Weather History for Allentown, PA

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Month of April, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 90 °F 64 °F 48 °F
Mean Temperature 70 °F 51 °F 40 °F
Min Temperature 56 °F 39 °F 29 °F
Degree Days  
Heating Degree Days (base 65) 25 14 0 414
Cooling Degree Days (base 65) 5 0 0 8
Growing Degree Days (base 50) 20 3 0 101
Dew Point  
Dew Point 58 °F 33 °F 9 °F
Precipitation  
Precipitation 1.66 in 0.13 in 0.00 in 2.92 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 36 mph 8 mph 0 mph
Gust Wind 48 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.36 in 29.91 in 29.19 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Apr. 28, 2012 Rise Set
Actual Time 6:03 AM EDT 7:55 PM EDT
Civil Twilight 5:34 AM EDT 8:24 PM EDT
Nautical Twilight 4:58 AM EDT 9:00 PM EDT
Astronomical Twilight 4:20 AM EDT 9:39 PM EDT
Moon 11:40 AM EDT 1:18 AM EDT
Length of Visible Light 14h 50m
Length of Day
13h 51m
Waxing Crescent, 42% of the Moon is Illuminated
Apr 28
Waxing Crescent
Apr 29
First Quarter
May 5
Full
May 12
Last Quarter
May 20
New

Weather History Calendar

Precipitation Actual month total 2.92 Normal Month Total: 3.56
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Rain
Actual:
53 | 41 0.27
Average:
56 | 34 0.12
Rain
Actual:
57 | 37 T
Average:
56 | 34 0.13
Scattered Clouds
Actual:
67 | 32 0.00
Average:
57 | 35 0.12
Scattered Clouds
Actual:
69 | 42 0.00
Average:
57 | 35 0.13
Clear
Actual:
57 | 36 0.00
Average:
57 | 35 0.11
Clear
Actual:
57 | 31 0.00
Average:
58 | 36 0.12
Clear
Actual:
61 | 35 0.00
Average:
58 | 36 0.12
Scattered Clouds
Actual:
69 | 32 0.00
Average:
59 | 36 0.12
Rain
Actual:
63 | 43 T
Average:
59 | 36 0.12
Partly Cloudy
Actual:
61 | 33 0.00
Average:
59 | 37 0.13
Rain
Actual:
51 | 29 0.04
Average:
60 | 37 0.12
Partly Cloudy
Actual:
59 | 39 T
Average:
60 | 37 0.12
Clear
Actual:
65 | 30 0.00
Average:
60 | 38 0.12
Rain
Actual:
72 | 32 T
Average:
61 | 38 0.12
Rain
Actual:
77 | 55 0.03
Average:
61 | 38 0.12
Clear
Actual:
90 | 50 0.00
Average:
62 | 39 0.11
Clear
Actual:
77 | 56 0.00
Average:
62 | 39 0.12
Rain
Actual:
60 | 45 T
Average:
62 | 39 0.11
Partly Cloudy
Actual:
73 | 49 T
Average:
63 | 40 0.11
Scattered Clouds
Actual:
75 | 42 0.00
Average:
63 | 40 0.12
Thunderstorm
Actual:
78 | 51 0.48
Average:
64 | 40 0.12
Rain
Actual:
51 | 45 1.66
Average:
64 | 41 0.11
Rain
Actual:
48 | 39 0.44
Average:
64 | 41 0.12
Partly Cloudy
Actual:
60 | 39 0.00
Average:
65 | 41 0.11
Partly Cloudy
Actual:
63 | 33 0.00
Average:
65 | 42 0.12
Rain
Actual:
60 | 35 T
Average:
65 | 42 0.12
Partly Cloudy
Actual:
55 | 34 0.00
Average:
66 | 42 0.12
Partly Cloudy
Actual:
57 | 30 T
Average:
66 | 43 0.12
Clear
Actual:
65 | 32 0.00
Average:
66 | 43 0.12
Partly Cloudy
Actual:
66 | 30 0.00
Average:
67 | 43 0.11
 

