Weather History for Pottstown, PA

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 66 °F 46 °F 32 °F
Mean Temperature 59 °F 40 °F 29 °F
Min Temperature 52 °F 33 °F 21 °F
Degree Days  
Heating Degree Days (base 65) 36 25 6 786
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 9 0 0 11
Dew Point  
Dew Point 56 °F 33 °F 16 °F
Precipitation  
Precipitation 1.57 in 0.13 in 0.00 in 4.10 in
Snowdepth - - - -
Wind  
Wind 23 mph 5 mph 0 mph
Gust Wind 38 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.48 in 30.01 in 29.18 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 30, 2012 Rise Set
Actual Time 7:24 AM EST 4:45 PM EST
Civil Twilight 6:53 AM EST 5:16 PM EST
Nautical Twilight 6:19 AM EST 5:50 PM EST
Astronomical Twilight 5:46 AM EST 6:23 PM EST
Moon 7:14 PM EST (12/30) 8:32 AM EST (12/30)
Length of Visible Light 10h 22m
Length of Day
9h 21m
Waning Gibbous, 95% of the Moon is Illuminated
Dec 30
Waning Gibbous
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

Weather History Calendar

 
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Overcast
Actual:
44 | 37 0.00
Average:
- | - -
Rain
Actual:
50 | 39 0.04
Average:
- | - -
Fog
Actual:
63 | 41 0.00
Average:
- | - -
Partly Cloudy
Actual:
66 | 52 0.00
Average:
- | - -
Rain
Actual:
60 | 34 0.01
Average:
- | - -
Clear
Actual:
41 | 27 0.00
Average:
- | - -
Rain
Actual:
39 | 28 0.23
Average:
- | - -
Rain
Actual:
51 | 39 0.07
Average:
- | - -
Rain
Actual:
48 | 39 0.18
Average:
- | - -
Rain
Actual:
59 | 42 0.02
Average:
- | - -
Rain
Actual:
48 | 34 0.04
Average:
- | - -
Clear
Actual:
42 | 28 0.00
Average:
- | - -
Clear
Actual:
45 | 27 0.00
Average:
- | - -
Clear
Actual:
48 | 21 0.00
Average:
- | - -
Scattered Clouds
Actual:
46 | 27 0.00
Average:
- | - -
Rain
Actual:
51 | 41 0.06
Average:
- | - -
Rain
Actual:
44 | 42 0.13
Average:
- | - -
Rain
Actual:
55 | 39 0.15
Average:
- | - -
Scattered Clouds
Actual:
48 | 32 0.00
Average:
- | - -
Rain
Actual:
45 | 27 0.30
Average:
- | - -
Snow
Actual:
57 | 35 1.57
Average:
- | - -
Snow
Actual:
39 | 34 0.00
Average:
- | - -
Scattered Clouds
Actual:
45 | 28 0.00
Average:
- | - -
Snow
Actual:
37 | 21 0.20
Average:
- | - -
Mostly Cloudy
Actual:
41 | 30 0.00
Average:
- | - -
Snow
Actual:
37 | 26 0.75
Average:
- | - -
Snow
Actual:
39 | 33 0.08
Average:
- | - -
Partly Cloudy
Actual:
39 | 26 0.00
Average:
- | - -
Snow
Actual:
32 | 28 0.27
Average:
- | - -
Partly Cloudy
Actual:
36 | 30 0.00
Average:
- | - -
Partly Cloudy
Actual:
41 | 27 0.00
Average:
- | - -
 

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 44 40 37 40 37 33 100 88 79 30.48 30.43 30.40 10 8 1 7 5 - 0.00  
2 50 44 39 48 42 39 100 93 80 30.42 30.28 30.14 10 4 0 7 1 - 0.04 Fog , Rain
3 63 52 41 53 46 41 100 91 65 30.25 30.20 30.13 10 4 0 7 0 - 0.00 Fog
4 66 59 52 54 52 49 97 81 63 30.25 30.15 29.97 10 9 3 8 1 - 0.00  
5 60 48 34 51 34 18 74 57 43 30.29 30.11 29.95 10 10 10 18 8 25 0.01 Rain
6 41 34 27 21 19 18 78 60 43 30.39 30.32 30.28 10 10 10 8 3 - 0.00  
7 39 34 28 39 36 22 100 94 78 30.27 30.12 30.01 10 4 2 5 0 - 0.23 Rain
8 51 45 39 48 44 39 100 96 87 30.03 29.96 29.90 6 3 0 6 1 - 0.07 Fog , Rain
9 48 44 39 47 42 37 100 94 80 30.25 30.12 30.00 10 4 0 8 3 - 0.18 Fog , Rain
10 59 50 42 56 50 41 100 97 90 29.98 29.71 29.57 10 3 0 7 1 - 0.02 Fog , Rain
11 48 42 34 45 35 25 93 73 48 30.22 29.95 29.65 10 10 10 14 7 18 0.04 Rain
12 42 35 28 29 26 25 89 71 51 30.45 30.37 30.22 10 10 10 8 2 - 0.00  
13 45 36 27 27 24 21 89 68 39 30.48 30.42 30.35 10 10 6 9 1 - 0.00  
14 48 34 21 27 24 19 92 72 39 30.33 30.27 30.21 10 8 4 8 1 - 0.00  
15 46 36 27 36 29 23 92 73 54 30.34 30.26 30.19 10 10 8 6 1 - 0.00  
16 51 46 41 47 43 36 100 87 71 30.18 29.99 29.88 10 8 2 8 2 - 0.06 Rain
17 44 43 42 45 43 41 100 98 93 29.90 29.80 29.58 9 3 1 7 4 - 0.13 Rain
18 55 48 39 47 42 28 100 88 60 29.73 29.57 29.50 10 6 0 16 2 33 0.15 Fog , Rain
19 48 40 32 32 30 27 82 66 52 30.17 29.93 29.75 10 10 10 15 7 24 0.00  
20 45 35 27 44 32 25 97 82 60 30.21 30.01 29.60 10 10 6 14 3 24 0.30 Rain
21 57 46 35 55 41 26 100 84 60 29.59 29.30 29.18 10 7 2 18 11 34 1.57 Rain , Snow
22 39 36 34 30 23 21 81 58 47 29.92 29.68 29.42 10 10 9 20 14 34 0.00 Snow
23 45 36 28 22 20 16 78 55 31 30.02 29.96 29.88 10 10 10 10 6 18 0.00  
24 37 29 21 32 27 19 100 83 55 30.09 30.00 29.92 10 6 0 6 2 - 0.20 Fog , Rain , Snow
25 41 36 30 34 31 24 100 88 65 30.28 30.07 29.90 10 6 1 12 3 - 0.00  
26 37 32 26 37 28 21 100 87 69 30.28 29.91 29.43 10 6 1 21 9 33 0.75 Rain , Snow
27 39 36 33 36 30 22 93 80 61 29.93 29.58 29.35 10 9 4 21 13 33 0.08 Rain , Snow
28 39 33 26 25 23 21 88 68 57 30.11 30.06 29.94 10 10 10 14 8 24 0.00  
29 32 30 28 31 28 23 100 89 69 30.04 29.70 29.55 10 5 0 15 2 25 0.27 Fog , Snow
30 36 33 30 23 20 18 66 59 50 30.25 30.03 29.74 10 10 10 23 13 38 0.00  
31 41 33 27 28 21 19 72 62 55 30.25 30.14 29.95 10 10 10 9 6 18 0.00