May 21, 1940
High
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Low
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Average
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Precipitation
0.0 in
Historical Records for May 21
Warmest on Record
90.0°Fin 2000
Coldest on Record
46.9°Fin 1971
Based on 103 years of historical data
Hourly Observations
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Data Sources
Data from NOAA Global Historical Climatology Network (GHCNH) and Open-Meteo Historical Weather API