Weather History for Johnstown, PA

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Month of December, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 62 °F 37 °F 17 °F
Mean Temperature 57 °F 31 °F 13 °F
Min Temperature 52 °F 24 °F 5 °F
Degree Days  
Heating Degree Days (base 65) 52 34 8 1063
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 6 0 0 12
Dew Point  
Dew Point 57 °F 24 °F -1 °F
Precipitation  
Precipitation 0.83 in 0.13 in 0.00 in 3.17 in
Snowdepth - - - -
Wind  
Wind 35 mph 11 mph 0 mph
Gust Wind 46 mph 26 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.57 in 30.06 in 29.54 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 20, 2013 Rise Set
Actual Time 7:34 AM EST 4:52 PM EST
Civil Twilight 7:03 AM EST 5:22 PM EST
Nautical Twilight 6:29 AM EST 5:57 PM EST
Astronomical Twilight 5:56 AM EST 6:30 PM EST
Moon 8:11 PM EST (12/20) 9:26 AM EST (12/20)
Length of Visible Light 10h 19m
Length of Day
9h 17m
Waning Gibbous, 90% of the Moon is Illuminated
Dec 20
Waning Gibbous
Dec 25
Last Quarter
Jan 1
New
Jan 7
First Quarter
Jan 15
Full

Weather History Calendar

Precipitation Actual month total 3.17 Normal Month Total: 2.57
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Partly Cloudy
Actual:
40 | 23 0.00
Average:
39 | 27 0.09
Partly Cloudy
Actual:
45 | 34 0.00
Average:
39 | 27 0.10
Rain
Actual:
48 | 35 0.01
Average:
38 | 26 0.10
Partly Cloudy
Actual:
56 | 35 0.00
Average:
38 | 26 0.08
Rain
Actual:
61 | 42 0.40
Average:
38 | 25 0.09
Snow
Actual:
42 | 26 0.73
Average:
37 | 25 0.09
Snow
Actual:
26 | 15 0.01
Average:
37 | 25 0.09
Snow
Actual:
25 | 11 0.11
Average:
37 | 24 0.09
Snow
Actual:
34 | 24 0.02
Average:
36 | 24 0.08
Snow
Actual:
27 | 18 0.01
Average:
36 | 23 0.08
Snow
Actual:
24 | 15 T
Average:
36 | 23 0.08
Snow
Actual:
17 | 9 T
Average:
36 | 23 0.08
Scattered Clouds
Actual:
28 | 15 0.00
Average:
35 | 22 0.08
Snow
Actual:
31 | 26 0.11
Average:
35 | 22 0.07
Snow
Actual:
33 | 17 0.02
Average:
35 | 22 0.06
Snow
Actual:
24 | 12 T
Average:
35 | 22 0.07
Snow
Actual:
31 | 23 0.08
Average:
35 | 21 0.07
Snow
Actual:
24 | 20 0.02
Average:
35 | 21 0.07
Rain
Actual:
46 | 24 T
Average:
34 | 21 0.08
Rain
Actual:
51 | 43 0.03
Average:
34 | 21 0.08
Rain
Actual:
59 | 50 0.52
Average:
34 | 20 0.09
Rain
Actual:
62 | 52 0.17
Average:
34 | 20 0.09
Snow
Actual:
52 | 25 0.05
Average:
34 | 20 0.10
Snow
Actual:
25 | 8 T
Average:
34 | 20 0.09
Snow
Actual:
22 | 5 T
Average:
34 | 20 0.09
Snow
Actual:
29 | 20 0.02
Average:
34 | 20 0.09
Partly Cloudy
Actual:
34 | 19 T
Average:
33 | 19 0.08
Clear
Actual:
48 | 30 0.00
Average:
33 | 19 0.08
Rain
Actual:
44 | 34 0.83
Average:
33 | 19 0.08
Snow
Actual:
35 | 17 0.02
Average:
33 | 19 0.07
Snow
Actual:
21 | 17 0.01
Average:
33 | 19 0.08
 

