Weather History for San Juan, PR

Change the Weather History Date:

Wednesday, August 28, 2013

  Actual Average Record
Temperature  
Mean Temperature 85 °F 84 °F  
Max Temperature 90 °F 89 °F 93 °F (1991)
Min Temperature 79 °F 78 °F 71 °F (1959)
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 20 19  
Month to date cooling degree days 531 532  
Year to date cooling degree days 3854 3816  
Since 1 June cooling degree days 1606 1651  
Growing Degree Days 34 (Base 50)    
Moisture  
Dew Point 74 °F    
Average Humidity 75    
Maximum Humidity 85    
Minimum Humidity 64    
Precipitation  
Precipitation 0.02 in 0.21 in 2.38 in (1986)
Month to date precipitation 7.36 4.83  
Year to date precipitation 57.36 32.99  
Sea Level Pressure  
Sea Level Pressure 29.99 in    
Wind  
Wind Speed 9 mph (East)    
Max Wind Speed 22 mph    
Max Gust Speed 26 mph    
Visibility 10 miles    
Events      
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. 28, 2013 Rise Set
Actual Time 6:08 AM AST 6:41 PM AST
Civil Twilight 5:46 AM AST 7:03 PM AST
Nautical Twilight 5:20 AM AST 7:29 PM AST
Astronomical Twilight 4:54 AM AST 7:55 PM AST
Moon No Moon Rise 12:52 PM AST (8/28)
Length of Visible Light 13h 16m
Length of Day
12h 32m
Waning Gibbous, 47% of the Moon is Illuminated
Aug 28
Waning Gibbous
Sep 5
New
Sep 12
First Quarter
Sep 19
Full
Sep 26
Last Quarter

Hourly Weather History & Observations

Time (AST) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 81.0 °F 85.2 °F 72.0 °F 74% 29.99 in 10.0 mi Calm Calm - N/A   Partly Cloudy
1:56 AM 80.1 °F 83.8 °F 72.0 °F 76% 29.97 in 10.0 mi Calm Calm - N/A   Partly Cloudy
2:56 AM 80.1 °F 83.8 °F 72.0 °F 76% 29.96 in 10.0 mi Calm Calm - N/A   Partly Cloudy
3:56 AM 80.1 °F 84.2 °F 73.0 °F 79% 29.96 in 10.0 mi Calm Calm - N/A   Partly Cloudy
4:56 AM 80.1 °F 84.2 °F 73.0 °F 79% 29.96 in 10.0 mi Calm Calm - N/A   Partly Cloudy
5:56 AM 79.0 °F - 73.0 °F 82% 29.97 in 10.0 mi Calm Calm - N/A   Scattered Clouds
6:56 AM 80.1 °F 84.2 °F 73.0 °F 79% 29.99 in 10.0 mi ESE 3.5 mph - N/A   Partly Cloudy
7:56 AM 82.9 °F 89.4 °F 73.9 °F 74% 30.01 in 10.0 mi East 8.1 mph - N/A   Scattered Clouds
8:56 AM 84.0 °F 93.7 °F 77.0 °F 79% 30.02 in 10.0 mi East 6.9 mph - 0.02 in   Scattered Clouds
9:56 AM 86.0 °F 95.1 °F 75.0 °F 70% 30.03 in 10.0 mi East 16.1 mph - N/A   Scattered Clouds
10:56 AM 88.0 °F 98.5 °F 75.9 °F 67% 30.03 in 10.0 mi ENE 15.0 mph - N/A   Scattered Clouds
11:56 AM 88.0 °F 97.5 °F 75.0 °F 65% 30.01 in 10.0 mi ENE 20.7 mph - N/A   Scattered Clouds
12:56 PM 90.0 °F 100.2 °F 75.0 °F 61% 29.99 in 10.0 mi East 13.8 mph 19.6 mph N/A   Scattered Clouds
1:56 PM 89.1 °F 99.1 °F 75.0 °F 63% 29.97 in 10.0 mi ENE 20.7 mph - N/A   Scattered Clouds
2:56 PM 88.0 °F 98.5 °F 75.9 °F 67% 29.97 in 10.0 mi ENE 16.1 mph 21.9 mph N/A   Scattered Clouds
3:56 PM 88.0 °F 98.5 °F 75.9 °F 67% 29.96 in 10.0 mi ENE 19.6 mph 24.2 mph N/A   Scattered Clouds
4:56 PM 87.1 °F 96.3 °F 75.0 °F 67% 29.96 in 10.0 mi ENE 16.1 mph - N/A   Scattered Clouds
5:56 PM 84.9 °F 93.3 °F 75.0 °F 72% 29.97 in 10.0 mi East 11.5 mph - N/A   Scattered Clouds
6:56 PM 84.0 °F 91.9 °F 75.0 °F 74% 29.99 in 10.0 mi East 8.1 mph - N/A   Scattered Clouds
7:56 PM 84.0 °F 92.6 °F 75.9 °F 76% 30.01 in 10.0 mi East 6.9 mph - N/A   Partly Cloudy
8:56 PM 82.9 °F 90.2 °F 75.0 °F 77% 30.04 in 10.0 mi East 5.8 mph - N/A   Partly Cloudy
9:56 PM 84.0 °F 91.9 °F 75.0 °F 74% 30.05 in 10.0 mi ESE 5.8 mph - N/A   Scattered Clouds
10:56 PM 82.9 °F 90.2 °F 75.0 °F 77% 30.04 in 10.0 mi East 8.1 mph - N/A   Scattered Clouds
11:56 PM 82.0 °F 87.9 °F 73.9 °F 76% 30.03 in 10.0 mi ESE 4.6 mph - N/A   Partly Cloudy