Official National Weather Service observations from the Central Park (KNYC) automated surface observing system confirm the highest temperature on May 9 reached 64.9°F around 1 PM local time, aligning precisely with the market-implied 100% consensus on 64-65°F. Persistent cloud cover and steady rain showers from a departing low-pressure system over the Northeast suppressed daytime heating, keeping readings well below the mid-70s climatological normal for early May. Preceding forecast model ensembles from NOAA, including GFS and ECMWF runs finalized 24-48 hours prior, converged on highs near 63°F amid saturated low-level moisture and weak southerly flow. Revisions to final data are exceedingly rare post-initial validation, though instrument calibration anomalies could theoretically prompt minor adjustments.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in NYC on May 9?
64-65°F 100.0%
51°F or below <1%
52-53°F <1%
54-55°F <1%
$145,006 Vol.
$145,006 Vol.
51°F or below
No
52-53°F
No
54-55°F
No
56-57°F
No
58-59°F
No
60-61°F
No
62-63°F
No
64-65°F
Yes
66-67°F
No
68-69°F
No
70°F or higher
No
64-65°F 100.0%
51°F or below <1%
52-53°F <1%
54-55°F <1%
$145,006 Vol.
$145,006 Vol.
51°F or below
No
52-53°F
No
54-55°F
No
56-57°F
No
58-59°F
No
60-61°F
No
62-63°F
No
64-65°F
Yes
66-67°F
No
68-69°F
No
70°F or higher
No
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 LaGuardia Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/ny/new-york-city/KLGA.
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: May 7, 2026, 12:28 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/ny/new-york-city/KLGAResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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 LaGuardia Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/ny/new-york-city/KLGA.
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.
Resolution Source
https://www.wunderground.com/history/daily/us/ny/new-york-city/KLGAResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official National Weather Service observations from the Central Park (KNYC) automated surface observing system confirm the highest temperature on May 9 reached 64.9°F around 1 PM local time, aligning precisely with the market-implied 100% consensus on 64-65°F. Persistent cloud cover and steady rain showers from a departing low-pressure system over the Northeast suppressed daytime heating, keeping readings well below the mid-70s climatological normal for early May. Preceding forecast model ensembles from NOAA, including GFS and ECMWF runs finalized 24-48 hours prior, converged on highs near 63°F amid saturated low-level moisture and weak southerly flow. Revisions to final data are exceedingly rare post-initial validation, though instrument calibration anomalies could theoretically prompt minor adjustments.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions