Weather History for Johnstown, PA

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Month of September, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 86 °F 68 °F 55 °F
Mean Temperature 75 °F 61 °F 46 °F
Min Temperature 64 °F 55 °F 39 °F
Degree Days  
Heating Degree Days (base 65) 18 5 0 152
Cooling Degree Days (base 65) 10 1 0 29
Growing Degree Days (base 50) 25 11 0 333
Dew Point  
Dew Point 70 °F 57 °F 34 °F
Precipitation  
Precipitation 1.87 in 0.35 in 0.00 in 10.40 in
Snowdepth - - - -
Wind  
Wind 22 mph 6 mph 0 mph
Gust Wind 31 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.42 in 30.04 in 29.69 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 04, 2011 Rise Set
Actual Time 6:45 AM EDT 7:42 PM EDT
Civil Twilight 6:17 AM EDT 8:10 PM EDT
Nautical Twilight 5:44 AM EDT 8:43 PM EDT
Astronomical Twilight 5:10 AM EDT 9:17 PM EDT
Moon 2:29 PM EDT (9/4) No Moon Set
Length of Visible Light 13h 52m
Length of Day
12h 57m
Waxing Crescent, 49% of the Moon is Illuminated
Sep 4
Waxing Crescent
Sep 4
First Quarter
Sep 12
Full
Sep 20
Last Quarter
Sep 27
New

Weather History Calendar

Precipitation Actual month total 10.40 Average Month Total: 3.68
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Thunderstorm
Actual:
75 | 60 0.64
Average:
81 | 56 0.05
Partly Cloudy
Actual:
78 | 64 0.00
Average:
82 | 56 0.16
Fog
Actual:
86 | 64 0.00
Average:
80 | 57 0.15
Thunderstorm
Actual:
82 | 62 1.87
Average:
80 | 57 0.17
Rain
Actual:
64 | 53 0.96
Average:
81 | 57 0.07
Rain
Actual:
55 | 53 1.73
Average:
79 | 57 0.14
Rain
Actual:
64 | 53 0.79
Average:
79 | 56 0.11
Rain
Actual:
71 | 57 0.06
Average:
80 | 55 0.19
Thunderstorm
Actual:
64 | 62 1.29
Average:
81 | 54 0.07
Rain
Actual:
70 | 60 0.01
Average:
81 | 53 0.06
Fog
Actual:
71 | 57 0.00
Average:
80 | 53 0.03
Scattered Clouds
Actual:
70 | 54 0.00
Average:
78 | 54 0.05
Scattered Clouds
Actual:
75 | 57 0.00
Average:
77 | 53 0.17
Rain
Actual:
73 | 62 0.00
Average:
79 | 55 0.22
Rain
Actual:
62 | 42 0.44
Average:
76 | 52 0.14
Clear
Actual:
55 | 39 0.00
Average:
75 | 51 0.08
Scattered Clouds
Actual:
57 | 44 0.00
Average:
76 | 53 0.26
Partly Cloudy
Actual:
61 | 46 0.00
Average:
77 | 53 0.19
Rain
Actual:
59 | 46 0.30
Average:
75 | 53 0.13
Rain
Actual:
66 | 53 0.05
Average:
75 | 53 0.08
Rain
Actual:
70 | 59 0.11
Average:
75 | 53 0.13
Rain
Actual:
71 | 61 0.35
Average:
73 | 52 0.13
Rain
Actual:
66 | 55 0.07
Average:
69 | 48 0.11
Mostly Cloudy
Actual:
66 | 51 0.00
Average:
71 | 48 0.06
Partly Cloudy
Actual:
72 | 57 0.00
Average:
71 | 48 0.13
Partly Cloudy
Actual:
73 | 62 0.00
Average:
71 | 49 0.11
Thunderstorm
Actual:
71 | 60 1.35
Average:
72 | 47 0.11
Rain
Actual:
69 | 55 0.13
Average:
72 | 47 0.14
Rain
Actual:
59 | 51 0.17
Average:
70 | 47 0.10
Rain
Actual:
55 | 42 0.08
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

