Weather History for Mackinac Island, MI

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Month of August, 2014

  Max Avg Min Sum
Temperature  
Max Temperature 79 °F 70 °F 62 °F
Mean Temperature 69 °F 63 °F 56 °F
Min Temperature 64 °F 56 °F 47 °F
Degree Days  
Heating Degree Days (base 65) 10 3 0 96
Cooling Degree Days (base 65) 4 1 0 20
Growing Degree Days (base 50) 19 13 6 399
Dew Point  
Dew Point 71 °F 57 °F 40 °F
Precipitation  
Precipitation 0.45 in 0.03 in 0.00 in 0.94 in
Snowdepth - - - -
Wind  
Wind 20 mph 6 mph 0 mph
Gust Wind 28 mph 18 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.20 in 30.00 in 29.67 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Aug. 10, 2014 Rise Set
Actual Time 6:32 AM EDT 8:54 PM EDT
Civil Twilight 5:58 AM EDT 9:27 PM EDT
Nautical Twilight 5:17 AM EDT 10:09 PM EDT
Astronomical Twilight 4:30 AM EDT 10:55 PM EDT
Moon 8:36 PM EDT (8/10) 6:26 AM EDT (8/10)
Length of Visible Light 15h 28m
Length of Day
14h 22m
Full, 100% of the Moon is Illuminated
Aug 10
Full
Aug 10
Full
Aug 17
Last Quarter
Aug 25
New
Sep 2
First Quarter

Weather History Calendar

Precipitation Actual month total 0.94 Average Month Total: 2.26
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Fog
Actual:
74 | 57 0.00
Average:
72 | 58 0.08
Scattered Clouds
Actual:
75 | 56 0.00
Average:
72 | 58 0.07
Scattered Clouds
Actual:
77 | 58 0.00
Average:
71 | 58 0.08
Fog
Actual:
71 | 52 0.00
Average:
71 | 58 0.07
Clear
Actual:
74 | 53 0.00
Average:
71 | 58 0.07
Clear
Actual:
73 | 53 0.00
Average:
71 | 58 0.07
Clear
Actual:
77 | 53 0.00
Average:
71 | 58 0.07
Clear
Actual:
77 | 57 0.00
Average:
71 | 58 0.08
Clear
Actual:
79 | 59 0.00
Average:
71 | 57 0.08
Clear
Actual:
75 | 61 0.00
Average:
71 | 57 0.07
Rain
Actual:
70 | 64 0.09
Average:
71 | 57 0.07
Rain
Actual:
64 | 53 0.45
Average:
71 | 57 0.07
Partly Cloudy
Actual:
67 | 52 0.17
Average:
70 | 57 0.08
Clear
Actual:
64 | 47 0.06
Average:
70 | 57 0.08
Clear
Actual:
66 | 48 0.04
Average:
70 | 57 0.07
Rain
Actual:
70 | 55 0.02
Average:
70 | 57 0.07
Partly Cloudy
Actual:
65 | 54 0.01
Average:
70 | 57 0.08
Rain
Actual:
62 | 53 0.01
Average:
70 | 57 0.08
Rain
Actual:
67 | 57 0.01
Average:
70 | 57 0.08
Rain
Actual:
64 | 58 0.01
Average:
70 | 57 0.08
Partly Cloudy
Actual:
71 | 59 0.01
Average:
70 | 57 0.08
Fog
Actual:
70 | 59 0.00
Average:
70 | 57 0.08
Rain
Actual:
68 | 60 0.01
Average:
70 | 57 0.07
Fog
Actual:
66 | 61 0.01
Average:
70 | 56 0.07
Rain
Actual:
75 | 61 0.01
Average:
70 | 56 0.07
Partly Cloudy
Actual:
69 | 54 0.01
Average:
70 | 56 0.07
Rain
Actual:
66 | 48 0.00
Average:
70 | 56 0.06
Scattered Clouds
Actual:
64 | 47 0.00
Average:
70 | 56 0.06
Rain
Actual:
67 | 52 0.01
Average:
70 | 56 0.07
Rain
Actual:
74 | 64 0.00
Average:
70 | 56 0.06
Rain
Actual:
64 | 57 0.01
Average:
70 | 56 0.07
 

