Weather History for San Juan, PR

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Month of September, 2014

  Max Avg Min Sum
Temperature  
Max Temperature 92 °F 89 °F 86 °F
Mean Temperature 85 °F 84 °F 81 °F
Min Temperature 80 °F 78 °F 74 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 20 19 16 426
Growing Degree Days (base 50) 35 33 30 766
Dew Point  
Dew Point 80 °F 76 °F 72 °F
Precipitation  
Precipitation 1.92 in 0.23 in 0.00 in 5.35 in
Snowdepth - - - -
Wind  
Wind 29 mph 7 mph 0 mph
Gust Wind 35 mph 23 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.08 in 29.98 in 29.87 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 13, 2014 Rise Set
Actual Time 6:11 AM AST 6:28 PM AST
Civil Twilight 5:49 AM AST 6:49 PM AST
Nautical Twilight 5:24 AM AST 7:15 PM AST
Astronomical Twilight 4:58 AM AST 7:41 PM AST
Moon 10:14 PM AST (9/13) 10:32 AM AST (9/13)
Length of Visible Light 13h 00m
Length of Day
12h 16m
Waning Gibbous, 74% of the Moon is Illuminated
Sep 13
Waning Gibbous
Sep 15
Last Quarter
Sep 24
New
Oct 1
First Quarter
Oct 8
Full

Weather History Calendar

Precipitation to date: 5.35 Normal to Date: 4.54 Normal Month Total: 5.77
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
90 | 78 0.16
Average:
89 | 78 0.20
Partly Cloudy
Actual:
90 | 78 0.19
Average:
89 | 78 0.21
Scattered Clouds
Actual:
89 | 79 0.02
Average:
89 | 78 0.20
Rain
Actual:
88 | 77 0.09
Average:
89 | 78 0.22
Thunderstorm
Actual:
89 | 77 0.45
Average:
89 | 78 0.22
Rain
Actual:
89 | 78 0.03
Average:
89 | 78 0.21
Thunderstorm
Actual:
86 | 75 0.44
Average:
89 | 78 0.22
Rain
Actual:
89 | 78 0.41
Average:
89 | 78 0.21
Partly Cloudy
Actual:
89 | 77 0.00
Average:
89 | 78 0.21
Thunderstorm
Actual:
89 | 79 0.06
Average:
89 | 78 0.20
Rain
Actual:
88 | 78 0.08
Average:
89 | 78 0.20
Partly Cloudy
Actual:
90 | 80 0.00
Average:
89 | 78 0.20
Partly Cloudy
Actual:
89 | 79 0.10
Average:
89 | 78 0.20
Thunderstorm
Actual:
88 | 77 0.19
Average:
89 | 78 0.19
Rain
Actual:
88 | 78 0.08
Average:
89 | 78 0.18
Partly Cloudy
Actual:
89 | 78 0.04
Average:
89 | 78 0.19
Partly Cloudy
Actual:
89 | 78 0.00
Average:
89 | 78 0.18
Thunderstorm
Actual:
89 | 78 0.06
Average:
89 | 78 0.19
Thunderstorm
Actual:
92 | 74 1.92
Average:
89 | 78 0.18
Thunderstorm
Actual:
90 | 75 0.48
Average:
89 | 78 0.19
Partly Cloudy
Actual:
89 | 79 0.00
Average:
89 | 78 0.18
Thunderstorm
Actual:
88 | 78 0.06
Average:
89 | 78 0.18
Thunderstorm
Actual:
90 | 78 0.49
Average:
89 | 78 0.18
Clear
Forecast:
83 | 81
Average:
89 | 78 0.18
Clear
Forecast:
83 | 81
Average:
89 | 78 0.18
Clear
Forecast:
83 | 81
Average:
89 | 78 0.17
Clear
Forecast:
83 | 81
Average:
89 | 78 0.18
Thunderstorm
Forecast:
83 | 81
Average:
89 | 78 0.17
Thunderstorm
Forecast:
83 | 81
Average:
89 | 78 0.18
Clear
Forecast:
83 | -
Average:
89 | 78 0.17
 

Calendar Legend

Sunny
Clear
Mostly Cloudy
Partly Sunny
Partly Cloudy
Mostly Sunny
Cloudy Rain Snow
Hail
Flurries
Thunderstorms Hazy
Fog
Sleet '?' denotes
'chance of'
Unknown

Daily Weather History & Observations

2014 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  
1 90 84 78 77 75 73 91 78 64 30.05 30.01 29.96 10 10 10 24 8 31 0.16  
2 90 84 78 80 77 75 94 82 70 30.01 29.98 29.95 10 10 10 21 7 26 0.19  
3 89 84 79 78 77 75 91 80 68 30.04 29.99 29.96 10 10 9 20 10 24 0.02  
4 88 83 77 78 77 75 100 84 68 30.04 30.01 29.96 10 10 9 23 9 26 0.09 Rain
5 89 83 77 78 76 73 91 82 72 30.04 30.00 29.97 10 9 2 23 7 26 0.45 Rain , Thunderstorm
6 89 84 78 78 76 74 94 81 68 30.02 29.98 29.94 10 9 8 21 8 25 0.03 Rain
7 86 81 75 78 75 73 100 85 70 30.04 29.99 29.95 10 9 2 18 5 24 0.44 Rain , Thunderstorm
8 89 84 78 79 77 74 97 80 63 30.08 30.03 29.98 10 10 9 20 6 23 0.41 Rain
9 89 83 77 79 76 75 91 80 68 30.04 30.01 29.96 10 10 10 21 5 26 0.00  
10 89 84 79 77 75 73 91 78 64 30.01 29.97 29.93 10 10 10 21 6 25 0.06 Thunderstorm
11 88 83 78 77 75 73 91 77 63 30.00 29.96 29.91 10 10 10 20 8 24 0.08 Rain
12 90 85 80 78 77 73 94 79 63 30.02 29.98 29.95 10 9 7 20 9 24 0.00  
13 89 84 79 78 77 76 85 77 68 30.04 30.00 29.96 10 10 9 22 12 32 0.10  
14 88 83 77 78 77 73 97 86 74 30.04 30.00 29.96 10 10 9 17 9 21 0.19 Rain , Thunderstorm
15 88 83 78 78 76 74 97 85 72 30.04 30.00 29.96 10 10 9 16 5 21 0.08 Rain
16 89 84 78 76 75 75 91 80 68 30.02 29.97 29.93 10 10 10 18 6 22 0.04  
17 89 84 78 77 75 73 85 74 63 29.99 29.96 29.91 10 10 10 16 7 21 0.00  
18 89 84 78 79 78 72 97 86 74 29.98 29.95 29.89 10 10 10 16 5 21 0.06 Thunderstorm
19 92 83 74 79 76 73 100 80 59 29.99 29.96 29.91 10 10 9 23 9 28 1.92 Rain , Thunderstorm
20 90 83 75 77 75 73 91 75 59 30.03 29.97 29.92 10 9 1 29 5 35 0.48 Rain , Thunderstorm
21 89 84 79 78 76 75 91 80 68 30.06 30.00 29.96 10 10 10 21 8 25 0.00  
22 88 83 78 79 77 75 91 83 75 30.00 29.94 29.87 10 10 8 16 9 22 0.06 Rain , Thunderstorm
23 90 84 78 79 77 73 91 81 70 29.98 29.93 29.90 10 10 8 21 6 24 0.49 Rain , Thunderstorm