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 40 32 23 29 24 19 88 71 54 30.27 30.11 29.98 10 10 10 12 7 17 0.00  
2 45 40 34 33 31 27 82 74 65 29.97 29.88 29.81 10 10 10 10 5 14 0.00  
3 48 42 35 38 35 31 92 77 61 29.95 29.90 29.83 10 8 4 10 4 16 0.01 Rain
4 56 46 35 42 37 33 92 77 61 30.05 29.99 29.95 10 7 5 14 6 21 0.00  
5 61 52 42 57 51 42 100 86 72 29.99 29.93 29.90 10 6 0 20 9 26 0.40 Fog , Rain
6 42 34 26 41 29 25 100 96 92 30.22 30.07 29.95 10 4 0 14 8 19 0.73 Fog , Rain , Snow
7 26 21 15 25 19 11 100 89 77 30.57 30.35 30.14 10 7 1 18 10 23 0.01 Snow
8 25 18 11 23 15 8 100 90 80 30.56 30.35 30.16 10 5 0 18 7 24 0.11 Fog , Rain , Snow
9 34 29 24 34 29 23 100 93 85 30.17 30.01 29.94 10 4 0 23 13 32 0.02 Fog , Rain , Snow
10 27 23 18 22 16 8 92 75 57 30.20 29.99 29.90 10 5 0 30 15 39 0.01 Fog , Snow
11 24 20 15 18 11 6 92 72 52 30.32 30.25 30.14 10 7 1 32 16 44 T Snow
12 17 13 9 14 6 -1 88 71 53 30.42 30.28 30.19 10 6 1 26 16 35 T Snow
13 28 22 15 13 9 1 61 56 50 30.29 30.22 30.19 10 10 10 30 14 43 0.00  
14 31 29 26 30 24 12 92 71 50 30.26 29.98 29.64 10 4 0 21 11 31 0.11 Fog , Rain , Snow
15 33 25 17 33 25 5 100 84 67 29.95 29.68 29.54 10 3 0 35 19 44 0.02 Fog , Rain , Snow
16 24 18 12 21 12 5 96 76 56 30.14 30.04 29.92 10 4 1 32 9 39 T Snow
17 31 27 23 29 25 21 100 89 78 30.05 29.92 29.84 10 5 1 20 10 28 0.08 Rain , Snow
18 24 22 20 20 18 15 92 83 74 30.19 30.05 29.91 10 4 1 21 15 31 0.02 Snow
19 46 35 24 32 24 12 68 56 43 30.10 30.08 30.06 10 10 8 30 16 46 T Rain
20 51 47 43 46 34 21 93 65 37 30.04 29.97 29.92 10 10 8 16 11 23 0.03 Rain
21 59 55 50 55 51 46 100 89 77 29.94 29.88 29.77 10 9 2 17 11 24 0.52 Rain
22 62 57 52 56 51 48 93 83 72 29.96 29.85 29.67 10 10 3 28 14 39 0.17 Rain
23 52 39 25 48 35 17 100 84 68 30.25 30.06 29.94 10 7 0 29 13 35 0.05 Fog , Rain , Snow
24 25 17 8 20 13 2 92 76 59 30.48 30.23 30.12 10 5 0 28 14 33 T Fog , Snow
25 22 14 5 10 6 3 91 74 56 30.51 30.40 30.26 10 10 5 17 7 21 T Snow
26 29 25 20 24 19 10 96 77 57 30.33 30.16 30.06 10 6 0 25 13 33 0.02 Fog , Snow
27 34 27 19 21 16 10 73 56 39 30.35 30.31 30.22 10 10 10 24 11 34 T  
28 48 39 30 24 21 17 61 50 38 30.27 30.19 30.08 10 10 10 21 11 29 0.00  
29 44 39 34 38 35 16 100 67 33 30.04 29.73 29.58 10 4 0 25 9 40 0.83 Fog , Rain
30 35 26 17 34 20 10 100 87 73 30.17 29.99 29.76 10 5 1 29 11 35 0.02 Rain , Snow
31 21 19 17 19 15 11 92 83 73 30.28 30.06 29.95 10 3 0 28 16 37 0.01 Fog , Snow