Historical Climate Data

Temperature Summary
Station: 476827 PRAIRIE DU CHIEN, WI
1971-2000 NCDC Normals

Element	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC	ANN
Max °F	25.4	32.3	44.7	59.2	70.8	80.6	84.4	81.8	73.8	62.5	44.6	31.1	57.6
Min °F	6.2	11.8	23.9	36.5	47.7	57.8	62.1	60.1	50.5	39.3	26.0	13.9	36.3
Mean °F	15.8	22.1	34.3	47.9	59.3	69.2	73.3	71.0	62.2	50.9	35.3	22.5	47.0
HDD base 65	1525	1203	951	519	228	28	10	27	135	440	891	1318	7275
CDD base 65	0	0	0	4	49	155	264	212	48	3	0	0	735

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	30.8	1933	-1.1	1912	66	01-01-1897	-37	01-30-1951
FEB	35.8	1998	4.0	1936	66	02-26-2000	-36	02-03-1996
MAR	45.8	1945	22.4	1912	86	03-24-1910	-33	03-01-1962
APR	56.5	1915	41.3	1907	96	04-22-1980	0	04-08-1972
MAY	68.3	1977	51.8	1907	109	05-31-1934	22	05-06-1989
JUN	77.1	1933	63.4	1917	105	06-30-1931	35	06-02-1896
JUL	82.9	1901	68.3	1992	110	07-22-1901	41	07-08-1896
AUG	81.6	1947	65.9	1915	104	08-20-1916	35	08-27-1896
SEP	70.6	1897	57.3	1918	104	09-07-1939	22	09-30-1899
OCT	62.1	1947	40.5	1917	93	10-06-1963	4	10-30-1925
NOV	48.8	1902	29.1	1911	84	11-01-1904	-17	11-26-1977
DEC	33.8	1923	10.1	2000	66	12-06-2001	-26	12-27-1950

Annual	53.3	1946	42.1	1917	110	07-22-1901	-37	01-30-1951
Winter	30.1	1998	11.5	1936	66	12-06-1901	-37	01-30-1951
Spring	55.8	1977	42.9	1917	109	05-31-1934	-33	03-01-1962
Summer	76.6	1901	66.2	1915	110	07-22-1901	35	06-02-1996
Fall	56.5	1931	45.9	1917	104	09-07-1939	-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	19.2	30.1	9.5
FEB	0.0	12.0	25.8	5.4
MAR	0.0	3.7	22.8	0.9
APR	0.2	0.1	9.4	0.0
MAY	0.9	0.0	1.0	0.0
JUN	4.1	0.0	0.0	0.0
JUL	8.6	0.0	0.0	0.0
AUG	5.4	0.0	0.0	0.0
SEP	1.8	0.0	0.6	0.0
OCT	0.2	0.0	6.8	0.0
NOV	0.0	3.3	19.6	0.3
DEC	0.0	13.9	29.1	4.9

Annual	21.0	52.4	145.4	21.2
Winter	0.0	45.1	84.9	19.8
Spring	1.0	3.9	33.2	0.9
Summer	18.2	0.0	0.0	0.0
Fall	1.9	3.3	26.9	0.3