Historical Climate Data

Temperature Summary
Station: 478027 SPOONER EXPERMNT FARM, WI

1971-2000 NCDC Normals

 

Element JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
Max °F 21.8 29.5 41.0 57.2 70.7 78.0 81.6 79.3 70.1 58.3 39.4 25.5 54.4
Min °F 0.0 6.4 18.8 31.5 43.4 52.2 57.2 55.1 46.7 36.0 22.7 7.2 31.4
Mean °F 10.9 18.0 29.9 44.4 57.1 65.1 69.4 67.2 58.4 47.2 31.1 16.4 42.9
HDD
base 65		 1678 1317 1088 621 286 83 27 53 218 555 1018 1508 8452
CDD
base 65		 0 0 0 1 38 85 164 121 20 0 0 0 429

Temperature Extremes
Period of Record: 1896-2001

Month High
Mean°F		 Year Low
Mean°F		 Year 1-Day
Max°F		 Date 1-Day
Min°F		 Date
JAN 23.4 1990 -7.3 1912 57 01-25-1973 -45 01-23-1935
FEB 31.2 1998 -2.1 1936 61 02-29-2000 -46 02-16-1936
MAR 41.2 1910 15.3 1899 81 03-28-1946 -38 03-01-1962
APR 52.9 1915 34.0 1950 90 04-29-1952 -6 04-01-1924
MAY 64.7 1977 44.6 1907 104 05-31-1934 13 05-04-1907
JUN 73.6 1933 57.8 1969 100 06-26-1900 22 06-01-1897
JUL 77.2 1936 63.1 1992 110 07-11-1936 35 07-25-1899
AUG 75.1 1947 61.6 1915 104 08-04-1947 29 08-28-1934
SEP 65.0 1897 51.2 1965 99 09-02-1898 18 09-25-1947
OCT 57.0 1947 35.8 1925 88 10-01-1897 2 10-25-1933
NOV 44.1 2001 21.0 1911 74 11-03-1978 -26 11-24-1898
DEC 28.2 1931 3.6 1983 60 12-02-1998 -44 12-19-1983
 
Annual 47.8 1931 37.0 1905 110 07-11-1936 -46 02-16-1936
Winter 24.8 1998 5.6 1917 61 02-29-1900 -46 02-16-1936
Spring 50.3 1977 35.6 1907 104 05-31-1934 -38 03-01-1962
Summer 71.4 1988 61.6 1915 110 07-11-1936 22 06-01-1997
Fall 52.0 1931 39.7 1911 99 09-02-1998 -26 11-24-1998

Temperature Threshold Climatology
Derived from 1971-2000 Averages


*Annual/seasonal totals may differ from the sum of the monthly totals due to rounding.

Month # Days
Max ≥ 90°F		 # Days
Max ≤ 32°F		 # Days
Min ≤ 32°F		 # Days
Min ≤ 0°F
JAN 0.0 25.4 30.9 15.2
FEB 0.0 16.5 27.5 10.0
MAR 0.0 6.9 27.0 3.6
APR 0.0 0.6 16.5 0.1
MAY 0.0 0.0 4.9 0.0
JUN 1.1 0.0 0.3 0.0
JUL 2.6 0.0 0.0 0.0
AUG 1.1 0.0 0.0 0.0
SEP 0.1 0.0 2.3 0.0
OCT 0.0 0.1 12.0 0.0
NOV 0.0 8.9 25.2 1.2
DEC 0.0 22.6 30.7 10.0
 
Annual 5.0 80.9 177.0 40.3
Winter 0.0 64.4 89.0 35.2
Spring 0.1 7.5 48.4 3.7
Summer 4.8 0.0 0.3 0.0
Fall 0.1 8.8 39.2 1.2