Weather History for San Juan, PR

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Month of December, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 88 °F 85 °F 80 °F
Mean Temperature 83 °F 80 °F 76 °F
Min Temperature 78 °F 75 °F 70 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 18 15 11 480
Growing Degree Days (base 50) 32 30 26 929
Dew Point  
Dew Point 79 °F 71 °F 64 °F
Precipitation  
Precipitation 2.31 in 0.30 in 0.00 in 7.62 in
Snowdepth - - - -
Wind  
Wind 31 mph 9 mph 0 mph
Gust Wind 38 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.13 in 30.03 in 29.84 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 24, 2013 Rise Set
Actual Time 6:53 AM AST 5:54 PM AST
Civil Twilight 6:29 AM AST 6:18 PM AST
Nautical Twilight 6:01 AM AST 6:45 PM AST
Astronomical Twilight 5:35 AM AST 7:12 PM AST
Moon No Moon Rise 11:36 AM AST (12/24)
Length of Visible Light 11h 49m
Length of Day
11h 01m
Waning Gibbous, 59% of the Moon is Illuminated
Dec 24
Waning Gibbous
Dec 25
Last Quarter
Jan 1
New
Jan 7
First Quarter
Jan 16
Full

Weather History Calendar

Precipitation Actual month total 7.62 Normal Month Total: 5.02
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Rain
Actual:
80 | 71 0.19
Average:
85 | 74 0.18
Scattered Clouds
Actual:
86 | 70 T
Average:
85 | 74 0.18
Rain
Actual:
86 | 75 0.68
Average:
85 | 74 0.17
Rain
Actual:
80 | 71 1.19
Average:
84 | 74 0.17
Thunderstorm
Actual:
81 | 71 2.31
Average:
84 | 74 0.17
Partly Cloudy
Actual:
85 | 74 T
Average:
84 | 74 0.17
Rain
Actual:
84 | 76 0.09
Average:
84 | 74 0.17
Rain
Actual:
85 | 76 0.10
Average:
84 | 74 0.17
Rain
Actual:
87 | 78 0.08
Average:
84 | 74 0.17
Rain
Actual:
87 | 75 0.36
Average:
84 | 74 0.17
Rain
Actual:
85 | 77 0.09
Average:
84 | 74 0.17
Scattered Clouds
Actual:
87 | 77 T
Average:
84 | 74 0.16
Scattered Clouds
Actual:
87 | 76 T
Average:
84 | 74 0.16
Rain
Actual:
86 | 76 0.02
Average:
84 | 74 0.16
Rain
Actual:
85 | 77 0.08
Average:
84 | 73 0.17
Rain
Actual:
86 | 76 0.07
Average:
84 | 73 0.16
Partly Cloudy
Actual:
87 | 75 0.01
Average:
84 | 73 0.16
Rain
Actual:
87 | 76 0.29
Average:
84 | 73 0.16
Partly Cloudy
Actual:
85 | 76 0.22
Average:
84 | 73 0.16
Rain
Actual:
85 | 76 0.38
Average:
84 | 73 0.16
Rain
Actual:
85 | 76 0.11
Average:
84 | 73 0.15
Rain
Actual:
85 | 75 0.21
Average:
84 | 73 0.15
Thunderstorm
Actual:
85 | 76 0.23
Average:
84 | 73 0.16
Rain
Actual:
86 | 73 0.72
Average:
84 | 73 0.16
Scattered Clouds
Actual:
88 | 71 0.00
Average:
84 | 73 0.16
Scattered Clouds
Actual:
87 | 73 T
Average:
84 | 73 0.16
Scattered Clouds
Actual:
86 | 77 T
Average:
84 | 73 0.15
Rain
Actual:
86 | 77 0.02
Average:
83 | 73 0.15
Rain
Actual:
87 | 76 0.14
Average:
83 | 73 0.15
Rain
Actual:
85 | 75 0.01
Average:
83 | 73 0.14
Rain
Actual:
86 | 77 0.02
Average:
83 | 73 0.15
 

