Historical Climate Data

Precipitation Summary
Station: 478723 UNION GROVE, WI

1971-2000 NCDC Normals

 

Element JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
Precip (in) 1.37 1.16 2.02 3.63 3.24 4.01 3.64 4.49 3.46 2.43 2.54 1.78 33.77

Precipitation Extremes
Period of Record: 1941-2001

Month High (in) Year Low (in) Year 1-Day
Max (in)		 Date
JAN 3.74 1960 0.07 1981 1.73 01-12-1960
FEB 3.31 2001 0.00 1947 2.01 02-22-1974
MAR 5.83 1976 0.19 1996 1.72 03-27-1976
APR 7.50 1993 0.85 1946 3.00 04-09-1973
MAY 9.46 2000 0.37 1992 2.40 05-21-1996
JUN 9.30 1954 0.74 1995 3.89 06-25-1987
JUL 8.81 1978 0.98 1946 4.00 07-18-1964
AUG 11.82 1978 0.54 1970 5.37 08-18-1978
SEP 9.40 1970 0.10 1979 4.33 09-01-1989
OCT 6.36 1991 0.03 1952 2.83 10-05-1991
NOV 6.58 1985 0.36 1976 2.15 11-09-1998
DEC 4.46 1982 0.28 1962 2.60 12-03-1982
 
Annual 42.37 1978 18.51 1946 5.37 08-18-1978
Winter 9.23 1960 0.97 1963 2.60 12-03-1982
Spring 14.63 1973 3.60 1971 3.00 04-09-1973
Summer 26.54 1978 4.36 1948 5.37 08-18-1978
Fall 15.32 1961 2.05 1956 4.33 09-01-1989

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 7.8 4.4 0.6 0.1
FEB 6.2 3.3 0.5 0.1
MAR 7.8 4.9 1.3 0.2
APR 10.6 6.7 2.2 1.0
MAY 10.1 6.8 2.2 0.6
JUN 10.1 7.1 2.7 1.1
JUL 9.1 6.4 2.5 1.0
AUG 9.1 7.1 3.1 1.4
SEP 8.4 6.1 2.1 0.9
OCT 8.5 5.6 1.4 0.4
NOV 8.3 5.8 1.8 0.4
DEC 8.3 4.6 1.0 0.2
 
Annual 104.2 68.9 21.5 7.5
Winter 22.4 12.3 2.1 0.5
Spring 28.5 18.5 5.7 1.8
Summer 28.2 20.6 8.4 3.5
Fall 25.2 17.5 5.4 1.7