Historical Climate Data

Temperature Summary
Station: 470265 APPLETON, WI
1971-2000 NCDC Normals

Element	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC	ANN
Max °F	24.1	29.4	40.2	54.4	68.3	77.1	81.4	78.7	70.2	57.5	41.9	28.9	54.3
Min °F	7.8	12.7	22.8	34.6	46.5	56.2	61.7	60.0	51.2	39.7	27.3	14.4	36.2
Mean °F	16.0	21.1	31.5	44.5	57.4	66.7	71.6	69.4	60.7	48.6	34.6	21.7	45.3
HDD base 65	1520	1230	1039	617	281	62	15	30	161	509	913	1344	7721
CDD base 65	0	0	0	1	45	111	217	164	32	2	0	0	572

Temperature Extremes
Period of Record: 1901-2001

Month	High Mean°F	Year	Low Mean°F	Year	1-Day Max°F	Date	1-Day Min°F	Date
JAN	26.9	1990	0.1	1912	55	01-27-1944	-30	01-30-1951
FEB	31.3	1998	3.9	1936	59	02-23-1930	-32	02-20-1929
MAR	42.1	1910	22.3	1960	80	03-29-1910	-21	03-01-1962
APR	53.1	1915	36.6	1907	89	04-22-1980	7	04-06-1979
MAY	69.2	1911	49.3	1907	94	05-31-1988	23	05-04-1905
JUN	72.7	1911	59.5	1969	101	06-20-1988	34	06-08-1913
JUL	78.3	1916	66.8	1992	107	07-14-1936	41	07-31-1903
AUG	77.5	1947	63.7	1927	103	08-16-1988	35	08-27-1915
SEP	67.4	1908	54.4	1993	101	09-02-1913	25	09-30-1993
OCT	60.0	1947	38.7	1917	89	10-06-1963	15	10-19-1992
NOV	43.0	1931	26.1	1995	73	11-01-1935	-7	11-29-1929
DEC	31.4	1939	9.9	1985	61	12-03-1998	-23	12-21-1989

Annual	50.3	1938	40.6	1917	107	07-14-1936	-32	02-20-1929
Winter	26.8	1998	11.5	1918	61	12-03-1998	-32	02-20-1929
Spring	50.7	1977	38.5	1996	94	05-31-1988	-21	03-01-1962
Summer	74.3	1988	64.1	1915	107	07-14-1936	34	06-08-1913
Fall	54.8	1931	44.0	1976	101	09-02-1913	-7	11-29-1929

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	22.5	30.6	9.9
FEB	0.0	16.4	27.2	5.4
MAR	0.0	7.1	25.8	1.1
APR	0.0	0.5	12.0	0.0
MAY	0.2	0.0	1.3	0.0
JUN	1.7	0.0	0.0	0.0
JUL	3.3	0.0	0.0	0.0
AUG	1.3	0.0	0.0	0.0
SEP	0.1	0.0	0.5	0.0
OCT	0.0	0.0	6.3	0.0
NOV	0.0	5.7	21.3	0.2
DEC	0.0	18.6	29.9	5.4

Annual	6.6	70.6	155.1	22.0
Winter	0.0	57.5	87.7	20.7
Spring	0.2	7.7	39.6	1.1
Summer	6.3	0.0	0.0	0.0
Fall	0.1	5.6	27.7	0.2