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The following are astronomical summer summaries for La Crosse WI & Rochester MN...
...Astronomical Summer was Much Warmer and Wetter than Average in La Crosse WI...
During the astronomical summer of 2018 (June 21 through September 21), it was 4th warmest (tied with 1980 and 1998) and 21st wettest at La Crosse Regional Airport.
The average minimum temperature of 64.0°F was the warmest ever recorded for an astronomical summer. The previous record was 63.7°F in 1947. Temperature records date back to 1873.
More details are listed below...
Temperatures - Tied for 4th Warmest with 1980 and 1998
During astronomical summer, La Crosse Regional Airport had an average temperature of 73.9°F. This was 3.8°F warmer than the long-term average of 70.1 °F. This was tied for the 4th warmest with 1980 and 1998. It was the warmest since 1998. The table below lists the ten warmest astronomical summers in La Crosse WI...
Ten Warmest Astronomical Summers
in La Crosse WI
1873-2018
Average
Rank Temperature Year
---- ----------- ----
1 74.5°F 1936
2 74.4°F 1931
3 74.2°F 1955
4 73.9°F 2018
73.9°F 1998
73.9°F 1980
7 73.7°F 1988
8 73.5°F 1948
9 73.4°F 2005
73.4°F 1995
The average maximum temperature was 83.7°F. This was 3.3°F warmer than the long-term average of 80.4°F. The was tied for 14th warmest with 2003.
The average minimum temperature was 64.0°F. This was 4.1°F warmer than the long-term average of 59.9°F. This was the warmest ever recorded. The previous record was 63.7°F in 1947. Temperature records date back to 1873.
Other temperature tidbits this summer...
The temperature climbed to or exceeded 90°F on 17 days. Normally, there are 13 days in a summer.
Precipitation - 21st wettest
During the astronomical summer, La Crosse Regional Airport received 16.66 inches of rain. This was 4.80 inches wetter than the long-term
normal of 11.86 inches.
Other precipitation tidbits this summer...
The wettest calendar day occurred on August 27th when 3.04 inches of precipitation fell.
Measurable rain fell on 33 days (35.5%) and trace amounts fell on another 7 days (7.5%).
...Astronomical Summer was Warmer and Wetter than Average in Rochester Minnesota...
During the astronomical summer of 2018 (June 21 through September 21), it was 19th warmest (tied with 2013) and 16th wettest at Rochester International Airport.
More details are listed below...
Temperatures - Tied for 19th warmest with 2013
During astronomical summer, Rochester International Airport had an average temperature of 69.6°F. This was 1.5°F warmer than the long-term average of 68.1°F. The table below lists the 20 warmest astronomical summers in Rochester MN...
Twenty Warmest Astronomical Summers
in Rochester MN
1887-2018
Average
Rank Temperature Year
---- ----------- ----
1 72.9°F 1936
2 72.3°F 1955
72.3°F 1931
4 72.0°F 1947
5 71.3°F 1948
6 70.9°F 2012
7 70.8°F 1941
8 70.5°F 1988
70.5°F 1916
10 70.3°F 1983
11 70.2°F 1949
12 70.1°F 2005
70.1°F 1939
70.1°F 1937
15 70.0°F 1913
16 69.9°F 1908
17 69.7°F 2002
69.7°F 1919
19 69.6°F 2018
69.6°F 2013
The average maximum temperature was 79.4°F. This was 0.2 degrees warmer than the long-term average of 79.2°F.
The average minimum temperature was 59.8°F. This was 2.8°F warmer than the long-term average of 57.0°F. This was tied with 2010 for the 4th warmest. The only summers with a higher average minimum temperature were 1947 (60.4°F), 2016 (59.9°F), and 2012 (59.9°F). Temperature records date back to 1887.
Other temperature tidbits this summer...
The hottest temperature was 92°F on September 17th.
The coldest high temperature was 65°F on June 21st.
The coldest temperature was 43°F on September 21st.
The warmest low temperature was 70°F on June 29th and July 12th.
The temperature climbed to or exceeded 90°F on 4 days. Normally, there are 9 days per summer.
Precipitation - 16th wettest
During the astronomical summer, Rochester International Airport received 15.57 inches of rain. This was 3.84 inches wetter than the long-term normal of 11.73 inches. This made it the 16th wettest summer and the wettest since 2016 (21.17 inches - 5th wettest). Six of the 20 wettest summers have occurred since 1997. The table below lists the 20 wettest astronomical summers in Rochester MN...
Twenty Wettest Astronomical Summers
in Rochester MN
1887-2018
Rank Rainfall Year
---- -------- ----
1 24.13" 1978
2 22.68" 1938
3 22.37" 1986
4 21.74" 1942
5 21.17" 2016
6 19.99" 2007
7 19.28" 1990
8 18.83" 1981
9 18.19" 1913
10 17.58" 1959
11 17.32" 1999
12 17.07" 1951
13 16.08" 2010
14 16.07" 1983
15 15.85" 1952
16 15.57" 2018
17 15.29" 1993
18 15.03" 1997
19 14.65" 1947
20 14.45" 1994
Other precipitation tidbits this summer...
The wettest day occurred on September 4th when 3.32 inches of precipitation fell.
Measurable rain fell on 37 days (39.8%) and trace amounts fell on another 7 days (7.5%).
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