Historical Climate Data

Temperature Summary
Station: 474961 MADISON WSO AIRPORT, WI

1971-2000 NCDC Normals

 

Element JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
Max °F 25.2 30.8 42.8 56.6 69.4 78.3 82.1 79.4 71.4 59.6 43.3 30.2 55.8
Min °F 9.3 14.3 24.6 35.2 46.0 55.7 61.0 58.7 49.9 38.9 27.7 15.8 36.4
Mean °F 17.3 22.6 33.7 45.9 57.7 67.0 71.6 69.1 60.7 49.3 35.5 23.0 46.1
HDD
base 65		 1490 1203 978 576 261 63 12 33 183 504 892 1298 7493
CDD
base 65		 0 0 0 6 33 123 214 154 48 4 0 0 582

Temperature Extremes
Period of Record: 1947-2001

Month High
Mean°F		 Year Low
Mean°F		 Year 1-Day
Max°F		 Date 1-Day
Min°F		 Date
JAN 28.6 1990 3.7 1977 56 01-31-1989 -37 01-30-1951
FEB 33.5 1998 11.7 1979 64 02-25-2000 -29 02-03-1996
MAR 41.6 1973 18.4 1960 82 03-31-1981 -29 03-01-1962
APR 53.1 1955 39.5 1950 94 04-22-1980 0 04-07-1982
MAY 65.2 1977 50.2 1967 93 05-01-1952 19 05-01-1978
JUN 72.0 1995 59.5 1969 101 06-20-1988 31 06-10-1972
JUL 78.1 1955 67.1 1967 104 07-10-1976 36 07-06-1965
AUG 77.9 1947 62.0 1967 102 08-16-1988 35 08-29-1965
SEP 65.7 1948 56.7 1993 99 09-01-1953 25 09-29-1949
OCT 59.8 1947 43.4 1987 90 10-06-1963 13 10-30-1988
NOV 46.1 2001 27.1 1959 76 11-03-1964 -11 11-30-1947
DEC 31.3 1998 10.8 1983 64 12-05-2001 -25 12-19-1983
 
Annual 49.9 1998 43.0 1972 104 07-10-1976 -37 01-30-1951
Winter 28.2 1998 12.8 1977 64 12-05-1901 -37 01-30-1951
Spring 52.3 1977 40.5 1960 94 04-22-1980 -29 03-01-1962
Summer 74.6 1995 65.1 1967 104 07-10-1976 31 06-10-1972
Fall 52.8 1953 43.3 1976 99 09-01-1953 -11 11-30-1947

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 21.1 30.1 10.0
FEB 0.0 14.2 26.5 5.9
MAR 0.0 5.0 24.7 0.9
APR 0.0 0.5 12.7 0.0
MAY 0.3 0.0 2.5 0.0
JUN 2.9 0.0 0.0 0.0
JUL 5.3 0.0 0.0 0.0
AUG 2.8 0.0 0.0 0.0
SEP 0.6 0.0 1.0 0.0
OCT 0.1 0.0 9.5 0.0
NOV 0.0 4.6 21.4 0.2
DEC 0.0 15.8 28.8 4.9
 
Annual 12.0 61.2 157.1 21.9
Winter 0.0 51.1 85.5 20.7
Spring 0.3 5.5 39.9 1.0
Summer 11.0 0.0 0.0 0.0
Fall 0.6 4.6 31.8 0.2