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

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 80 76 71 74 72 68 100 87 74 29.94 29.91 29.87 10 9 4 15 4 17 0.19 Rain
2 86 78 70 72 70 68 100 79 57 29.95 29.90 29.84 10 10 10 12 4 18 T  
3 86 81 75 75 73 71 94 80 65 30.02 29.97 29.92 10 10 0 13 2 16 0.68 Fog , Rain
4 80 76 71 75 72 70 100 90 79 30.05 30.01 29.95 10 8 1 20 2 25 1.19 Rain
5 81 76 71 73 71 66 100 87 74 30.10 30.03 29.97 10 8 0 20 4 24 2.31 Fog , Rain , Thunderstorm
6 85 80 74 72 71 68 88 75 61 30.07 30.02 29.98 10 10 9 22 8 26 T  
7 84 80 76 72 69 65 90 74 58 30.09 30.03 29.99 10 10 7 28 15 33 0.09 Rain
8 85 81 76 71 67 64 79 65 51 30.09 30.04 29.99 10 9 2 28 18 35 0.10 Rain
9 87 83 78 73 70 68 85 70 55 30.12 30.07 30.03 10 10 6 28 16 36 0.08 Rain
10 87 81 75 75 72 67 100 75 50 30.11 30.07 30.03 10 10 8 22 9 26 0.36 Rain
11 85 81 77 74 72 66 84 75 65 30.13 30.07 30.03 10 10 6 28 12 32 0.09 Rain
12 87 82 77 73 71 69 82 69 55 30.08 30.03 29.97 10 10 10 18 9 23 T  
13 87 82 76 71 69 66 82 67 51 30.07 30.02 29.98 10 10 10 22 8 25 T  
14 86 81 76 75 70 67 82 72 62 30.10 30.05 30.01 10 10 10 25 9 32 0.02 Rain
15 85 81 77 74 71 65 79 71 62 30.13 30.06 30.02 10 9 2 28 8 33 0.08 Rain
16 86 81 76 79 73 69 91 80 69 30.10 30.04 29.99 10 10 5 20 9 25 0.07 Rain
17 87 81 75 72 70 68 82 70 57 30.11 30.03 29.98 10 10 10 20 8 23 0.01  
18 87 82 76 75 71 67 87 71 55 30.09 30.03 29.99 10 10 7 22 8 26 0.29 Rain
19 85 81 76 76 73 71 88 77 65 30.09 30.04 30.01 10 10 10 22 11 28 0.22  
20 85 81 76 77 72 67 91 76 61 30.09 30.04 29.99 10 9 2 28 15 35 0.38 Rain
21 85 81 76 74 71 68 88 77 65 30.09 30.04 30.00 10 10 10 26 13 33 0.11 Rain
22 85 80 75 73 71 70 82 72 61 30.11 30.07 30.03 10 9 2 25 15 38 0.21 Rain
23 85 81 76 75 71 69 85 73 61 30.11 30.05 30.00 10 10 2 31 14 38 0.23 Rain , Thunderstorm
24 86 80 73 79 73 69 100 85 69 30.00 29.95 29.90 10 10 9 22 3 29 0.72 Rain
25 88 80 71 70 67 65 87 67 46 30.02 29.94 29.88 10 10 10 10 3 15 0.00  
26 87 80 73 75 73 68 87 76 65 30.11 30.04 29.98 10 10 10 20 6 24 T  
27 86 82 77 75 74 72 91 78 65 30.12 30.08 30.04 10 10 9 20 6 26 T  
28 86 82 77 76 74 72 91 81 70 30.11 30.06 30.01 10 10 10 17 6 22 0.02 Rain
29 87 82 76 75 73 71 94 80 65 30.08 30.03 29.98 10 10 6 21 7 26 0.14 Rain
30 85 80 75 76 73 70 87 74 61 30.10 30.06 30.02 10 10 10 25 11 30 0.01 Rain
31 86 82 77 74 71 70 82 74 65 30.13 30.07 30.03 10 10 7 21 11 26 0.02 Rain