Weather History for Ypsilanti, MI

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 93 °F 76 °F 60 °F
Mean Temperature 78 °F 64 °F 52 °F
Min Temperature 70 °F 53 °F 39 °F
Degree Days  
Heating Degree Days (base 65) 14 4 0 112
Cooling Degree Days (base 65) 14 3 0 90
Growing Degree Days (base 50) 28 14 2 428
Dew Point  
Dew Point 72 °F 51 °F 33 °F
Precipitation  
Precipitation 0.99 in 0.09 in 0.00 in 2.55 in
Snowdepth - - - -
Wind  
Wind 22 mph 6 mph 0 mph
Gust Wind 30 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.34 in 30.01 in 29.60 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 22, 2012 Rise Set
Actual Time 7:22 AM EDT 7:30 PM EDT
Civil Twilight 6:54 AM EDT 7:58 PM EDT
Nautical Twilight 6:21 AM EDT 8:31 PM EDT
Astronomical Twilight 5:47 AM EDT 9:04 PM EDT
Moon 2:45 PM EDT (9/22) No Moon Set
Length of Visible Light 13h 04m
Length of Day
12h 08m
Waxing Crescent, 48% of the Moon is Illuminated
Sep 22
Waxing Crescent
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New

Weather History Calendar

Precipitation Actual month total 2.55 Average Month Total: 3.40
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
86 | 70 0.00
Average:
80 | 59 0.06
Partly Cloudy
Actual:
84 | 69 0.00
Average:
80 | 59 0.08
Scattered Clouds
Actual:
93 | 66 0.00
Average:
79 | 58 0.15
Rain
Actual:
84 | 69 0.99
Average:
78 | 57 0.10
Rain
Actual:
82 | 64 0.06
Average:
79 | 57 0.01
Fog
Actual:
88 | 66 0.00
Average:
78 | 58 0.18
Rain
Actual:
84 | 62 0.07
Average:
79 | 57 0.12
Rain
Actual:
75 | 59 0.51
Average:
79 | 57 0.02
Scattered Clouds
Actual:
75 | 51 0.01
Average:
79 | 57 0.19
Clear
Actual:
75 | 48 0.00
Average:
78 | 56 0.16
Clear
Actual:
82 | 53 0.01
Average:
77 | 57 0.14
Clear
Actual:
86 | 55 0.00
Average:
75 | 56 0.09
Partly Cloudy
Actual:
87 | 61 0.00
Average:
75 | 56 0.12
Rain
Actual:
73 | 55 0.47
Average:
74 | 54 0.14
Clear
Actual:
75 | 48 0.00
Average:
74 | 53 0.17
Clear
Actual:
79 | 50 0.01
Average:
72 | 53 0.15
Rain
Actual:
79 | 52 0.04
Average:
72 | 54 0.11
Rain
Actual:
68 | 46 0.06
Average:
74 | 54 0.12
Clear
Actual:
70 | 39 0.00
Average:
74 | 52 0.10
Rain
Actual:
71 | 52 0.13
Average:
73 | 54 0.08
Rain
Actual:
73 | 48 0.14
Average:
70 | 51 0.12
Rain
Actual:
61 | 46 0.03
Average:
69 | 50 0.17
Rain
Actual:
60 | 44 0.01
Average:
69 | 49 0.12
Clear
Actual:
66 | 39 0.00
Average:
68 | 46 0.03
Partly Cloudy
Actual:
72 | 46 0.00
Average:
69 | 48 0.12
Partly Cloudy
Actual:
73 | 51 0.00
Average:
70 | 51 0.15
Scattered Clouds
Actual:
69 | 46 0.00
Average:
70 | 49 0.19
Partly Cloudy
Actual:
73 | 46 0.00
Average:
70 | 48 0.04
Scattered Clouds
Actual:
75 | 44 0.01
Average:
69 | 47 0.11
Partly Cloudy
Actual:
69 | 46 0.00
Average:
69 | 48 0.06
 

