Historical Climate Data

Temperature Summary
Station: 474370 LA CROSSE WSO AIRPORT, WI
1971-2000 NCDC Normals

Element	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC	ANN
Max °F	25.5	32.4	44.6	59.7	72.5	81.3	85.2	82.5	73.7	61.1	43.6	29.9	57.7
Min °F	6.3	12.8	24.5	37.1	48.7	57.9	62.8	60.7	51.7	40.1	27.4	13.6	37.0
Mean °F	15.9	22.6	34.6	48.4	60.6	69.6	74.0	71.6	62.7	50.6	35.5	21.8	47.3
HDD base 65	1536	1202	959	521	202	38	6	17	152	467	893	1347	7340
CDD base 65	0	0	0	8	49	162	272	208	70	6	0	0	775

Temperature Extremes
Period of Record: 1943-2001

Month	High Mean°F	Year	Low Mean°F	Year	1-Day Max°F	Date	1-Day Min°F	Date
JAN	28.1	1990	2.9	1977	57	01-25-1981	-37	01-30-1951
FEB	34.1	1998	10.8	1978	64	02-17-1981	-36	02-08-1971
MAR	43.0	1946	22.1	1960	84	03-29-1986	-28	03-01-1962
APR	54.6	1977	38.5	1950	93	04-22-1980	7	04-06-1982
MAY	67.4	1977	52.0	1945	94	05-26-1967	26	05-09-1945
JUN	74.3	1991	61.4	1969	102	06-21-1988	32	06-04-1945
JUL	78.5	1955	68.0	1992	108	07-13-1995	41	07-22-1947
AUG	77.8	1995	65.2	1950	105	08-01-1988	36	08-20-1950
SEP	68.8	1998	56.5	1993	100	09-09-1955	23	09-29-1949
OCT	61.2	1963	44.6	1988	93	10-06-1963	14	10-30-1988
NOV	47.5	2001	26.4	1959	75	11-03-1978	-16	11-29-1947
DEC	30.6	1959	6.4	1983	67	12-05-1998	-30	12-19-1983

Annual	52.0	1998	42.4	1950	108	07-13-1995	-37	01-30-1951
Winter	28.8	1998	11.5	1978	67	12-05-1998	-37	01-30-1951
Spring	54.0	1977	40.3	1950	94	05-26-1967	-28	03-01-1962
Summer	75.8	1995	66.5	1950	108	07-13-1995	32	06-04-1945
Fall	55.1	1963	44.6	1976	100	09-09-1955	-16	11-29-1947

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	22.1	30.5	11.6
FEB	0.0	14.0	26.4	6.6
MAR	0.0	5.5	24.0	1.3
APR	0.1	0.3	9.4	0.0
MAY	1.0	0.0	0.6	0.0
JUN	4.0	0.0	0.0	0.0
JUL	7.3	0.0	0.0	0.0
AUG	4.1	0.0	0.0	0.0
SEP	1.3	0.0	0.4	0.0
OCT	0.1	0.0	6.5	0.0
NOV	0.0	5.2	21.1	0.3
DEC	0.0	17.5	29.3	5.7

Annual	18.2	63.6	146.3	25.0
Winter	0.0	53.6	86.2	23.9
Spring	1.1	5.8	33.9	1.3
Summer	15.4	0.0	0.0	0.0
Fall	1.4	5.2	27.7	0.3