Historical Climate Data

Precipitation Summary
Station: 470882 BLAIR, WI
1971-2000 NCDC Normals

Element	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC	ANN
Precip (in)	0.97	0.85	1.90	3.17	3.92	4.07	4.41	4.68	4.13	2.46	2.21	1.13	33.90

Precipitation Extremes
Period of Record: 1896-2001

Month	High (in)	Year	Low (in)	Year	1-Day Max (in)	Date
JAN	4.55	1929	0.02	1981	1.80	01-22-1933
FEB	4.08	1999	0.03	1958	2.22	02-08-1999
MAR	3.85	1961	0.28	1978	1.74	03-23-1966
APR	7.46	1993	0.44	1997	2.82	04-24-1990
MAY	7.95	1960	0.51	1934	3.48	05-01-1954
JUN	10.00	2000	0.84	1964	3.74	06-27-1998
JUL	9.98	1955	0.73	1936	4.17	07-01-1978
AUG	10.97	1980	0.37	1930	6.08	08-23-1975
SEP	11.48	1903	0.15	1950	5.69	09-14-1994
OCT	7.95	1954	0.04	1953	4.50	10-20-1982
NOV	7.65	1991	0.02	1976	2.46	11-10-1975
DEC	3.37	1982	0.00	1943	1.80	12-07-1927

Annual	49.90	1954	19.10	1976	6.08	08-23-1975
Winter	7.57	1932	0.89	1958	2.22	02-08-1999
Spring	15.87	1973	3.41	1925	3.48	05-01-1954
Summer	20.67	1954	5.20	1948	6.08	08-23-1975
Fall	17.11	1931	1.51	1976	5.69	09-14-1994

Precipitation Threshold Climatology
Derived from 1971-2000 Averages

*Annual/seasonal totals may differ from the sum of the monthly totals due to rounding.

Month	# Days Total ≥ 0.01"	# Days Total ≥ 0.10"	# Days Total ≥ 0.50"	# Days Total ≥ 1.00"
JAN	7.6	3.5	0.4	0.0
FEB	6.4	2.6	0.4	0.1
MAR	7.9	4.8	1.1	0.3
APR	10.4	6.8	1.9	0.5
MAY	10.4	7.1	2.7	1.0
JUN	11.3	7.5	2.5	1.0
JUL	10.5	7.3	2.9	1.3
AUG	10.4	7.4	2.8	1.3
SEP	10.3	6.8	2.4	1.0
OCT	8.1	5.0	1.4	0.5
NOV	8.6	4.3	1.5	0.4
DEC	8.1	3.4	0.4	0.0

Annual	110.0	66.4	20.4	7.5
Winter	22.1	9.5	1.1	0.1
Spring	28.7	18.7	5.8	1.8
Summer	32.2	22.1	8.3	3.6
Fall	27.0	16.1	5.2	2.0