Weather History for St. Petersburg, FL

Change the Weather History Date:

Tuesday, August 21, 2012

  Actual Average Record
Temperature  
Mean Temperature 82 °F -  
Max Temperature 90 °F 90 °F 95 °F (1951)
Min Temperature 75 °F 76 °F 71 °F (1949)
Cooling Degree Days 17    
Growing Degree Days 32 (Base 50)    
Moisture  
Dew Point 77 °F    
Average Humidity 91    
Maximum Humidity 100    
Minimum Humidity 67    
Precipitation  
Precipitation 2.60 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.02 in    
Wind  
Wind Speed 12 mph (SW)    
Max Wind Speed 23 mph    
Max Gust Speed 32 mph    
Visibility 7 miles    
Events Rain    
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily 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

Aug. 21, 2012 Rise Set
Actual Time 7:04 AM EDT 8:02 PM EDT
Civil Twilight 6:39 AM EDT 8:26 PM EDT
Nautical Twilight 6:11 AM EDT 8:55 PM EDT
Astronomical Twilight 5:41 AM EDT 9:24 PM EDT
Moon 11:02 AM EDT (8/21) 10:34 PM EDT (8/21)
Length of Visible Light 13h 46m
Length of Day
12h 58m
Waxing Crescent, 19% of the Moon is Illuminated
Aug 21
Waxing Crescent
Aug 24
First Quarter
Aug 31
Full
Sep 8
Last Quarter
Sep 15
New

