Official observations from Mexico's Servicio Meteorológico Nacional (SMN) and Benito Juárez International Airport confirm Mexico City's highest temperature on April 20 reached exactly 24°C, driving trader consensus to 100% implied probability for this outcome. The arrival of Cold Front 45 (Frente Frío 45) introduced cloudy skies, scattered showers, and gusty winds up to 50 km/h, suppressing daytime solar heating below SMN's forecasted 24-26°C range. This marked a sharp departure from early April's heat advisories nearing 30°C, with cooler air masses dominating central Mexico. While measurement protocols at the airport ensure reliability, a rare data revision by SMN could challenge resolution, though historical precedents show such adjustments minimal.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Mexico City on April 20?
Highest temperature in Mexico City on April 20?
24°C 100.0%
16°C or below <1%
17°C <1%
18°C <1%
$57,611 Vol.
$57,611 Vol.
Apr 20, 2026
16°C or below
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
Yes
25°C
No
26°C or higher
No
24°C 100.0%
16°C or below <1%
17°C <1%
18°C <1%
$57,611 Vol.
$57,611 Vol.
Apr 20, 2026
16°C or below
$4,402 Vol.
No
17°C
$2,635 Vol.
No
18°C
$3,168 Vol.
No
19°C
$2,808 Vol.
No
20°C
$1,470 Vol.
No
21°C
$3,124 Vol.
No
22°C
$3,421 Vol.
No
23°C
$5,716 Vol.
No
24°C
$14,151 Vol.
Yes
25°C
$7,690 Vol.
No
26°C or higher
$9,027 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded at the Benito Juárez International Airport Station in degrees Celsius on 20 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 Benito Juárez International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/mx/mexico-city/MMMX.
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 Celsius (eg, 9°C). 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 Mexico's Servicio Meteorológico Nacional (SMN) and Benito Juárez International Airport confirm Mexico City's highest temperature on April 20 reached exactly 24°C, driving trader consensus to 100% implied probability for this outcome. The arrival of Cold Front 45 (Frente Frío 45) introduced cloudy skies, scattered showers, and gusty winds up to 50 km/h, suppressing daytime solar heating below SMN's forecasted 24-26°C range. This marked a sharp departure from early April's heat advisories nearing 30°C, with cooler air masses dominating central Mexico. While measurement protocols at the airport ensure reliability, a rare data revision by SMN could challenge resolution, though historical precedents show such adjustments minimal.
This market will resolve to the temperature range that contains the highest temperature recorded at the Benito Juárez International Airport Station in degrees Celsius on 20 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 Benito Juárez International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/mx/mexico-city/MMMX.
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 Celsius (eg, 9°C). 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 Benito Juárez International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/mx/mexico-city/MMMX.
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 Celsius (eg, 9°C). 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 18, 2026, 12:18 AM ET
Volume
$57,611End Date
Apr 20, 2026Market Opened
Apr 18, 2026, 12:18 AM ETResolution Source
https://www.wunderground.com/history/daily/mx/mexico-city/MMMXResolver
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 Benito Juárez International Airport Station in degrees Celsius on 20 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 Benito Juárez International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/mx/mexico-city/MMMX.
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 Celsius (eg, 9°C). 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 Mexico's Servicio Meteorológico Nacional (SMN) and Benito Juárez International Airport confirm Mexico City's highest temperature on April 20 reached exactly 24°C, driving trader consensus to 100% implied probability for this outcome. The arrival of Cold Front 45 (Frente Frío 45) introduced cloudy skies, scattered showers, and gusty winds up to 50 km/h, suppressing daytime solar heating below SMN's forecasted 24-26°C range. This marked a sharp departure from early April's heat advisories nearing 30°C, with cooler air masses dominating central Mexico. While measurement protocols at the airport ensure reliability, a rare data revision by SMN could challenge resolution, though historical precedents show such adjustments minimal.
This market will resolve to the temperature range that contains the highest temperature recorded at the Benito Juárez International Airport Station in degrees Celsius on 20 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 Benito Juárez International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/mx/mexico-city/MMMX.
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 Celsius (eg, 9°C). 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 Benito Juárez International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/mx/mexico-city/MMMX.
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 Celsius (eg, 9°C). 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
$57,611End Date
Apr 20, 2026Market Opened
Apr 18, 2026, 12:18 AM ETResolution Source
https://www.wunderground.com/history/daily/mx/mexico-city/MMMXResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from Mexico's Servicio Meteorológico Nacional (SMN) and Benito Juárez International Airport confirm Mexico City's highest temperature on April 20 reached exactly 24°C, driving trader consensus to 100% implied probability for this outcome. The arrival of Cold Front 45 (Frente Frío 45) introduced cloudy skies, scattered showers, and gusty winds up to 50 km/h, suppressing daytime solar heating below SMN's forecasted 24-26°C range. This marked a sharp departure from early April's heat advisories nearing 30°C, with cooler air masses dominating central Mexico. While measurement protocols at the airport ensure reliability, a rare data revision by SMN could challenge resolution, though historical precedents show such adjustments minimal.
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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