Historical Climate Data

Temperature Summary
Station: 473654 HILLSBORO SEWAGE PLANT, WI

1971-2000 NCDC Normals

 

Element JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
Max °F 24.1 30.6 42.2 56.5 68.9 78.1 82.2 79.7 71.2 59.7 43.0 29.3 55.5
Min °F 2.8 8.8 21.8 33.2 44.3 54.0 59.0 56.6 47.3 35.8 24.0 10.1 33.1
Mean °F 13.5 19.7 32.0 44.9 56.6 66.1 70.6 68.2 59.3 47.8 33.5 19.7 44.3
HDD
base 65		 1598 1268 1024 605 290 64 20 47 194 538 946 1403 7997
CDD
base 65		 0 0 0 1 28 95 193 146 21 2 0 0 486

Temperature Extremes
Period of Record: 1959-2001

Month High
Mean°F		 Year Low
Mean°F		 Year 1-Day
Max°F		 Date 1-Day
Min°F		 Date
JAN 26.9 1990 1.3 1977 59 01-26-1981 -44 01-15-1963
FEB 32.6 1998 9.6 1979 61 02-18-1981 -40 02-03-1996
MAR 41.7 1973 19.6 1960 83 03-29-1986 -38 03-01-1962
APR 53.4 1977 36.5 1969 91 04-23-1980 -14 04-10-1969
MAY 65.6 1977 50.4 1997 92 05-26-1967 19 05-10-1966
JUN 71.0 1971 59.6 1969 100 06-21-1988 32 06-01-1964
JUL 75.3 1977 64.9 1992 100 07-01-1963 41 07-15-1967
AUG 74.3 1995 63.1 1992 101 08-17-1988 33 08-14-1964
SEP 65.3 1978 53.7 1993 96 09-09-1978 23 09-29-1967
OCT 58.7 1963 41.2 1988 92 10-06-1963 11 10-29-1988
NOV 46.0 2001 25.2 1959 75 11-03-1964 -10 11-27-1996
DEC 30.4 1965 7.8 1983 64 12-02-1982 -33 12-18-1983
 
Annual 54.9 1977 41.2 1969 101 08-17-1988 -44 01-15-1963
Winter 27.3 1998 10.9 1979 64 12-02-1982 -44 01-15-1963
Spring 53.2 1977 39.5 1996 92 05-26-1967 -38 03-01-1962
Summer 71.6 1983 63.6 1992 101 08-17-1988 32 06-01-1964
Fall 52.3 1963 43.7 1993 96 09-09-1978 -10 11-27-1996

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 21.4 30.7 12.2
FEB 0.0 14.0 27.1 7.5
MAR 0.0 5.1 26.3 1.8
APR 0.0 0.3 14.1 0.0
MAY 0.2 0.0 2.9 0.0
JUN 2.1 0.0 0.0 0.0
JUL 5.2 0.0 0.0 0.0
AUG 2.5 0.0 0.0 0.0
SEP 0.7 0.0 1.5 0.0
OCT 0.0 0.0 11.9 0.0
NOV 0.0 4.7 24.2 0.6
DEC 0.0 17.1 30.3 6.9
 
Annual 10.7 61.3 167.9 28.7
Winter 0.0 52.6 88.2 26.6
Spring 0.2 5.4 43.0 1.8
Summer 9.8 0.0 0.0 0.0
Fall 0.7 4.5 36.7 0.6