Weather History for St. Thomas, VI

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Sunday, July 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 84 °F 84 °F  
Max Temperature 91 °F 90 °F 97 °F (1993)
Min Temperature 77 °F 78 °F 68 °F (1999)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0 0  
Since 1 June heating degree days 0 0  
Since 1 July heating degree days 0 0  
Cooling Degree Days 19 19  
Month to date cooling degree days 390 399  
Year to date cooling degree days 3122 3206  
Since 1 June cooling degree days 926 954  
Growing Degree Days 34 (Base 50)    
Moisture  
Dew Point 74 °F    
Average Humidity 75    
Maximum Humidity 91    
Minimum Humidity 59    
Precipitation  
Precipitation 0.10 in 0.09 in 1.21 in (1958)
Month to date precipitation 1.49 1.91  
Year to date precipitation 14.75 15.47  
Sea Level Pressure  
Sea Level Pressure 30.04 in    
Wind  
Wind Speed 12 mph (East)    
Max Wind Speed 25 mph    
Max Gust Speed 32 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Astronomy

Jul. 21, 2013 Rise Set
Actual Time 5:54 AM AST 6:58 PM AST
Civil Twilight 5:30 AM AST 7:21 PM AST
Nautical Twilight 5:02 AM AST 7:49 PM AST
Astronomical Twilight 4:34 AM AST 8:18 PM AST
Moon 5:58 PM AST (7/21) 4:32 AM AST (7/21)
Length of Visible Light 13h 51m
Length of Day
13h 04m
Waxing Gibbous, 98% of the Moon is Illuminated
Jul 21
Waxing Gibbous
Jul 22
Full
Jul 29
Last Quarter
Aug 6
New
Aug 14
First Quarter

Hourly Weather History & Observations

Time (AST) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:43 AM 78.8 °F - 73.4 °F 83% 30.04 in 10.0 mi East 12.7 mph 24.2 mph 0.10 in Rain Light Rain
12:53 AM 78.1 °F - 73.9 °F 87% 30.04 in 10.0 mi East 11.5 mph - 0.10 in   Scattered Clouds
2:53 AM 79.0 °F - 75.9 °F 90% 30.00 in 10.0 mi East 9.2 mph - N/A   Clear
3:53 AM 80.1 °F 85.1 °F 75.0 °F 85% 30.00 in 10.0 mi East 8.1 mph - N/A   Clear
4:53 AM 79.0 °F - 73.9 °F 84% 30.01 in 10.0 mi East 6.9 mph - N/A   Clear
5:53 AM 79.0 °F - 73.9 °F 84% 30.02 in 10.0 mi East 8.1 mph - N/A   Clear
6:53 AM 80.1 °F 84.5 °F 73.9 °F 81% 30.04 in 10.0 mi East 6.9 mph - N/A   Partly Cloudy
7:53 AM 84.0 °F 91.9 °F 75.0 °F 74% 30.05 in 10.0 mi East 12.7 mph - N/A   Clear
8:53 AM 86.0 °F 93.8 °F 73.9 °F 67% 30.06 in 10.0 mi East 13.8 mph 23.0 mph N/A   Clear
9:53 AM 87.1 °F 96.3 °F 75.0 °F 67% 30.06 in 10.0 mi East 15.0 mph 23.0 mph N/A   Partly Cloudy
10:53 AM 89.1 °F 99.1 °F 75.0 °F 63% 30.07 in 10.0 mi East 16.1 mph 23.0 mph N/A   Scattered Clouds
11:53 AM 90.0 °F 99.0 °F 73.9 °F 59% 30.06 in 10.0 mi East 15.0 mph 24.2 mph N/A   Partly Cloudy
12:53 PM 90.0 °F 100.2 °F 75.0 °F 61% 30.05 in 10.0 mi East 18.4 mph 25.3 mph N/A   Scattered Clouds
1:27 PM 89.6 °F 99.8 °F 75.2 °F 62% 30.04 in 10.0 mi ENE 13.8 mph 25.3 mph N/A   Mostly Cloudy
1:53 PM 90.0 °F 99.0 °F 73.9 °F 59% 30.04 in 10.0 mi ENE 15.0 mph 23.0 mph N/A   Mostly Cloudy
2:50 PM 89.6 °F 98.2 °F 73.4 °F 59% 30.02 in 10.0 mi East 15.0 mph 23.0 mph N/A   Overcast
3:53 PM 88.0 °F 95.6 °F 73.0 °F 61% 30.01 in 10.0 mi East 13.8 mph 23.0 mph N/A   Mostly Cloudy
4:53 PM 88.0 °F 93.8 °F 71.1 °F 57% 29.99 in 10.0 mi East 16.1 mph 24.2 mph N/A   Scattered Clouds
5:53 PM 86.0 °F 92.2 °F 72.0 °F 63% 30.00 in 10.0 mi ENE 15.0 mph - N/A   Scattered Clouds
6:21 PM 84.2 °F 89.6 °F 71.6 °F 66% 30.00 in 10.0 mi East 12.7 mph 21.9 mph N/A   Overcast
6:53 PM 82.9 °F 88.8 °F 73.0 °F 72% 30.01 in 10.0 mi East 11.5 mph - N/A   Overcast
7:53 PM 82.0 °F 87.9 °F 73.9 °F 76% 30.03 in 10.0 mi East 11.5 mph 17.3 mph N/A   Overcast
8:53 PM 82.0 °F 87.4 °F 73.0 °F 74% 30.05 in 10.0 mi East 10.4 mph - N/A   Overcast
9:53 PM 82.0 °F 87.4 °F 73.0 °F 74% 30.06 in 10.0 mi East 11.5 mph - N/A   Overcast
10:53 PM 82.0 °F 87.9 °F 73.9 °F 76% 30.07 in 10.0 mi East 8.1 mph - N/A   Scattered Clouds
11:04 PM 80.6 °F 85.4 °F 73.4 °F 79% 30.06 in 10.0 mi East 10.4 mph - N/A   Mostly Cloudy
11:53 PM 81.0 °F 86.7 °F 75.0 °F 82% 30.06 in 10.0 mi East 8.1 mph - N/A   Overcast