August 2021 Climate Summaries for the Northland

August 2021 continued the trend of previous months in the Northland, with warmer than average temperatures and below normal precipitation in most of northeast Minnesota and northwest Wisconsin.

Average monthly temperatures for August 2021 finished 3 to 4 degrees warmer than average, while precipitation totals for the month ranged from slightly below normal at International Falls, to well below normal at Duluth, Hibbing and Ashland, while Brainerd had above normal precipitation last month.

August 2021 was a top 10 warmest August on record at Brainerd, Duluth and International Falls.

A lack of thunderstorms in August 2021, with Hibbing recording the fewest thunderstorm days (2) while International Falls had the most (6).

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A little over 60% of the days in August 2021 were warmer than average (red) in Duluth, while only a little more than 30% of days were below average (blue)

Only 5 significant rainfall events (0.25″ or > amounts) in Duluth in August 2021, and we had a stretch of 3 weeks between significant rain events last month, not good, but that is the main reason why we have a drought as we just can’t seem to stay in a wet pattern for very long around here.

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August 2021 Climate Summary for Duluth, Minnesota

Average temperature: 68.6 degrees
Normal: 65.5 degrees
Departure: +3.1 degrees above normal

Warmest temperature: 89 on the 19th
Lowest temperature: 46 on the 14th

13 days had a high temperature of 80 or warmer (normal is 7 days)

Total precipitation: 2.44″
Normal: 3.73″
Departure: -1.29″ below normal

Greatest calendar day precipitation total: 0.79″ on the 28th

10 days at least 0.01″ of precipitation
6 days had at least 0.10″ of precipitation
2 days had at least 0.50″ of precipitation

5 days with thunder

Note: August 2021 was the 5th warmest August in station history. The warmest August on record was in 1930 with an average temperature of 70.2 degrees.
August 2021 Climate Summary for International Falls, Minnesota

Average temperature: 67.2 degrees
Departure: +4.4 degrees above normal

Total precipitation: 2.80″
Departure: -0.02″ below normal

6 days with thunder

Note: August 2021 was the 7th warmest August in station history. The warmest August on record was in 1983 with an average temperature of 68.5 degrees.
August 2021 Climate Summary for Hibbing, Minnesota

Average temperature: 64.9 degrees
Departure: +3.3 degrees above normal

Total precipitation: 1.62″
Departure: -1.47″ below normal

2 days with thunder
August 2021 Climate Summary for Ashland, Wisconsin

Average temperature: 68.2 degrees
Departure: +3.1 degrees above normal

Total precipitation: 1.38″
Departure: -2.06″ below normal

4 days with thunder
August 2021 Climate Summary for Brainerd, Minnesota

Average temperature: 71.3 degrees
Departure: +4.0 degrees above normal

Total precipitation: 3.92″
Departure: +0.86″ above normal

4 days with thunder

Note: August 2021 was the 4th warmest August in station history. The warmest August on record was in 1900 with an average temperature of 73.8 degrees.

Percent of normal rainfall in the Northland for August 2021

Brainerd, MN: 128% of normal
International Falls, MN: 99% of normal
Duluth, MN: 65% of normal
Hibbing, MN: 52% of normal
Ashland, WI: 40% of normal

Tim

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