Historical Climate Data

Precipitation Summary
Station: 476764 PORT WASHINGTON, WI

1971-2000 NCDC Normals

 

Element JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
Precip (in) 1.47 1.18 1.90 3.15 2.93 3.58 3.81 4.21 3.48 2.30 2.25 1.82 32.08

Precipitation Extremes
Period of Record: 1896-2001

Month High (in) Year Low (in) Year 1-Day
Max (in)		 Date
JAN 5.50 1999 0.07 1902 2.40 01-24-1938
FEB 3.94 1922 0.00 1987 2.73 02-21-1922
MAR 5.22 1920 0.05 1910 1.85 03-27-1908
APR 7.29 1909 0.00 1915 3.25 04-24-1955
MAY 8.01 2000 0.45 1934 3.12 05-13-1978
JUN 18.33 1996 0.24 1912 9.87 06-18-1996
JUL 10.14 1952 0.28 1936 4.15 07-12-1981
AUG 9.52 1924 0.14 1969 5.28 08-04-1924
SEP 14.13 1986 0.01 1979 3.50 09-02-2000
OCT 6.41 1985 0.10 1924 2.88 10-03-1954
NOV 6.52 1985 0.08 1904 2.00 11-01-1985
DEC 5.02 1909 0.07 1960 2.50 12-03-1990
 
Annual 45.24 1985 19.05 1910 9.87 06-18-1996
Winter 9.57 1898 1.03 1961 2.73 02-21-1922
Spring 13.49 2000 2.86 1994 3.25 04-24-1955
Summer 24.89 1996 3.07 1941 9.87 06-18-1996
Fall 18.22 1985 3.11 1953 3.50 09-02-2000

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 4.0 0.9 0.1
FEB 5.7 3.0 0.5 0.1
MAR 6.8 4.9 1.3 0.3
APR 8.8 6.0 2.2 0.7
MAY 8.6 6.0 2.0 0.5
JUN 9.2 6.1 2.3 0.7
JUL 8.2 6.4 2.4 0.9
AUG 8.7 6.6 2.8 1.4
SEP 8.2 5.7 2.3 1.0
OCT 7.7 4.9 1.4 0.6
NOV 7.7 5.0 1.3 0.5
DEC 7.6 3.7 1.1 0.4
 
Annual 94.9 62.5 20.6 7.4
Winter 21.0 10.7 2.5 0.7
Spring 24.2 16.9 5.6 1.6
Summer 26.1 19.1 7.5 3.0
Fall 23.6 15.7 5.0 2.1