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
Apr high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 53 47 41 46 41 37 93 78 63 29.91 29.76 29.62 10 7 2 13 4 16 0.27 Rain
2 57 47 37 45 29 12 86 54 21 29.94 29.76 29.61 10 10 2 24 13 33 T Rain
3 67 50 32 30 19 15 61 38 14 29.99 29.90 29.79 10 10 10 17 6 24 0.00  
4 69 56 42 37 30 23 66 44 22 29.78 29.67 29.55 10 10 10 24 9 31 0.00  
5 57 47 36 29 26 23 64 48 32 29.97 29.86 29.78 10 10 10 17 7 23 0.00  
6 57 44 31 26 21 14 64 42 20 30.09 30.01 29.95 10 10 10 21 10 30 0.00  
7 61 48 35 21 15 9 52 32 12 30.16 30.08 30.01 10 10 10 26 11 36 0.00  
8 69 51 32 32 22 16 63 39 14 30.06 29.87 29.70 10 10 10 31 11 46 0.00  
9 63 53 43 32 24 20 53 37 20 29.80 29.73 29.67 10 10 10 36 16 48 T Rain
10 61 47 33 37 30 24 85 56 27 29.83 29.74 29.68 10 10 10 23 10 32 0.00  
11 51 40 29 37 32 27 82 62 42 29.97 29.88 29.83 10 10 6 20 6 26 0.04 Rain
12 59 49 39 34 31 26 73 53 33 30.17 30.05 29.97 10 10 10 21 9 29 T  
13 65 48 30 31 27 25 75 50 24 30.25 30.19 30.14 10 10 10 16 5 23 0.00  
14 72 52 32 45 33 28 82 52 22 30.24 30.14 30.04 10 10 10 20 6 28 T Rain
15 77 66 55 57 53 45 84 67 50 30.06 30.01 29.97 10 9 6 16 7 22 0.03 Rain
16 90 70 50 58 54 49 96 62 27 30.04 29.96 29.89 10 9 5 18 6 24 0.00  
17 77 67 56 56 40 32 78 50 21 30.18 30.10 29.92 10 10 10 18 8 22 0.00  
18 60 53 45 41 33 30 68 51 33 30.30 30.21 30.13 10 10 10 13 5 16 T Rain
19 73 61 49 48 44 39 86 59 31 30.13 30.07 29.98 10 8 3 14 5 20 T  
20 75 59 42 55 47 40 89 65 41 30.03 29.94 29.83 10 9 4 16 6 26 0.00  
21 78 65 51 57 53 46 100 72 43 29.83 29.74 29.61 10 8 0 22 7 31 0.48 Rain , Thunderstorm
22 51 48 45 47 44 39 93 82 71 29.81 29.65 29.36 10 8 3 21 9 28 1.66 Rain
23 48 44 39 43 39 35 96 81 66 29.42 29.28 29.19 10 6 1 17 9 23 0.44 Rain
24 60 50 39 36 31 25 79 54 28 29.73 29.52 29.39 10 10 10 24 12 35 0.00  
25 63 48 33 36 32 27 89 58 27 29.91 29.81 29.74 10 10 10 15 4 26 0.00  
26 60 48 35 51 41 31 89 77 65 29.92 29.76 29.61 10 10 7 18 5 25 T Rain
27 55 45 34 50 31 24 66 51 36 30.17 29.92 29.65 10 10 10 24 12 31 0.00  
28 57 44 30 31 26 23 69 51 32 30.29 30.19 30.13 10 10 10 14 7 18 T  
29 65 49 32 31 22 15 75 46 16 30.28 30.18 30.11 10 10 10 20 7 26 0.00  
30 66 48 30 39 28 18 69 47 25 30.36 30.27 30.16 10 10 10 15 5 20 0.00