August 2019 Monthly Climate Summaries & September Outlook

August 2019 Climate Summary
and September 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

September Climate Outlook

Temperature Outlook

Precipitation Outlook

For Duluth, normal highs begin in the low 70s and cool to the upper 50s by the end of the month. Normal lows begin in the low 50s and cool to the low 40s by the end of the month. Normal precipitation for September is 4.11 inches. Normal snowfall for September is 0.1 inches.

For International Falls, normal highs begin in the low 70s and cool to the upper 50s by the end of the month. Normal lows begin in the upper 40s and cool to the mid 30s by the end of the month. Normal precipitation for September is 2.99 inches. Normal snowfall for September is 0.1 inches.

For Brainerd, normal highs begin in the mid 70s and cool to the low to mid 60s by the end of the month. Normal lows begin in the lower 50s and cool to the lower 40s by the end of the month. Normal precipitation for September is 3.18 inches.

For Hibbing, normal highs begin in the lower 70s and cool to the upper 50s by the end of the month. Normal lows begin in the mid 40s and cool to the mid 30s by the end of the month. Normal precipitation for September is 3.07 inches.

For Ashland, normal highs begin in the mid 70s and cool to the low 60s by the end of the month. Normal lows begin in the upper 40s and cool to the lower 40s by the end of the month. Normal precipitation for September is 3.85 inches.

The latest Climate Prediction Center (CPC) outlook for September indicates that odds are tilted toward below normal temperatures and above normal precipitation.

Duluth, MN

Normals for the Month of September (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)	55.6
The Normal, Monthly High Temperature (degrees F)	65.0
The Normal, Monthly Low Temperature (degrees F)	46.1

Normal Monthly Precipitation (inches)	4.11
Normal Monthly Snowfall (inches)	0.1

Normal number of days with Measurable Precipitation	12.3
Normal number of days with snow depth of 1 inch or greater	0.0

Normal Heating Degree Days	298
Normal Cooling Degree Days	14

Records for the Month of September
Warmest Month (Monthly Average Temperature)	62.6 in 1897
Coldest Month (Monthly Average Temperature)	47.8 in 1974
Highest Observed Temperature (degrees F)	95 on the 7^th in 1976
Lowest Observed High Temperature (degrees F)	38 on the 30^th in 1985
Lowest Observed Temperature (degrees F)	23 on the 20^th in 1962, on the 26^th 1965 & on the 22^nd 1974
Highest Observed Low Temperature (degrees F)	72 on the 11^th in 1931

Greatest Monthly Precipitation (inches)	11.52 in 1881
Least Monthly Precipitation (inches)	0.19 in 1952
Greatest Daily Precipitation (inches)	3.97 on the 6^th in 1876

Greatest Monthly Snowfall (inches)	2.4 in 1991
Least Monthly Snowfall (inches)	0.0
Greatest Daily Snowfall (inches)	2.4 on the 18^th 1991

International Falls, MN

Normals for the Month of September (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)	53.6
The Normal, Monthly High Temperature (degrees F)	65.4
The Normal, Monthly Low Temperature (degrees F)	41.8

Normal Monthly Precipitation (inches)	2.99
Normal Monthly Snowfall (inches)	0.10

Normal number of days with Measurable Precipitation	11.9
Normal number of days with snow depth of 1 inch or greater	0.0

Normal Heating Degree Days	353
Normal Cooling Degree Days	11

Records for the Month of September
Warmest Month (Monthly Average Temperature)	62.7 in 1920
Coldest Month (Monthly Average Temperature)	46.4 in 1965
Highest Observed Temperature (degrees F)	96 on the 7^th in 1906
Lowest Observed High Temperature (degrees F)	35 on the 25^th & 26^th in 1926
Lowest Observed Temperature (degrees F)	19 on the 15^th in 2011
Highest Observed Low Temperature (degrees F)	73 on the 8^th in 2002

Greatest Monthly Precipitation (inches)	7.36 in 1961
Least Monthly Precipitation (inches)	0.20 in 1897
Greatest Daily Precipitation (inches)	3.34 on the 1^st in 1973

Greatest Monthly Snowfall (inches)	2.0 in 1912
Least Monthly Snowfall (inches)	0 in Multiple Years
Greatest Daily Snowfall (inches)	2.0 on the 26^th in 1912
Greatest Measured Snow Depth (inches)	0.0

Brainerd, MN

Normals for the Month of September (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)	58.1
The Normal, Monthly High Temperature (degrees F)	69.1
The Normal, Monthly Low Temperature (degrees F)	47.2

Normal Monthly Precipitation (inches)	3.18

Normal Heating Degree Days	235
Normal Cooling Degree Days	30

Records for the Month of September
Warmest Month (Monthly Average Temperature)	63.6 in 1931 and 2009
Coldest Month (Monthly Average Temperature)	49.2 in 1918
Highest Observed Temperature (degrees F)	103 on the 10^th in 1931
Lowest Observed High Temperature (degrees F)	36 on the 29^th in 1899
Lowest Observed Temperature (degrees F)	18 on the 22^nd in 1974
Highest Observed Low Temperature (degrees F)	71 in multiple years

Greatest Monthly Precipitation (inches)	8.04 in 1986
Least Monthly Precipitation (inches)	0.26 in 1952
Greatest Daily Precipitation (inches)	3.62 on the 5^th in 2004

Hibbing, MN

Normals for the Month of September (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)	53.1
The Normal, Monthly High Temperature (degrees F)	65.9
The Normal, Monthly Low Temperature (degrees F)	40.2

Normal Monthly Precipitation (inches)	3.07

Normal Heating Degree Days	367
Normal Cooling Degree Days	9

Records for the Month of September
Warmest Month (Monthly Average Temperature)	60.6 in 1948
Coldest Month (Monthly Average Temperature)	46.1 in 1965
Highest Observed Temperature (degrees F)	94 on the 7^th in 1976
Lowest Observed High Temperature (degrees F)	34 on the 24^th in 1942
Lowest Observed Temperature (degrees F)	20 in multiple years
Highest Observed Low Temperature (degrees F)	68 in multiple years

Greatest Monthly Precipitation (inches)	8.67 in 1947
Least Monthly Precipitation (inches)	0.50 in 1952
Greatest Daily Precipitation (inches)	5.51 on the 10^th in 1947

Ashland, WI

Normals for the Month of September (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)	56.7
The Normal, Monthly High Temperature (degrees F)	68.4
The Normal, Monthly Low Temperature (degrees F)	45.0

Normal Monthly Precipitation (inches)	3.85

Normal Heating Degree Days	270
Normal Cooling Degree Days	21

Records for the Month of September
Warmest Month (Monthly Average Temperature)	61.8 in 2015
Coldest Month (Monthly Average Temperature)	50.0 in 1918
Highest Observed Temperature (degrees F)	100 on the 7^th in 1976
Lowest Observed High Temperature (degrees F)	43 on the 23^rd in 1913 and on the 19^th in 1918
Lowest Observed Temperature (degrees F)	12 on the 28^th in 1893
Highest Observed Low Temperature (degrees F)	75 on the 8^th in 1906

Greatest Monthly Precipitation (inches)	10.00 in 1985
Least Monthly Precipitation (inches)	0.09 in 1952
Greatest Daily Precipitation (inches)	4.70 on the 3^rd in 1985