Weather History for Washington, PA

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 89 °F 73 °F 59 °F
Mean Temperature 76 °F 61 °F 48 °F
Min Temperature 69 °F 50 °F 35 °F
Degree Days  
Heating Degree Days (base 65) 18 6 0 181
Cooling Degree Days (base 65) 12 2 0 72
Growing Degree Days (base 50) 26 11 0 344
Dew Point  
Dew Point 72 °F 53 °F 34 °F
Precipitation  
Precipitation 0.78 in 0.06 in 0.00 in 1.90 in
Snowdepth - - - -
Wind  
Wind 18 mph 3 mph 0 mph
Gust Wind 29 mph 18 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.37 in 30.06 in 29.61 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 09, 2012 Rise Set
Actual Time 6:56 AM EDT 7:39 PM EDT
Civil Twilight 6:29 AM EDT 8:06 PM EDT
Nautical Twilight 5:56 AM EDT 8:38 PM EDT
Astronomical Twilight 5:23 AM EDT 9:12 PM EDT
Moon 12:24 AM EDT (9/9) 3:23 PM EDT (9/9)
Length of Visible Light 13h 37m
Length of Day
12h 42m
Last Quarter, 39% of the Moon is Illuminated
Sep 9
Last Quarter
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter

Weather History Calendar

Precipitation Actual month total 1.90 Average Month Total: 3.45
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Thunderstorm
Actual:
84 | 69 0.30
Average:
77 | 55 0.07
Partly Cloudy
Actual:
80 | 66 0.01
Average:
77 | 54 0.07
Thunderstorm
Actual:
84 | 64 0.00
Average:
77 | 54 0.07
Thunderstorm
Actual:
84 | 68 0.00
Average:
76 | 54 0.07
Partly Cloudy
Actual:
84 | 66 0.00
Average:
76 | 54 0.07
Scattered Clouds
Actual:
89 | 64 0.00
Average:
76 | 53 0.07
Thunderstorm
Actual:
84 | 60 0.02
Average:
75 | 53 0.07
Thunderstorm
Actual:
73 | 53 0.53
Average:
75 | 53 0.07
Partly Cloudy
Actual:
69 | 50 0.00
Average:
74 | 52 0.07
Scattered Clouds
Actual:
69 | 42 0.00
Average:
74 | 52 0.07
Clear
Actual:
75 | 41 0.00
Average:
73 | 51 0.08
Clear
Actual:
80 | 42 0.00
Average:
73 | 51 0.08
Scattered Clouds
Actual:
82 | 48 0.00
Average:
73 | 51 0.08
Partly Cloudy
Actual:
82 | 53 0.00
Average:
72 | 50 0.08
Partly Cloudy
Actual:
71 | 46 0.00
Average:
72 | 50 0.09
Clear
Actual:
71 | 42 0.00
Average:
71 | 49 0.09
Scattered Clouds
Actual:
78 | 39 0.00
Average:
71 | 49 1.05
Mostly Cloudy
Actual:
69 | 50 0.00
Average:
70 | 49 0.09
Scattered Clouds
Actual:
62 | 39 0.00
Average:
70 | 48 0.10
Scattered Clouds
Actual:
73 | 35 0.00
Average:
69 | 48 0.10
Partly Cloudy
Actual:
75 | 57 0.00
Average:
69 | 48 0.10
Partly Cloudy
Actual:
69 | 48 0.00
Average:
69 | 47 0.10
Partly Cloudy
Actual:
60 | 35 0.00
Average:
68 | 47 0.10
Scattered Clouds
Actual:
60 | 35 0.00
Average:
68 | 47 0.09
Partly Cloudy
Actual:
66 | 37 0.00
Average:
68 | 46 0.09
Thunderstorm
Actual:
66 | 57 0.01
Average:
67 | 46 0.09
Overcast
Actual:
66 | 59 0.78
Average:
67 | 45 0.09
Partly Cloudy
Actual:
62 | 44 0.02
Average:
67 | 45 0.09
Thunderstorm
Actual:
64 | 37 0.08
Average:
66 | 44 0.08
Thunderstorm
Actual:
59 | 42 0.15
Average:
66 | 44 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

