Weather Averages for Alton, IA

7-day Forecast / 10-day Forecast

Latitude: 43°2'N, Longitude: 96°9'W, Elevation: 1360.0 ft, Distance: 8.20 mi Alton, IA Averages »

	Unit	Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average temperature over 30 years	°F	46	15	21	34	48	60	69	73	71	62	50	34	20
Average high temperature over 30 years	°F	58	25	31	44	61	73	82	86	83	75	63	44	29
Average low temperature over 30 years	°F	35	5	11	23	35	47	57	61	58	49	37	24	10
Highest recorded temperature over 98 years	°F	105	64	68	87	93	104	105	102	100	102	91	75	62
Lowest recorded temperature over 98 years	°F	-36	-36	-32	-18	0	17	33	37	37	21	8	-20	-29
Average number of days above 90°F over 30 years	days	13	-	-	-	0.1	0.7	3.1	4.6	3.1	0.9	0.1	-	-
Average precipitation over 30 years	in	27.3	0.6	0.7	1.9	2.5	3.4	4.4	3.5	3.3	3.0	2.0	1.1	0.8
Average number of days below 32°F over 30 years	days	93	18	16	14	7.1	1.1	-	-	-	0.6	5.1	13	18
Average number of days below 0°F over 30 years	days	15	6.4	4.3	0.9	-	-	-	-	-	-	-	0.4	3.4
Average snowfall over 30 years	in	35.0	6.5	5.9	8.0	2.0	-	-	-	-	-	1.2	4.3	7.3
Most rain reported in a day over 98 years	in	6.7	1.2	1.2	2.6	3.9	3.5	4.3	6.5	6.7	6.0	2.8	1.8	1.3
Most rain reported in a month over 98 years	in	39.7	2.3	3.4	4.7	9.1	8.5	11.8	12.3	10.0	16.1	5.8	5.2	3.1
Least rain reported in a month over 98 years	in	14.2	-	-	-	0.3	0.3	0.2	0.7	0.5	0.2	-	-	-
Heating degree days over 30 years	days	7365	1535	1229	962	497	194	29	5	19	148	446	909	1392
Cooling degree days over 30 years	days	795	-	-	-	8	51	177	279	204	69	7	-	-
Most snow reported in a month over 98 years	in	71.2	21.6	22.0	23.4	13.7	0.2	-	-	-	-	8.0	17.0	22.3

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