Hourly Weather History & Observations

Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 80.1 °F 86.7 °F 79.0 °F 96% 29.98 in 10.0 mi SSE 8.1 mph - 0.00 in   Clear
1:53 AM 80.1 °F 86.7 °F 79.0 °F 96% 29.96 in 10.0 mi SSE 11.5 mph - N/A   Clear
2:53 AM 80.1 °F 86.7 °F 79.0 °F 96% 29.95 in 10.0 mi South 10.4 mph - N/A   Clear
3:53 AM 80.1 °F 86.7 °F 79.0 °F 96% 29.94 in 10.0 mi South 13.8 mph - N/A   Clear
4:53 AM 80.1 °F 87.4 °F 80.1 °F 100% 29.95 in 10.0 mi South 11.5 mph - N/A   Clear
5:53 AM 81.0 °F 89.9 °F 80.1 °F 97% 29.97 in 10.0 mi SSW 9.2 mph - N/A   Clear
6:53 AM 81.0 °F 89.9 °F 80.1 °F 97% 29.99 in 10.0 mi SSW 9.2 mph - N/A   Clear
7:53 AM 82.0 °F 92.8 °F 80.1 °F 94% 30.00 in 10.0 mi South 12.7 mph - N/A   Clear
8:53 AM 82.9 °F 95.9 °F 81.0 °F 94% 29.99 in 10.0 mi South 13.8 mph - N/A   Clear
9:53 AM 84.9 °F 100.3 °F 81.0 °F 88% 29.98 in 10.0 mi South 12.7 mph - N/A   Clear
10:53 AM 88.0 °F 106.2 °F 81.0 °F 80% 29.98 in 10.0 mi South 11.5 mph - N/A   Partly Cloudy
11:53 AM 89.1 °F 103.2 °F 78.1 °F 70% 29.97 in 10.0 mi SSW 13.8 mph - N/A   Clear
12:53 PM 89.1 °F 104.4 °F 79.0 °F 72% 29.97 in 10.0 mi SW 13.8 mph 21.9 mph N/A   Partly Cloudy
1:53 PM 89.1 °F 103.2 °F 78.1 °F 70% 29.99 in 10.0 mi SW 15.0 mph 24.2 mph N/A   Partly Cloudy
2:53 PM 89.1 °F 101.4 °F 77.0 °F 67% 30.00 in 10.0 mi SW 12.7 mph - N/A   Clear
3:38 PM 89.6 °F 104.7 °F 78.8 °F 70% 29.99 in 10.0 mi SW 11.5 mph - N/A   Mostly Cloudy
3:45 PM 87.8 °F 102.5 °F 78.8 °F 75% 29.99 in 10.0 mi SSW 13.8 mph - N/A   Mostly Cloudy
3:53 PM 88.0 °F 103.1 °F 79.0 °F 75% 29.99 in 10.0 mi WSW 12.7 mph 20.7 mph N/A   Mostly Cloudy
4:01 PM 87.8 °F 104.9 °F 80.6 °F 79% 30.00 in 10.0 mi SW 12.7 mph - N/A   Mostly Cloudy
4:09 PM 87.8 °F 102.5 °F 78.8 °F 75% 29.99 in 10.0 mi WSW 10.4 mph - N/A   Mostly Cloudy
4:19 PM 87.8 °F 102.5 °F 78.8 °F 75% 29.99 in 10.0 mi WSW 12.7 mph - N/A   Mostly Cloudy
4:36 PM 87.8 °F 102.5 °F 78.8 °F 75% 29.99 in 10.0 mi SW 9.2 mph - N/A   Mostly Cloudy
4:50 PM 87.8 °F 102.5 °F 78.8 °F 75% 29.97 in 10.0 mi SSW 10.4 mph - N/A   Mostly Cloudy
4:53 PM 88.0 °F 101.3 °F 78.1 °F 72% 29.97 in 10.0 mi SSW 13.8 mph - N/A   Mostly Cloudy
5:31 PM 80.6 °F 87.1 °F 77.0 °F 89% 30.01 in 7.0 mi ENE 13.8 mph 31.1 mph 0.00 in Rain Light Rain
5:50 PM 78.8 °F - 77.0 °F 94% 29.98 in 5.0 mi NNE 23.0 mph 32.2 mph 0.04 in Rain Light Rain
5:53 PM 77.0 °F - 77.0 °F 100% 29.99 in 8.0 mi North 18.4 mph 26.5 mph 0.05 in Rain Light Rain
6:01 PM 75.2 °F - 75.2 °F 100% 30.00 in 2.5 mi NNW 15.0 mph - 0.09 in Rain Light Rain
6:04 PM 77.0 °F - 77.0 °F 100% 29.97 in 1.0 mi North 21.9 mph 25.3 mph 0.24 in Rain Heavy Rain
6:06 PM 75.2 °F - 75.2 °F 100% 29.98 in 0.8 mi North 19.6 mph 25.3 mph 0.29 in Rain Heavy Rain
6:20 PM 75.2 °F - 75.2 °F 100% 30.03 in 1.0 mi West 9.2 mph - 0.63 in Rain Light Rain
6:34 PM 75.2 °F - - N/A% 30.00 in 1.2 mi North 11.5 mph 20.7 mph 0.88 in Rain Rain
6:37 PM 75.2 °F - - N/A% 30.01 in 3.0 mi NNE 10.4 mph - 0.88 in Rain Rain
6:44 PM 75.2 °F - - N/A% 30.03 in 4.0 mi North 10.4 mph 17.3 mph 0.92 in Rain Light Rain
6:47 PM 75.2 °F - - N/A% 30.04 in 2.5 mi North 8.1 mph - 1.00 in Rain Heavy Rain
6:53 PM 75.0 °F - - N/A% 30.03 in 1.0 mi North 8.1 mph - 1.21 in Rain Heavy Rain
7:00 PM 75.2 °F - - N/A% 30.03 in 0.8 mi NNE 11.5 mph - 0.31 in Rain Heavy Rain
7:07 PM 75.2 °F - - N/A% 30.04 in 1.0 mi NNE 9.2 mph - 0.42 in Rain Heavy Rain
7:22 PM 75.2 °F - - N/A% 30.05 in 2.0 mi North 5.8 mph - 0.55 in Rain Heavy Rain
7:29 PM 75.2 °F - - N/A% 30.05 in 3.0 mi NNW 5.8 mph - 0.57 in Rain Rain
7:36 PM 75.2 °F - 75.2 °F 100% 30.06 in 3.0 mi North 5.8 mph - 0.60 in Rain Rain
7:46 PM 75.2 °F - 75.2 °F 100% 30.07 in 1.8 mi NW 6.9 mph - 0.70 in Rain Heavy Rain
7:53 PM 75.0 °F - 75.0 °F 100% 30.07 in 1.0 mi WNW 6.9 mph - 0.82 in Rain Heavy Rain
8:10 PM 75.2 °F - 75.2 °F 100% 30.06 in 1.2 mi North 12.7 mph - 0.23 in Rain Heavy Rain
8:18 PM 75.2 °F - 75.2 °F 100% 30.06 in 2.5 mi North 8.1 mph - 0.26 in Rain Rain
8:25 PM 75.2 °F - 75.2 °F 100% 30.07 in 5.0 mi North 8.1 mph - 0.28 in Rain Light Rain
8:37 PM 75.2 °F - 75.2 °F 100% 30.07 in 4.0 mi North 4.6 mph - 0.32 in Rain Rain
8:53 PM 75.0 °F - 75.0 °F 100% 30.08 in 4.0 mi Calm Calm - 0.39 in Rain Rain
9:53 PM 77.0 °F - 77.0 °F 100% 30.09 in 10.0 mi East 12.7 mph - 0.12 in Rain Light Rain
10:00 PM 77.0 °F - 75.2 °F 94% 30.09 in 10.0 mi SE 13.8 mph - 0.00 in Rain Light Rain
10:08 PM 75.2 °F - 75.2 °F 100% 30.10 in 10.0 mi SE 15.0 mph - 0.01 in Rain Light Rain
10:25 PM 75.2 °F - 75.2 °F 100% 30.10 in 10.0 mi SE 16.1 mph - 0.01 in Rain Light Rain
10:32 PM 75.2 °F - 75.2 °F 100% 30.10 in 10.0 mi SE 18.4 mph - 0.01 in Rain Light Rain
10:53 PM 75.9 °F - 75.9 °F 100% 30.10 in 10.0 mi SE 17.3 mph - 0.01 in   Overcast
11:28 PM 75.2 °F - 75.2 °F 100% 30.08 in 10.0 mi SSE 17.3 mph - 0.00 in Rain Light Rain
11:53 PM 75.9 °F - 75.9 °F 100% 30.07 in 10.0 mi SSE 13.8 mph - 0.00 in Rain Light Rain