Weather History for Mackinac Island, MI

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Month of September, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 77 °F 64 °F 52 °F
Mean Temperature 70 °F 57 °F 46 °F
Min Temperature 64 °F 50 °F 39 °F
Degree Days  
Heating Degree Days (base 65) 20 8 0 249
Cooling Degree Days (base 65) 6 0 0 12
Growing Degree Days (base 50) 20 7 0 221
Dew Point  
Dew Point 70 °F 51 °F 32 °F
Precipitation  
Precipitation 0.46 in 0.06 in 0.00 in 1.83 in
Snowdepth - - - -
Wind  
Wind 21 mph 8 mph 0 mph
Gust Wind 29 mph 19 mph 12 mph
Sea Level Pressure  
Sea Level Pressure 30.43 in 30.01 in 29.64 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 07, 2013 Rise Set
Actual Time 7:07 AM EDT 8:04 PM EDT
Civil Twilight 6:36 AM EDT 8:35 PM EDT
Nautical Twilight 6:00 AM EDT 9:11 PM EDT
Astronomical Twilight 5:22 AM EDT 9:49 PM EDT
Moon 9:30 AM EDT (9/7) 8:51 PM EDT (9/7)
Length of Visible Light 13h 58m
Length of Day
12h 57m
Waxing Crescent, 5% of the Moon is Illuminated
Sep 7
Waxing Crescent
Sep 12
First Quarter
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New

Weather History Calendar

Precipitation Actual month total 1.83 Average Month Total: 2.90
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Rain
Actual:
69 | 59 0.06
Average:
70 | 56 0.07
Overcast
Actual:
58 | 53 0.00
Average:
69 | 56 0.07
Clear
Actual:
67 | 53 0.00
Average:
69 | 56 0.07
Scattered Clouds
Actual:
66 | 49 0.12
Average:
69 | 56 0.08
Clear
Actual:
61 | 45 0.00
Average:
69 | 56 0.08
Rain
Actual:
68 | 55 0.05
Average:
68 | 56 0.08
Rain
Actual:
73 | 60 0.42
Average:
68 | 55 0.08
Clear
Actual:
62 | 54 0.00
Average:
68 | 55 0.09
Rain
Actual:
67 | 56 0.00
Average:
67 | 54 0.10
Rain
Actual:
77 | 64 0.23
Average:
67 | 54 0.10
Rain
Actual:
71 | 64 0.46
Average:
67 | 54 0.10
Mostly Cloudy
Actual:
65 | 50 0.01
Average:
67 | 53 0.10
Partly Cloudy
Actual:
56 | 43 0.00
Average:
66 | 53 0.10
Scattered Clouds
Actual:
63 | 42 0.00
Average:
66 | 53 0.11
Rain
Actual:
61 | 47 0.19
Average:
65 | 52 0.10
Scattered Clouds
Actual:
54 | 41 0.00
Average:
65 | 52 0.10
Clear
Actual:
57 | 42 0.00
Average:
64 | 51 0.11
Rain
Actual:
66 | 52 0.01
Average:
63 | 51 0.12
Partly Cloudy
Actual:
72 | 61 0.00
Average:
63 | 50 0.12
Rain
Actual:
70 | 56 0.12
Average:
62 | 49 0.11
Rain
Actual:
56 | 44 0.02
Average:
62 | 49 0.11
Partly Cloudy
Actual:
52 | 39 0.00
Average:
61 | 49 0.11
Clear
Actual:
56 | 40 0.00
Average:
61 | 48 0.11
Clear
Actual:
58 | 47 0.00
Average:
60 | 48 0.10
Fog
Actual:
61 | 45 0.00
Average:
60 | 47 0.10
Clear
Actual:
64 | 44 0.00
Average:
59 | 47 0.10
Clear
Actual:
66 | 47 0.00
Average:
59 | 46 0.09
Scattered Clouds
Actual:
69 | 55 0.00
Average:
58 | 45 0.09
Rain
Actual:
66 | 50 0.14
Average:
57 | 45 0.10
Clear
Actual:
66 | 47 0.00
Average:
57 | 44 0.10
 

