Historical Climate Data

Temperature Summary
Station: 472001 DARLINGTON, WI
1971-2000 NCDC Normals

Element	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC	ANN
Max °F	26.7	32.9	44.8	58.3	70.5	79.6	83.2	80.8	72.6	61.0	44.3	31.1	57.2
Min °F	6.0	12.1	23.3	34.4	45.9	55.3	60.0	57.6	48.3	36.9	24.6	12.2	34.7
Mean °F	16.4	22.5	34.1	46.4	58.2	67.5	71.6	69.2	60.5	49.0	34.5	21.7	46.0
HDD base 65	1508	1191	958	560	252	43	11	41	170	501	916	1345	7496
CDD base 65	0	0	0	1	41	117	216	171	33	2	0	0	581

Temperature Extremes
Period of Record: 1901-2001

Month	High Mean°F	Year	Low Mean°F	Year	1-Day Max°F	Date	1-Day Min°F	Date
JAN	31.2	1933	1.7	1912	59	01-31-1989	-41	01-30-1951
FEB	35.1	1954	5.1	1936	67	02-25-2000	-36	02-20-1929
MAR	46.0	1945	20.4	1960	84	03-29-1986	-33	03-01-1962
APR	55.2	1915	39.8	1904	93	04-22-1980	-1	04-07-1982
MAY	66.1	1934	52.1	1997	104	05-31-1934	20	05-01-1918
JUN	76.0	1934	61.7	1982	104	06-01-1934	30	06-10-1913
JUL	79.6	1916	66.8	1992	107	07-13-1936	39	07-26-1911
AUG	76.6	1947	62.6	1915	102	08-16-1988	29	08-30-1915
SEP	69.2	1931	55.6	1918	100	09-06-1922	21	09-29-1949
OCT	60.2	1947	39.3	1925	91	10-01-1976	-2	10-30-1925
NOV	45.7	2001	27.7	1976	79	11-01-1933	-20	11-30-1947
DEC	33.8	1923	9.5	2000	65	12-04-1998	-33	12-27-1950

Annual	51.3	1901	43.2	1904	107	07-13-1936	-41	01-30-1951
Winter	30.0	1932	11.1	1904	67	02-25-1900	-41	01-30-1951
Spring	53.2	1977	42.3	1947	104	05-31-1934	-33	03-01-1962
Summer	73.7	1988	64.5	1915	107	07-13-1936	29	08-30-1915
Fall	56.2	1931	43.6	1976	100	09-06-1922	-20	11-30-1947

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	20.9	30.5	10.6
FEB	0.0	13.5	26.7	6.2
MAR	0.0	4.5	25.0	1.0
APR	0.0	0.2	12.1	0.0
MAY	0.1	0.0	2.0	0.0
JUN	1.7	0.0	0.0	0.0
JUL	4.9	0.0	0.0	0.0
AUG	2.5	0.0	0.0	0.0
SEP	1.0	0.0	1.1	0.0
OCT	0.0	0.0	10.2	0.0
NOV	0.0	4.1	22.9	0.4
DEC	0.0	15.8	29.6	6.1

Annual	10.2	59.7	161.4	24.8
Winter	0.0	50.1	86.8	23.0
Spring	0.2	4.7	39.1	1.0
Summer	9.1	0.0	0.0	0.0
Fall	1.0	4.1	34.2	0.4