Weather Report and Forecast for
Castleton, IL

Sunday, May 27th 2012, 10:31am CDT

7-day Forecast / 10-day Forecast

Latitude: 40°55'N, Longitude: 89°46'W, Elevation: 735.0 ft, Distance: 14.24 mi Castleton, IL Averages »

	Unit	Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average temperature over 30 years	°F	48	19	24	37	50	60	69	73	70	63	52	39	25
Average high temperature over 30 years	°F	59	29	34	47	61	71	81	84	82	76	64	49	34
Average low temperature over 30 years	°F	38	10	14	27	38	48	58	61	59	51	40	28	17
Highest recorded temperature over 35 years	°F	105	60	71	87	93	93	100	104	105	98	89	78	69
Lowest recorded temperature over 35 years	°F	-25	-25	-25	-7	5	21	35	44	36	26	12	-2	-25
Average number of days above 90°F over 30 years	days	19	-	-	-	0.1	0.6	4.5	7.1	5.3	1.6	-	-	-
Average precipitation over 30 years	in	36.5	1.5	1.3	3.1	3.8	4.1	3.9	3.7	3.5	3.9	2.8	2.7	2.3
Average number of days below 32°F over 30 years	days	139	28	25	21	8.4	0.8	-	-	-	0.7	7.4	19	28
Average number of days below 0°F over 30 years	days	15	7.2	4.3	0.3	-	-	-	-	-	-	-	0.1	3.5
Average snowfall over 30 years	in	22.2	6.2	5.2	3.1	0.9	-	-	-	-	-	0.2	1.6	5.7
Most rain reported in a day over 68 years	in	5.5	3.0	2.8	3.0	3.6	3.8	5.5	4.9	3.2	3.4	4.0	2.8	3.1
Most rain reported in a month over 68 years	in	50.2	5.8	4.1	8.8	7.8	11.9	11.0	12.6	8.9	14.1	9.1	10.6	6.6
Least rain reported in a month over 68 years	in	19.7	0.1	-	0.2	0.8	0.4	0.6	0.3	0.5	-	-	0.2	0.2
Heating degree days over 30 years	days	6282	1318	1096	824	412	175	28	6	14	106	380	738	1185
Cooling degree days over 30 years	days	810	-	-	1	11	54	180	265	199	86	14	-	-
Most snow reported in a month over 68 years	in	46.1	24.0	16.1	13.2	9.0	-	-	-	-	-	3.5	13.5	16.0

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

Average temperature of May: 60°F. Average high temperature: 71°F. Average low temperature: 48°F. Castleton, IL Averages »

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