2011 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 75 66 60 66 62 57 100 90 73 30.26 30.16 30.04 10 6 0 18 7 23 0.64 Fog , Rain , Thunderstorm
2 78 70 64 70 66 64 100 89 73 30.11 30.07 30.03 8 5 1 10 4 - 0.00  
3 86 75 64 70 67 64 100 85 53 30.07 30.01 29.94 8 4 0 9 6 - 0.00 Fog
4 82 72 62 69 64 61 100 89 50 29.96 29.91 29.85 10 5 0 16 6 23 1.87 Fog , Rain , Thunderstorm
5 64 58 53 64 59 53 100 99 93 29.96 29.88 29.82 10 5 0 17 7 26 0.96 Fog , Rain
6 55 54 53 55 54 53 100 100 94 30.06 30.01 29.94 10 5 0 15 7 22 1.73 Fog , Rain
7 64 58 53 61 57 54 100 98 88 30.03 29.99 29.95 10 7 1 10 7 - 0.79 Rain
8 71 64 57 63 60 57 100 95 70 30.02 29.99 29.95 10 7 0 9 3 17 0.06 Fog , Rain
9 64 63 62 64 63 62 100 99 93 29.98 29.95 29.90 10 2 0 10 4 - 1.29 Fog , Rain , Thunderstorm
10 70 65 60 63 61 59 100 95 71 30.07 30.01 29.94 9 3 0 10 2 - 0.01 Fog , Rain
11 71 64 57 59 57 55 100 87 60 30.13 30.09 30.04 10 6 0 9 5 - 0.00 Fog
12 70 62 54 58 56 53 97 80 61 30.13 30.08 30.03 10 10 10 13 7 16 0.00  
13 75 65 57 61 57 55 97 74 52 30.06 29.99 29.94 10 9 6 16 9 22 0.00  
14 73 68 62 64 61 57 94 81 64 30.02 29.97 29.92 10 8 5 14 8 - 0.00 Rain
15 62 52 42 61 50 34 100 93 61 30.29 30.05 29.95 10 4 0 22 8 30 0.44 Fog , Rain
16 55 46 39 42 39 36 93 74 59 30.40 30.35 30.28 10 10 10 12 7 - 0.00  
17 57 50 44 43 42 39 93 76 53 30.41 30.37 30.34 10 10 10 14 5 23 0.00  
18 61 53 46 46 45 42 97 77 53 30.42 30.36 30.31 10 10 8 12 5 16 0.00  
19 59 52 46 54 51 45 100 94 77 30.29 30.16 30.08 10 9 3 17 10 24 0.30 Rain
20 66 60 53 61 58 54 100 94 77 30.18 30.12 30.05 10 7 1 9 6 - 0.05 Rain
21 70 64 59 63 60 57 100 91 73 30.19 30.15 30.10 10 8 4 15 6 23 0.11 Rain
22 71 66 61 64 61 57 100 93 68 30.17 30.13 30.07 10 7 0 12 4 - 0.35 Fog , Rain
23 66 62 55 64 61 55 100 97 86 30.12 30.01 29.92 10 6 0 13 6 18 0.07 Fog , Rain
24 66 58 51 58 54 51 100 89 66 30.14 30.08 30.02 10 8 1 8 5 - 0.00  
25 72 64 57 63 60 57 100 88 68 30.16 30.10 30.00 10 8 2 10 4 18 0.00  
26 73 68 62 64 62 61 100 88 69 30.03 29.98 29.91 10 10 10 16 8 23 0.00  
27 71 64 60 63 61 55 100 91 73 29.96 29.92 29.87 10 7 1 13 5 16 1.35 Rain , Thunderstorm
28 69 62 55 63 59 55 100 97 70 29.94 29.90 29.83 10 4 0 9 3 - 0.13 Fog , Rain
29 59 54 51 57 52 46 100 93 72 29.85 29.79 29.72 10 6 0 18 5 30 0.17 Fog , Rain
30 55 48 42 52 47 40 100 89 72 29.79 29.72 29.69 10 8 1 21 12 31 0.08 Rain