Weather History for Ypsilanti, MI

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 64 °F 43 °F 30 °F
Mean Temperature 54 °F 37 °F 21 °F
Min Temperature 50 °F 30 °F 12 °F
Degree Days  
Heating Degree Days (base 65) 44 28 10 881
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 4 0 0 9
Dew Point  
Dew Point 58 °F 30 °F 6 °F
Precipitation  
Precipitation 0.81 in 0.06 in 0.00 in 1.92 in
Snowdepth - - - -
Wind  
Wind 30 mph 8 mph 0 mph
Gust Wind 41 mph 25 mph 18 mph
Sea Level Pressure  
Sea Level Pressure 30.41 in 29.98 in 29.18 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 09, 2012 Rise Set
Actual Time 7:51 AM EST 5:01 PM EST
Civil Twilight 7:19 AM EST 5:33 PM EST
Nautical Twilight 6:44 AM EST 6:08 PM EST
Astronomical Twilight 6:10 AM EST 6:42 PM EST
Moon 3:19 AM EST (12/9) 2:10 PM EST (12/9)
Length of Visible Light 10h 13m
Length of Day
9h 10m
Waning Crescent, 19% of the Moon is Illuminated
Dec 9
Waning Crescent
Dec 13
New
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Weather History Calendar

Precipitation Actual month total 1.92 Average Month Total: 2.25
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Fog
Actual:
60 | 37 0.00
Average:
41 | 28 0.10
Rain
Actual:
59 | 50 0.12
Average:
40 | 26 0.09
Fog
Actual:
64 | 42 0.01
Average:
39 | 26 0.08
Rain
Actual:
63 | 41 0.17
Average:
39 | 26 0.06
Scattered Clouds
Actual:
41 | 27 0.00
Average:
38 | 26 0.03
Scattered Clouds
Actual:
41 | 24 0.00
Average:
38 | 26 0.12
Rain
Actual:
45 | 37 0.07
Average:
37 | 25 0.07
Rain
Actual:
44 | 37 0.18
Average:
38 | 26 0.07
Rain
Actual:
41 | 35 0.10
Average:
38 | 25 0.05
Rain
Actual:
44 | 34 0.01
Average:
36 | 23 0.08
Snow
Actual:
37 | 27 0.00
Average:
36 | 22 0.08
Clear
Actual:
44 | 27 0.00
Average:
37 | 24 0.11
Clear
Actual:
46 | 25 0.00
Average:
38 | 24 0.05
Clear
Actual:
50 | 28 0.00
Average:
36 | 25 0.04
Rain
Actual:
46 | 28 0.03
Average:
38 | 24 0.12
Rain
Actual:
54 | 46 0.23
Average:
36 | 24 0.06
Overcast
Actual:
45 | 41 0.00
Average:
34 | 21 0.02
Rain
Actual:
44 | 35 0.02
Average:
33 | 20 0.03
Mostly Cloudy
Actual:
42 | 32 0.00
Average:
33 | 22 0.06
Snow
Actual:
48 | 36 0.81
Average:
33 | 22 0.09
Snow
Actual:
36 | 32 0.02
Average:
33 | 21 0.06
Partly Cloudy
Actual:
37 | 27 0.00
Average:
33 | 20 0.08
Scattered Clouds
Actual:
37 | 21 0.00
Average:
34 | 21 0.07
Snow
Actual:
36 | 24 0.00
Average:
33 | 20 0.09
Partly Cloudy
Actual:
34 | 24 0.02
Average:
31 | 19 0.08
Snow
Actual:
33 | 28 0.00
Average:
29 | 17 0.04
Snow
Actual:
34 | 16 0.05
Average:
31 | 17 0.09
Snow
Actual:
30 | 12 0.00
Average:
32 | 19 0.04
Snow
Actual:
30 | 21 0.01
Average:
32 | 20 0.13
Snow
Actual:
30 | 17 0.00
Average:
31 | 19 0.08
Partly Cloudy
Actual:
37 | 18 0.07
Average:
32 | 20 0.08
 

