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April Climate Summary
and May Climate Outlook

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For a larger view of the Duluth, Minnesota temperature graph provided by the Midwestern Regional Climate Center: Click Here

 

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For a larger view of the International Falls, Minnesota temperature graph provided by the Midwestern Regional Climate Center: Click Here

 

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For a larger view of the Brainerd, Minnesota temperature graph provided by the Midwestern Regional Climate Center: Click Here

 

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For a larger view of the Hibbing, Minnesota temperature graph provided by the Midwestern Regional Climate Center: Click Here

 

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For a larger view of the Ashland, Wisconsin temperature graph provided by the Midwestern Regional Climate Center: Click Here

 

May Climate Outlook

Temperature Outlook Precipitation Outlook

For Duluth, normal highs start in the mid to upper 50s and warm to the mid 60s at the end of the month. Normal lows for the month start in the mid 30s and warm to the mid 40s by the end of the month. Normal precipitation for May is 3.23 inches. Normal snowfall for May is 0.4 inches.

For International Falls, normal highs begin the month in the low 60s and warm to the upper 60s by the end of the month. Normal lows for the month start in the mid 30s and warm to the mid 40s at the end of the month. Normal precipitation for May 2.86 inches.

For Brainerd, normal highs begin in the mid 60s and warm to the low 70s by the end of the month. Normal lows begin in the low 40s and warm to the upper 40s by the end of the month. Normal precipitation for May is 3.37 inches.  

For Hibbing, normal highs range from the low 60s at the beginning of the month and warm to the upper 60s by the end of the month. Normal lows range from the low 30s at the beginning of the month and warm to the low 40s by the end of the month. Normal precipitation for May is 2.25 inches. 

For Ashland, normal highs begin in the low 60s and warm to the upper 60s by the end of the month. Normal lows begin in the mid 30s and warm to the low to mid 40s by the end of the month. Normal precipitation for May is 3.07 inches. 

For all locations the latest Climate Prediction Center Outlook indicates that odds are tilted toward above normal temperatures and slightly tilted toward above normal precipitation.

 

Duluth, MN

Normals for the Month of May
(The monthly climate normals are from a 30 year period defined by the Climate Prediction Center as 1981-2010)

  The Normal, Monthly Average Temperature (degrees F)

51.4

  The Normal, Monthly High Temperature (degrees F)

62.2

  The Normal, Monthly Low Temperature (degrees F)

40.6

 

 

  Normal Monthly Precipitation (inches)

3.23

  Normal Monthly Snowfall (inches)

0.4

 

 

  Normal number of days with Measurable Precipitation

12.3

  Normal number of days with snow depth of 1 inch or greater

0.1

 

 

  Normal Heating Degree Days

426

  Normal Cooling Degree Days

4

 

Records for the Month of May

  Warmest Month (Monthly Average Temperature)

57.4 in 1977

  Coldest  Month (Monthly Average Temperature)

38.8 in 1907

  Highest Observed Temperature (degrees F)

95 on the 30th in 1939

  Lowest Observed High Temperature (degrees F)

27 on the 3rd in 1954

  Lowest Observed Temperature (degrees F)

16 on the 3rd in 1907

  Highest Observed Low Temperature (degrees F)

42 on the 10th in 1927

 

 

  Greatest Monthly Precipitation (inches)

7.99 in 1879

  Least Monthly  Precipitation (inches)

0.15 in 1976

  Greatest Daily Precipitation (inches)

3.93 on the 23rd in 2010

 

 

  Greatest Monthly Snowfall (inches)

8.1 in 1954

  Least Monthly Snowfall (inches)

0.0

  Greatest Daily Snowfall (inches)

5.5 on the 10th in 1902

  Greatest Measured Snow Depth (inches)

9 on the 1st to 3rd in 1950

 

 

International Falls, MN

Normals for the Month of May
(The monthly climate normals are from a 30 year period defined by the Climate Prediction Center as 1981-2010)

  The Normal, Monthly Average Temperature (degrees F)

51.8

  The Normal, Monthly High Temperature (degrees F)

64.8

  The Normal, Monthly Low Temperature (degrees F)

38.7

 

 

  Normal Monthly Precipitation (inches)

2.86

  Normal Monthly Snowfall (inches)

0.2

 

 

  Normal number of days with Measurable Precipitation

12.4

  Normal number of days with snow depth of 1 inch or greater

4.5

 

 

  Normal Heating Degree Days

419

  Normal Cooling Degree Days

8

 

Records for the Month of May

  Warmest Month (Monthly Average Temperature)

60.9 in 1977

  Coldest  Month (Monthly Average Temperature)

