Weather History for Pontiac, MI

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Month of December, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 57 °F 30 °F 18 °F
Mean Temperature 45 °F 24 °F 10 °F
Min Temperature 37 °F 18 °F 1 °F
Degree Days  
Heating Degree Days (base 65) 56 41 20 1266
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 52 °F 19 °F -4 °F
Precipitation  
Precipitation 0.45 in 0.03 in 0.00 in 1.01 in
Snowdepth 6.0 in 3.1 in 1.0 in -
Wind  
Wind 25 mph 8 mph 0 mph
Gust Wind 33 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.62 in 30.05 in 29.53 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 15, 2013 Rise Set
Actual Time 7:57 AM EST 5:00 PM EST
Civil Twilight 7:24 AM EST 5:33 PM EST
Nautical Twilight 6:49 AM EST 6:08 PM EST
Astronomical Twilight 6:14 AM EST 6:43 PM EST
Moon 4:05 PM EST (12/15) 6:10 AM EST (12/15)
Length of Visible Light 10h 08m
Length of Day
9h 03m
Waxing Gibbous, 97% of the Moon is Illuminated
Dec 15
Waxing Gibbous
Dec 17
Full
Dec 25
Last Quarter
Jan 1
New
Jan 7
First Quarter

Weather History Calendar

Precipitation Actual month total 1.01 Average Month Total: 1.26
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Mostly Cloudy
Actual:
41 | 30 0.00
Average:
39 | 27 0.05
Mostly Cloudy
Actual:
37 | 25 0.00
Average:
39 | 27 0.05
Rain
Actual:
37 | 24 0.00
Average:
39 | 27 0.05
Rain
Actual:
54 | 37 0.01
Average:
38 | 26 0.05
Mostly Cloudy
Actual:
57 | 28 0.00
Average:
38 | 26 0.05
Partly Cloudy
Actual:
28 | 18 0.00
Average:
37 | 26 0.05
Partly Cloudy
Actual:
23 | 12 0.00
Average:
37 | 25 0.05
Snow
Actual:
27 | 12 0.00
Average:
37 | 25 0.05
Snow
Actual:
28 | 19 0.00
Average:
36 | 25 0.05
Snow
Actual:
19 | 10 0.00
Average:
36 | 24 0.05
Snow
Actual:
21 | 5 0.00
Average:
35 | 24 0.05
Snow
Actual:
19 | 1 0.00
Average:
35 | 23 0.05
Overcast
Actual:
25 | 19 0.00
Average:
34 | 23 0.05
Snow
Actual:
21 | 15 0.04
Average:
34 | 22 0.04
Snow
Actual:
23 | 10 0.00
Average:
33 | 21 0.04
Snow
Actual:
19 | 6 0.01
Average:
32 | 21 0.04
Snow
Actual:
27 | 12 0.02
Average:
32 | 20 0.04
Snow
Actual:
28 | 21 0.01
Average:
31 | 19 0.04
Rain
Actual:
37 | 23 0.00
Average:
30 | 18 0.04
Rain
Actual:
35 | 31 0.29
Average:
30 | 18 0.04
Rain
Actual:
33 | 31 0.45
Average:
29 | 18 0.03
Snow
Actual:
35 | 30 0.14
Average:
29 | 17 0.03
Snow
Actual:
30 | 19 0.00
Average:
29 | 17 0.03
Snow
Actual:
18 | 5 0.00
Average:
29 | 17 0.03
Snow
Actual:
23 | 3 0.00
Average:
29 | 17 0.03
Snow
Actual:
25 | 21 0.04
Average:
29 | 17 0.03
Snow
Actual:
37 | 24 0.00
Average:
29 | 17 0.03
Scattered Clouds
Actual:
46 | 34 0.00
Average:
29 | 17 0.03
Snow
Actual:
39 | 19 0.00
Average:
29 | 17 0.03
Snow
Actual:
19 | 14 0.00
Average:
29 | 17 0.03
Snow
Actual:
18 | 10 0.00
Average:
29 | 17 0.03
 

