{"source":"kalshi","id":"KXLOWTBOS-26MAY30","ticker":"KXLOWTBOS-26MAY30","slug":"KXLOWTBOS-26MAY30","title":"Lowest temperature in Boston on May 30, 2026?","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-05-29T14:00:00Z","end_date":"2026-06-06T14:00:00Z","closed_time":null,"volume":4444.06,"volume_24hr":3202.8599999999997,"volume_24h_change":null,"normalized_vol_24hr":22.584325790405273,"normalized_volume":19.03557014465332,"liquidity":null,"open_interest":3445.9,"categories":["Climate and Weather"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"43° to 44°","top_outcome_probability":0.62,"top_outcome_prob_24h_change":0.22999999999999998,"top_outcome_volume_24h_change":220.89,"updated_at":"2026-05-30T21:40:50.892447Z","fetched_at":"2026-05-30T21:40:50.892447Z","added_at":"2026-05-29T14:04:00.782181Z","url":"https://kalshi.com/markets/kxlowtbos/lowest-temperature-in-boston-on-may-30-2026/kxlowtbos-26may30","chart_24h":[1197.66,1198.66,1413.18,1448.18,2048.97,2049.97,2051.97,2281.54,2319.09,2367.06,2447.37,2449.18,2449.38,2474.86,2474.86,2930.04,2930.04,2965.24,2984.36,3236.93,3194.87,3227.76,3247.65,3990.0499999999997,3148.21,3175.4,3156.4,3020.4,3020.4,3020.48,3141.8599999999997],"markets":[{"source":"kalshi","id":"KXLOWTBOS-26MAY30-B43.5","event_id":"KXLOWTBOS-26MAY30","slug":"KXLOWTBOS-26MAY30-B43.5","question":"Will the minimum temperature be 43-44° on May 30, 2026?","group_item_title":"43° to 44°","description":"If the minimum temperature recorded at Boston for May 30, 2026, is between 43-44° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\n---\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.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.62,0.38],"probability":0.62,"spread":0.35,"active":true,"closed":false,"start_date":"2026-05-29T14:00:00Z","end_date":"2026-06-06T14:00:00Z","closed_time":"2026-05-31T05:00:00Z","volume":226.29,"volume_24hr":223.32,"prob_24h_change":0.22999999999999998,"volume_24h_change":220.89,"normalized_vol_24hr":10.858282089233398,"normalized_volume":9.55370044708252,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-30T21:40:50.972830Z","fetched_at":"2026-05-30T21:40:50.972830Z","added_at":"2026-05-29T14:04:00.947832Z","url":"https://kalshi.com/markets/kxlowtbos/lowest-temperature-in-boston-on-may-30-2026/kxlowtbos-26may30","event_title":"Lowest temperature in Boston on May 30, 2026?","chart_24h":[0.39,0.39,0.39,0.2,0.23,0.19,0.15,0.15,0.15,0.15,0.15,0.15,0.15,0.28,0.28,0.28,0.28,0.14,0.14,0.14,0.14,0.13,0.45,0.45,0.45,0.45,0.56,0.56,0.56,0.62]},{"source":"kalshi","id":"KXLOWTBOS-26MAY30-B45.5","event_id":"KXLOWTBOS-26MAY30","slug":"KXLOWTBOS-26MAY30-B45.5","question":"Will the minimum temperature be 45-46° on May 30, 2026?","group_item_title":"45° to 46°","description":"If the minimum temperature recorded at Boston for May 30, 2026, is between 45-46° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\n---\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.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.36,0.64],"probability":0.36,"spread":0.42,"active":true,"closed":false,"start_date":"2026-05-29T14:00:00Z","end_date":"2026-06-06T14:00:00Z","closed_time":"2026-05-31T05:00:00Z","volume":568.17,"volume_24hr":176.81,"prob_24h_change":0.02999999999999997,"volume_24h_change":-214.55,"normalized_vol_24hr":9.946098327636719,"normalized_volume":13.059501647949219,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-30T21:27:33.181367Z","fetched_at":"2026-05-30T21:26:49.041381Z","added_at":"2026-05-29T14:04:00.947832Z","url":"https://kalshi.com/markets/kxlowtbos/lowest-temperature-in-boston-on-may-30-2026/kxlowtbos-26may30","event_title":"Lowest temperature in Boston on May 30, 2026?","chart_24h":[0.33,0.52,0.51,0.51,0.51,0.51,0.51,0.51,0.46,0.46,0.53,0.5,0.5,0.5,0.53,0.56,0.56,0.56,0.56,0.56,0.63,0.63,0.63,0.63,0.63,0.43,0.43,0.26,0.26,0.63]},{"source":"kalshi","id":"KXLOWTBOS-26MAY30-T39","event_id":"KXLOWTBOS-26MAY30","slug":"KXLOWTBOS-26MAY30-T39","question":"Will the minimum temperature be <39° on May 30, 2026?","group_item_title":"38° or below","description":"If the minimum temperature recorded at Boston for May 30, 2026, is less than 39° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\n---\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.