Historical Climate Data

Temperature Summary
Station: 472556 ELLSWORTH 1 E, WI
1971-2000 NCDC Normals

Element	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC	ANN
Max °F	21.6	28.7	40.4	56.6	69.3	77.6	81.9	79.6	71.5	59.4	40.2	25.9	54.4
Min °F	2.7	9.3	21.2	33.5	45.8	54.8	59.3	56.8	48.0	36.9	23.2	9.2	33.4
Mean °F	12.2	19.0	30.8	45.1	57.6	66.2	70.6	68.2	59.8	48.2	31.7	17.6	43.9
HDD base 65	1638	1288	1059	599	267	72	24	41	186	523	999	1472	8168
CDD base 65	0	0	0	1	36	108	196	140	28	1	0	0	510

Temperature Extremes
Period of Record: 1908-2001

Month	High Mean°F	Year	Low Mean°F	Year	1-Day Max°F	Date	1-Day Min°F	Date
JAN	25.6	1990	0.1	1977	53	01-24-1981	-37	01-19-1994
FEB	31.0	1998	10.0	1989	59	02-18-1981	-37	02-02-1996
MAR	39.7	1968	19.6	1965	80	03-29-1986	-25	03-01-1962
APR	53.5	1977	37.8	1975	88	04-30-1952	3	04-04-1995
MAY	67.2	1977	51.6	1954	92	05-04-1949	19	05-03-1967
JUN	73.0	1988	60.1	1982	98	06-09-1985	33	06-04-1987
JUL	76.5	1955	64.0	1992	105	07-14-1995	38	07-07-1984
AUG	73.6	1955	64.0	1987	97	08-24-1948	36	08-20-1950
SEP	66.0	1908	53.0	1965	94	09-12-1908	22	09-26-1984
OCT	58.8	1963	41.6	1987	89	10-04-1997	12	10-31-1984
NOV	45.6	2001	23.5	1991	77	11-09-1999	-15	11-30-1964
DEC	28.7	1959	2.7	1983	63	12-02-1998	-40	12-19-1983

Annual	47.0	1973	38.5	1956	105	07-14-1995	-40	12-19-1983
Winter	25.0	1998	10.2	1977	63	12-02-1998	-40	12-19-1983
Spring	52.6	1977	39.5	1950	92	05-04-1949	-25	03-01-1962
Summer	72.8	1949	63.8	1992	105	07-14-1995	33	06-04-1987
Fall	53.3	1963	42.6	1985	94	09-12-1908	-15	11-30-1964

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	24.2	31.0	13.8
FEB	0.0	15.3	27.5	7.6
MAR	0.0	6.4	26.4	2.1
APR	0.0	0.4	14.5	0.0
MAY	0.0	0.0	2.1	0.0
JUN	2.2	0.0	0.0	0.0
JUL	4.2	0.0	0.0	0.0
AUG	1.3	0.0	0.0	0.0
SEP	0.3	0.0	1.4	0.0
OCT	0.0	0.1	11.3	0.0
NOV	0.0	7.4	24.6	1.2
DEC	0.0	21.4	30.6	8.7

Annual	7.9	75.4	171.0	33.5
Winter	0.0	60.8	89.0	30.1
Spring	0.0	6.9	42.8	2.1
Summer	7.9	0.0	0.0	0.0
Fall	0.3	7.6	37.8	1.2