Historical Climate Data

Temperature Summary
Station: 477725 SHEBOYGAN, WI
1971-2000 NCDC Normals

Element	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC	ANN
Max °F	28.6	33.0	42.0	52.7	64.7	75.6	81.4	79.7	71.9	59.4	45.0	33.1	55.6
Min °F	13.2	18.1	26.6	35.8	45.2	54.5	61.4	61.3	53.6	42.7	31.3	19.3	38.6
Mean °F	20.9	25.6	34.3	44.3	55.0	65.1	71.4	70.5	62.8	51.1	38.2	26.2	47.1
HDD base 65	1368	1105	952	623	326	91	13	19	117	434	806	1202	7056
CDD base 65	0	0	0	0	15	92	212	189	50	1	0	0	559

Temperature Extremes
Period of Record: 1899-2001

Month	High Mean°F	Year	Low Mean°F	Year	1-Day Max°F	Date	1-Day Min°F	Date
JAN	31.7	1990	4.4	1912	62	01-26-1944	-26	01-17-1982
FEB	35.3	1998	8.0	1936	63	02-23-1984	-25	02-09-1933
MAR	43.0	1910	23.9	1960	80	03-07-2000	-12	03-01-1962
APR	50.7	1915	37.0	1907	92	04-22-1980	10	04-01-1923
MAY	60.5	1977	47.0	1907	94	05-09-1934	27	05-02-1911
JUN	71.1	1988	58.4	1969	102	06-27-1913	34	06-04-1945
JUL	78.3	1921	65.8	1915	108	07-14-1995	43	07-04-1927
AUG	75.7	1955	63.5	1915	107	08-25-1948	37	08-30-1915
SEP	68.4	1998	57.4	1993	101	09-14-1939	28	09-29-1899
OCT	60.3	1963	41.5	1925	90	10-06-1963	14	10-30-1925
NOV	44.8	1999	28.9	1951	79	11-02-1950	-5	11-29-1976
DEC	35.4	1923	14.9	1919	65	12-03-1998	-21	12-24-1983

Annual	53.2	1919	42.5	1917	108	07-14-1995	-26	01-17-1982
Winter	30.8	1998	14.5	1920	65	12-03-1998	-26	01-17-1982
Spring	49.5	1977	38.8	1924	94	05-09-1934	-12	03-01-1962
Summer	73.1	1988	62.7	1915	108	07-14-1995	34	06-04-1945
Fall	55.8	1931	46.1	1951	101	09-14-1939	-5	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	18.5	29.5	5.9
FEB	0.0	12.3	25.4	2.6
MAR	0.0	4.4	22.5	0.2
APR	0.1	0.2	8.2	0.0
MAY	0.1	0.0	0.4	0.0
JUN	1.7	0.0	0.0	0.0
JUL	4.0	0.0	0.0	0.0
AUG	2.4	0.0	0.0	0.0
SEP	0.6	0.0	0.0	0.0
OCT	0.0	0.0	2.9	0.0
NOV	0.0	2.0	15.9	0.1
DEC	0.0	12.1	27.2	2.9

Annual	9.0	49.2	131.8	11.7
Winter	0.0	42.8	82.0	11.4
Spring	0.2	4.6	31.1	0.2
Summer	8.1	0.0	0.0	0.0
Fall	0.6	2.1	19.0	0.1