Weather Averages Decatur, IL

Weather Averages for
Decatur, IL

Latitude: 39°50'N, Longitude: 88°52'W, Elevation: 680.0 ft, Distance: 3.11 mi

	Unit	Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average temperature over 60 years	°F	53	28	31	41	51	62	71	77	75	68	57	43	31
Average high temperature over 60 years	°F	64	37	39	51	64	75	84	89	87	80	69	53	39
Average low temperature over 60 years	°F	43	19	21	31	41	51	60	64	62	55	44	33	23
Highest recorded temperature over 67 years	°F	113	73	75	89	93	100	105	113	105	104	96	82	69
Lowest recorded temperature over 66 years	°F	-25	-22	-25	-7	15	24	32	44	39	19	12	-2	-18
Average number of rainy days over 73 years	days	67.8	5.1	4.7	6.3	6.7	6.8	6.9	5.8	5.8	5.7	4.8	4.3	4.9
Average number of days above 90°F over 10 years	days	42.3	-	-	-	-	1	9	14	11	7	0.3	-	-
Average precipitation over 73 years	in	36.9	2.3	2.0	3.2	3.8	4.1	4.1	3.2	3.2	3.6	2.8	2.5	2.2
Average relative humidity over 12 years	%	70	76	75	71	66	66	68	70	72	65	65	70	75
Average dew point over 12 years	°F	42	21	24	28	39	50	60	64	64	53	43	31	24
Average number of days below 32°F over 10 years	days	120.3	28	22	20	6	0.3	-	-	-	-	4	16	24
Average number of days below 0°F over 12 years	days	4.9	1.9	1.2	0.3	-	-	-	-	-	-	-	0.2	1.3
Average snowfall over 64 years	in	20.1	5.0	4.8	4.0	0.4	0.1	-	-	-	-	0.1	1.5	4.2

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

Latitude: 39°49'N, Longitude: 89°1'W, Elevation: 620.0 ft, Distance: 5.57 mi

Latitude: 39°22'N, Longitude: 89°4'W, Elevation: 700.0 ft, Distance: 31.41 mi

Latitude: 39°25'N, Longitude: 88°35'W, Elevation: 685.0 ft, Distance: 32.08 mi

Latitude: 39°47'N, Longitude: 88°16'W, Elevation: 653.0 ft, Distance: 34.34 mi

Back to current weather in Decatur, IL »