Historical Climate Data

Temperature Summary
Station: 478827 VIROQUA 2 NW, WI
1971-2000 NCDC Normals

Element	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC	ANN
Max °F	21.8	28.5	40.5	55.4	67.3	76.3	80.3	77.3	68.7	57.6	40.4	26.7	53.4
Min °F	4.0	10.1	21.6	32.9	44.1	53.7	58.4	56.2	47.2	35.9	23.6	10.5	33.2
Mean °F	12.9	19.3	31.1	44.2	55.7	65.0	69.4	66.8	58.0	46.8	32.0	18.6	43.3
HDD base 65	1616	1280	1052	625	309	71	26	63	224	566	989	1438	8259
CDD base 65	0	0	0	1	21	71	160	117	13	0	0	0	383

Temperature Extremes
Period of Record: 1896-2001

Month	High Mean°F	Year	Low Mean°F	Year	1-Day Max°F	Date	1-Day Min°F	Date
JAN	28.2	1933	-0.9	1912	55	01-01-1897	-42	01-15-1963
FEB	32.2	1998	4.5	1936	63	02-16-1921	-37	02-03-1996
MAR	46.0	1910	20.3	1960	83	03-29-1986	-35	03-01-1962
APR	54.3	1915	37.7	1950	90	04-30-1952	-8	04-06-1982
MAY	67.8	1934	48.9	1924	106	05-31-1934	23	05-04-1907
JUN	75.9	1933	59.8	1969	101	06-29-1931	30	06-01-1897
JUL	79.2	1936	63.1	1992	108	07-13-1936	36	07-07-1984
AUG	77.8	1947	61.8	1992	103	08-17-1937	32	08-28-1986
SEP	69.1	1931	52.4	1993	99	09-08-1939	20	09-22-1995
OCT	59.9	1947	37.2	1925	90	10-06-1963	1	10-30-1925
NOV	44.1	2001	24.9	1951	78	11-01-1950	-17	11-26-1977
DEC	31.5	1931	6.3	1985	63	12-02-1982	-36	12-19-1983

Annual	50.6	1931	40.4	1988	108	07-13-1936	-42	01-15-1963
Winter	26.8	1931	9.8	1979	63	12-02-1982	-42	01-15-1963
Spring	53.0	1977	39.3	1950	106	05-31-1934	-35	03-01-1962
Summer	73.9	1931	62.2	1992	108	07-13-1936	30	06-01-1997
Fall	54.0	1931	42.6	1991	99	09-08-1939	-17	11-26-1977

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	23.7	30.8	13.0
FEB	0.0	15.3	27.4	7.8
MAR	0.0	6.5	26.2	2.1
APR	0.0	0.4	14.7	0.1
MAY	0.1	0.0	3.1	0.0
JUN	0.9	0.0	0.1	0.0
JUL	2.9	0.0	0.0	0.0
AUG	1.4	0.0	0.0	0.0
SEP	0.4	0.0	1.6	0.0
OCT	0.0	0.0	11.5	0.0
NOV	0.0	6.3	24.1	0.9
DEC	0.0	20.1	30.1	7.4

Annual	5.4	73.8	173.4	32.4
Winter	0.0	59.0	88.3	28.3
Spring	0.1	7.1	44.3	2.2
Summer	5.0	0.0	0.1	0.0
Fall	0.4	6.5	38.0	0.9