Weather History for Lancaster, PA

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Month of August, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 93 °F 83 °F 75 °F
Mean Temperature 81 °F 73 °F 65 °F
Min Temperature 73 °F 64 °F 52 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 16 8 0 247
Growing Degree Days (base 50) 31 23 15 714
Dew Point  
Dew Point 76 °F 63 °F 41 °F
Precipitation  
Precipitation 1.45 in 0.20 in 0.00 in 6.25 in
Snowdepth - - - -
Wind  
Wind 32 mph 5 mph 0 mph
Gust Wind 48 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.24 in 29.88 in 29.02 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Aug. 10, 2011 Rise Set
Actual Time 6:11 AM EDT 8:08 PM EDT
Civil Twilight 5:41 AM EDT 8:38 PM EDT
Nautical Twilight 5:05 AM EDT 9:14 PM EDT
Astronomical Twilight 4:26 AM EDT 9:53 PM EDT
Moon 6:04 PM EDT (8/10) 2:55 AM EDT (8/10)
Length of Visible Light 14h 56m
Length of Day
13h 57m
Waxing Gibbous, 90% of the Moon is Illuminated
Aug 10
Waxing Gibbous
Aug 13
Full
Aug 21
Last Quarter
Aug 28
New
Sep 4
First Quarter

Weather History Calendar

Precipitation Actual month total 6.25 Average Month Total: 3.43
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Thunderstorm
Actual:
93 | 69 0.06
Average:
85 | 64 0.09
Clear
Actual:
91 | 66 0.00
Average:
85 | 64 0.08
Rain
Actual:
82 | 70 0.06
Average:
86 | 65 0.10
Rain
Actual:
75 | 66 0.00
Average:
88 | 66 0.01
Fog
Actual:
86 | 64 0.00
Average:
87 | 65 0.11
Rain
Actual:
82 | 71 0.18
Average:
84 | 63 0.18
Thunderstorm
Actual:
88 | 73 0.64
Average:
83 | 62 0.09
Thunderstorm
Actual:
88 | 73 0.00
Average:
85 | 63 0.07
Thunderstorm
Actual:
84 | 68 0.76
Average:
85 | 65 0.23
Scattered Clouds
Actual:
84 | 64 0.00
Average:
85 | 64 0.08
Scattered Clouds
Actual:
80 | 62 0.00
Average:
84 | 65 0.14
Clear
Actual:
82 | 57 0.00
Average:
84 | 64 0.29
Thunderstorm
Actual:
81 | 59 0.62
Average:
81 | 62 0.06
Rain
Actual:
77 | 69 0.03
Average:
84 | 62 0.05
Partly Cloudy
Actual:
80 | 66 0.00
Average:
85 | 63 0.01
Partly Cloudy
Actual:
82 | 64 0.01
Average:
84 | 63 0.04
Scattered Clouds
Actual:
87 | 60 0.01
Average:
85 | 62 0.08
Thunderstorm
Actual:
84 | 66 0.24
Average:
82 | 62 0.10
Thunderstorm
Actual:
84 | 64 0.04
Average:
81 | 59 0.11
Fog
Actual:
86 | 60 0.01
Average:
81 | 61 0.20
Thunderstorm
Actual:
84 | 68 0.44
Average:
80 | 58 0.13
Partly Cloudy
Actual:
79 | 61 0.05
Average:
80 | 56 0.17
Clear
Actual:
79 | 55 0.00
Average:
81 | 58 0.11
Scattered Clouds
Actual:
84 | 55 0.00
Average:
81 | 59 0.05
Thunderstorm
Actual:
82 | 69 0.39
Average:
81 | 59 0.07
Fog
Actual:
84 | 64 0.01
Average:
82 | 60 0.02
Rain
Actual:
79 | 71 1.45
Average:
83 | 61 0.05
Rain
Actual:
78 | 64 1.24
Average:
84 | 63 0.32
Clear
Actual:
75 | 55 0.00
Average:
83 | 61 0.30
Clear
Actual:
80 | 52 0.00
Average:
82 | 60 0.00
Clear
Actual:
82 | 55 0.01
Average:
83 | 61 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

