Historical Climate Data

Precipitation Summary
Station: 478349 SUPERIOR, WI

1971-2000 NCDC Normals

 

Element JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
Precip (in) 1.01 0.78 1.88 2.14 3.09 3.98 4.24 4.11 4.21 2.38 2.04 0.92 30.78

Precipitation Extremes
Period of Record: 1909-2001

Month High (in) Year Low (in) Year 1-Day
Max (in)		 Date
JAN 3.14 1969 0.06 1963 1.08 01-02-1941
FEB 2.71 1922 0.05 1968 1.34 02-24-1977
MAR 8.38 1977 0.08 1967 2.85 03-12-1977
APR 7.71 2001 0.25 1987 3.60 04-15-1961
MAY 7.51 1913 0.29 1976 3.03 05-29-1913
JUN 7.92 1986 0.33 1910 2.83 06-10-1986
JUL 9.99 1952 0.58 1936 5.75 07-01-1958
AUG 8.63 1972 0.20 1930 4.28 08-09-1939
SEP 8.46 1991 0.39 1948 4.13 09-22-1924
OCT 6.38 1982 0.00 1953 3.48 10-14-1920
NOV 5.67 1991 0.07 1917 2.20 11-09-1932
DEC 2.82 1982 0.03 1999 1.80 12-05-1909
 
Annual 47.69 1991 14.89 1976 5.75 07-01-1958
Winter 5.00 1969 0.84 1931 1.80 12-05-1909
Spring 17.28 1938 1.93 1980 3.60 04-15-1961
Summer 19.28 1986 4.85 1961 5.75 07-01-1958
Fall 15.84 1991 1.93 1976 4.13 09-22-1924

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 8.0 3.2 0.4 0.0
FEB 5.2 2.2 0.3 0.0
MAR 7.1 4.2 1.2 0.2
APR 7.8 4.8 1.6 0.3
MAY 10.2 6.5 2.2 0.6
JUN 11.6 8.2 2.6 0.9
JUL 11.0 7.5 2.9 1.1
AUG 10.9 6.7 2.6 1.4
SEP 11.5 6.8 2.5 1.2
OCT 8.9 5.4 1.5 0.4
NOV 8.0 4.4 1.2 0.5
DEC 7.5 3.0 0.2 0.1
 
Annual 107.8 62.9 19.1 6.7
Winter 20.9 8.4 0.9 0.1
Spring 25.2 15.5 5.0 1.1
Summer 33.5 22.4 8.0 3.4
Fall 28.3 16.7 5.2 2.1