Weather Averages for Palatine, IL

7-day Forecast / 10-day Forecast

Latitude: 42°0'N, Longitude: 87°54'W, Elevation: 658.0 ft, Distance: 8.84 mi Palatine, IL Averages »

	Unit	Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average temperature over 30 years	°F	48	21	25	37	48	58	68	73	71	64	52	39	26
Average high temperature over 30 years	°F	58	28	33	45	58	70	79	83	81	74	63	48	34
Average low temperature over 30 years	°F	39	12	17	28	38	47	57	62	61	53	42	31	19
Highest recorded temperature over 39 years	°F	104	64	71	87	91	93	104	104	100	98	91	78	71
Lowest recorded temperature over 39 years	°F	-27	-27	-18	-7	6	24	36	39	41	28	17	1	-25
Average number of days above 90°F over 30 years	days	17	-	-	-	-	0.7	3.8	6.3	4.4	1.6	0.1	-	-
Average precipitation over 30 years	in	35.8	1.5	1.4	2.7	3.6	3.3	3.8	3.7	4.2	3.8	2.4	2.9	2.5
Average number of days below 32°F over 30 years	days	130	28	25	21	7.4	0.8	-	-	-	0.3	4.9	17	27
Average number of days below 0°F over 30 years	days	12	6.2	3	0.2	-	-	-	-	-	-	-	-	2.6
Average snowfall over 30 years	in	38.7	10.7	8.4	6.5	1.8	0.1	-	-	-	-	0.5	1.9	8.8
Most rain reported in a day over 39 years	in	6.5	2.0	1.5	1.8	2.4	3.5	3.1	2.9	6.5	2.9	4.3	2.9	4.5
Most rain reported in a month over 39 years	in	49.4	4.1	3.5	5.9	7.7	7.1	10.0	8.3	17.1	11.4	7.4	8.2	8.6
Least rain reported in a month over 39 years	in	21.8	0.1	0.1	0.6	1.0	0.3	1.0	1.2	0.5	-	0.2	0.7	0.2
Heating degree days over 30 years	days	6601	1363	1115	870	505	239	51	8	15	112	394	745	1184
Cooling degree days over 30 years	days	798	-	-	1	10	48	152	261	222	91	13	-	-
Most snow reported in a month over 39 years	in	75.0	34.3	26.2	24.7	11.1	1.6	-	-	-	-	6.6	10.4	35.3

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