Weather History for Allentown, PA

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Month of December, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 65 °F 40 °F 24 °F
Mean Temperature 51 °F 32 °F 17 °F
Min Temperature 46 °F 23 °F 9 °F
Degree Days  
Heating Degree Days (base 65) 48 33 14 1023
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 57 °F 25 °F 1 °F
Precipitation  
Precipitation 0.85 in 0.14 in 0.00 in 4.04 in
Snowdepth 6.0 in 1.6 in 0.0 in -
Wind  
Wind 25 mph 6 mph 0 mph
Gust Wind 32 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.61 in 30.11 in 29.52 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 26, 2013 Rise Set
Actual Time 7:24 AM EST 4:40 PM EST
Civil Twilight 6:53 AM EST 5:11 PM EST
Nautical Twilight 6:18 AM EST 5:46 PM EST
Astronomical Twilight 5:45 AM EST 6:19 PM EST
Moon 12:49 AM EST (12/26) 12:16 PM EST (12/26)
Length of Visible Light 10h 18m
Length of Day
9h 16m
Last Quarter, 38% of the Moon is Illuminated
Dec 26
Last Quarter
Jan 1
New
Jan 7
First Quarter
Jan 15
Full
Jan 24
Last Quarter

Weather History Calendar

Precipitation Actual month total 4.04 Normal Month Total: 3.58
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Partly Cloudy
Actual:
44 | 21 0.00
Average:
46 | 28 0.13
Partly Cloudy
Actual:
47 | 29 0.00
Average:
45 | 28 0.13
Partly Cloudy
Actual:
53 | 29 0.00
Average:
45 | 28 0.14
Partly Cloudy
Actual:
50 | 30 0.00
Average:
45 | 27 0.13
Rain
Actual:
55 | 46 0.02
Average:
44 | 27 0.13
Rain
Actual:
54 | 36 0.85
Average:
44 | 27 0.13
Snow
Actual:
37 | 27 0.01
Average:
43 | 27 0.13
Snow
Actual:
29 | 23 0.11
Average:
43 | 26 0.13
Rain
Actual:
34 | 28 0.23
Average:
43 | 26 0.13
Snow
Actual:
33 | 18 0.17
Average:
42 | 26 0.13
Scattered Clouds
Actual:
31 | 15 0.00
Average:
42 | 25 0.13
Snow
Actual:
28 | 13 0.01
Average:
41 | 25 0.13
Partly Cloudy
Actual:
34 | 14 0.00
Average:
41 | 25 0.12
Snow
Actual:
30 | 20 0.59
Average:
41 | 24 0.12
Rain
Actual:
38 | 25 0.19
Average:
40 | 24 0.11
Snow
Actual:
31 | 12 T
Average:
40 | 24 0.12
Snow
Actual:
24 | 9 0.14
Average:
40 | 24 0.11
Rain
Actual:
34 | 11 0.00
Average:
40 | 23 0.10
Rain
Actual:
40 | 11 0.00
Average:
39 | 23 0.11
Partly Cloudy
Actual:
48 | 27 0.00
Average:
39 | 23 0.11
Partly Cloudy
Actual:
50 | 33 T
Average:
39 | 23 0.10
Rain
Actual:
65 | 37 0.16
Average:
38 | 22 0.11
Rain
Actual:
56 | 36 0.68
Average:
38 | 22 0.10
Snow
Actual:
37 | 23 T
Average:
38 | 22 0.11
Scattered Clouds
Actual:
26 | 16 0.00
Average:
38 | 22 0.11
Snow
Actual:
33 | 18 0.03
Average:
38 | 21 0.10
Partly Cloudy
Actual:
39 | 19 0.00
Average:
37 | 21 0.10
Scattered Clouds
Actual:
51 | 20 0.00
Average:
37 | 21 0.10
Rain
Actual:
42 | 31 0.84
Average:
37 | 21 0.10
Mostly Cloudy
Actual:
43 | 26 0.00
Average:
37 | 21 0.09
Snow
Actual:
32 | 17 0.01
Average:
37 | 21 0.09
 

