Weather History for Williamsburg, VA

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 93 °F 82 °F 68 °F
Mean Temperature 83 °F 72 °F 62 °F
Min Temperature 75 °F 62 °F 51 °F
Degree Days  
Heating Degree Days (base 65) 2 0 0 5
Cooling Degree Days (base 65) 18 7 0 224
Growing Degree Days (base 50) 33 22 12 673
Dew Point  
Dew Point 79 °F 63 °F 43 °F
Precipitation  
Precipitation 0.79 in 0.09 in 0.00 in 2.75 in
Snowdepth - - - -
Wind  
Wind 26 mph 4 mph 0 mph
Gust Wind 33 mph 19 mph 9 mph
Sea Level Pressure  
Sea Level Pressure 30.40 in 30.06 in 29.68 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 22, 2012 Rise Set
Actual Time 6:55 AM EDT 7:03 PM EDT
Civil Twilight 6:29 AM EDT 7:29 PM EDT
Nautical Twilight 5:58 AM EDT 7:59 PM EDT
Astronomical Twilight 5:27 AM EDT 8:30 PM EDT
Moon 2:03 PM EDT (9/22) No Moon Set
Length of Visible Light 12h 59m
Length of Day
12h 07m
Waxing Crescent, 48% of the Moon is Illuminated
Sep 22
Waxing Crescent
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New

Weather History Calendar

Precipitation Actual month total 2.75 Average Month Total: 4.03
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Clear
Actual:
91 | 73 0.00
Average:
85 | 64 0.37
Scattered Clouds
Actual:
93 | 73 0.55
Average:
85 | 63 0.09
Scattered Clouds
Actual:
84 | 73 0.02
Average:
86 | 65 0.09
Partly Cloudy
Actual:
91 | 75 0.00
Average:
84 | 63 0.18
Scattered Clouds
Actual:
91 | 73 0.00
Average:
83 | 63 0.17
Partly Cloudy
Actual:
86 | 69 0.40
Average:
85 | 63 0.15
Clear
Actual:
89 | 66 0.00
Average:
84 | 61 0.08
Partly Cloudy
Actual:
91 | 66 0.36
Average:
83 | 61 0.08
Partly Cloudy
Actual:
80 | 62 0.02
Average:
82 | 60 0.05
Scattered Clouds
Actual:
80 | 59 0.00
Average:
83 | 62 0.14
Clear
Actual:
80 | 55 0.00
Average:
83 | 59 0.08
Clear
Actual:
80 | 55 0.00
Average:
83 | 60 0.06
Scattered Clouds
Actual:
84 | 57 0.00
Average:
83 | 60 0.10
Scattered Clouds
Actual:
87 | 62 0.00
Average:
82 | 60 0.09
Clear
Actual:
80 | 59 0.00
Average:
81 | 60 0.07
Partly Cloudy
Actual:
75 | 57 0.00
Average:
81 | 59 0.12
Partly Cloudy
Actual:
80 | 64 0.21
Average:
81 | 59 0.05
Partly Cloudy
Actual:
86 | 69 0.79
Average:
81 | 59 0.01
Partly Cloudy
Actual:
73 | 57 0.00
Average:
81 | 60 0.07
Clear
Actual:
78 | 57 0.00
Average:
80 | 59 0.13
Clear
Actual:
82 | 57 0.00
Average:
81 | 60 0.21
Scattered Clouds
Actual:
87 | 66 0.07
Average:
80 | 59 0.30
Partly Cloudy
Actual:
73 | 55 0.02
Average:
79 | 56 0.14
Clear
Actual:
75 | 51 0.00
Average:
77 | 55 0.10
Clear
Actual:
78 | 57 0.00
Average:
77 | 54 0.19
Clear
Actual:
84 | 62 0.00
Average:
79 | 56 0.29
Clear
Actual:
86 | 62 0.00
Average:
79 | 56 0.28
Scattered Clouds
Actual:
84 | 66 0.24
Average:
77 | 56 0.08
Mostly Cloudy
Actual:
68 | 57 0.07
Average:
75 | 54 0.11
Scattered Clouds
Actual:
75 | 57 0.00
Average:
76 | 55 0.15
 

