Historical Climate Data

Temperature Summary
Station: 470308 ARLINGTON EXP FARM, WI
1971-2000 NCDC Normals

Element	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC	ANN
Max °F	23.0	28.6	40.4	55.1	67.6	77.4	80.7	78.5	70.7	59.0	41.6	28.2	54.2
Min °F	8.4	13.3	24.7	35.7	46.6	55.7	60.3	58.5	50.3	39.8	27.4	15.1	36.3
Mean °F	15.7	21.0	32.6	45.4	57.1	66.6	70.5	68.5	60.5	49.4	34.5	21.7	45.3
HDD base 65	1528	1235	1006	590	278	60	16	45	168	486	914	1345	7671
CDD base 65	0	0	0	1	33	106	186	153	33	3	0	0	515

Temperature Extremes
Period of Record: 1962-2001

Month	High Mean°F	Year	Low Mean°F	Year	1-Day Max°F	Date	1-Day Min°F	Date
JAN	28.1	1990	3.0	1977	55	01-31-1989	-36	01-18-1994
FEB	33.2	1998	10.7	1979	61	02-27-2000	-30	02-02-1996
MAR	40.9	2000	23.9	1965	81	03-29-1986	-9	03-12-1993
APR	52.6	1977	40.0	1975	90	04-22-1980	7	04-06-1982
MAY	65.7	1977	51.1	1997	91	05-19-1972	23	05-09-1966
JUN	71.8	1995	60.0	1969	100	06-20-1988	34	06-16-1964
JUL	75.0	1988	65.8	1992	100	07-15-1988	38	07-06-1965
AUG	75.6	1995	64.1	1986	102	08-16-1988	34	08-28-1986
SEP	65.7	1978	54.6	1993	96	09-08-1978	25	09-29-1962
OCT	58.7	1963	44.7	1980	90	10-06-1963	14	10-19-1992
NOV	45.9	2001	28.1	1976	75	11-09-1999	-9	11-29-1976
DEC	30.5	1998	10.2	2000	63	12-02-1962	-26	12-19-1983

Annual	50.5	1998	43.7	1979	102	08-16-1988	-36	01-18-1994
Winter	27.8	1998	12.1	1977	63	12-02-1962	-36	01-18-1994
Spring	52.7	1977	42.1	1997	91	05-19-1972	-9	03-12-1993
Summer	73.8	1988	64.9	1992	102	08-16-1988	34	06-16-1964
Fall	53.0	1971	44.1	1976	96	09-08-1978	-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	21.7	30.6	10.0
FEB	0.0	14.8	26.8	5.9
MAR	0.0	5.6	25.7	1.1
APR	0.0	0.4	12.1	0.0
MAY	0.1	0.0	1.7	0.0
JUN	2.5	0.0	0.0	0.0
JUL	4.1	0.0	0.0	0.0
AUG	2.1	0.0	0.0	0.0
SEP	0.5	0.0	0.8	0.0
OCT	0.0	0.0	8.4	0.0
NOV	0.0	4.8	21.8	0.3
DEC	0.0	17.5	29.8	5.2

Annual	9.3	65.0	157.1	22.5
Winter	0.0	54.1	87.2	21.0
Spring	0.2	6.1	39.5	1.1
Summer	8.6	0.0	0.0	0.0
Fall	0.5	4.6	30.2	0.3