2011 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Aug high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 93 81 69 68 65 61 90 67 36 30.00 29.90 29.82 10 9 2 17 6 22 0.06 Rain , Thunderstorm
2 91 78 66 66 61 54 93 59 31 29.85 29.79 29.73 10 9 3 14 7 21 0.00  
3 82 76 70 70 66 57 97 80 42 29.75 29.71 29.69 10 5 1 8 3 - 0.06 Rain
4 75 72 66 70 67 65 100 88 76 30.03 29.88 29.72 10 7 2 8 5 - 0.00 Rain
5 86 74 64 68 65 62 100 83 46 30.11 30.06 30.03 10 5 0 12 2 17 0.00 Fog
6 82 76 71 73 69 66 94 81 67 30.06 29.98 29.83 10 10 4 13 6 20 0.18 Rain
7 88 80 73 76 74 72 100 87 67 29.83 29.73 29.60 10 6 2 13 7 20 0.64 Rain , Thunderstorm
8 88 80 73 71 68 65 87 68 48 29.68 29.64 29.59 10 8 4 17 7 22 0.00 Thunderstorm
9 84 76 68 72 68 66 94 87 63 29.66 29.59 29.52 10 5 0 17 4 29 0.76 Fog , Rain , Thunderstorm
10 84 74 64 66 62 57 93 68 42 29.76 29.66 29.60 10 9 6 16 6 - 0.00  
11 80 71 62 60 56 51 84 60 39 29.95 29.86 29.76 10 10 10 10 6 18 0.00  
12 82 70 57 60 55 50 87 62 36 30.08 30.03 29.96 10 10 10 8 3 - 0.00  
13 81 69 59 70 66 57 97 87 64 30.08 30.01 29.95 10 5 1 12 4 - 0.62 Rain , Thunderstorm
14 77 72 69 72 69 66 100 92 76 29.96 29.83 29.73 10 5 1 12 3 - 0.03 Rain
15 80 74 66 68 66 63 96 83 60 29.75 29.71 29.67 10 8 3 15 4 - 0.00  
16 82 73 64 67 63 61 93 75 49 30.06 29.88 29.74 10 10 8 16 7 22 0.01  
17 87 73 60 65 61 56 94 71 36 30.17 30.10 30.06 10 8 2 8 1 - 0.01  
18 84 75 66 71 66 62 93 77 55 30.07 30.00 29.91 10 8 2 13 4 21 0.24 Rain , Thunderstorm
19 84 74 64 66 64 59 97 78 47 29.96 29.92 29.87 10 7 2 20 5 25 0.04 Rain , Thunderstorm
20 86 72 60 68 63 59 100 81 44 30.02 29.98 29.93 10 5 0 7 1 - 0.01 Fog
21 84 76 68 72 68 64 100 85 66 29.98 29.87 29.80 10 6 0 16 5 23 0.44 Fog , Rain , Thunderstorm
22 79 70 61 68 59 49 96 72 39 30.00 29.88 29.80 10 7 1 16 7 22 0.05  
23 79 67 55 55 51 41 87 66 26 30.09 30.05 30.01 10 10 10 9 4 - 0.00  
24 84 68 55 63 59 54 93 70 48 30.10 30.01 29.91 10 10 8 17 6 24 0.00  
25 82 75 69 71 68 65 93 81 67 29.95 29.89 29.84 10 9 3 14 7 20 0.39 Rain , Thunderstorm
26 84 74 64 71 67 64 100 87 55 30.03 29.98 29.91 10 4 0 9 2 - 0.01 Fog
27 79 75 71 73 71 68 100 91 74 29.93 29.73 29.36 10 6 1 30 7 45 1.45 Rain
28 78 70 64 68 63 52 90 80 54 29.80 29.30 29.02 10 7 3 32 24 48 1.24 Rain
29 75 65 55 55 51 47 90 63 38 30.06 29.97 29.83 10 10 10 8 4 - 0.00  
30 80 66 52 58 54 50 97 66 36 30.17 30.13 30.08 10 10 5 6 1 - 0.00  
31 82 68 55 61 57 54 100 76 39 30.24 30.19 30.15 10 7 2 6 1 - 0.01