Historical Climate Data

Temperature Summary
Station: 474937 LYNXVILLE DAM 9, WI
1971-2000 NCDC Normals

Element	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC	ANN
Max °F	25.5	31.8	43.6	58.4	70.8	79.6	83.6	81.2	73.1	61.2	44.0	30.3	56.9
Min °F	9.0	15.0	27.0	39.4	50.7	60.1	64.9	63.0	54.4	42.7	29.3	16.2	39.3
Mean °F	17.3	23.4	35.3	48.9	60.8	69.9	74.3	72.1	63.8	52.0	36.7	23.3	48.2
HDD base 65	1480	1165	920	487	192	25	4	14	97	407	851	1294	6936
CDD base 65	0	0	0	5	61	170	290	234	60	3	0	0	823

Temperature Extremes
Period of Record: 1948-2001

Month	High Mean°F	Year	Low Mean°F	Year	1-Day Max°F	Date	1-Day Min°F	Date
JAN	28.9	1990	3.3	1977	56	01-25-1981	-43	01-30-1951
FEB	34.6	1998	11.4	1978	63	02-17-1981	-34	02-03-1996
MAR	42.9	2000	23.0	1960	82	03-29-1986	-34	03-01-1962
APR	55.9	1977	41.8	1950	93	04-22-1980	11	04-08-1972
MAY	67.7	1977	54.7	1954	92	05-22-1972	27	05-06-1989
JUN	74.2	1971	63.7	1969	100	06-21-1988	40	06-10-1972
JUL	79.1	1955	68.7	1992	101	07-07-1980	46	07-30-1971
AUG	77.5	1983	67.2	1992	101	08-17-1988	44	08-20-1950
SEP	68.2	1948	58.3	1993	96	09-09-1955	29	09-30-1984
OCT	61.4	1963	45.5	1952	92	10-03-1997	18	10-29-1952
NOV	48.9	2001	28.2	1959	75	11-08-1999	-8	11-26-1977
DEC	31.9	1959	11.1	1985	66	12-05-2001	-29	12-25-2000

Annual	52.3	1949	42.1	1996	101	07-07-1980	-43	01-30-1951
Winter	29.4	1998	13.2	1978	66	12-05-1901	-43	01-30-1951
Spring	55.0	1977	38.2	1996	93	04-22-1980	-34	03-01-1962
Summer	75.6	1988	67.7	1992	101	07-07-1980	40	06-10-1972
Fall	55.8	1963	46.2	1976	96	09-09-1955	-8	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	20.5	30.6	9.4
FEB	0.0	13.2	26.5	5.6
MAR	0.0	4.2	23.0	0.7
APR	0.0	0.2	7.4	0.0
MAY	0.2	0.0	0.2	0.0
JUN	2.3	0.0	0.0	0.0
JUL	5.5	0.0	0.0	0.0
AUG	3.0	0.0	0.0	0.0
SEP	0.7	0.0	0.2	0.0
OCT	0.1	0.0	4.2	0.0
NOV	0.0	4.2	19.3	0.1
DEC	0.0	15.9	29.4	4.5

Annual	11.7	58.9	141.7	20.5
Winter	0.0	49.6	86.4	19.5
Spring	0.3	4.4	30.8	0.7
Summer	10.8	0.0	0.0	0.0
Fall	0.7	4.3	23.7	0.1