Weather Report and Forecast for
Winthrop Harbor, IL

Sunday, May 27th 2012, 3:03pm CDT

7-day Forecast / 10-day Forecast

Latitude: 42°32'N, Longitude: 87°48'W, Elevation: 600.0 ft, Distance: 4.03 mi Winthrop Harbor, IL Averages »

	Unit	Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average temperature over 30 years	°F	46	19	24	34	43	53	63	69	69	61	50	38	25
Average high temperature over 30 years	°F	54	28	32	41	52	62	73	78	78	70	59	46	33
Average low temperature over 30 years	°F	37	11	16	26	35	44	53	60	60	52	41	30	17
Highest recorded temperature over 49 years	°F	102	64	66	82	89	93	102	102	100	100	89	80	64
Lowest recorded temperature over 49 years	°F	-31	-31	-23	-9	10	26	33	41	39	30	19	-5	-29
Average number of days above 90°F over 30 years	days	8.7	-	-	-	-	0.2	1.9	3.4	2.6	0.7	-	-	-
Average precipitation over 30 years	in	33.2	1.3	1.0	2.2	3.4	3.0	3.4	4.0	3.9	3.9	2.5	2.5	2.0
Average number of days below 32°F over 30 years	days	135	28	26	23	9	0.6	-	-	-	0.2	3.7	17	27
Average number of days below 0°F over 30 years	days	12	6.3	2.9	0.2	-	-	-	-	-	-	-	0.1	2.5
Average snowfall over 30 years	in	39.1	12.0	9.5	6.6	1.2	-	-	-	-	-	0.1	1.3	8.4
Most rain reported in a day over 53 years	in	5.7	2.6	1.2	2.2	2.4	2.6	3.6	3.3	4.9	2.8	5.7	2.4	2.7
Most rain reported in a month over 53 years	in	46.1	4.7	3.7	5.5	7.6	7.6	9.1	8.6	12.7	11.7	7.0	6.6	5.2
Least rain reported in a month over 53 years	in	18.7	0.1	-	0.3	0.7	0.2	0.8	0.7	0.3	-	0.1	0.6	0.2
Heating degree days over 30 years	days	7260	1393	1153	962	636	372	114	22	24	141	441	784	1218
Cooling degree days over 30 years	days	449	-	-	-	2	12	73	163	148	46	5	-	-
Most snow reported in a month over 53 years	in	71.2	37.5	37.1	26.5	9.0	-	-	-	-	-	1.5	8.9	18.5

Check weather averages for nearby locations (some locations might offer more data):

Average temperature of May: 53°F. Average high temperature: 62°F. Average low temperature: 44°F. Winthrop Harbor, IL Averages »

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