Historical Climate Data

Temperature Summary
Station: 471205 BURLINGTON, WI
1971-2000 NCDC Normals

Element	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC	ANN
Max °F	26.5	31.6	42.5	55.5	68.3	78.0	82.0	79.7	72.3	60.3	45.2	31.9	56.2
Min °F	8.7	13.5	23.5	34.3	44.5	54.6	60.0	58.1	48.6	37.2	27.1	15.4	35.5
Mean °F	17.6	22.6	33.0	44.9	56.4	66.3	71.0	68.9	60.5	48.8	36.2	23.7	45.8
HDD base 65	1470	1189	992	603	297	69	13	40	166	506	865	1283	7493
CDD base 65	0	0	0	0	31	106	198	161	30	1	0	0	527

Temperature Extremes
Period of Record: 1951-2001

Month	High Mean°F	Year	Low Mean°F	Year	1-Day Max°F	Date	1-Day Min°F	Date
JAN	30.0	1989	5.2	1977	60	01-25-1967	-27	01-20-1985
FEB	34.4	1998	12.4	1979	66	02-12-1999	-27	02-03-1996
MAR	40.6	2000	20.4	1960	82	03-30-1986	-13	03-01-1962
APR	52.8	1955	39.8	1975	90	04-23-1980	3	04-07-1982
MAY	64.7	1977	48.8	1997	94	05-29-1991	22	05-10-1966
JUN	71.6	1987	61.1	1958	102	06-26-1988	32	06-02-1964
JUL	77.1	1955	66.5	1992	105	07-14-1995	39	07-05-1972
AUG	75.5	1988	63.6	1992	102	08-02-1988	39	08-25-1958
SEP	66.2	1978	56.6	1993	101	09-03-1953	23	09-23-1974
OCT	59.8	1963	44.2	1952	90	10-01-1971	15	10-29-1952
NOV	45.5	2001	28.2	1996	76	11-01-1974	-9	11-29-1976
DEC	32.0	1959	12.5	2000	67	12-06-2001	-18	12-21-1989

Annual	50.0	1988	43.2	1980	105	07-14-1995	-27	01-20-1985
Winter	29.0	1998	13.4	1979	67	12-06-1901	-27	01-20-1985
Spring	52.1	1977	40.4	1996	94	05-29-1991	-13	03-01-1962
Summer	73.6	1988	64.6	1992	105	07-14-1995	32	06-02-1964
Fall	54.0	1963	44.5	1976	101	09-03-1953	-9	11-29-1976

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	20.6	30.2	9.1
FEB	0.0	14.1	26.8	5.1
MAR	0.0	5.6	24.6	0.6
APR	0.0	0.4	11.7	0.0
MAY	0.3	0.0	2.0	0.0
JUN	2.7	0.0	0.0	0.0
JUL	4.1	0.0	0.0	0.0
AUG	2.4	0.0	0.0	0.0
SEP	0.8	0.0	0.5	0.0
OCT	0.0	0.0	8.6	0.0
NOV	0.0	3.5	20.9	0.3
DEC	0.0	14.6	29.0	4.2

Annual	10.3	58.8	154.5	19.4
Winter	0.0	49.3	85.9	18.5
Spring	0.3	6.2	38.7	0.6
Summer	9.1	0.0	0.0	0.0
Fall	0.8	3.5	30.3	0.3