston Climatological Report determines maximum temperature for the referenced date by 7 p.m. ET on July 24, 2026.",
      "close_at": "2026-07-24T05:00:00Z",
      "resolve_at": "2026-07-24T19:00:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "If the maximum temperature recorded at Boston for Jul 23, 2026, is between 80-81° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\nData for CLIBOS can be found by clicking the following URL: https://www.weather.gov/wrh/climate?wfo=box, navigating to the \"Observed Weather\" tab, and choosing the location \"Boston (Logan Airport), MA\" 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 Boston",
        "source_status": "platform_named",
        "source_citation": "https://forecast.weather.gov/product.php?site=BOX&product=CLI&issuedby=BOS",
        "sources": [
          {
            "name": "NWS Climatological Report Boston",
            "url": "https://forecast.weather.gov/product.php?site=BOX&product=CLI&issuedby=BOS",
            "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": "B",
        "score": 63,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 0.93,
      "implied_probability": 0.93,
      "volume_24h_usd": 4504.55,
      "volume_total_usd": 5282.14,
      "settlement_style": "terminal",
      "direction": "between",
      "threshold": 81,
      "question_id": null,
      "also_on": null,
      "tags": [
        "boston",
        "boston maximum temperature",
        "temperature",
        "weather"
      ],
      "eligibility_screens": null
    },
    {
      "market_id": "CM-MKT-FYRHLBW8P4",
      "event_id": "CM-EVT-41WZWLFHH0",
      "platform": "kalshi",
      "platform_market_id": "KXHIGHTBOS-26JUL23-B82.5",
      "question": "Will the maximum temperature be 82-83° on Jul 23, 2026?",
      "description": "82° to 83°",
      "contract_type": "binary",
      "settlement_currency": "USD",
      "underlying_reference": "82° to 83°: National Weather Service Boston Climatological Report determines maximum temperature for the referenced date by 7 p.m. ET on July 24, 2026.",
      "close_at": "2026-07-24T05:00:00Z",
      "resolve_at": "2026-07-24T19:00:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "If the maximum temperature recorded at Boston for Jul 23, 2026, is between 82-83° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\nData for CLIBOS can be found by clicking the following URL: https://www.weather.gov/wrh/climate?wfo=box, navigating to the \"Observed Weather\" tab, and choosing the location \"Boston (Logan Airport), MA\" 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 Boston",
        "source_status": "platform_named",
        "source_citation": "https://forecast.weather.gov/product.php?site=BOX&product=CLI&issuedby=BOS",
        "sources": [
          {
            "name": "NWS Climatological Report Boston",
            "url": "https://forecast.weather.gov/product.php?site=BOX&product=CLI&issuedby=BOS",
            "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": "B",
        "score": 63,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 0.05,
      "implied_probability": 0.05,
      "volume_24h_usd": 189.71,
      "volume_total_usd": 198.22,
      "settlement_style": "terminal",
      "direction": "between",
      "threshold": 83,
      "question_id": null,
      "also_on": null,
      "tags": [
        "boston",
        "boston maximum temperature",
        "temperature",
        "weather"
      ],
      "eligibility_screens": null
    },
    {
      "market_id": "CM-MKT-V6WDNB6DX7",
      "event_id": "CM-EVT-41WZWLFHH0",
      "platform": "kalshi",
      "platform_market_id": "KXHIGHTBOS-26JUL23-B84.5",
      "question": "Will the maximum temperature be 84-85° on Jul 23, 2026?",
      "description": "84° to 85°",
      "contract_type": "binary",
      "settlement_currency": "USD",
      "underlying_reference": "84° to 85°: National Weather Service Boston Climatological Report determines maximum temperature for the referenced date by 7 p.m. ET on July 24, 2026.",
      "close_at": "2026-07-24T05:00:00Z",
      "resolve_at": "2026-07-24T19:00:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "If the maximum temperature recorded at Boston for Jul 23, 2026, is between 84-85° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\nData for CLIBOS can be found by clicking the following URL: https://www.weather.gov/wrh/climate?wfo=box, navigating to the \"Observed Weather\" tab, and choosing the location \"Boston (Logan Airport), MA\" 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 Boston",
        "source_status": "platform_named",
        "source_citation": "https://forecast.weather.gov/product.php?site=BOX&product=CLI&issuedby=BOS",
        "sources": [
          {
            "name": "NWS Climatological Report Boston",
            "url": "https://forecast.weather.gov/product.php?site=BOX&product=CLI&issuedby=BOS",
            "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": "B",
        "score": 63,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 0.01,
      "implied_probability": 0.01,
      "volume_24h_usd": 40.94,
      "volume_total_usd": 42.62,
      "settlement_style": "terminal",
      "direction": "between",
      "threshold": 85,
      "question_id": null,
      "also_on": null,
      "tags": [
        "boston",
        "boston maximum temperature",
        "temperature",
        "weather"
      ],
      "eligibility_screens": null
    },
    {
      "market_id": "CM-MKT-NXVXJC4DF8",
      "event_id": "CM-EVT-41WZWLFHH0",
      "platform": "kalshi",
      "platform_market_id": "KXHIGHTBOS-26JUL23-T85",
      "question": "Will the maximum temperature be >85° on Jul 23, 2026?",
      "description": "86° or above",
      "contract_type": "binary",
      "settlement_currency": "USD",
      "underlying_reference": "86° or above: National Weather Service Boston Climatological Report determines maximum temperature for the referenced date by 7 p.m. ET on July 24, 2026.",
      "close_at": "2026-07-24T05:00:00Z",
      "resolve_at": "2026-07-24T19:00:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "If the maximum temperature recorded at Boston for Jul 23, 2026, is greater than 85° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\nData for CLIBOS can be found by clicking the following URL: https://www.weather.gov/wrh/climate?wfo=box, navigating to the \"Observed Weather\" tab, and choosing the location \"Boston (Logan Airport), MA\" 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 Boston",
        "source_status": "platform_named",
        "source_citation": "https://forecast.weather.gov/product.php?site=BOX&product=CLI&issuedby=BOS",
        "sources": [
          {
            "name": "NWS Climatological Report Boston",
            "url": "https://forecast.weather.gov/product.php?site=BOX&product=CLI&issuedby=BOS",
            "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": "B",
        "score": 63,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 0.01,
      "implied_probability": 0.01,
      "volume_24h_usd": 10.89,
      "volume_total_usd": 17.96,
      "settlement_style": "terminal",
      "direction": "above",
      "threshold": 85,
      "question_id": null,
      "also_on": null,
      "tags": [
        "boston",
        "boston maximum temperature",
        "temperature",
        "weather"
      ],
      "eligibility_screens": null
    }
  ],
  "resolution_log": [],
  "_provenance": {
    "source": "clearmarket.fyi",
    "ref": "CM-EVT-41WZWLFHH0",
    "terms": "Attribution required. clearmarket.fyi"
  }
}