Weather History for San Juan, PR

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Week of September 15, 2013 through September 21, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 95 °F 91 °F 89 °F
Mean Temperature 87 °F 85 °F 84 °F
Min Temperature 80 °F 79 °F 78 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 22 20 19 142
Growing Degree Days (base 50) 37 35 34 247
Dew Point  
Dew Point 77 °F 75 °F 66 °F
Precipitation  
Precipitation 0.84 in 0.32 in 0.00 in 1.58 in
Snowdepth - - - -
Wind  
Wind 30 mph 5 mph 0 mph
Gust Wind 38 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.01 in 29.93 in 29.84 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Sep. 16, 2013 Rise Set
Actual Time 6:12 AM AST 6:25 PM AST
Civil Twilight 5:50 AM AST 6:47 PM AST
Nautical Twilight 5:24 AM AST 7:12 PM AST
Astronomical Twilight 4:59 AM AST 7:38 PM AST
Moon 4:15 PM AST (9/16) 3:14 AM AST (9/16)
Length of Visible Light 12h 56m
Length of Day
12h 13m
Waxing Gibbous, 90% of the Moon is Illuminated
Sep 16
Waxing Gibbous
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter

Daily Weather History & Observations

2013 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  
15 90 84 78 77 75 74 91 78 64 30.01 29.96 29.92 10 10 10 20 7 23 0.00  
16 91 86 80 77 76 73 85 74 63 30.01 29.96 29.90 10 10 10 20 7 24 0.01  
17 90 85 80 77 76 75 85 75 64 29.98 29.93 29.89 10 10 10 20 7 23 T  
18 91 85 79 77 75 74 85 75 64 29.97 29.91 29.87 10 10 9 22 4 25 0.84 Rain
19 95 87 79 77 75 66 85 67 49 29.98 29.93 29.88 10 10 9 30 4 38 0.09 Rain , Thunderstorm
20 94 86 78 77 75 70 85 69 52 29.95 29.91 29.87 10 10 1 18 3 33 0.64 Rain , Thunderstorm
21 89 84 79 77 75 73 85 77 68 29.92 29.88 29.84 10 10 10 13 3 17 T