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.04,0.96],"probability":0.04,"spread":0.01,"active":true,"closed":false,"start_date":"2026-05-29T14:00:00Z","end_date":"2026-06-06T14:00:00Z","closed_time":"2026-05-31T05:00:00Z","volume":312.16,"volume_24hr":4.0,"prob_24h_change":0.03,"volume_24h_change":-304.16,"normalized_vol_24hr":0.9598904848098755,"normalized_volume":10.715561866760254,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-30T17:17:17.426629Z","fetched_at":"2026-05-30T17:17:17.426629Z","added_at":"2026-05-29T14:04:00.947832Z","url":"https://kalshi.com/markets/kxlowtbos/lowest-temperature-in-boston-on-may-30-2026/kxlowtbos-26may30","event_title":"Lowest temperature in Boston on May 30, 2026?","chart_24h":[0.01,0.04,0.04,0.04,0.04,0.04,0.04,0.04]},{"source":"kalshi","id":"KXLOWTBOS-26MAY30-B39.5","event_id":"KXLOWTBOS-26MAY30","slug":"KXLOWTBOS-26MAY30-B39.5","question":"Will the minimum temperature be 39-40° on May 30, 2026?","group_item_title":"39° to 40°","description":"If the minimum temperature recorded at Boston for May 30, 2026, is between 39-40° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\n---\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.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.01,0.99],"probability":0.01,"spread":0.02,"active":true,"closed":false,"start_date":"2026-05-29T14:00:00Z","end_date":"2026-06-06T14:00:00Z","closed_time":"2026-05-31T05:00:00Z","volume":710.77,"volume_24hr":601.65,"prob_24h_change":-0.07,"volume_24h_change":492.53,"normalized_vol_24hr":15.184991836547852,"normalized_volume":13.996182441711426,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-30T20:45:49.632552Z","fetched_at":"2026-05-30T20:45:05.285416Z","added_at":"2026-05-29T14:04:00.947832Z","url":"https://kalshi.com/markets/kxlowtbos/lowest-temperature-in-boston-on-may-30-2026/kxlowtbos-26may30","event_title":"Lowest temperature in Boston on May 30, 2026?","chart_24h":[0.08,0.04,0.02,0.01,0.01,0.01,0.01,0.01,0.01,0.01]},{"source":"kalshi","id":"KXLOWTBOS-26MAY30-B41.5","event_id":"KXLOWTBOS-26MAY30","slug":"KXLOWTBOS-26MAY30-B41.5","question":"Will the minimum temperature be 41-42° on May 30, 2026?","group_item_title":"41° to 42°","description":"If the minimum temperature recorded at Boston for May 30, 2026, is between 41-42° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\n---\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.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.01,0.99],"probability":0.01,"spread":0.09000000000000001,"active":true,"closed":false,"start_date":"2026-05-29T14:00:00Z","end_date":"2026-06-06T14:00:00Z","closed_time":"2026-05-31T05:00:00Z","volume":700.23,"volume_24hr":312.75,"prob_24h_change":-0.1,"volume_24h_change":-25.730000000000018,"normalized_vol_24hr":12.246074676513672,"normalized_volume":13.932669639587402,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-30T21:41:36.720670Z","fetched_at":"2026-05-30T21:40:50.972830Z","added_at":"2026-05-29T14:04:00.947832Z","url":"https://kalshi.com/markets/kxlowtbos/lowest-temperature-in-boston-on-may-30-2026/kxlowtbos-26may30","event_title":"Lowest temperature in Boston on May 30, 2026?","chart_24h":[0.11,0.04,0.04,0.04,0.04,0.05,0.05,0.04,0.04,0.04,0.03,0.03,0.02,0.02,0.1,0.1,0.1,0.01,0.01,0.01,0.01,0.01,0.01,0.01,0.01]},{"source":"kalshi","id":"KXLOWTBOS-26MAY30-T46","event_id":"KXLOWTBOS-26MAY30","slug":"KXLOWTBOS-26MAY30-T46","question":"Will the minimum temperature be >46° on May 30, 2026?","group_item_title":"47° or above","description":"If the minimum temperature recorded at Boston for May 30, 2026, is greater than 46° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\n---\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.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.01,0.99],"probability":0.01,"spread":0.01,"active":true,"closed":false,"start_date":"2026-05-29T14:00:00Z","end_date":"2026-06-06T14:00:00Z","closed_time":"2026-05-31T05:00:00Z","volume":1926.44,"volume_24hr":1884.33,"prob_24h_change":-0.12000000000000001,"volume_24h_change":1836.22,"normalized_vol_24hr":21.078027725219727,"normalized_volume":18.56405258178711,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-30T21:27:33.181367Z","fetched_at":"2026-05-30T21:26:49.041381Z","added_at":"2026-05-29T14:04:00.947832Z","url":"https://kalshi.com/markets/kxlowtbos/lowest-temperature-in-boston-on-may-30-2026/kxlowtbos-26may30","event_title":"Lowest temperature in Boston on May 30, 2026?","chart_24h":[0.13,0.13,0.12,0.24,0.25,0.25,0.25,0.37,0.37,0.37,0.39,0.56,0.25,0.24,0.24,0.23,0.23,0.23,0.28,0.32,0.37,0.28,0.15,0.12,0.08,0.08,0.01,0.01,0.01,0.01]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXLOWTBOS-26MAY30","as_of":"2026-05-30T21:43:13.190380Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"Lowest temperature in Boston on May 30, 2026?\" — top market at 1% probability across 6 outcomes","source_url":null}}