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 84 76 69 72 69 66 100 78 58 30.17 30.13 30.07 10 10 5 9 4 18 0.30 Thunderstorm
2 80 73 66 72 68 66 100 90 61 30.10 30.05 29.99 10 7 0 7 2 - 0.01  
3 84 74 64 72 69 63 100 85 62 30.04 29.99 29.96 10 8 0 9 2 - 0.00 Thunderstorm
4 84 76 68 72 70 68 100 86 62 30.01 29.93 29.86 10 9 2 9 2 - 0.00 Thunderstorm
5 84 75 66 70 66 63 100 79 48 29.94 29.90 29.87 10 8 2 7 2 - 0.00  
6 89 76 64 68 64 57 100 74 35 29.96 29.93 29.89 10 8 0 10 2 16 0.00  
7 84 72 60 70 66 61 100 84 51 30.00 29.93 29.79 10 6 0 9 2 - 0.02 Thunderstorm
8 73 63 53 64 59 52 100 85 68 29.91 29.77 29.65 10 10 6 13 6 28 0.53 Thunderstorm
9 69 60 50 55 51 46 100 75 43 30.07 29.97 29.89 10 10 2 12 4 22 0.00  
10 69 56 42 50 46 41 100 75 40 30.24 30.17 30.08 10 8 0 12 2 17 0.00  
11 75 58 41 54 46 39 100 73 36 30.34 30.28 30.24 10 7 0 8 1 - 0.00  
12 80 61 42 57 49 41 100 73 32 30.36 30.31 30.28 10 8 0 7 1 - 0.00  
13 82 65 48 61 55 48 100 73 37 30.37 30.31 30.26 10 8 0 7 1 - 0.00  
14 82 68 53 59 56 52 100 76 39 30.29 30.24 30.16 10 8 0 18 3 22 0.00  
15 71 58 46 54 49 45 100 80 38 30.34 30.27 30.19 10 7 0 9 1 - 0.00  
16 71 56 42 52 43 36 100 71 28 30.22 30.17 30.10 10 8 0 8 1 - 0.00  
17 78 58 39 61 47 37 100 72 32 30.11 30.02 29.90 10 9 2 9 1 - 0.00  
18 69 60 50 64 59 48 100 92 72 29.95 29.73 29.61 10 8 2 14 3 22 0.00  
19 62 50 39 48 40 36 93 70 37 30.19 30.12 29.95 10 10 8 8 4 - 0.00  
20 73 54 35 52 44 34 100 69 31 30.16 30.06 29.99 10 9 1 10 2 16 0.00  
21 75 66 57 55 53 46 94 69 41 30.03 29.97 29.81 10 10 10 13 4 23 0.00  
22 69 60 48 59 50 39 94 65 37 30.11 29.88 29.76 10 10 5 16 9 29 0.00  
23 60 48 35 45 40 34 100 74 42 30.20 30.16 30.10 10 10 8 12 4 16 0.00  
24 60 48 35 45 38 34 100 71 36 30.28 30.19 30.11 10 8 0 15 3 21 0.00  
25 66 52 37 54 43 36 100 72 46 30.15 30.10 30.03 10 10 10 12 3 20 0.00  
26 66 62 57 61 58 54 100 89 77 30.13 30.09 30.04 10 10 5 10 6 20 0.01 Thunderstorm
27 66 62 59 63 61 57 100 95 88 30.21 30.15 30.09 10 5 0 10 2 22 0.78  
28 62 53 44 57 50 43 100 84 59 30.17 30.12 30.08 10 7 0 9 3 - 0.02  
29 64 50 37 50 43 36 100 80 48 30.11 30.04 29.96 10 7 0 15 1 23 0.08 Thunderstorm
30 59 50 42 52 46 41 100 89 67 29.95 29.91 29.88 10 7 0 13 1 - 0.15 Thunderstorm