Weather History for San Juan, PR

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Week of September 16, 2012 through September 22, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 93 °F 91 °F 90 °F
Mean Temperature 86 °F 86 °F 85 °F
Min Temperature 81 °F 80 °F 78 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 21 21 20 144
Growing Degree Days (base 50) 36 36 35 249
Dew Point  
Dew Point 78 °F 75 °F 70 °F
Precipitation  
Precipitation 0.05 in 0.02 in 0.00 in 0.12 in
Snowdepth - - - -
Wind  
Wind 20 mph 6 mph 0 mph
Gust Wind 25 mph 21 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.03 in 29.95 in 29.85 in

Weekly Weather History Graph

Weekly Weather History Graph

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Date:

Astronomy

Sep. 16, 2012 Rise Set
Actual Time 6:12 AM AST 6:25 PM AST
Civil Twilight 5:50 AM AST 6:46 PM AST
Nautical Twilight 5:24 AM AST 7:12 PM AST
Astronomical Twilight 4:59 AM AST 7:37 PM AST
Moon 6:33 AM AST (9/16) 6:45 PM AST (9/16)
Length of Visible Light 12h 56m
Length of Day
12h 13m
New Moon, 0% of the Moon is Illuminated
Sep 16
New Moon
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New

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  
16 91 85 79 76 75 72 91 72 52 29.99 29.96 29.92 10 10 10 16 6 22 0.00  
17 92 86 80 77 75 73 85 71 56 30.01 29.97 29.94 10 10 10 16 7 23 T  
18 90 85 80 78 76 75 85 77 68 30.03 29.98 29.94 10 10 10 18 6 23 0.02 Rain , Thunderstorm
19 91 85 79 77 76 74 91 74 56 30.01 29.97 29.91 10 10 8 20 9 25 0.05 Rain
20 91 86 81 76 75 73 85 72 59 29.97 29.91 29.85 10 10 10 17 7 25 0.00  
21 91 86 80 76 74 73 85 72 59 29.96 29.91 29.85 10 10 10 17 4 23 T  
22 93 86 78 78 74 70 91 74 57 30.03 29.98 29.93 10 10 7 20 6 24 0.05 Rain