Weather History for Harrisburg, PA

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 66 °F 45 °F 35 °F
Mean Temperature 56 °F 39 °F 30 °F
Min Temperature 46 °F 33 °F 21 °F
Degree Days  
Heating Degree Days (base 65) 35 26 9 802
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 6 0 0 10
Dew Point  
Dew Point 55 °F 32 °F 17 °F
Precipitation  
Precipitation 0.69 in 0.11 in 0.00 in 3.55 in
Snowdepth - - - -
Wind  
Wind 29 mph 6 mph 0 mph
Gust Wind 46 mph 24 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.50 in 30.03 in 29.26 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 27, 2012 Rise Set
Actual Time 7:29 AM EST 4:48 PM EST
Civil Twilight 6:58 AM EST 5:19 PM EST
Nautical Twilight 6:24 AM EST 5:53 PM EST
Astronomical Twilight 5:51 AM EST 6:26 PM EST
Moon 4:30 PM EST (12/27) 6:38 AM EST (12/27)
Length of Visible Light 10h 20m
Length of Day
9h 19m
Full, 100% of the Moon is Illuminated
Dec 27
Full
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter

Weather History Calendar

Precipitation Actual month total 3.55 Average Month Total: 1.68
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Fog
Actual:
42 | 35 0.00
Average:
46 | 31 0.06
Rain
Actual:
51 | 39 0.02
Average:
46 | 31 0.06
Rain
Actual:
66 | 41 0.00
Average:
45 | 30 0.06
Rain
Actual:
66 | 46 0.03
Average:
45 | 30 0.06
Partly Cloudy
Actual:
63 | 36 0.01
Average:
44 | 30 0.06
Clear
Actual:
41 | 30 0.00
Average:
43 | 30 0.06
Rain
Actual:
39 | 33 0.37
Average:
43 | 29 0.07
Rain
Actual:
46 | 39 0.05
Average:
43 | 29 0.07
Rain
Actual:
46 | 41 0.42
Average:
42 | 29 0.07
Rain
Actual:
50 | 41 0.09
Average:
42 | 29 0.07
Rain
Actual:
46 | 30 0.03
Average:
42 | 29 0.07
Scattered Clouds
Actual:
39 | 28 0.00
Average:
42 | 28 0.06
Clear
Actual:
45 | 25 0.00
Average:
41 | 28 0.06
Clear
Actual:
50 | 21 0.00
Average:
41 | 27 0.06
Scattered Clouds
Actual:
46 | 28 0.00
Average:
41 | 27 0.06
Overcast
Actual:
50 | 42 0.00
Average:
40 | 26 0.06
Rain
Actual:
46 | 42 0.21
Average:
40 | 26 0.06
Rain
Actual:
52 | 37 0.01
Average:
39 | 25 0.05
Partly Cloudy
Actual:
48 | 35 0.00
Average:
39 | 25 0.05
Rain
Actual:
44 | 30 0.65
Average:
38 | 24 0.05
Rain
Actual:
51 | 37 0.69
Average:
38 | 24 0.05
Rain
Actual:
39 | 32 0.00
Average:
37 | 23 0.05
Scattered Clouds
Actual:
45 | 27 0.00
Average:
37 | 23 0.04
Snow
Actual:
39 | 23 0.12
Average:
36 | 23 0.04
Rain
Actual:
42 | 32 0.00
Average:
36 | 23 0.04
Snow
Actual:
36 | 28 0.51
Average:
36 | 23 0.04
Snow
Actual:
36 | 33 0.17
Average:
36 | 23 0.04
Partly Cloudy
Actual:
37 | 27 0.00
Average:
36 | 23 0.04
Snow
Actual:
35 | 28 0.17
Average:
36 | 23 0.04
Rain
Actual:
35 | 28 0.00
Average:
36 | 23 0.04
Scattered Clouds
Actual:
37 | 23 0.00
Average:
36 | 23 0.04
 

