**Strong market consensus on temperatures at or below 2°C in Helsinki on September 7 reflects aggregated trader assessments of official observational data and model outputs indicating rapid overnight cooling under clear, calm conditions.** Finnish Meteorological Institute reports and nearby station readings show the daily minimum occurring in the pre-dawn hours amid light winds and high pressure, consistent with the seasonal transition toward longer nights. Historical September climatology places average lows near 10–11°C, yet current model consensus from multiple runs supports an unusually sharp drop, with resolution hinging on the precise minimum recorded at the standard Helsinki observation site. Any upward revision in final verified data or station-specific microclimate effects could theoretically shift outcomes, though the overwhelming positioning implies limited uncertainty in the closing hours of the trading window.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Helsinki on September 7?
2°C or below 100.0%
3°C <1%
4°C <1%
5°C <1%
$1,123 Vol.
$1,123 Vol.
2°C or below
100%
3°C
<1%
4°C
<1%
5°C
<1%
6°C
<1%
7°C
<1%
8°C
<1%
9°C
<1%
10°C
<1%
11°C
<1%
12°C or higher
<1%
2°C or below 100.0%
3°C <1%
4°C <1%
5°C <1%
$1,123 Vol.
$1,123 Vol.
2°C or below
100%
3°C
<1%
4°C
<1%
5°C
<1%
6°C
<1%
7°C
<1%
8°C
<1%
9°C
<1%
10°C
<1%
11°C
<1%
12°C or higher
<1%
The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=efhk
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Sep 5, 2026, 12:31 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=efhk
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...**Strong market consensus on temperatures at or below 2°C in Helsinki on September 7 reflects aggregated trader assessments of official observational data and model outputs indicating rapid overnight cooling under clear, calm conditions.** Finnish Meteorological Institute reports and nearby station readings show the daily minimum occurring in the pre-dawn hours amid light winds and high pressure, consistent with the seasonal transition toward longer nights. Historical September climatology places average lows near 10–11°C, yet current model consensus from multiple runs supports an unusually sharp drop, with resolution hinging on the precise minimum recorded at the standard Helsinki observation site. Any upward revision in final verified data or station-specific microclimate effects could theoretically shift outcomes, though the overwhelming positioning implies limited uncertainty in the closing hours of the trading window.
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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