Historical Climate Data

Temperature Summary
Station: 478589 TREMPEALEAU DAM 6, WI
1971-2000 NCDC Normals

Element	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC	ANN
Max °F	24.1	30.9	42.4	58.0	70.5	79.1	83.0	80.5	71.9	59.9	42.0	28.6	55.9
Min °F	6.0	12.2	24.4	37.4	49.0	58.1	62.5	60.0	51.5	39.9	26.8	13.4	36.8
Mean °F	15.1	21.6	33.4	47.7	59.8	68.6	72.8	70.3	61.7	49.9	34.4	21.0	46.4
HDD base 65	1549	1216	978	523	216	34	11	20	141	472	919	1364	7443
CDD base 65	0	0	0	4	52	143	251	183	43	3	0	0	679

Temperature Extremes
Period of Record: 1948-2001

Month	High Mean°F	Year	Low Mean°F	Year	1-Day Max°F	Date	1-Day Min°F	Date
JAN	27.3	1990	2.3	1979	56	01-25-1981	-44	01-30-1951
FEB	33.0	1998	9.0	1978	62	02-17-1981	-41	02-03-1996
MAR	41.4	2000	22.5	1960	83	03-29-1986	-32	03-01-1962
APR	55.0	1977	40.5	1950	93	04-21-1980	8	04-06-1982
MAY	67.3	1977	53.4	1997	92	05-26-1967	24	05-24-1963
JUN	72.7	1971	61.7	1969	99	06-30-1949	38	06-10-1972
JUL	77.7	1999	67.0	1992	103	07-13-1995	43	07-07-1984
AUG	76.2	1995	65.8	1992	101	08-23-1948	40	08-20-1950
SEP	67.5	1948	56.1	1993	98	09-07-1978	23	09-29-1949
OCT	60.5	1963	43.6	1990	90	10-06-1963	13	10-30-1988
NOV	48.2	2001	27.0	1991	75	11-03-1978	-9	11-26-1977
DEC	30.9	1959	7.2	1983	63	12-02-1982	-33	12-27-1950

Annual	50.5	1998	43.4	1951	103	07-13-1995	-44	01-30-1951
Winter	27.2	1998	7.5	1977	63	12-02-1982	-44	01-30-1951
Spring	53.7	1977	41.7	1956	93	04-21-1980	-32	03-01-1962
Summer	74.3	1988	66.2	1992	103	07-13-1995	38	06-10-1972
Fall	54.7	1963	44.6	1976	98	09-07-1978	-9	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	22.0	30.8	11.9
FEB	0.0	14.0	27.0	6.7
MAR	0.0	5.5	24.2	1.7
APR	0.0	0.3	9.7	0.0
MAY	0.1	0.0	0.7	0.0
JUN	2.0	0.0	0.0	0.0
JUL	4.7	0.0	0.0	0.0
AUG	2.7	0.0	0.0	0.0
SEP	0.5	0.0	0.6	0.0
OCT	0.0	0.0	7.3	0.0
NOV	0.0	5.8	21.7	0.3
DEC	0.0	17.9	30.0	5.9

Annual	9.8	65.5	152.0	26.5
Winter	0.0	53.9	87.9	24.6
Spring	0.1	5.8	34.7	1.7
Summer	9.3	0.0	0.0	0.0
Fall	0.5	5.9	29.6	0.3