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

2014 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Aug high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 74 66 57 61 55 48 100 78 41 30.13 30.06 29.99 10 7 0 9 3 - 0.00 Fog
2 75 66 56 57 51 46 96 62 37 30.17 30.13 30.10 10 10 10 9 6 - 0.00  
3 77 68 58 62 59 51 98 75 43 30.11 30.08 30.02 10 10 7 12 6 16 0.00  
4 71 62 52 60 57 53 100 86 61 30.11 30.08 30.05 10 8 0 10 6 - 0.00 Fog
5 74 64 53 57 54 50 100 73 41 30.12 30.09 30.06 10 10 10 10 5 - 0.00  
6 73 63 53 58 53 48 96 73 48 30.10 30.07 30.05 10 10 10 10 5 - 0.00  
7 77 65 53 59 54 49 100 71 37 30.16 30.12 30.09 10 9 3 7 4 - 0.00  
8 77 67 57 63 57 54 99 71 48 30.19 30.15 30.12 10 10 7 6 1 - 0.00  
9 79 69 59 63 57 51 98 69 37 30.20 30.16 30.13 10 10 7 7 3 - 0.00  
10 75 68 61 62 58 52 90 72 53 30.16 30.11 30.03 10 10 1 15 6 18 0.00  
11 70 67 64 66 61 56 98 82 69 30.03 29.93 29.80 10 10 5 12 7 18 0.09 Rain
12 64 58 53 64 59 52 100 98 93 29.80 29.72 29.67 10 8 2 16 12 25 0.45 Rain
13 67 60 52 53 50 46 94 74 54 30.00 29.89 29.80 10 10 10 17 13 28 0.17  
14 64 56 47 47 44 40 97 69 45 30.05 30.01 29.98 10 10 10 15 8 22 0.06  
15 66 57 48 57 49 43 83 72 53 29.99 29.94 29.85 10 10 10 17 9 23 0.04  
16 70 63 55 64 58 52 100 83 64 29.94 29.81 29.72 10 9 3 15 9 23 0.02 Rain
17 65 60 54 56 54 54 100 86 66 30.08 30.03 29.94 10 10 10 12 4 - 0.01  
18 62 58 53 58 56 53 100 96 81 30.02 29.92 29.80 10 9 0 15 8 24 0.01 Fog , Rain
19 67 62 57 66 59 56 100 98 93 29.79 29.72 29.69 10 6 0 14 9 23 0.01 Fog , Rain
20 64 61 58 64 61 58 100 100 100 29.94 29.83 29.73 10 2 0 8 4 - 0.01 Fog , Rain
21 71 65 59 64 62 59 100 94 75 30.00 29.98 29.93 10 9 3 8 3 - 0.01  
22 70 64 59 65 63 60 100 93 79 30.06 30.01 29.96 10 8 0 8 5 - 0.00 Fog
23 68 64 60 66 63 61 100 99 92 30.13 30.10 30.05 10 5 0 14 7 20 0.01 Fog , Rain
24 66 64 61 64 63 61 100 99 92 30.15 30.12 30.08 10 6 0 16 9 24 0.01 Fog
25 75 68 61 71 66 61 100 97 87 30.08 30.00 29.93 10 7 2 10 6 16 0.01 Rain
26 69 62 54 68 59 50 100 80 61 30.10 30.03 29.93 10 10 5 20 8 24 0.01  
27 66 57 48 55 50 45 97 76 52 30.17 30.14 30.10 10 10 7 16 7 22 0.00 Rain
28 64 56 47 52 48 45 99 77 51 30.20 30.16 30.11 10 10 10 8 5 - 0.00  
29 67 60 52 66 58 50 100 92 79 30.12 30.01 29.89 10 9 3 14 8 21 0.01 Rain
30 74 69 64 70 67 64 100 97 85 29.88 29.79 29.73 10 7 0 14 7 23 0.00 Fog , Rain
31 64 60 57 64 61 58 100 97 88 29.93 29.88 29.77 10 9 0 15 8 18 0.01 Fog , Rain