Historical Climate Data

Precipitation 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
Precip (in) 1.25 1.28 2.28 3.35 3.25 4.05 3.93 4.33 3.08 2.18 2.31 1.66 32.95

Precipitation Extremes
Period of Record: 1943-2001

Month High (in) Year Low (in) Year 1-Day
Max (in)		 Date
JAN 2.53 1996 0.14 1981 1.15 01-26-1974
FEB 2.77 1953 0.06 1995 1.61 02-27-1948
MAR 5.46 1998 0.28 1978 2.78 03-30-1998
APR 7.11 1973 0.96 1946 1.91 04-28-1975
MAY 9.63 2000 0.64 1981 3.64 05-23-1966
JUN 9.95 1978 0.81 1973 4.51 06-17-1996
JUL 10.93 1950 1.38 1946 3.89 07-03-1975
AUG 9.49 1980 0.70 1948 3.40 08-02-2001
SEP 9.22 1965 0.11 1979 2.70 09-12-1961
OCT 5.63 1984 0.06 1952 2.78 10-18-1984
NOV 5.13 1985 0.11 1976 2.30 11-01-1971
DEC 4.09 1987 0.25 1960 2.19 12-03-1990
 
Annual 43.34 1993 21.08 1976 4.51 06-17-1996
Winter 6.44 1983 1.45 1961 2.19 12-03-1990
Spring 17.42 1973 4.36 1994 3.64 05-23-1966
Summer 21.58 1993 4.83 1976 4.51 06-17-1996
Fall 15.61 1961 2.10 1976 2.78 10-18-1984

Precipitation Threshold Climatology
Derived from 1971-2000 Averages


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

Month # Days
Total ≥ 0.01"		 # Days
Total ≥ 0.10"		 # Days
Total ≥ 0.50"		 # Days
Total ≥ 1.00"
JAN 11.1 3.6 0.5 0.1
FEB 8.7 3.6 0.4 0.2
MAR 10.6 5.2 1.4 0.2
APR 11.8 6.8 2.4 0.7
MAY 11.5 6.6 2.0 0.8
JUN 10.7 6.6 2.4 1.0
JUL 10.5 6.3 2.5 1.1
AUG 9.9 6.9 3.1 1.2
SEP 9.6 5.6 2.2 0.8
OCT 9.3 5.0 1.2 0.3
NOV 10.9 5.2 1.3 0.5
DEC 10.3 4.2 0.7 0.2
 
Annual 124.9 65.7 20.1 7.0
Winter 30.1 11.4 1.6 0.5
Spring 33.9 18.6 5.8 1.7
Summer 31.1 19.8 8.1 3.3
Fall 29.8 15.8 4.6 1.5