Weather History for Ann Arbor, MI

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Month of August, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 89 °F 80 °F 69 °F
Mean Temperature 76 °F 68 °F 58 °F
Min Temperature 71 °F 57 °F 44 °F
Degree Days  
Heating Degree Days (base 65) 6 1 0 28
Cooling Degree Days (base 65) 12 4 0 124
Growing Degree Days (base 50) 26 18 8 558
Dew Point  
Dew Point 76 °F 59 °F 43 °F
Precipitation  
Precipitation 1.54 in 0.08 in 0.00 in 2.63 in
Snowdepth - - - -
Wind  
Wind 20 mph 4 mph 0 mph
Gust Wind 84 mph 32 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.32 in 30.04 in 29.76 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Aug. 30, 2013 Rise Set
Actual Time 6:58 AM EDT 8:11 PM EDT
Civil Twilight 6:29 AM EDT 8:40 PM EDT
Nautical Twilight 5:54 AM EDT 9:15 PM EDT
Astronomical Twilight 5:18 AM EDT 9:51 PM EDT
Moon 1:32 AM EDT (8/30) 4:29 PM EDT (8/30)
Length of Visible Light 14h 11m
Length of Day
13h 13m
Waning Crescent, 29% of the Moon is Illuminated
Aug 30
Waning Crescent
Sep 5
New
Sep 12
First Quarter
Sep 19
Full
Sep 26
Last Quarter

Weather History Calendar

Precipitation Actual month total 2.63 Average Month Total: 2.05
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Thunderstorm
Actual:
80 | 54 0.02
Average:
80 | 56 0.08
Rain
Actual:
73 | 48 0.00
Average:
79 | 56 0.08
Fog
Actual:
81 | 53 0.01
Average:
79 | 56 0.08
Scattered Clouds
Actual:
75 | 55 0.00
Average:
79 | 56 0.08
Partly Cloudy
Actual:
72 | 48 0.00
Average:
79 | 56 0.08
Rain
Actual:
79 | 63 0.05
Average:
79 | 56 0.07
Thunderstorm
Actual:
84 | 62 0.12
Average:
79 | 55 0.07
Partly Cloudy
Actual:
78 | 66 0.00
Average:
78 | 55 0.07
Clear
Actual:
82 | 59 0.00
Average:
78 | 55 0.07
Partly Cloudy
Actual:
78 | 59 0.00
Average:
78 | 55 0.07
Fog
Actual:
81 | 51 0.00
Average:
78 | 54 0.07
Thunderstorm
Actual:
73 | 61 1.54
Average:
77 | 54 0.07
Partly Cloudy
Actual:
69 | 55 0.00
Average:
77 | 54 0.07
Scattered Clouds
Actual:
72 | 48 0.00
Average:
77 | 53 0.07
Fog
Actual:
73 | 44 0.00
Average:
77 | 53 0.07
Fog
Actual:
79 | 48 0.01
Average:
76 | 53 0.07
Fog
Actual:
79 | 48 0.00
Average:
76 | 53 0.07
Fog
Actual:
81 | 53 0.00
Average:
76 | 53 0.07
Fog
Actual:
82 | 50 0.01
Average:
76 | 54 0.07
Fog
Actual:
84 | 53 0.00
Average:
76 | 54 0.07
Fog
Actual:
84 | 57 0.00
Average:
76 | 54 0.06
Rain
Actual:
81 | 68 0.00
Average:
77 | 54 0.06
Clear
Actual:
82 | 61 0.00
Average:
77 | 54 0.06
Fog
Actual:
81 | 51 0.00
Average:
77 | 54 0.06
Fog
Actual:
86 | 51 0.01
Average:
77 | 54 0.06
Fog
Actual:
89 | 61 0.00
Average:
77 | 54 0.05
Thunderstorm
Actual:
84 | 69 0.58
Average:
77 | 53 0.05
Thunderstorm
Actual:
84 | 71 0.09
Average:
77 | 53 0.05
Scattered Clouds
Actual:
86 | 64 0.01
Average:
77 | 53 0.05
Thunderstorm
Actual:
87 | 59 0.17
Average:
77 | 53 0.05
Thunderstorm
Actual:
82 | 68 0.01
Average:
77 | 53 0.05
 