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

2012 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 86 77 70 66 59 55 68 53 38 30.12 30.08 30.02 10 10 10 12 4 - 0.00 Rain
2 84 76 69 69 64 55 78 66 55 30.05 30.00 29.95 10 10 9 12 7 - 0.00  
3 93 78 66 72 66 57 89 69 47 29.97 29.93 29.87 10 9 2 10 5 18 0.00  
4 84 76 69 72 69 66 94 83 62 29.94 29.88 29.85 10 4 0 13 2 20 0.99 Fog , Rain
5 82 73 64 70 66 61 94 84 62 29.91 29.87 29.78 10 4 0 16 3 24 0.06 Fog , Rain
6 88 76 66 68 64 58 94 72 38 29.93 29.87 29.82 10 8 0 9 2 - 0.00 Fog
7 84 72 62 66 59 57 88 66 41 29.91 29.81 29.68 10 10 7 17 6 23 0.07 Rain
8 75 66 59 59 54 48 88 72 41 29.86 29.72 29.66 10 8 2 21 10 26 0.51 Rain
9 75 62 51 52 48 43 86 62 38 30.10 29.97 29.85 10 10 10 13 3 - 0.01  
10 75 62 48 52 46 41 83 59 29 30.24 30.18 30.11 10 10 10 8 2 - 0.00  
11 82 68 53 54 51 47 83 59 34 30.24 30.19 30.14 10 10 10 17 6 23 0.01  
12 86 70 55 57 54 49 81 59 35 30.25 30.20 30.15 10 10 10 16 7 21 0.00  
13 87 74 61 60 56 49 83 60 31 30.26 30.21 30.17 10 10 6 17 6 26 0.00  
14 73 64 55 59 53 43 88 72 33 30.29 30.25 30.21 10 8 2 17 9 26 0.47 Rain
15 75 62 48 50 46 42 77 59 33 30.34 30.26 30.17 10 10 10 10 6 - 0.00  
16 79 64 50 53 49 44 83 61 34 30.17 30.10 30.03 10 10 10 10 5 - 0.01  
17 79 65 52 61 53 46 80 64 40 30.04 29.90 29.71 10 10 10 13 5 - 0.04 Rain
18 68 58 46 63 51 35 88 71 49 29.98 29.72 29.60 10 9 5 18 11 26 0.06 Rain
19 70 54 39 42 37 35 86 54 30 30.13 30.05 29.99 10 10 10 15 6 21 0.00  
20 71 62 52 53 45 37 77 57 39 29.99 29.91 29.84 10 10 2 20 12 29 0.13 Rain
21 73 60 48 51 44 37 86 62 27 29.93 29.89 29.79 10 10 8 18 5 26 0.14 Rain
22 61 54 46 51 46 39 86 75 58 30.09 29.87 29.73 10 9 5 15 7 25 0.03 Rain
23 60 52 44 44 40 35 86 64 41 30.22 30.16 30.10 10 10 10 18 7 22 0.01 Rain
24 66 52 39 39 35 33 86 56 30 30.21 30.11 29.95 10 10 10 22 9 30 0.00  
25 72 58 46 57 46 36 84 62 45 29.96 29.92 29.88 10 9 5 16 10 - 0.00  
26 73 64 51 63 57 43 94 77 55 30.16 29.98 29.89 10 6 1 15 6 - 0.00  
27 69 57 46 45 42 40 83 64 39 30.25 30.20 30.16 10 10 10 14 7 - 0.00  
28 73 58 46 49 44 42 86 63 35 30.18 30.13 30.07 10 10 10 7 2 - 0.00  
29 75 58 44 47 43 39 93 62 28 30.09 30.02 29.94 10 8 2 9 2 - 0.01  
30 69 56 46 48 44 41 86 69 45 29.97 29.94 29.91 10 10 8 15 6 - 0.00