Weather History for Mackinac Island, MI

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Week of August 18, 2013 through August 24, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 79 °F 76 °F 72 °F
Mean Temperature 74 °F 68 °F 63 °F
Min Temperature 69 °F 61 °F 54 °F
Degree Days  
Heating Degree Days (base 65) 2 0 0 2
Cooling Degree Days (base 65) 9 4 0 26
Growing Degree Days (base 50) 24 18 13 126
Dew Point  
Dew Point 67 °F 59 °F 46 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 17 mph 8 mph 0 mph
Gust Wind 29 mph 19 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.29 in 30.08 in 29.85 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Aug. 24, 2013 Rise Set
Actual Time 6:49 AM EDT 8:30 PM EDT
Civil Twilight 6:18 AM EDT 9:02 PM EDT
Nautical Twilight 5:39 AM EDT 9:40 PM EDT
Astronomical Twilight 4:58 AM EDT 10:22 PM EDT
Moon 10:07 PM EDT (8/24) 11:04 AM EDT (8/24)
Length of Visible Light 14h 44m
Length of Day
13h 41m
Waning Gibbous, 84% of the Moon is Illuminated
Aug 24
Waning Gibbous
Aug 28
Last Quarter
Sep 5
New
Sep 12
First Quarter
Sep 19
Full

Daily Weather History & Observations

2013 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  
18 74 66 59 62 56 50 87 67 42 30.21 30.15 30.08 10 10 10 15 8 18 0.00  
19 74 68 62 63 59 55 84 73 60 30.08 30.02 29.97 10 10 10 16 9 24 0.00  
20 77 72 68 65 63 60 87 73 60 30.04 30.01 29.97 10 10 10 15 10 25 0.00  
21 79 74 69 67 64 62 85 73 65 30.01 29.94 29.85 10 10 10 17 10 29 0.00 Rain
22 78 68 59 65 58 46 97 71 33 30.12 30.02 29.92 10 10 5 14 8 22 0.00  
23 72 63 54 58 54 49 97 74 47 30.24 30.19 30.12 10 10 10 9 6 - 0.00  
24 76 65 54 61 56 52 94 70 43 30.29 30.25 30.20 10 10 10 9 6 - 0.00