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 44 33 21 28 25 19 92 71 49 30.37 30.19 30.03 10 8 6 9 2 12 0.00  
2 47 38 29 32 29 26 85 67 49 30.01 29.95 29.89 8 6 5 5 1 6 0.00  
3 53 41 29 33 31 28 92 68 44 30.02 29.94 29.90 8 6 4 10 2 13 0.00  
4 50 40 30 43 35 27 92 77 61 30.14 30.08 30.02 7 5 3 9 2 12 0.00  
5 55 51 46 53 49 42 100 90 80 30.10 30.02 29.93 5 1 0 7 2 12 0.02 Fog , Rain
6 54 45 36 54 44 32 100 88 76 30.19 30.00 29.88 10 5 0 17 5 21 0.85 Fog , Rain
7 37 32 27 33 27 18 92 74 56 30.55 30.34 30.12 10 9 2 16 7 21 0.01 Rain , Snow
8 29 26 23 26 21 14 92 75 58 30.61 30.50 30.36 10 5 0 12 5 15 0.11 Fog , Rain , Snow
9 34 31 28 33 30 27 100 93 85 30.33 30.10 30.00 6 3 1 14 6 17 0.23 Rain
10 33 26 18 30 26 11 100 75 50 30.16 29.99 29.92 10 4 0 13 7 17 0.17 Fog , Snow
11 31 23 15 15 13 10 67 58 49 30.35 30.26 30.17 10 10 10 18 11 25 0.00  
12 28 21 13 18 8 1 71 54 36 30.40 30.29 30.17 10 9 2 17 7 22 0.01 Snow
13 34 24 14 19 12 2 74 59 43 30.33 30.21 30.15 10 10 10 22 10 30 0.00  
14 30 25 20 21 19 16 92 80 68 30.45 30.22 29.80 10 3 0 21 12 24 0.59 Fog , Rain , Snow
15 38 32 25 30 24 18 92 73 54 29.86 29.71 29.61 10 8 2 23 11 30 0.19 Rain
16 31 22 12 20 8 3 67 53 38 30.22 30.09 29.88 10 10 9 23 10 32 T Snow
17 24 17 9 20 15 6 92 80 67 30.21 30.04 29.97 10 3 0 10 3 12 0.14 Fog , Snow
18 34 23 11 21 16 11 92 72 51 30.20 30.09 29.99 10 8 5 18 7 23 0.00 Rain
19 40 26 11 24 18 9 92 73 54 30.18 30.13 30.06 10 7 4 12 2 15 0.00 Rain
20 48 38 27 31 27 23 85 67 49 30.10 30.05 29.99 7 6 4 6 1 7 0.00  
21 50 42 33 37 33 29 89 75 61 30.02 29.97 29.90 8 6 5 7 1 8 T  
22 65 51 37 57 50 35 100 87 73 29.96 29.88 29.79 10 7 0 20 7 26 0.16 Fog , Rain
23 56 46 36 55 46 23 100 82 64 30.20 30.00 29.91 10 4 0 20 5 24 0.68 Fog , Rain
24 37 30 23 23 19 12 81 64 47 30.40 30.24 30.15 10 9 1 25 10 31 T Snow
25 26 21 16 12 8 5 61 54 46 30.56 30.48 30.41 10 10 10 16 4 22 0.00  
26 33 26 18 25 20 12 81 68 55 30.39 30.27 30.18 10 7 0 14 3 18 0.03 Fog , Snow
27 39 29 19 22 19 15 84 66 48 30.38 30.33 30.30 10 10 8 17 5 23 0.00  
28 51 36 20 27 23 16 92 65 38 30.29 30.18 30.09 10 9 5 23 4 29 0.00  
29 42 37 31 40 34 27 100 88 75 30.08 29.78 29.52 10 7 1 23 5 26 0.84 Rain
30 43 35 26 36 25 12 92 73 53 30.19 30.00 29.76 10 10 9 18 9 24 0.00  
31 32 25 17 25 16 8 78 62 46 30.31 30.15 30.07 10 8 1 23 8 32 0.01 Snow