Weather History for Richmond, VA

Change the Weather History Date:

Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 91 °F 81 °F 70 °F
Mean Temperature 82 °F 71 °F 61 °F
Min Temperature 75 °F 60 °F 49 °F
Degree Days  
Heating Degree Days (base 65) 4 0 0 11
Cooling Degree Days (base 65) 17 6 0 180
Growing Degree Days (base 50) 32 20 10 604
Dew Point  
Dew Point 78 °F 60 °F 38 °F
Precipitation  
Precipitation 1.57 in 0.14 in 0.00 in 4.05 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 29 mph 6 mph 0 mph
Gust Wind 37 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.40 in 30.06 in 29.67 in

Monthly Weather History Graph

Monthly Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Sep. 10, 2012 Rise Set
Actual Time 6:47 AM EDT 7:24 PM EDT
Civil Twilight 6:21 AM EDT 7:50 PM EDT
Nautical Twilight 5:50 AM EDT 8:21 PM EDT
Astronomical Twilight 5:18 AM EDT 8:53 PM EDT
Moon 1:11 AM EDT (9/10) 3:47 PM EDT (9/10)
Length of Visible Light 13h 29m
Length of Day
12h 36m
Waning Crescent, 30% of the Moon is Illuminated
Sep 10
Waning Crescent
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter

Weather History Calendar

Precipitation Actual month total 4.05 Normal Month Total: 4.13
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
91 | 73 T
Average:
86 | 65 0.14
Thunderstorm
Actual:
91 | 72 1.57
Average:
85 | 65 0.14
Rain
Actual:
83 | 71 0.00
Average:
85 | 65 0.14
Partly Cloudy
Actual:
88 | 75 0.00
Average:
85 | 64 0.14
Rain
Actual:
89 | 73 0.17
Average:
85 | 64 0.14
Thunderstorm
Actual:
80 | 67 1.03
Average:
84 | 64 0.14
Fog
Actual:
87 | 63 0.00
Average:
84 | 63 0.14
Thunderstorm
Actual:
88 | 65 0.21
Average:
84 | 63 0.15
Rain
Actual:
80 | 61 T
Average:
84 | 63 0.14
Scattered Clouds
Actual:
77 | 58 0.00
Average:
83 | 62 0.15
Scattered Clouds
Actual:
78 | 54 0.00
Average:
83 | 62 0.15
Scattered Clouds
Actual:
80 | 53 0.00
Average:
83 | 62 0.15
Scattered Clouds
Actual:
81 | 54 0.00
Average:
82 | 61 0.15
Fog
Actual:
83 | 60 0.00
Average:
82 | 61 0.14
Partly Cloudy
Actual:
79 | 56 0.00
Average:
82 | 61 0.14
Mostly Cloudy
Actual:
73 | 56 0.00
Average:
81 | 60 0.15
Rain
Actual:
77 | 60 0.05
Average:
81 | 60 0.14
Thunderstorm
Actual:
78 | 66 0.84
Average:
81 | 59 0.15
Rain
Actual:
74 | 55 0.04
Average:
80 | 59 0.14
Partly Cloudy
Actual:
76 | 51 0.00
Average:
80 | 59 0.13
Fog
Actual:
81 | 56 0.00
Average:
79 | 58 0.13
Partly Cloudy
Actual:
85 | 62 0.00
Average:
79 | 58 0.13
Partly Cloudy
Actual:
73 | 51 0.00
Average:
79 | 57 0.13
Scattered Clouds
Actual:
72 | 49 0.00
Average:
78 | 57 0.13
Partly Cloudy
Actual:
76 | 49 0.00
Average:
78 | 56 0.13
Partly Cloudy
Actual:
84 | 57 0.00
Average:
78 | 56 0.12
Partly Cloudy
Actual:
85 | 59 0.00
Average:
77 | 56 0.13
Thunderstorm
Actual:
85 | 61 0.10
Average:
77 | 55 0.12
Rain
Actual:
70 | 59 0.04
Average:
76 | 55 0.13
Partly Cloudy
Actual:
75 | 53 0.00
Average:
76 | 54 0.12
 