Calendar Legend

Sunny
Clear
Mostly Cloudy
Partly Sunny
Partly Cloudy
Mostly Sunny
Cloudy Rain Snow
Hail
Flurries
Thunderstorms Hazy
Fog
Sleet '?' denotes
'chance of'
Unknown

Daily Weather History & Observations

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 69 64 59 67 63 58 97 93 86 29.86 29.77 29.68 10 8 3 16 8 23 0.06 Rain
2 58 56 53 57 51 49 94 85 77 29.89 29.83 29.75 10 10 4 17 13 26 0.00  
3 67 60 53 60 53 50 90 77 58 29.98 29.93 29.89 10 10 10 17 11 28 0.00  
4 66 58 49 61 50 39 88 69 44 30.15 30.02 29.88 10 10 10 15 11 26 0.12  
5 61 53 45 50 43 35 90 67 46 30.32 30.25 30.15 10 10 10 13 7 16 0.00  
6 68 62 55 63 54 45 97 76 64 30.22 30.11 29.95 10 10 7 15 8 23 0.05 Rain
7 73 66 60 69 65 57 99 94 84 30.04 29.91 29.86 10 7 2 14 5 22 0.42 Rain
8 62 58 54 57 51 48 96 78 61 30.19 30.12 30.05 10 10 10 12 7 20 0.00  
9 67 62 56 65 56 51 96 84 73 30.05 29.92 29.73 10 10 10 13 8 22 0.00 Rain
10 77 70 64 70 66 63 98 87 70 29.93 29.81 29.73 10 9 4 17 9 26 0.23 Rain
11 71 68 64 67 65 63 98 94 83 29.96 29.92 29.88 10 10 2 15 8 23 0.46 Rain
12 65 58 50 65 53 44 99 83 65 30.06 29.95 29.87 10 10 7 17 9 29 0.01  
13 56 50 43 43 39 35 87 68 48 30.19 30.14 30.06 10 10 10 17 11 23 0.00  
14 63 52 42 52 48 41 98 80 64 30.13 30.07 29.98 10 10 10 17 6 26 0.00  
15 61 54 47 58 54 43 97 88 76 30.21 30.03 29.95 10 10 3 15 9 22 0.19 Rain
16 54 48 41 42 37 33 83 69 47 30.43 30.37 30.23 10 10 7 16 9 20 0.00  
17 57 50 42 53 44 35 97 76 60 30.40 30.33 30.17 10 9 5 10 7 16 0.00  
18 66 59 52 58 52 46 93 79 66 30.17 30.05 29.94 10 10 5 12 7 - 0.01 Rain
19 72 66 61 67 60 56 95 81 69 29.95 29.88 29.76 10 10 5 12 6 18 0.00  
20 70 64 56 67 64 54 100 96 86 29.76 29.68 29.64 10 7 1 20 10 28 0.12 Rain
21 56 50 44 55 46 40 97 83 63 29.88 29.77 29.70 10 10 7 16 9 24 0.02 Rain
22 52 46 39 42 39 35 95 78 60 30.10 30.03 29.89 10 10 5 12 6 20 0.00  
23 56 48 40 47 43 37 99 81 52 30.21 30.16 30.11 10 10 4 10 5 - 0.00  
24 58 52 47 50 48 46 94 82 70 30.17 30.11 30.03 10 10 10 14 7 17 0.00  
25 61 53 45 54 46 32 100 79 34 30.06 30.04 30.02 10 9 0 10 5 - 0.00 Fog
26 64 54 44 52 47 44 100 75 50 30.14 30.11 30.04 10 9 2 10 5 16 0.00  
27 66 56 47 56 50 46 95 72 53 30.22 30.18 30.14 10 10 10 13 7 18 0.00  
28 69 62 55 57 53 49 91 72 59 30.17 30.05 29.84 10 10 10 15 10 24 0.00  
29 66 58 50 60 52 49 98 81 60 30.01 29.95 29.82 10 10 2 21 10 26 0.14 Rain
30 66 56 47 52 48 40 99 78 40 30.01 29.94 29.85 10 10 7 9 5 - 0.00