Weather Averages for Barstow, IL

7-day Forecast / 10-day Forecast

Latitude: 41°34'N, Longitude: 90°25'W, Elevation: 577.0 ft, Distance: 4.39 mi Barstow, IL Averages »

	Unit	Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average temperature over 30 years	°F	49	20	24	36	50	61	71	75	72	65	53	39	25
Average high temperature over 30 years	°F	58	28	33	45	59	71	80	84	82	74	63	47	33
Average low temperature over 30 years	°F	40	11	16	28	40	51	61	66	63	55	44	31	17
Highest recorded temperature over 49 years	°F	102	62	68	82	87	93	100	102	102	96	89	78	69
Lowest recorded temperature over 49 years	°F	-27	-23	-27	-14	10	30	42	48	43	32	17	-4	-20
Average number of days above 90°F over 30 years	days	16	-	-	-	-	0.2	3.4	6.6	4.4	1	-	-	-
Average precipitation over 30 years	in	33.8	1.1	0.9	2.3	3.3	3.7	4.3	3.9	4.2	3.4	2.7	2.2	1.9
Average number of days below 32°F over 30 years	days	127	29	25	21	5.7	0.2	-	-	-	-	2.5	16	28
Average number of days below 0°F over 30 years	days	14	6.6	3.7	0.3	-	-	-	-	-	-	-	0.1	2.9
Average snowfall over 30 years	in	18.7	6.0	4.8	3.4	0.8	-	-	-	-	-	0.2	0.7	4.7
Most rain reported in a day over 59 years	in	7.5	2.0	1.5	2.1	2.3	3.1	7.5	3.1	4.3	4.6	2.5	1.9	3.4
Most rain reported in a month over 59 years	in	57.2	4.3	2.8	5.7	7.9	9.7	17.8	14.2	13.7	12.2	7.3	6.8	5.2
Least rain reported in a month over 59 years	in	18.7	0.1	-	0.3	0.8	0.2	0.9	0.3	0.6	0.4	-	0.3	0.1
Heating degree days over 30 years	days	6377	1378	1122	863	443	156	15	2	7	87	351	746	1207
Cooling degree days over 30 years	days	998	-	-	-	9	66	210	332	262	103	16	-	-
Most snow reported in a month over 59 years	in	45.0	19.0	19.4	17.5	9.0	-	-	-	-	-	3.5	8.1	15.0

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