Weather History for Johnstown, PA

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 81 °F 68 °F 52 °F
Mean Temperature 72 °F 59 °F 46 °F
Min Temperature 66 °F 52 °F 39 °F
Degree Days  
Heating Degree Days (base 65) 18 7 0 208
Cooling Degree Days (base 65) 8 1 0 43
Growing Degree Days (base 50) 22 10 0 288
Dew Point  
Dew Point 68 °F 52 °F 31 °F
Precipitation  
Precipitation 1.39 in 0.15 in 0.00 in 4.55 in
Snowdepth - - - -
Wind  
Wind 23 mph 7 mph 0 mph
Gust Wind 34 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.38 in 30.07 in 29.60 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 11, 2012 Rise Set
Actual Time 6:52 AM EDT 7:30 PM EDT
Civil Twilight 6:25 AM EDT 7:57 PM EDT
Nautical Twilight 5:52 AM EDT 8:29 PM EDT
Astronomical Twilight 5:19 AM EDT 9:02 PM EDT
Moon 2:07 AM EDT (9/11) 4:39 PM EDT (9/11)
Length of Visible Light 13h 32m
Length of Day
12h 37m
Waning Crescent, 21% of the Moon is Illuminated
Sep 11
Waning Crescent
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter

Weather History Calendar

Precipitation Actual month total 4.55 Average Month Total: 3.68
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Thunderstorm
Actual:
80 | 66 0.00
Average:
81 | 56 0.05
Rain
Actual:
73 | 64 0.00
Average:
82 | 56 0.16
Rain
Actual:
73 | 66 0.00
Average:
80 | 57 0.15
Thunderstorm
Actual:
79 | 66 0.40
Average:
80 | 57 0.17
Rain
Actual:
79 | 66 0.05
Average:
81 | 57 0.07
Scattered Clouds
Actual:
81 | 64 0.00
Average:
79 | 57 0.14
Thunderstorm
Actual:
81 | 63 0.09
Average:
79 | 56 0.11
Rain
Actual:
69 | 53 0.38
Average:
80 | 55 0.19
Partly Cloudy
Actual:
63 | 51 0.00
Average:
81 | 54 0.07
Scattered Clouds
Actual:
62 | 46 0.00
Average:
81 | 53 0.06
Clear
Actual:
69 | 43 0.00
Average:
80 | 53 0.03
Clear
Actual:
75 | 53 0.00
Average:
78 | 54 0.05
Scattered Clouds
Actual:
75 | 55 0.00
Average:
77 | 53 0.17
Rain
Actual:
75 | 54 0.04
Average:
79 | 55 0.22
Fog
Actual:
62 | 46 0.00
Average:
76 | 52 0.14
Clear
Actual:
66 | 46 0.00
Average:
75 | 51 0.08
Rain
Actual:
72 | 50 0.00
Average:
76 | 53 0.26
Rain
Actual:
63 | 50 1.09
Average:
77 | 53 0.19
Partly Cloudy
Actual:
57 | 45 0.00
Average:
75 | 53 0.13
Clear
Actual:
69 | 42 0.00
Average:
75 | 53 0.08
Partly Cloudy
Actual:
71 | 55 0.00
Average:
75 | 53 0.13
Rain
Actual:
66 | 46 0.01
Average:
73 | 52 0.13
Mostly Cloudy
Actual:
55 | 42 0.02
Average:
69 | 48 0.11
Thunderstorm
Actual:
54 | 39 0.19
Average:
71 | 48 0.06
Rain
Actual:
64 | 41 0.02
Average:
71 | 48 0.13
Rain
Actual:
62 | 55 0.47
Average:
71 | 49 0.11
Rain
Actual:
64 | 57 1.39
Average:
72 | 47 0.11
Rain
Actual:
60 | 46 0.10
Average:
72 | 47 0.14
Fog
Actual:
57 | 42 0.00
Average:
70 | 47 0.10
Thunderstorm
Actual:
52 | 42 0.30
Average:
70 | 45 0.14
 

