Historical Climate Data

Temperature Summary
Station: 470516 BARABOO WATER WORKS, WI
1971-2000 NCDC Normals

Element	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC	ANN
Max °F	26.1	31.9	43.3	57.0	69.8	79.0	82.9	80.6	72.3	60.3	43.9	31.1	56.5
Min °F	1.6	6.5	18.5	29.9	41.4	50.6	55.3	52.3	43.6	32.5	21.2	8.6	30.2
Mean °F	13.9	19.2	30.9	43.5	55.6	64.8	69.1	66.5	58.0	46.4	32.6	19.9	43.4
HDD base 65	1587	1282	1058	648	316	83	28	72	225	576	973	1400	8248
CDD base 65	0	0	0	0	25	78	155	117	12	0	0	0	387

Temperature Extremes
Period of Record: 1949-2001

Month	High Mean°F	Year	Low Mean°F	Year	1-Day Max°F	Date	1-Day Min°F	Date
JAN	28.9	1990	1.9	1977	57	01-31-1989	-45	01-30-1951
FEB	32.6	1998	8.6	1979	63	02-22-1984	-41	02-03-1996
MAR	40.1	1973	19.1	1960	84	03-29-1986	-34	03-01-1962
APR	53.5	1985	38.6	1975	92	04-22-1980	-2	04-07-1982
MAY	64.5	1977	50.0	1996	92	05-29-1991	22	05-01-1978
JUN	70.3	1971	59.0	1969	102	06-21-1988	31	06-05-1982
JUL	77.1	1955	64.7	1992	102	07-15-1988	38	07-10-1996
AUG	73.9	1955	63.0	1994	102	08-16-1988	34	08-27-1986
SEP	63.3	1960	53.7	1993	99	09-09-1955	20	09-29-1949
OCT	59.4	1963	41.1	1988	92	10-06-1963	10	10-29-1988
NOV	44.0	2001	24.6	1995	76	11-03-1964	-17	11-26-1977
DEC	30.5	1959	8.1	1985	64	12-03-1962	-35	12-19-1983

Annual	47.8	1998	40.9	1996	102	06-21-1988	-45	01-30-1951
Winter	27.2	1998	10.0	1979	64	12-03-1962	-45	01-30-1951
Spring	51.4	1977	37.9	1996	92	04-22-1980	-34	03-01-1962
Summer	72.2	1988	63.9	1992	102	06-21-1988	31	06-05-1982
Fall	53.7	1963	42.4	1995	99	09-09-1955	-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	21.0	30.7	13.1
FEB	0.0	13.7	27.4	8.2
MAR	0.0	5.4	27.1	2.4
APR	0.0	0.4	16.7	0.0
MAY	0.2	0.0	4.0	0.0
JUN	2.3	0.0	0.1	0.0
JUL	4.4	0.0	0.0	0.0
AUG	1.9	0.0	0.0	0.0
SEP	0.5	0.0	2.7	0.0
OCT	0.0	0.0	14.1	0.0
NOV	0.0	4.5	24.4	0.7
DEC	0.0	16.0	30.0	6.9

Annual	9.3	61.3	177.4	31.5
Winter	0.0	50.7	88.1	28.2
Spring	0.2	5.8	47.9	2.5
Summer	8.6	0.0	0.1	0.0
Fall	0.5	4.6	41.3	0.7