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 42 38 35 39 35 30 100 87 76 30.49 30.42 30.38 10 4 0 7 5 - 0.00 Fog
2 51 45 39 46 42 37 100 94 74 30.41 30.27 30.13 5 2 0 5 2 - 0.02 Fog , Rain
3 66 54 41 52 47 41 100 87 60 30.25 30.20 30.15 10 5 1 8 1 - 0.00 Rain
4 66 56 46 55 51 46 100 89 56 30.23 30.17 29.95 10 3 0 12 1 22 0.03 Fog , Rain
5 63 50 36 51 32 19 72 54 43 30.32 30.15 29.95 10 10 10 18 11 32 0.01  
6 41 36 30 24 21 19 76 57 46 30.40 30.32 30.25 10 10 10 9 6 - 0.00  
7 39 36 33 39 35 24 100 92 70 30.24 30.12 30.01 10 4 2 6 4 - 0.37 Rain
8 46 42 39 46 43 39 100 96 93 30.05 29.96 29.89 4 2 0 6 1 - 0.05 Fog , Rain
9 46 44 41 45 42 39 100 93 81 30.23 30.13 29.99 10 4 0 9 3 - 0.42 Fog , Rain
10 50 46 41 48 45 39 100 97 80 29.96 29.69 29.57 10 2 0 13 3 20 0.09 Fog , Rain
11 46 38 30 40 32 24 88 71 49 30.24 29.97 29.72 10 10 9 14 9 23 0.03 Rain
12 39 34 28 28 26 24 92 76 53 30.46 30.38 30.24 10 10 7 6 2 - 0.00  
13 45 35 25 28 24 20 92 72 37 30.50 30.43 30.35 10 8 4 5 1 - 0.00  
14 50 36 21 28 24 19 92 72 36 30.35 30.28 30.21 10 9 7 10 2 - 0.00  
15 46 37 28 35 30 25 92 74 58 30.34 30.24 30.16 10 9 7 9 2 - 0.00  
16 50 46 42 45 41 36 93 82 74 30.13 29.97 29.86 10 8 4 9 7 - 0.00  
17 46 44 42 46 44 43 100 97 93 29.87 29.78 29.57 7 2 0 12 4 - 0.21 Fog , Rain
18 52 46 37 46 40 28 100 86 56 29.79 29.59 29.52 10 5 0 20 3 28 0.01 Fog , Rain
19 48 42 35 34 31 28 79 67 52 30.19 29.97 29.79 10 10 10 17 7 28 0.00  
20 44 36 30 43 33 27 100 84 60 30.21 29.98 29.49 10 7 2 17 5 25 0.65 Rain
21 51 44 37 49 35 24 94 75 59 29.46 29.34 29.26 10 8 2 23 15 32 0.69 Rain
22 39 36 32 23 21 18 61 53 43 29.98 29.77 29.47 10 10 10 29 21 46 0.00 Rain
23 45 36 27 23 20 18 85 59 34 30.05 29.98 29.89 10 10 10 12 6 - 0.00  
24 39 31 23 32 28 19 96 85 53 30.09 29.99 29.91 10 5 0 13 3 - 0.12 Fog , Rain , Snow
25 42 37 32 36 31 23 100 83 62 30.29 30.09 29.90 10 6 1 10 3 - 0.00 Rain
26 36 32 28 32 26 20 93 84 69 30.30 29.89 29.47 10 5 0 17 9 25 0.51 Fog , Rain , Snow
27 36 34 33 34 28 23 93 78 60 29.99 29.68 29.46 10 8 2 24 12 34 0.17 Rain , Snow
28 37 32 27 25 24 23 85 69 59 30.15 30.08 30.00 10 10 8 12 8 20 0.00  
29 35 32 28 29 27 23 100 87 64 30.03 29.75 29.59 10 4 0 17 6 24 0.17 Fog , Snow
30 35 32 28 23 20 18 67 58 50 30.29 30.10 29.81 10 10 7 25 15 39 0.00 Rain
31 37 30 23 27 20 17 81 65 48 30.28 30.15 29.95 10 10 10 6 4 - 0.00