Weather Report and Forecast for
Mount Vernon, IL

Sunday, May 27th 2012, 1:31pm CDT

7-day Forecast / 10-day Forecast

Latitude: 38°20'N, Longitude: 88°52'W, Elevation: 490.0 ft, Distance: 2.51 mi Mount Vernon, IL Averages »

	Unit	Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average temperature over 30 years	°F	53	27	31	43	54	64	73	77	75	68	56	44	32
Average high temperature over 30 years	°F	64	37	42	53	65	75	84	88	86	79	68	54	42
Average low temperature over 30 years	°F	42	17	21	32	43	52	61	65	63	55	43	34	23
Highest recorded temperature over 102 years	°F	114	75	78	91	91	98	105	114	111	105	96	86	78
Lowest recorded temperature over 102 years	°F	-22	-20	-22	-9	17	28	36	46	42	23	17	-5	-18
Average number of days above 90°F over 30 years	days	50	-	-	-	0.1	1.8	9.7	17	15	6.9	0.5	-	-
Average precipitation over 30 years	in	41.9	2.2	2.6	4.2	4.2	4.4	3.4	4.0	3.2	3.3	2.9	4.0	3.6
Average number of days below 32°F over 30 years	days	104	25	21	15	3.5	0.1	-	-	-	0.1	3.2	13	23
Average number of days below 0°F over 30 years	days	3.5	1.8	0.9	0.1	-	-	-	-	-	-	-	-	0.7
Average snowfall over 30 years	in	16.2	5.9	5.1	2.3	0.4	-	-	-	-	-	-	0.5	3.5
Most rain reported in a day over 102 years	in	6.2	3.7	4.3	3.9	4.8	5.0	4.1	4.4	6.2	4.3	4.4	4.4	3.0
Most rain reported in a month over 102 years	in	63.1	11.5	6.6	12.0	9.9	12.9	10.9	10.8	14.4	10.2	13.9	13.1	10.2
Least rain reported in a month over 102 years	in	23.4	-	0.2	-	0.9	0.4	0.1	0.1	0.3	0.2	-	0.2	0.3
Heating degree days over 30 years	days	4943	1121	896	640	304	102	8	1	2	51	274	578	966
Cooling degree days over 30 years	days	1272	-	-	3	25	91	265	379	319	159	29	2	-
Most snow reported in a month over 102 years	in	45.0	26.0	21.5	17.7	6.0	-	-	-	-	-	5.0	6.6	13.3

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

Average temperature of May: 64°F. Average high temperature: 75°F. Average low temperature: 52°F. Mount Vernon, IL Averages »

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