Weather Report and Forecast for
Mackinac Island, MI

Monday, May 28th 2012, 5:20am EDT

7-day Forecast / 10-day Forecast

Latitude: 45°39'N, Longitude: 84°28'W, Elevation: 590.0 ft, Distance: 16.75 mi Mackinac Island, MI Averages »

	Unit	Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average temperature over 30 years	°F	42	17	17	26	39	51	60	67	65	58	47	35	23
Average high temperature over 30 years	°F	51	25	26	36	48	61	71	77	75	67	55	42	30
Average low temperature over 30 years	°F	33	9	7	17	30	40	50	57	55	49	38	28	16
Highest recorded temperature over 106 years	°F	104	59	59	77	89	91	96	102	104	96	89	73	64
Lowest recorded temperature over 106 years	°F	-38	-29	-38	-20	-5	17	30	35	28	24	15	-5	-18
Average number of days above 90°F over 30 years	days	4.6	-	-	-	-	-	0.7	2	1.3	0.6	-	-	-
Average precipitation over 30 years	in	28.5	1.5	1.2	1.7	2.3	2.5	2.6	2.8	3.0	3.9	2.5	2.4	2.1
Average number of days below 32°F over 30 years	days	165	30	27	28	18	4.6	0.1	-	-	0.7	6.8	21	29
Average number of days below 0°F over 30 years	days	19	6.5	7.9	3	-	-	-	-	-	-	-	-	1.7
Average snowfall over 30 years	in	81.8	22.6	14.4	11.8	2.7	-	-	-	-	-	0.4	7.1	23.0
Most rain reported in a day over 106 years	in	3.2	2.6	2.2	2.9	2.9	2.9	3.0	3.2	3.1	2.5	2.1	2.0	3.2
Most rain reported in a month over 106 years	in	43.0	4.8	4.1	6.8	6.1	7.3	7.5	7.9	7.6	9.4	6.2	5.6	5.7
Least rain reported in a month over 106 years	in	8.4	0.3	0.2	0.1	0.1	0.3	0.4	0.3	0.2	-	0.2	0.4	0.3
Heating degree days over 30 years	days	8147	1452	1319	1122	741	409	149	33	59	219	525	855	1264
Cooling degree days over 30 years	days	295	-	-	-	-	6	38	124	95	29	3	-	-
Most snow reported in a month over 106 years	in	185.5	44.0	40.0	40.5	19.1	7.3	-	-	-	0.5	12.6	26.5	52.0

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

Average temperature of May: 51°F. Average high temperature: 61°F. Average low temperature: 40°F. Mackinac Island, MI Averages »

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