May 2021 was warmer and drier than average in northeast Minnesota and northwest Wisconsin with average temperatures for the month finishing about 1 degree above average. Precipitation was below normal last month, with Brainerd recording their driest May on record, while Hibbing and International Falls recorded a top 10 driest May on record.
| May 2021 Climate Summary for Duluth, Minnesota Average temperature: 53.5 degrees Normal: 52.0 degrees Departure: +1.5 degrees above normal Highest temperature: 83 degrees on the 25th and 1st Lowest temperature: 26 degrees on the 11th 11 days had a high temperature of at least 70 degrees (normal in May is 6 days) 4 days had a high temperature of at least 80 degrees (normal in May is 2 days) 7 days had a low temperature of 32 degrees or colder (normal in May is 4 days) Total precipitation: 1.88″ Normal: 3.37″ Departure: -1.49″ below normal Number of days with at least 0.01″ of precipitation: 7 Number of days with at least 0.10″ of precipitation: 3 Number of days with at least 0.50″ of precipitation: 1 Greatest calendar day precipitation total: 0.82″ on the 23rd Total snowfall: Trace Normal: 0.8″ Departure: -0.8″ below normal 3 days with thunder |
| May 2021 Climate Summary for International Falls, Minnesota Average temperature: 52.7 degrees Departure: +1.6 degrees above normal Total precipitation: 0.62″ Departure: -2.44″ below normal 1 day with thunder Note: May 2021 was the 6th driest May in station history. |
| May 2021 Climate Summary for Brainerd, Minnesota Average temperature: 56.2 degrees Departure: +0.9 degrees above normal Total precipitation: 0.27″ Departure: -3.00″ below normal 1 day with thunder Note: May 2021 was the driest May on record in station history. The previous driest May on record at Brainerd was in 1928 with 0.29″ of precipitation. |
| May 2021 Climate Summary for Hibbing, Minnesota Average temperature: 50.8 degrees Departure: +1.3 degrees above normal Total precipitation: 0.92″ Departure: -1.84″ below normal 2 days with thunder Note: May 2021 was the 8th driest May on record in station history. |
| May 2021 Climate Summary for Ashland, Wisconsin Average temperature: 52.1 degrees Departure: +0.6 degrees above normal Total precipitation: 1.97″ Departure: -1.48″ below normal 3 days with thunder |
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Total precipitation and percent of Mean for May 2021
Ashland: 57% of normal
Duluth: 56% of normal
Hibbing: 33% of normal
International Falls: 20% of normal
Brainerd: 8% of normal
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