Weather Report and Forecast for
Decorah, IA

Sunday, May 27th 2012, 6:52am CDT

7-day Forecast / 10-day Forecast

Latitude: 43°17'N, Longitude: 91°48'W, Elevation: 860.0 ft, Distance: 5.54 mi Decorah, IA Averages »

	Unit	Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average temperature over 30 years	°F	46	15	20	33	47	59	68	72	70	62	50	35	20
Average high temperature over 30 years	°F	57	24	30	42	59	71	80	84	82	73	61	44	29
Average low temperature over 30 years	°F	36	5	10	23	36	47	56	61	59	50	40	27	12
Highest recorded temperature over 49 years	°F	104	55	62	84	93	93	100	102	104	100	93	73	62
Lowest recorded temperature over 49 years	°F	-43	-43	-41	-32	5	21	33	41	35	21	10	-16	-36
Average number of days above 90°F over 30 years	days	14	-	-	-	0.1	0.4	3.2	5.2	3.9	1	0.1	-	-
Average precipitation over 30 years	in	32.0	0.7	0.8	1.9	3.4	3.8	4.3	4.0	4.0	3.9	2.3	1.7	1.2
Average number of days below 32°F over 30 years	days	158	30	27	25	12	1.7	-	-	-	1.1	8.8	22	30
Average number of days below 0°F over 30 years	days	28	12	7.3	1.8	-	-	-	-	-	-	-	0.8	6.1
Average snowfall over 30 years	in	36.4	7.7	7.2	7.5	1.6	-	-	-	-	-	0.2	3.4	9.7
Most rain reported in a day over 49 years	in	6.1	1.3	1.5	2.0	3.7	3.0	5.0	6.1	3.6	4.8	1.8	2.6	1.4
Most rain reported in a month over 49 years	in	48.5	3.7	2.6	4.0	8.5	7.7	11.8	10.7	10.1	11.2	4.5	4.9	2.3
Least rain reported in a month over 49 years	in	19.3	0.1	-	0.2	0.7	1.2	0.6	1.2	0.3	0.3	-	-	0.1
Heating degree days over 30 years	days	7542	1561	1265	998	537	221	42	8	22	160	458	887	1383
Cooling degree days over 30 years	days	685	-	-	-	7	43	138	243	185	61	8	-	-
Most snow reported in a month over 49 years	in	79.6	34.7	26.3	28.3	13.5	-	-	-	-	-	2.1	17.8	23.7

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

Average temperature of May: 59°F. Average high temperature: 71°F. Average low temperature: 47°F. Decorah, IA Averages »

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