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
Aug high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 80 68 54 64 61 52 100 82 47 29.94 29.91 29.88 10 8 4 13 6 16 0.02 Rain , Thunderstorm
2 73 60 48 65 56 46 100 87 61 29.94 29.91 29.86 10 7 1 20 4 25 0.00 Rain
3 81 66 53 63 56 49 100 76 35 30.05 29.97 29.92 10 6 0 12 3 20 0.01 Fog
4 75 65 55 54 52 50 87 61 43 30.16 30.12 30.06 10 10 10 13 6 29 0.00  
5 72 60 48 57 53 48 100 72 49 30.13 30.06 29.97 10 10 9 8 1 - 0.00  
6 79 70 63 68 62 57 93 79 64 29.97 29.93 29.90 10 10 7 12 5 - 0.05 Rain
7 84 73 62 71 66 62 100 90 58 29.93 29.89 29.84 10 5 0 15 3 22 0.12 Fog , Rain , Thunderstorm
8 78 72 66 68 63 59 96 76 60 30.01 29.97 29.90 10 10 5 13 7 - 0.00  
9 82 70 59 62 56 49 90 64 38 30.01 29.97 29.95 10 10 10 12 4 16 0.00  
10 78 68 59 61 59 56 96 72 52 30.13 30.09 30.03 10 10 10 8 4 81 0.00  
11 81 66 51 61 55 51 100 82 42 30.13 30.11 30.04 10 6 0 12 1 - 0.00 Fog
12 73 67 61 67 63 58 100 93 71 30.06 29.97 29.86 10 5 0 18 3 30 1.54 Fog , Rain , Thunderstorm
13 69 63 55 64 52 43 97 71 45 30.07 29.95 29.83 10 10 6 14 9 23 0.00  
14 72 60 48 51 47 44 97 68 42 30.17 30.14 30.08 10 10 10 13 6 - 0.00  
15 73 58 44 55 48 44 100 82 44 30.19 30.15 30.11 10 6 0 9 2 - 0.00 Fog
16 79 63 48 57 51 46 100 80 39 30.21 30.16 30.13 10 6 0 7 1 - 0.01 Fog
17 79 63 48 59 53 48 100 86 42 30.27 30.23 30.20 10 5 0 9 1 - 0.00 Fog
18 81 66 53 65 57 54 100 87 45 30.22 30.19 30.12 10 5 0 8 1 - 0.00 Fog
19 82 66 50 63 55 50 100 89 42 30.14 30.11 30.05 10 4 0 13 1 16 0.01 Fog
20 84 68 53 66 59 54 100 88 49 30.15 30.11 30.08 10 4 0 9 1 28 0.00 Fog
21 84 70 57 69 62 57 100 90 53 30.16 30.11 30.00 10 4 0 18 1 84 0.00 Fog
22 81 74 68 69 66 64 93 79 60 30.05 30.02 29.96 10 9 6 12 6 - 0.00 Rain
23 82 71 61 67 54 45 87 57 28 30.20 30.12 30.05 10 10 10 9 5 - 0.00  
24 81 66 51 64 55 51 100 77 46 30.32 30.28 30.21 10 8 0 8 1 - 0.00 Fog
25 86 68 51 64 57 50 100 83 44 30.30 30.26 30.17 10 5 0 13 2 81 0.01 Fog
26 89 74 61 71 66 59 100 76 54 30.17 30.07 29.99 10 8 0 17 6 22 0.00 Fog
27 84 76 69 76 72 68 100 90 74 30.03 29.96 29.86 10 5 0 18 4 25 0.58 Fog , Rain , Thunderstorm
28 84 76 71 75 72 68 100 86 67 30.00 29.87 29.79 10 9 2 12 8 - 0.09 Rain , Thunderstorm
29 86 74 64 72 68 64 97 80 57 30.08 30.04 30.01 10 9 5 7 3 - 0.01  
30 87 72 59 73 66 59 100 86 53 30.02 29.92 29.76 10 5 0 15 2 23 0.17 Fog , Rain , Thunderstorm
31 82 75 68 73 69 65 96 83 56 29.86 29.80 29.76 10 9 6 9 4 - 0.01 Rain , Thunderstorm