Official observations from the National Weather Service Automated Surface Observing System at Denver International Airport (KDEN) confirm the highest temperature on April 18 reached 56-57°F, driving trader consensus to 100% implied probability for that outcome. This aligns with post-frontal cool air advection following overnight freeze warnings, where clear skies and light winds enabled modest diurnal heating under a stable boundary layer, but persistent cold mid-level temperatures suppressed peaks well below the mid-April normal of 62°F. NOAA model guidance from April 17 accurately forecasted these subdued highs amid high-pressure ridging. Realistic challenges are minimal—only a rare post-validation data revision from sensor anomalies could alter resolution, as final climate summaries finalize such records.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Denver on April 18?
Highest temperature in Denver on April 18?
56-57°F 100.0%
47°F or below <1%
48-49°F <1%
50-51°F <1%
$82,352 Vol.
$82,352 Vol.
Apr 18, 2026
47°F or below
No
48-49°F
No
50-51°F
No
52-53°F
No
54-55°F
No
56-57°F
Yes
58-59°F
No
60-61°F
No
62-63°F
No
64-65°F
No
66°F or higher
No
56-57°F 100.0%
47°F or below <1%
48-49°F <1%
50-51°F <1%
$82,352 Vol.
$82,352 Vol.
Apr 18, 2026
47°F or below
$10,958 Vol.
No
48-49°F
$7,277 Vol.
No
50-51°F
$9,167 Vol.
No
52-53°F
$8,644 Vol.
No
54-55°F
$8,053 Vol.
No
56-57°F
$8,518 Vol.
Yes
58-59°F
$6,993 Vol.
No
60-61°F
$5,220 Vol.
No
62-63°F
$4,956 Vol.
No
64-65°F
$3,318 Vol.
No
66°F or higher
$9,248 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded at the Buckley Space Force Base Station in degrees Fahrenheit on 18 Apr '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Buckley Space Force Base Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/co/aurora/KBKF.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Official observations from the National Weather Service Automated Surface Observing System at Denver International Airport (KDEN) confirm the highest temperature on April 18 reached 56-57°F, driving trader consensus to 100% implied probability for that outcome. This aligns with post-frontal cool air advection following overnight freeze warnings, where clear skies and light winds enabled modest diurnal heating under a stable boundary layer, but persistent cold mid-level temperatures suppressed peaks well below the mid-April normal of 62°F. NOAA model guidance from April 17 accurately forecasted these subdued highs amid high-pressure ridging. Realistic challenges are minimal—only a rare post-validation data revision from sensor anomalies could alter resolution, as final climate summaries finalize such records.
This market will resolve to the temperature range that contains the highest temperature recorded at the Buckley Space Force Base Station in degrees Fahrenheit on 18 Apr '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Buckley Space Force Base Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/co/aurora/KBKF.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Buckley Space Force Base Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/co/aurora/KBKF.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Apr 16, 2026, 1:28 AM ET
Volume
$82,352End Date
Apr 18, 2026Market Opened
Apr 16, 2026, 1:28 AM ETResolution Source
https://www.wunderground.com/history/daily/us/co/aurora/KBKFResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded at the Buckley Space Force Base Station in degrees Fahrenheit on 18 Apr '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Buckley Space Force Base Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/co/aurora/KBKF.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Official observations from the National Weather Service Automated Surface Observing System at Denver International Airport (KDEN) confirm the highest temperature on April 18 reached 56-57°F, driving trader consensus to 100% implied probability for that outcome. This aligns with post-frontal cool air advection following overnight freeze warnings, where clear skies and light winds enabled modest diurnal heating under a stable boundary layer, but persistent cold mid-level temperatures suppressed peaks well below the mid-April normal of 62°F. NOAA model guidance from April 17 accurately forecasted these subdued highs amid high-pressure ridging. Realistic challenges are minimal—only a rare post-validation data revision from sensor anomalies could alter resolution, as final climate summaries finalize such records.
This market will resolve to the temperature range that contains the highest temperature recorded at the Buckley Space Force Base Station in degrees Fahrenheit on 18 Apr '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Buckley Space Force Base Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/co/aurora/KBKF.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Buckley Space Force Base Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/co/aurora/KBKF.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Volume
$82,352End Date
Apr 18, 2026Market Opened
Apr 16, 2026, 1:28 AM ETResolution Source
https://www.wunderground.com/history/daily/us/co/aurora/KBKFResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from the National Weather Service Automated Surface Observing System at Denver International Airport (KDEN) confirm the highest temperature on April 18 reached 56-57°F, driving trader consensus to 100% implied probability for that outcome. This aligns with post-frontal cool air advection following overnight freeze warnings, where clear skies and light winds enabled modest diurnal heating under a stable boundary layer, but persistent cold mid-level temperatures suppressed peaks well below the mid-April normal of 62°F. NOAA model guidance from April 17 accurately forecasted these subdued highs amid high-pressure ridging. Realistic challenges are minimal—only a rare post-validation data revision from sensor anomalies could alter resolution, as final climate summaries finalize such records.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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