Weather History for Pittsburgh, PA

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 65 °F 45 °F 29 °F
Mean Temperature 57 °F 38 °F 27 °F
Min Temperature 53 °F 32 °F 20 °F
Degree Days  
Heating Degree Days (base 65) 38 27 8 823
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 6 0 0 12
Dew Point  
Dew Point 56 °F 32 °F 17 °F
Precipitation  
Precipitation 0.95 in 0.21 in 0.00 in 5.51 in
Snowdepth 8.0 in 1.1 in 0.0 in -
Wind  
Wind 32 mph 7 mph 0 mph
Gust Wind 40 mph 23 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.47 in 30.01 in 29.33 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 08, 2012 Rise Set
Actual Time 7:31 AM EST 4:53 PM EST
Civil Twilight 7:01 AM EST 5:24 PM EST
Nautical Twilight 6:27 AM EST 5:58 PM EST
Astronomical Twilight 5:54 AM EST 6:31 PM EST
Moon 1:53 AM EST (12/8) 1:23 PM EST (12/8)
Length of Visible Light 10h 23m
Length of Day
9h 22m
Waning Crescent, 28% of the Moon is Illuminated
Dec 8
Waning Crescent
Dec 13
New
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Weather History Calendar

Precipitation Actual month total 5.51 Normal Month Total: 2.85
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
58 | 33 0.00
Average:
44 | 30 0.09
Rain
Actual:
59 | 44 0.02
Average:
44 | 30 0.10
Rain
Actual:
60 | 53 T
Average:
44 | 29 0.10
Rain
Actual:
65 | 44 0.47
Average:
43 | 29 0.09
Partly Cloudy
Actual:
44 | 30 0.00
Average:
43 | 29 0.10
Partly Cloudy
Actual:
45 | 24 0.00
Average:
42 | 28 0.10
Rain
Actual:
50 | 39 0.95
Average:
42 | 28 0.10
Rain
Actual:
54 | 41 0.12
Average:
42 | 28 0.10
Rain
Actual:
56 | 39 0.21
Average:
41 | 27 0.10
Snow
Actual:
57 | 36 0.87
Average:
41 | 27 0.10
Snow
Actual:
38 | 31 T
Average:
41 | 27 0.10
Scattered Clouds
Actual:
40 | 24 0.00
Average:
40 | 26 0.09
Clear
Actual:
43 | 21 0.00
Average:
40 | 26 0.09
Partly Cloudy
Actual:
48 | 24 0.00
Average:
40 | 26 0.10
Rain
Actual:
50 | 30 0.01
Average:
39 | 25 0.08
Rain
Actual:
56 | 46 T
Average:
39 | 25 0.09
Rain
Actual:
55 | 46 0.81
Average:
39 | 25 0.08
Rain
Actual:
47 | 35 0.03
Average:
38 | 24 0.09
Snow
Actual:
44 | 30 0.01
Average:
38 | 24 0.08
Rain
Actual:
46 | 31 0.59
Average:
38 | 24 0.09
Snow
Actual:
41 | 29 0.12
Average:
38 | 24 0.08
Snow
Actual:
31 | 26 0.04
Average:
38 | 24 0.10
Scattered Clouds
Actual:
38 | 21 0.00
Average:
37 | 23 0.09
Rain
Actual:
37 | 21 0.05
Average:
37 | 23 0.09
Rain
Actual:
35 | 32 T
Average:
37 | 23 0.09
Snow
Actual:
32 | 26 0.70
Average:
37 | 23 0.09
Snow
Actual:
32 | 27 T
Average:
37 | 23 0.09
Mostly Cloudy
Actual:
32 | 25 0.00
Average:
37 | 22 0.09
Snow
Actual:
31 | 26 0.38
Average:
36 | 22 0.09
Snow
Actual:
29 | 24 0.02
Average:
36 | 22 0.08
Snow
Actual:
34 | 20 0.11
Average:
36 | 22 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