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
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 41 36 30 31 28 24 92 78 65 30.07 30.02 29.97 10 8 5 12 4 - 0.00  
2 37 32 25 28 23 18 89 71 46 29.98 29.94 29.90 10 10 9 10 4 - 0.00  
3 37 30 24 35 29 18 93 85 75 29.92 29.88 29.83 10 7 4 12 6 16 0.00 Rain
4 54 45 37 49 41 35 97 89 80 29.91 29.79 29.61 10 5 2 13 6 - 0.01 Rain
5 57 44 28 52 35 19 88 72 54 30.12 29.80 29.61 10 9 7 23 12 32 0.00  
6 28 24 18 19 14 10 71 65 62 30.39 30.26 30.13 10 10 10 15 10 - 0.00  
7 23 18 12 10 7 5 74 61 46 30.62 30.52 30.36 10 10 10 15 9 22 0.00  
8 27 19 12 25 13 5 92 72 57 30.58 30.32 29.98 10 8 2 13 6 20 0.00 Snow
9 28 24 19 27 21 7 93 81 59 30.08 29.94 29.84 10 5 2 23 12 33 0.00 Snow
10 19 14 10 16 9 -2 86 71 42 30.17 30.06 29.95 10 7 1 18 14 29 0.00 Snow
11 21 14 5 14 10 -2 86 74 62 30.45 30.25 30.12 10 7 0 18 10 - 0.00 Fog , Snow
12 19 10 1 11 4 -4 85 71 45 30.43 30.30 30.16 10 9 2 17 9 31 0.00 Snow
13 25 22 19 18 16 10 86 76 68 30.30 30.19 30.08 10 10 7 10 8 - 0.00  
14 21 18 15 18 13 8 93 81 65 30.29 30.05 29.80 10 2 0 15 11 22 0.04 Fog , Snow
15 23 16 10 19 14 3 93 82 64 30.02 29.83 29.75 10 5 1 25 9 33 0.00 Snow
16 19 12 6 12 6 2 86 73 52 30.18 30.08 29.96 10 9 2 12 6 - 0.01 Snow
17 27 20 12 22 17 10 93 84 74 30.00 29.91 29.82 10 5 1 14 5 20 0.02 Snow
18 28 24 21 23 20 12 93 80 60 30.09 30.00 29.89 10 6 2 14 6 21 0.01 Snow
19 37 30 23 31 26 14 89 77 58 29.99 29.93 29.85 10 8 1 9 5 - 0.00 Rain
20 35 33 31 34 32 30 100 93 87 29.90 29.78 29.71 5 2 0 8 4 - 0.29 Fog , Rain
21 33 32 31 32 30 28 100 92 81 29.87 29.78 29.66 9 4 0 13 5 21 0.45 Fog , Rain
22 35 32 30 32 30 28 100 92 85 29.95 29.71 29.53 10 4 1 15 8 21 0.14 Rain , Snow
23 30 24 19 28 22 11 93 83 71 30.30 30.13 29.92 10 8 2 18 8 21 0.00 Snow
24 18 12 5 12 7 0 86 78 61 30.56 30.37 30.24 10 6 1 17 10 22 0.00 Snow
25 23 13 3 20 13 -2 88 82 73 30.50 30.25 30.06 10 5 1 13 7 21 0.00 Snow
26 25 23 21 22 19 12 93 81 63 30.27 30.11 29.98 10 4 1 24 8 28 0.04 Snow
27 37 30 24 28 25 19 93 81 68 30.31 30.21 30.04 10 7 2 15 6 25 0.00 Snow
28 46 40 34 32 29 27 79 67 56 30.10 30.00 29.89 10 10 10 15 10 22 0.00  
29 39 29 19 32 25 12 93 76 62 30.00 29.79 29.67 10 7 2 17 10 23 0.00 Rain , Snow
30 19 16 14 10 5 1 68 61 54 30.27 30.16 30.02 10 10 9 16 10 24 0.00 Snow
31 18 14 10 13 9 4 86 77 61 30.32 30.12 29.99 10 4 0 21 10 28 0.00 Fog , Snow