Historical Climate Data

Precipitation Summary
Station: 477997 SPARTA, WI

1971-2000 NCDC Normals

 

Element JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
Precip (in) 0.81 0.80 1.78 3.17 4.04 4.15 4.31 4.47 3.84 2.26 2.24 1.13 33.00

Precipitation Extremes
Period of Record: 1917-2001

Month High (in) Year Low (in) Year 1-Day
Max (in)		 Date
JAN 2.94 1969 0.00 1987 1.23 01-25-1967
FEB 2.80 1971 0.00 1958 1.50 02-19-1984
MAR 4.19 1977 0.00 1999 1.86 03-23-1966
APR 6.99 1994 0.59 1946 3.80 04-25-1994
MAY 7.14 1945 0.96 1939 3.16 05-18-2000
JUN 10.42 1998 1.39 1956 3.66 06-28-1942
JUL 9.48 1978 0.04 1937 4.55 07-01-1978
AUG 12.43 1980 0.26 1969 3.45 08-23-1973
SEP 11.56 1965 0.33 1979 5.42 09-14-1994
OCT 5.23 1954 0.05 1952 2.35 10-03-1954
NOV 4.84 1982 0.03 1976 2.13 11-01-1984
DEC 2.98 1968 0.00 1989 1.60 12-14-1975
 
Annual 44.89 1965 16.04 1939 5.42 09-14-1994
Winter 6.05 1971 0.76 1964 1.60 12-14-1975
Spring 16.85 1973 3.35 1939 3.80 04-25-1994
Summer 19.42 1998 4.76 1976 4.55 07-01-1978
Fall 16.93 1965 1.15 1976 5.42 09-14-1994

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 5.5 2.6 0.2 0.0
FEB 4.6 2.2 0.5 0.0
MAR 6.9 4.6 1.2 0.3
APR 10.9 6.6 2.0 0.4
MAY 11.4 7.4 2.8 1.1
JUN 10.9 7.8 2.6 1.3
JUL 10.3 7.7 3.1 1.0
AUG 10.8 7.4 3.0 1.3
SEP 9.6 6.4 2.4 0.9
OCT 9.0 5.1 1.6 0.3
NOV 7.9 4.8 1.6 0.6
DEC 6.2 3.1 0.5 0.2
 
Annual 105.2 67.0 22.2 7.8
Winter 16.2 7.9 1.2 0.3
Spring 29.1 18.7 6.0 1.9
Summer 32.0 22.8 8.8 3.6
Fall 26.4 16.1 5.6 1.7