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 58 46 33 39 34 28 82 65 47 30.35 30.30 30.25 10 10 10 14 3 18 0.00  
2 59 52 44 54 46 37 100 77 53 30.23 30.13 30.03 10 9 3 20 9 30 0.02 Rain
3 60 57 53 55 54 52 100 89 78 30.24 30.19 30.15 10 4 0 12 4 15 T Fog , Rain
4 65 55 44 56 50 42 93 77 60 30.17 30.10 30.00 10 10 3 29 10 36 0.47 Rain
5 44 37 30 40 30 20 93 75 56 30.40 30.29 30.16 10 10 7 18 7 23 0.00  
6 45 35 24 27 23 20 88 65 41 30.38 30.23 30.07 10 10 10 14 3 16 0.00  
7 50 45 39 49 43 28 100 82 64 30.06 29.99 29.90 10 4 0 12 2 15 0.95 Rain
8 54 48 41 52 48 38 100 90 80 30.09 29.91 29.82 10 9 0 18 8 22 0.12 Rain
9 56 48 39 54 41 32 93 84 74 30.15 30.01 29.74 10 9 3 12 7 16 0.21 Rain
10 57 47 36 55 47 34 93 89 85 29.83 29.67 29.57 10 7 2 20 9 25 0.87 Rain , Snow
11 38 35 31 34 29 25 92 78 64 30.25 30.03 29.81 10 9 7 14 6 17 T Rain , Snow
12 40 32 24 26 23 20 92 68 44 30.47 30.38 30.20 10 9 7 9 1 12 0.00  
13 43 32 21 25 21 17 88 64 39 30.47 30.41 30.32 10 9 7 9 1 13 0.00  
14 48 36 24 27 24 19 81 62 42 30.34 30.29 30.22 10 10 2 12 2 15 0.00  
15 50 40 30 32 26 23 85 61 36 30.25 30.12 29.92 10 10 10 12 4 14 0.01 Rain
16 56 51 46 49 43 30 83 66 49 29.89 29.79 29.69 10 10 7 10 6 15 T Rain
17 55 51 46 50 48 45 96 87 77 29.78 29.67 29.51 10 8 2 14 4 18 0.81 Rain
18 47 41 35 45 35 28 93 77 60 29.86 29.70 29.50 10 9 1 22 9 25 0.03 Rain
19 44 37 30 36 34 29 92 79 65 30.19 29.99 29.76 10 9 6 14 4 16 0.01 Rain , Snow
20 46 39 31 43 36 31 93 78 62 30.17 29.72 29.33 10 7 3 22 12 35 0.59 Rain
21 41 35 29 29 25 23 85 75 64 29.73 29.47 29.33 10 6 0 29 17 38 0.12 Fog , Snow
22 31 29 26 25 21 18 85 74 63 30.13 29.99 29.71 10 9 2 32 15 40 0.04 Snow
23 38 30 21 23 20 18 84 68 52 30.09 30.01 29.87 10 10 10 13 6 17 0.00  
24 37 29 21 34 27 19 100 82 64 30.04 29.91 29.76 10 6 0 10 4 13 0.05 Fog , Rain
25 35 34 32 33 28 25 100 85 69 30.24 30.13 29.93 10 7 1 13 7 17 T Rain
26 32 29 26 27 24 23 92 82 72 30.18 29.81 29.58 10 5 0 22 11 30 0.70 Rain , Snow
27 32 30 27 28 25 22 92 81 69 30.14 29.90 29.62 10 7 2 24 13 30 T Snow
28 32 29 25 22 21 19 81 75 69 30.19 30.11 29.93 10 10 7 9 4 12 0.00  
29 31 29 26 27 25 21 92 84 75 29.97 29.77 29.62 9 3 0 18 9 23 0.38 Fog , Snow
30 29 27 24 24 20 17 85 80 74 30.39 30.26 29.99 10 8 3 23 12 29 0.02 Snow
31 34 27 20 28 22 17 92 74 56 30.35 30.16 30.01 10 8 0 20 9 25 0.11 Snow