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 91 82 73 77 74 72 94 77 52 30.09 30.05 30.02 10 9 2 13 3 20 0.00  
2 93 83 73 79 75 72 94 86 59 30.05 30.02 29.97 10 8 2 14 1 17 0.55  
3 84 78 73 75 74 72 100 88 74 30.09 30.04 30.01 10 8 2 7 2 - 0.02  
4 91 83 75 75 73 70 94 77 52 30.04 29.99 29.93 10 10 7 10 5 - 0.00  
5 91 82 73 75 73 72 94 76 55 29.94 29.89 29.83 10 10 10 14 7 20 0.00  
6 86 78 69 75 72 68 94 85 66 29.95 29.91 29.87 10 9 1 13 4 24 0.40  
7 89 78 66 75 70 66 100 81 52 29.99 29.94 29.86 10 8 2 9 3 - 0.00  
8 91 78 66 75 72 64 100 80 55 29.87 29.79 29.68 10 9 1 26 7 33 0.36  
9 80 71 62 66 62 55 100 77 44 29.96 29.88 29.82 10 10 10 13 4 18 0.02  
10 80 70 59 61 55 52 88 66 39 30.19 30.06 29.96 10 10 10 13 6 20 0.00  
11 80 68 55 61 55 50 94 72 36 30.32 30.27 30.19 10 10 10 10 2 - 0.00  
12 80 68 55 61 57 52 100 75 37 30.40 30.35 30.32 10 10 10 8 1 - 0.00  
13 84 70 57 66 63 55 100 81 54 30.38 30.33 30.28 10 10 5 7 1 - 0.00  
14 87 74 62 70 64 59 100 76 40 30.29 30.21 30.15 10 10 7 8 2 - 0.00  
15 80 70 59 66 59 52 94 69 37 30.20 30.15 30.11 10 10 10 12 4 22 0.00  
16 75 66 57 63 58 55 94 79 53 30.19 30.15 30.11 10 10 10 5 1 - 0.00  
17 80 72 64 70 65 61 94 80 61 30.14 30.09 30.00 10 9 2 10 2 24 0.21  
18 86 78 69 73 70 66 94 85 62 29.99 29.83 29.72 10 9 0 21 10 33 0.79  
19 73 65 57 66 58 54 94 76 53 30.16 30.04 29.84 10 10 4 12 4 18 0.00  
20 78 68 57 61 57 55 94 78 44 30.18 30.13 30.08 10 10 10 6 2 - 0.00  
21 82 70 57 64 60 55 100 77 47 30.10 30.06 30.01 10 10 5 8 2 - 0.00  
22 87 76 66 70 65 61 88 72 46 30.01 29.94 29.86 10 10 3 13 6 21 0.07  
23 73 64 55 66 54 46 94 70 38 30.16 30.08 29.93 10 10 10 9 4 - 0.02  
24 75 63 51 54 50 43 100 71 33 30.24 30.19 30.15 10 10 10 8 2 - 0.00  
25 78 68 57 57 52 50 82 61 39 30.26 30.22 30.13 10 10 10 10 6 16 0.00  
26 84 73 62 66 61 55 83 67 48 30.22 30.18 30.13 10 10 10 12 6 16 0.00  
27 86 74 62 70 64 61 94 74 45 30.20 30.14 30.09 10 10 7 9 4 - 0.00  
28 84 75 66 70 65 63 94 77 54 30.11 30.04 29.96 10 9 2 17 4 24 0.24  
29 68 62 57 66 60 55 94 90 68 30.04 29.98 29.93 10 8 2 9 3 - 0.07  
30 75 66 57 61 55 48 100 72 41 29.94 29.90 29.85 10 10 7 9 3 - 0.00