Historical Climate Data

Temperature Summary
Station: 477480 ST GERMAIN 2 SE, WI

1971-2000 NCDC Normals

 

Element JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
Max °F 18.2 24.2 34.9 49.3 64.3 71.2 74.8 72.6 63.5 52.0 36.0 22.8 48.7
Min °F -3.6 -0.2 12.1 26.4 39.9 49.7 55.0 52.8 43.7 32.4 19.3 4.3 27.7
Mean °F 7.3 12.0 23.5 37.9 52.1 60.5 64.9 62.7 53.6 42.2 27.7 13.6 38.2
HDD
base 65		 1791 1486 1288 815 419 173 80 126 348 706 1121 1595 9948
CDD
base 65		 0 0 0 0 19 36 76 54 5 0 0 0 190

Temperature Extremes
Period of Record: 1971-2001

Month High
Mean°F		 Year Low
Mean°F		 Year 1-Day
Max°F		 Date 1-Day
Min°F		 Date
JAN 20.1 1990 -0.3 1977 48 01-26-1981 -40 01-17-1982
FEB 28.1 1998 5.8 1979 55 02-23-2000 -43 02-03-1996
MAR 34.1 1973 16.2 1996 72 03-09-2000 -25 03-07-1996
APR 46.1 1987 32.2 1996 89 04-23-1980 -8 04-07-1982
MAY 61.6 1977 45.3 1997 87 05-18-1972 19 05-02-1996
JUN 66.9 1995 55.0 1982 93 06-14-1988 32 06-10-1972
JUL 70.0 1983 58.8 1992 97 07-07-1988 35 07-01-1988
AUG 67.9 1983 58.5 1977 95 08-17-1988 35 08-24-1987
SEP 60.0 1998 48.9 1993 92 09-12-1998 24 09-24-1989
OCT 50.0 1973 38.8 1987 83 10-02-1976 7 10-30-1988
NOV 39.2 2001 20.0 1995 70 11-01-1990 -18 11-28-1976
DEC 23.9 2001 5.4 1976 58 12-03-1982 -33 12-19-1983
 
Annual 44.1 1987 36.9 1996 97 07-07-1988 -43 02-03-1996
Winter 22.3 1998 5.8 1979 58 12-03-1982 -43 02-03-1996
Spring 46.0 1977 32.2 1996 89 04-23-1980 -25 03-07-1996
Summer 67.3 1988 60.8 1982 97 07-07-1988 32 06-10-1972
Fall 46.1 1998 37.9 1976 92 09-12-1998 -18 11-28-1976

Temperature Threshold Climatology
Derived from 1971-2000 Averages


*Annual/seasonal totals may differ from the sum of the monthly totals due to rounding.

Month # Days
Max ≥ 90°F		 # Days
Max ≤ 32°F		 # Days
Min ≤ 32°F		 # Days
Min ≤ 0°F
JAN 0.0 27.2 30.9 15.6
FEB 0.0 20.0 28.0 12.2
MAR 0.0 11.4 28.8 5.3
APR 0.0 1.7 20.7 0.2
MAY 0.0 0.0 6.2 0.0
JUN 0.3 0.0 0.2 0.0
JUL 0.9 0.0 0.0 0.0
AUG 0.3 0.0 0.0 0.0
SEP 0.1 0.0 1.4 0.0
OCT 0.0 0.6 13.7 0.0
NOV 0.0 11.0 26.7 1.1
DEC 0.0 25.1 30.8 9.7
 
Annual 1.5 97.8 187.6 44.0
Winter 0.0 72.4 89.7 37.4
Spring 0.0 13.2 55.7 5.5
Summer 1.4 0.0 0.2 0.0
Fall 0.1 11.8 42.3 1.1