43.0 in 1924

  Highest Observed Temperature (degrees F)

95 on the 21st in 1964

  Lowest Observed High Temperature (degrees F)

26 on the 2nd in 1967

  Lowest Observed Temperature (degrees F)

8 on the 17th in 1926

  Highest Observed Low Temperature (degrees F)

66 on the 31st in 1988 & on the 21st in 1992

 

 

  Greatest Monthly Precipitation (inches)

6.67 in 1985

  Least Monthly  Precipitation (inches)

0.07 in 1917

  Greatest Daily Precipitation (inches)

2.67 on the 23rd in 1991

 

 

  Greatest Monthly Snowfall (inches)

13.4 in 1954

  Least Monthly Snowfall (inches)

0 in multiple years

  Greatest Daily Snowfall (inches)

8.0 on 5th 1925

  Greatest Measured Snow Depth (inches)

12 on the 4th-5th in 1954

 

 

Brainerd, MN

Normals for the Month of May
(The monthly climate normals are from a 30 year period defined by the Climate Prediction Center as 1981-2010)

  The Normal, Monthly Average Temperature (degrees F)

56.0

  The Normal, Monthly High Temperature (degrees F)

67.6

  The Normal, Monthly Low Temperature (degrees F)

44.4

 

 

  Normal Monthly Precipitation (inches)

2.35

 

 

  Normal Heating Degree Days

299

  Normal Cooling Degree Days

20

 

Records for the Month of May

  Warmest Month (Monthly Average Temperature)

63.4 in 1977

  Coldest  Month (Monthly Average Temperature)

48.1 in 1927

  Highest Observed Temperature (degrees F)

101 on the 31st in 1934

  Lowest Observed High Temperature (degrees F)

33 on the 3rd in 1967

  Lowest Observed Temperature (degrees F)

16 on the 3rd and 4th in 1967

 Highest Observed Low Temperature (degrees F)

70 on the 28th in 1969

 

 

  Greatest Monthly Precipitation (inches)

9.40 in 1959

  Least Monthly  Precipitation (inches)

0.58 in 1952

  Greatest Daily Precipitation (inches)

4.03 on the 27th in 2012

 

 

Hibbing, MN

Normals for the Month of May
(The monthly climate normals are from a 30 year period defined by the Climate Prediction Center as 1981-2010)

  The Normal, Monthly Average Temperature (degrees F)

50.6

  The Normal, Monthly High Temperature (degrees F)

65.0

  The Normal, Monthly Low Temperature (degrees F)

36.3

 

 

  Normal Monthly Precipitation (inches)

2.55

 

 

  Normal Heating Degree Days

449

  Normal Cooling Degree Days

4

 

Records for the Month of May

  Warmest Month (Monthly Average Temperature)

59.9 in 1977

  Coldest  Month (Monthly Average Temperature)

45.1 in 2002

  Highest Observed Temperature (degrees F)

95 on the 30th in 1939

  Lowest Observed High Temperature (degrees F)

27 on the 3rd in 1954

  Lowest Observed Temperature (degrees F)

14 on the 3rd in 1967

 Highest Observed Low Temperature (degrees F)

67 on the 30th in 1986

 

 

  Greatest Monthly Precipitation (inches)

7.63 in 2014

  Least Monthly  Precipitation (inches)

0.29 in 1952

  Greatest Daily Precipitation (inches)

2.57 on the 31st in 2014

 

 

Ashland, WI

Normals for the Month of May
(The monthly climate normals are from a 30 year period defined by the Climate Prediction Center as 1981-2010)

  The Normal, Monthly Average Temperature (degrees F)

51.9

  The Normal, Monthly High Temperature (degrees F)

64.9

  The Normal, Monthly Low Temperature (degrees F)

38.8

 

 

  Normal Monthly Precipitation (inches)

3.07

 

 

  Normal Heating Degree Days

414

  Normal Cooling Degree Days

6

 

Records for the Month of May

  Warmest Month (Monthly Average Temperature)

58.5 in 1977

  Coldest  Month (Monthly Average Temperature)

42.8 in 1907

  Highest Observed Temperature (degrees F)

96 on the 30th in 1939

  Lowest Observed High Temperature (degrees F)

32 on the 3rd in 1954 and 2013

  Lowest Observed Temperature (degrees F)

16 on the 10th in 1966 and on the 1st in 1978

 Highest Observed Low Temperature (degrees F)

69 on the 30th in 1939

 

 

  Greatest Monthly Precipitation (inches)

8.06 in 1953 and 2013

  Least Monthly  Precipitation (inches)

0.57 in 1925

  Greatest Daily Precipitation (inches)

2.61 on the 21st in 1953