Current forecasts from multiple models show Mexico City overnight lows stabilizing near 12–13°C on September 21, driven by the city’s high elevation of roughly 2,240 meters, light northerly winds, and moderate humidity that permit efficient radiative cooling after sunset under partly cloudy skies. Subtle differences between a 12°C and 13°C minimum hinge on exact cloud-cover timing, dew-point depression, and urban heat-island effects, which can shift the observed low by 1°C at official stations. Historical September climatology places typical minima around 13°C, providing context for the tight market spread, while any late-evening convection or wind shift could alter the final recorded value before midnight.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateLowest temperature in Mexico City on September 21?
7°C or below 100%
13°C 100%
16°C 100%
17°C or higher 100%
7°C or below
100%
8°C
17%
9°C
17%
10°C
17%
11°C
40%
12°C
-
13°C
100%
14°C
22%
15°C
30%
16°C
100%
17°C or higher
100%
7°C or below 100%
13°C 100%
16°C 100%
17°C or higher 100%
7°C or below
100%
8°C
17%
9°C
17%
10°C
17%
11°C
40%
12°C
-
13°C
100%
14°C
22%
15°C
30%
16°C
100%
17°C or higher
100%
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=mmmx
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.
Binuksan ang Market: Sep 19, 2026, 8:29 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=mmmxResolver
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=mmmx
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=mmmxResolver
0x69c47De9D...Current forecasts from multiple models show Mexico City overnight lows stabilizing near 12–13°C on September 21, driven by the city’s high elevation of roughly 2,240 meters, light northerly winds, and moderate humidity that permit efficient radiative cooling after sunset under partly cloudy skies. Subtle differences between a 12°C and 13°C minimum hinge on exact cloud-cover timing, dew-point depression, and urban heat-island effects, which can shift the observed low by 1°C at official stations. Historical September climatology places typical minima around 13°C, providing context for the tight market spread, while any late-evening convection or wind shift could alter the final recorded value before midnight.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update
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