Weather Averages for Allison, IL

7-day Forecast / 10-day Forecast

Latitude: 38°45'N, Longitude: 87°36'W, Elevation: 428.0 ft, Distance: 0.76 mi Allison, IL Averages »

	Unit	Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average temperature over 4 years	°F	55	31	36	44	53	64	75	78	77	68	55	43	28
Average high temperature over 4 years	°F	64	39	44	55	64	75	86	89	87	78	69	51	37
Average low temperature over 4 years	°F	44	23	26	34	44	55	66	66	66	57	44	35	21
Highest recorded temperature over 4 years	°F	105	73	73	80	82	93	102	100	105	100	87	77	60
Lowest recorded temperature over 4 years	°F	-5	-2	0	-2	23	34	46	51	48	37	28	19	-5
Average number of rainy days over 17 years	days	78	7.4	6.7	6.8	7	7.1	7.3	7.2	6.1	5.3	4.8	6.2	6.1
Average number of days above 90°F over 4 years	days	49.9	-	-	-	-	2.3	11.6	18	15	3	-	-	-
Average precipitation over 17 years	in	45.8	3.9	3.4	4.0	4.5	4.9	4.5	4.4	3.4	3.3	2.9	3.9	2.9
Average relative humidity over 4 years	%	72	78	74	71	69	73	72	64	69	75	69	75	76
Average dew point over 4 years	°F	44	24	28	35	43	55	64	64	64	59	44	36	21
Average number of days below 32°F over 4 years	days	107.2	27.4	21.7	14.7	3.7	-	-	-	-	-	0.3	12.7	26.7
Average number of days below 0°F over 4 years	days	1.5	0.2	0.3	0.7	-	-	-	-	-	-	-	-	0.3

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