Historical Climate Data

Precipitation Summary
Station: 471039 BREAKWATER, WI
1971-2000 NCDC Normals

Element	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC	ANN
Precip (in)	1.31	0.83	1.89	2.48	3.08	3.33	3.35	3.94	3.73	2.66	2.07	1.49	30.16

Precipitation Extremes
Period of Record: 1923-2001

Month	High (in)	Year	Low (in)	Year	1-Day Max (in)	Date
JAN	3.21	1969	0.06	1961	1.14	01-05-1946
FEB	2.51	1945	0.07	1993	1.15	02-12-1984
MAR	4.62	1966	0.27	1993	1.58	03-23-1979
APR	5.25	1954	0.37	1926	1.88	04-23-1975
MAY	8.13	1965	0.37	1986	2.90	05-16-1976
JUN	7.56	1968	1.09	1941	2.78	06-14-1981
JUL	13.16	1999	0.58	1933	5.10	07-15-1999
AUG	8.97	1959	0.33	1933	2.83	08-29-1941
SEP	7.07	1928	0.62	1976	2.71	09-01-1961
OCT	5.23	1979	0.24	1952	2.19	10-24-1959
NOV	6.32	1945	0.42	1967	1.95	11-08-1945
DEC	3.35	1959	0.10	1943	1.21	12-28-1959

Annual	38.93	1983	19.23	1963	5.10	07-15-1999
Winter	7.06	1971	1.02	1987	1.21	12-28-1959
Spring	13.16	1965	3.00	1925	2.90	05-16-1976
Summer	19.30	1999	4.70	1933	5.10	07-15-1999
Fall	14.79	1985	1.69	1976	2.71	09-01-1961

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	9.4	4.1	0.4	0.0
FEB	6.3	3.1	0.1	0.0
MAR	8.0	4.6	1.1	0.2
APR	9.3	6.0	1.5	0.2
MAY	9.6	6.3	2.0	0.5
JUN	11.1	7.4	2.0	0.6
JUL	10.7	7.2	2.7	0.7
AUG	11.4	7.4	2.9	1.0
SEP	11.7	7.3	2.5	0.9
OCT	10.2	6.0	1.7	0.4
NOV	9.4	5.5	1.5	0.2
DEC	9.9	4.2	0.5	0.0

Annual	117.4	69.5	19.2	5.0
Winter	25.6	11.4	1.0	0.1
Spring	27.0	16.9	4.6	1.0
Summer	33.2	21.9	7.5	2.3
Fall	31.4	18.8	5.8	1.5