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
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 80 72 66 67 65 62 90 76 64 30.19 30.12 30.08 10 10 10 12 8 20 0.00 Rain , Thunderstorm
2 73 68 64 67 65 64 100 91 78 30.14 30.09 30.01 10 7 0 8 3 - 0.00 Fog , Rain
3 73 70 66 67 66 64 100 90 78 30.11 30.06 30.00 10 7 1 13 6 18 0.00 Rain
4 79 72 66 68 67 64 100 87 62 30.04 29.95 29.86 10 8 1 15 6 22 0.40 Rain , Thunderstorm
5 79 72 66 68 65 61 100 87 56 29.96 29.90 29.84 10 5 0 9 6 - 0.05 Fog , Rain
6 81 72 64 64 62 60 94 72 52 29.96 29.93 29.89 10 10 9 9 3 - 0.00  
7 81 71 63 64 61 55 94 73 45 30.00 29.94 29.83 10 9 2 10 6 - 0.09 Rain , Thunderstorm
8 69 60 53 63 58 52 100 91 76 29.89 29.75 29.66 10 8 1 22 11 31 0.38 Rain
9 63 56 51 52 50 45 100 83 53 30.05 29.95 29.89 10 9 5 12 7 - 0.00  
10 62 54 46 47 44 40 97 71 50 30.23 30.15 30.06 10 10 7 14 7 - 0.00  
11 69 56 43 44 40 31 89 58 25 30.35 30.30 30.24 10 10 10 8 3 - 0.00  
12 75 64 53 53 48 42 75 60 43 30.38 30.33 30.30 10 10 10 9 5 - 0.00  
13 75 65 55 57 53 50 87 67 43 30.38 30.33 30.28 10 10 10 8 4 - 0.00  
14 75 65 54 58 53 48 100 74 44 30.29 30.23 30.15 10 10 4 15 7 23 0.04 Rain
15 62 54 46 49 47 45 100 81 59 30.32 30.26 30.20 10 9 0 10 6 17 0.00 Fog
16 66 55 46 47 43 35 96 66 35 30.23 30.17 30.12 10 10 6 7 3 - 0.00  
17 72 60 50 58 50 41 93 72 39 30.13 30.04 29.92 10 10 7 15 5 22 0.00 Rain
18 63 56 50 63 57 46 100 93 82 29.90 29.71 29.60 10 7 1 23 11 34 1.09 Rain
19 57 50 45 47 41 34 96 75 45 30.21 30.07 29.91 10 10 10 14 8 20 0.00  
20 69 55 42 50 42 35 77 63 32 30.18 30.10 30.03 10 10 10 13 6 17 0.00  
21 71 63 55 56 52 51 84 70 51 30.04 29.99 29.86 10 10 10 15 7 20 0.00  
22 66 56 46 56 49 40 90 73 59 30.03 29.87 29.80 10 10 10 22 14 31 0.01 Rain
23 55 48 42 42 39 35 90 78 49 30.21 30.12 30.05 10 10 10 16 10 22 0.02  
24 54 46 39 43 37 32 100 75 47 30.26 30.20 30.14 10 9 1 17 6 21 0.19 Rain , Thunderstorm
25 64 52 41 51 40 33 81 60 39 30.17 30.13 30.07 10 10 5 12 7 17 0.02 Rain
26 62 58 55 58 56 52 100 91 80 30.16 30.10 30.05 10 8 2 15 9 24 0.47 Rain
27 64 60 57 61 58 55 100 95 80 30.22 30.16 30.11 10 4 0 9 4 - 1.39 Fog , Rain
28 60 52 46 58 51 44 100 88 67 30.11 30.09 30.05 10 6 0 16 7 20 0.10 Fog , Rain
29 57 48 42 46 44 42 100 88 62 30.08 30.03 29.95 10 5 0 10 5 - 0.00 Fog
30 52 47 42 47 44 41 100 91 80 29.95 29.90 29.86 10 7 0 14 6 - 0.30 Fog , Rain , Thunderstorm