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
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 60 48 37 45 38 33 89 76 57 30.27 30.19 30.01 10 5 0 22 7 29 0.00 Fog
2 59 54 50 54 50 46 94 84 69 30.12 30.00 29.93 10 5 0 20 11 31 0.12 Fog , Rain
3 64 53 42 58 49 39 94 87 68 30.14 30.07 29.92 10 2 0 23 4 38 0.01 Fog
4 63 52 41 54 46 32 82 74 63 30.12 29.99 29.91 10 9 2 20 14 26 0.17 Rain
5 41 34 27 30 22 18 75 61 45 30.41 30.34 30.15 10 10 10 17 9 23 0.00  
6 41 32 24 31 25 19 86 72 53 30.36 30.19 29.99 10 10 9 12 5 - 0.00  
7 45 41 37 41 38 31 89 83 73 29.99 29.93 29.89 9 3 1 8 3 - 0.07 Rain
8 44 40 37 40 36 29 86 80 73 30.18 29.94 29.82 10 7 1 12 7 - 0.18 Rain
9 41 38 35 36 32 27 93 79 65 30.19 29.97 29.65 10 6 0 14 7 22 0.10 Fog , Rain
10 44 40 34 38 32 22 93 75 61 29.87 29.70 29.62 10 8 0 15 7 20 0.01 Fog , Rain
11 37 32 27 27 22 19 75 64 50 30.17 30.04 29.88 10 10 10 16 7 - 0.00 Snow
12 44 36 27 27 23 21 81 69 47 30.39 30.32 30.19 10 9 6 15 11 - 0.00  
13 46 36 25 26 24 19 82 65 44 30.40 30.32 30.19 10 9 6 15 7 - 0.00  
14 50 39 28 32 27 24 82 70 48 30.26 30.22 30.19 10 8 4 9 6 - 0.00  
15 46 37 28 41 32 25 89 78 58 30.19 30.00 29.70 10 5 0 17 5 23 0.03 Fog , Rain
16 54 50 46 49 45 38 93 81 69 29.69 29.64 29.59 10 6 2 16 7 21 0.23 Rain
17 45 44 41 37 35 31 80 70 63 29.75 29.68 29.63 10 10 7 12 7 - 0.00  
18 44 40 35 34 30 26 86 70 51 29.78 29.73 29.64 10 8 3 13 7 - 0.02 Rain
19 42 37 32 36 33 27 87 82 67 30.14 29.96 29.74 7 4 2 8 2 - 0.00  
20 48 42 36 45 37 30 93 80 70 30.08 29.45 29.18 10 6 2 30 14 41 0.81 Rain , Snow
21 36 34 32 31 28 23 89 79 66 29.88 29.41 29.19 10 5 1 26 15 40 0.02 Snow
22 37 32 27 25 22 20 81 67 54 30.09 30.02 29.91 10 10 6 23 16 32 0.00  
23 37 29 21 23 20 17 82 68 55 30.05 29.98 29.92 10 9 4 12 7 - 0.00  
24 36 30 24 27 24 17 82 75 64 30.03 29.91 29.82 10 7 1 13 7 21 0.00 Snow
25 34 29 24 25 22 19 85 72 59 30.32 30.22 30.02 10 10 10 10 7 - 0.02  
26 33 30 28 25 23 20 86 76 61 30.26 29.93 29.82 10 4 0 26 16 34 0.00 Snow
27 34 25 16 26 21 11 82 74 56 30.17 30.04 29.85 10 9 2 15 10 24 0.05 Snow
28 30 21 12 23 16 6 85 77 66 30.21 30.10 29.95 10 6 0 8 1 - 0.00 Fog , Snow
29 30 27 21 25 23 15 86 80 71 30.07 29.87 29.80 10 4 1 12 8 - 0.01 Snow
30 30 24 17 25 19 11 86 76 69 30.32 30.24 30.09 10 7 2 18 10 - 0.00 Rain , Snow
31 37 28 18 27 22 12 78 69 61 30.19 30.02 29.94 10 8 5 20 13 - 0.07