Historical Climate Data

Snowfall Summary
Station: 478905 WASHINGTON ISLAND 1 N, WI

1971-2000 Averages

 

Element JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
Snow(in) 15.6 8.5 9.5 2.9 0.2 0.0 0.0 0.0 0.0 0.1 4.0 11.4 52.2

Snowfall Extremes
Period of Record: 1944-2001

Month High (in) Year 1-Day
Max (in)		 Date
JAN 39.0 1999 17.0 01-07-1967
FEB 36.0 1962 9.0 02-14-1950
MAR 28.5 1989 12.0 03-29-1972
APR 15.5 1996 9.0 04-07-1962
MAY 4.0 1979 4.0 05-05-1979
JUN 0.0 - - -
JUL 0.0 - - -
AUG 0.0 - - -
SEP 0.0 - - -
OCT 3.0 1976 3.0 10-19-1976
NOV 20.3 1995 5.0 11-29-1971
DEC 29.5 1968 8.0 12-27-1976
Season (Jul-Jun) 92.8 1966-1967 17.0 01-07-1967

Snowfall 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 ≥ 0.1"		 # Days
Total ≥ 1.0"		 # Days
Total ≥ 2.0"		 # Days
Total ≥ 5.0"
JAN 8.0 6.5 3.7 0.5
FEB 5.2 3.9 2.0 0.1
MAR 4.6 3.1 2.0 0.5
APR 1.6 1.1 0.7 0.1
MAY 0.1 0.1 0.0 0.0
JUN 0.0 0.0 0.0 0.0
JUL 0.0 0.0 0.0 0.0
AUG 0.0 0.0 0.0 0.0
SEP 0.0 0.0 0.0 0.0
OCT 0.1 0.1 0.0 0.0
NOV 2.7 1.8 1.0 0.0
DEC 6.4 5.0 2.8 0.4
Annual 28.5 21.5 12.3 1.6