Thursday, September 1, 2016

Summer 2016 climate summaries: 10th warmest on record at Duluth, Minnesota; Over 500 severe weather reports in MN, 300+ in WI; 20+ inches of rain in parts of central-southern MN

/Issued 1:52 PM CDT, Thursday, September 1, 2016/

Two major flood events during the summer of 2016.


































Summer 2016 (June-August) temperature departure map.  Source, Midwest Regional Climate Center.




















Summer 2016 (June-August) total precipitation map.  Source, Midwest Regional Climate Center.





















Precipitation departure map from June 1 to August 31, 2016.  Source, Midwest Regional Climate Center.





















Meteorological summer 2016 climate stats

Duluth, Minnesota

Average temperature:  65.3 degrees
Departure:  +1.9 degrees above normal

Note:  This was the 10th warmest summer on record.

Total precipitation:  13.81"
Departure:  +2.03" above normal

International Falls, Minnesota

Average temperature:  63.1 degrees
Departure:  0.0 degrees or normal

Total precipitation:  12.76"
Departure:  +2.33" above normal

Note:  This was the 18th wettest summer on record.

Summer (June-August) 2016 precipitation and ranking 
Source:  MNDNR

Redwood Falls:  23.34"
Departure:  +11.70" above normal
Rank:  2nd wettest
Period of record:  1980-2016*

Twin Cities:  17.40"
Departure:  +4.93" above normal
Rank:  8th wettest
Period of record:  1872-2016

St. Cloud:  18.47"
Departure:  +7.33" above normal
Rank:  5th wettest
Period of record:  1893-2016

Rochester:  16.58"
Departure:  +2.97" above normal
Rank:  14th wettest
Period of record:  1909-2016

La Crosse:  18.24"
Departure:  +5.49" above normal
Rank:  19th wettest
Period of record:  1872-2016

Duluth:  13.81"
Departure:  +2.16" above normal
Rank:  35th wettest
Period of record:  1872-2016

Grand Forks:  12.13"
Departure:  +2.71" above normal
Rank:  19th wettest
Period of record:  1893-2016

Fargo:  9.99"
Departure:  +0.83" above normal
Rank:  54th wettest
Period of record:  1881-2016

Sioux Falls:  6.36"
Departure:  -3.60" below normal
Rank:  16th driest
Period of record:  1893-2016

A few other summer 2016 rainfall totals and their departure from normal

Aitkin:  23.29" (+11.60" above normal)
Brainerd:  20.69" (+10.18" above normal)

Severe weather stats for the summer of 2016 (June-August)
Source:  Storm Prediction Center

Note:  Data is preliminary and subject to revision

Minnesota:

Total number of severe weather reports:  564

Tornadoes:  35 (Average is 31)
Hail:  156 (1.00 inch diameter or larger)
Wind:  373 (60 mph or stronger)

Wisconsin:

Total number of severe weather reports:  313

Tornadoes:  10 (Average is 16)
Hail:  29 (1.00 inch diameter or larger)
Wind:  274 (60 mph or stronger)

August 2016 climate summary for Duluth, Minnesota (Airport location)

Average temperature:  67.5 degrees
Normal:  64.3 degrees
Departure:  +3.2 degrees above normal

Warmest high temperature:  85 degrees on the 23rd
Warmest low temperature:  66 degrees on the 23rd

Coldest high temperature:  64 degrees on the 27th
Coldest low temperature:  50 degrees on the 21st

27 days with a high temperature of at least 70 F (Average is 23 days)
12 days with a high temperature of at least 80 F (Average is 7 days)

4 days with a high temperature below 70 F

Total precipitation:  4.96"
Normal:  3.70"
Departure:  +1.26" above normal

Heaviest daily precipitation total:  1.72" on the 29th

Number of days with at least 0.01" of precipitation:  12
Number of days with at least 0.10" of precipitation:  8
Number of days with at least 0.50" of precipitation:  3
Number of days with at least 1.00" of precipitation:  2

Notes:

5 thunderstorm days
4th consecutive month with an above average monthly temperature (May-Aug)

August 2016 climate summaries

International Falls:

Average temperature:  63.9 degrees
Departure:  +0.6 degrees above normal

Total precipitation:  3.41"
Departure:  +0.60" above normal

***10 thunderstorm days***

Twin Cities:

Average temperature:  73.4 degrees
Departure:  +2.2 degrees above normal

Total precipitation:  7.82" (6th wettest August on record)
Departure:  +3.52" above normal

***9 thunderstorm days***

St. Cloud:

Average temperature:  69.3 degrees
Departure:  +1.5 degrees above normal

Total precipitation:  8.36" (2nd wettest August on record)
Departure:  +4.57" above normal

***10 thunderstorm days***

Eau Claire, WI

Average temperature:  70.9 degrees
Departure:  +1.6 degrees above normal

Total precipitation:  4.84"
Departure:  +0.37" above normal

***7 thunderstorm days***

Marquette, MI

Average temperature:  65.9 degrees
Departure:  +2.2 degrees above normal

Total precipitation:  4.53"
Departure:  +1.48" above normal

***3 thunderstorm days***

Duluth, MN

Average temperature:  67.5 degrees
Departure:  +3.2 degrees above normal

Total precipitation:  4.96"
Departure:  +1.26" above normal

***5 thunderstorm days***

August 2016 temperature departure map.  Source, Midwest Regional Climate Center.

Above average to slightly above average temperatures throughout the Northland.




















August 2016 precipitation departure map.  Source, Midwest Regional Climate Center.

Above average precipitation totals in most of the Northland.





















Tim