August 2020 Climate Summaries for the Northland

August 2020 was warmer than normal in northeast Minnesota and northwest Wisconsin as monthly average temperatures ended up around 1 to nearly 3 degrees above normal. Precipitation totals for August were generally above normal, with precipitation surpluses for the month ranging from around a half inch to nearly three inches, the exception to this like it’s been most of the summer was in Duluth, where rainfall for August was nearly an inch below normal. International Falls, Brainerd and Hibbing led the way for most number of days with thunder in August at 8 days.

August 2020 Climate Summaries

Duluth, Minnesota

Average Temperature: 67.0 degrees
Normal: 64.3 degrees
Departure: +2.7 degrees above normal

Highest temperature: 86 degrees on the 26th and 8th
Lowest temperature: 48 degrees on the 31st and 30th

5 days had a high temperature of at least 80 degrees; Normal for August is 7 days.

Total precipitation: 2.72″
Normal: 3.70″
Departure: -0.98″ below normal

Greatest calendar day precipitation total: 0.75″ on the 31st

Number of days with at least 0.01″ of precipitation: 12
Number of days with at least 0.10″ of precipitation: 5
Number of days with at least 0.50″ of precipitation: 3

6 days with thunder

International Falls, Minnesota

Average Temperature: 64.5 degrees
Departure: +1.2 degrees above normal

Total precipitation: 4.80″
Departure: +1.99″ above normal

8 days with thunder

Brainerd, Minnesota

Average temperature: 69.5 degrees
Departure: +1.5 degrees above normal

Total precipitation: 3.69″
Departure: +0.62″ above normal

8 days with thunder

Hibbing, Minnesota

Average temperature: 63.1 degrees
Departure: +0.7 degrees above normal

Total precipitation: 5.90″
Departure: +2.76″ above normal

8 days with thunder

Ashland, Wisconsin

Average temperature: 66.3 degrees
Departure: +1.5 degrees above normal

Total precipitation: 4.07″
Departure: +0.52″ above normal

6 days with thunder

Here’s a look at daily average temperature departures for Duluth, Minnesota for August 2020.

Note: 67% of days in August were above normal (red) while 23% of days were below normal (blue) The black represents days which had a normal temperature.

Source: https://mesonet.agron.iastate.edu/

Top 3 calendar day precip events for August 2020 at Duluth, Minnesota (Airport location)

1) 0.75″ on the 31st

2) 0.71″ on the 7th

3) 0.57″ on the 9th

August 2020 Daily Precipitation Totals for Duluth, Minnesota.

Source: https://mrcc.illinois.edu/

Rainfall totals in August were some 175-200% of normal for cities such as Bigfork and Grand Rapids, to around 150% of normal in Brainerd and International Falls. The real dry areas in August were over the Arrowhead of Minnesota, and for locations south of Hayward where rainfall totals were just 50-75% of normal.

Thanks for reading!

Tim

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