Historical Climate Data

Temperature Summary
Station: 471078 BRODHEAD 1 SW, WI
1971-2000 NCDC Normals

Element	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC	ANN
Max °F	25.9	31.2	43.3	57.2	69.8	79.5	83.0	80.5	73.1	61.2	44.7	31.2	56.7
Min °F	5.9	11.2	22.8	34.2	45.5	55.2	59.6	57.1	47.2	35.9	25.1	12.8	34.4
Mean °F	15.9	21.2	33.1	45.7	57.7	67.4	71.3	68.8	60.2	48.6	34.9	22.0	45.6
HDD base 65	1523	1226	991	580	270	52	12	47	178	515	902	1334	7630
CDD base 65	0	0	0	1	42	122	207	165	31	5	0	0	573

Temperature Extremes
Period of Record: 1897-2001

Month	High Mean°F	Year	Low Mean°F	Year	1-Day Max°F	Date	1-Day Min°F	Date
JAN	32.4	1933	3.1	1912	61	01-26-1944	-36	01-30-1951
FEB	34.7	1998	6.6	1936	69	02-26-2000	-35	02-20-1929
MAR	45.8	1945	17.6	1960	84	03-29-1910	-21	03-01-1962
APR	56.5	1915	40.0	1907	92	04-10-1930	7	04-04-1975
MAY	66.9	1934	52.2	1907	105	05-31-1934	24	05-04-1907
JUN	76.2	1933	60.8	1982	108	06-25-1901	33	06-04-1945
JUL	81.3	1901	66.7	1992	111	07-21-1901	25	07-09-1899
AUG	79.4	1947	64.0	1992	103	08-06-1918	35	08-30-1915
SEP	69.2	1931	56.0	1993	102	09-06-1922	20	09-30-1899
OCT	60.0	1963	40.9	1925	89	10-01-1971	2	10-30-1925
NOV	46.1	2001	27.5	1959	80	11-01-1933	-18	11-30-1947
DEC	34.2	1923	8.8	1985	67	12-06-2001	-30	12-27-1950

Annual	51.6	1921	43.7	1979	111	07-21-1901	-36	01-30-1951
Winter	29.0	1998	13.1	1963	69	02-26-1900	-36	01-30-1951
Spring	54.5	1977	40.4	1960	105	05-31-1934	-21	03-01-1962
Summer	75.4	1921	65.3	1992	111	07-21-1901	25	07-09-1999
Fall	56.1	1931	45.3	1976	102	09-06-1922	-18	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	20.4	30.6	10.4
FEB	0.0	13.5	27.1	6.9
MAR	0.0	4.8	25.7	0.9
APR	0.0	0.2	12.4	0.0
MAY	0.4	0.0	1.9	0.0
JUN	2.8	0.0	0.0	0.0
JUL	5.4	0.0	0.0	0.0
AUG	3.0	0.0	0.0	0.0
SEP	0.9	0.0	1.6	0.0
OCT	0.0	0.0	11.5	0.0
NOV	0.0	3.5	22.8	0.3
DEC	0.0	15.2	29.4	5.8

Annual	12.9	57.1	162.2	24.2
Winter	0.0	49.1	87.1	23.0
Spring	0.5	5.0	39.5	0.9
Summer	11.3	0.0	0.0	0.0
Fall	0.9	3.5	35.9	0.3