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 75 71 64 94 69 44 30.12 30.06 30.02 10 9 5 15 5 18 T Rain
2 91 82 72 76 72 64 100 72 44 30.05 30.02 29.96 10 8 1 12 4 12 1.57 Rain , Thunderstorm
3 83 77 71 78 74 70 100 85 70 30.09 30.04 30.00 10 7 0 8 4 8 0.00 Fog , Rain
4 88 82 75 78 73 70 100 80 59 30.04 29.98 29.92 10 9 5 17 8 23 0.00  
5 89 81 73 76 73 71 93 77 61 29.92 29.88 29.83 10 10 2 21 10 26 0.17 Rain
6 80 74 67 73 71 67 97 87 76 29.97 29.91 29.86 10 8 0 15 5 18 1.03 Fog , Rain , Thunderstorm
7 87 75 63 71 66 62 100 76 51 29.99 29.94 29.87 10 7 0 10 3 26 0.00 Fog
8 88 77 65 73 69 63 100 80 59 29.87 29.79 29.67 10 7 2 29 10 37 0.21 Fog , Rain , Thunderstorm
9 80 71 61 63 56 51 93 66 39 29.99 29.90 29.85 10 10 10 15 7 18 T Rain
10 77 68 58 54 51 46 80 58 36 30.20 30.08 29.99 10 10 10 16 8 24 0.00  
11 78 66 54 54 51 46 83 58 33 30.33 30.28 30.20 10 10 10 10 2 23 0.00  
12 80 67 53 57 53 50 93 66 39 30.40 30.35 30.32 10 10 9 8 2 10 0.00  
13 81 68 54 64 58 53 100 73 45 30.40 30.34 30.28 10 10 5 9 3 11 0.00  
14 83 72 60 66 63 60 100 74 47 30.30 30.22 30.14 10 9 0 12 3 15 0.00 Fog
15 79 68 56 63 53 45 100 66 32 30.23 30.17 30.12 10 10 9 24 7 30 0.00  
16 73 65 56 57 54 51 90 70 49 30.21 30.16 30.12 10 10 10 9 2 13 0.00  
17 77 69 60 68 63 57 97 81 64 30.14 30.08 29.99 10 10 6 15 4 18 0.05 Rain
18 78 72 66 73 69 65 100 87 74 29.96 29.78 29.71 10 6 0 25 12 33 0.84 Fog , Rain , Thunderstorm
19 74 65 55 66 54 47 93 67 41 30.17 30.04 29.84 10 10 4 21 8 29 0.04 Rain
20 76 64 51 57 53 49 89 68 46 30.19 30.14 30.09 10 10 10 8 3 12 0.00  
21 81 69 56 63 59 54 93 72 51 30.10 30.05 29.99 10 10 8 13 5 16 0.00 Fog
22 85 74 62 66 62 59 93 71 48 29.99 29.93 29.85 10 10 9 20 10 25 0.00  
23 73 62 51 61 46 41 77 56 34 30.17 30.10 29.95 10 10 10 18 7 24 0.00  
24 72 61 49 48 44 38 86 58 29 30.25 30.20 30.17 10 10 10 14 4 24 0.00  
25 76 63 49 55 51 46 86 64 41 30.26 30.21 30.14 10 10 10 16 7 21 0.00  
26 84 71 57 64 59 53 87 68 48 30.19 30.17 30.12 10 10 10 15 8 18 0.00  
27 85 72 59 66 63 58 93 72 51 30.19 30.14 30.09 10 10 10 9 5 16 0.00  
28 85 73 61 68 63 57 97 72 47 30.10 30.03 29.97 10 9 4 17 4 23 0.10 Rain , Thunderstorm
29 70 65 59 57 55 50 90 72 53 30.05 29.99 29.93 10 10 10 12 3 14 0.04 Rain
30 75 64 53 57 52 45 89 65 40 29.94 29.90 29.85 10 10 10 14 5 18 0.00