Weather History for San Juan, PR

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 87 °F 85 °F 81 °F
Mean Temperature 83 °F 80 °F 78 °F
Min Temperature 78 °F 74 °F 71 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 18 15 13 455
Growing Degree Days (base 50) 32 29 28 897
Dew Point  
Dew Point 75 °F 69 °F 63 °F
Precipitation  
Precipitation 1.65 in 0.19 in 0.00 in 5.30 in
Snowdepth - - - -
Wind  
Wind 26 mph 7 mph 0 mph
Gust Wind 33 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.12 in 29.97 in 29.83 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 06, 2012 Rise Set
Actual Time 6:43 AM AST 5:47 PM AST
Civil Twilight 6:19 AM AST 6:10 PM AST
Nautical Twilight 5:52 AM AST 6:38 PM AST
Astronomical Twilight 5:25 AM AST 7:04 PM AST
Moon No Moon Rise 12:20 PM AST (12/6)
Length of Visible Light 11h 51m
Length of Day
11h 04m
Waning Gibbous, 50% of the Moon is Illuminated
Dec 6
Waning Gibbous
Dec 13
New
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Weather History Calendar

Precipitation Actual month total 5.30 Normal Month Total: 5.02
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
86 | 75 0.06
Average:
85 | 74 0.18
Rain
Actual:
85 | 75 0.09
Average:
85 | 74 0.18
Rain
Actual:
84 | 74 1.65
Average:
85 | 74 0.17
Partly Cloudy
Actual:
86 | 76 0.01
Average:
84 | 74 0.17
Rain
Actual:
86 | 75 0.09
Average:
84 | 74 0.17
Rain
Actual:
85 | 73 0.26
Average:
84 | 74 0.17
Partly Cloudy
Actual:
84 | 74 0.01
Average:
84 | 74 0.17
Partly Cloudy
Actual:
87 | 76 T
Average:
84 | 74 0.17
Rain
Actual:
87 | 76 0.00
Average:
84 | 74 0.17
Rain
Actual:
86 | 76 T
Average:
84 | 74 0.17
Rain
Actual:
85 | 75 0.13
Average:
84 | 74 0.17
Rain
Actual:
87 | 78 0.02
Average:
84 | 74 0.16
Rain
Actual:
81 | 75 0.35
Average:
84 | 74 0.16
Rain
Actual:
85 | 73 0.02
Average:
84 | 74 0.16
Rain
Actual:
84 | 74 0.10
Average:
84 | 73 0.17
Rain
Actual:
84 | 71 0.11
Average:
84 | 73 0.16
Rain
Actual:
85 | 72 0.31
Average:
84 | 73 0.16
Partly Cloudy
Actual:
85 | 72 0.00
Average:
84 | 73 0.16
Rain
Actual:
82 | 73 1.16
Average:
84 | 73 0.16
Rain
Actual:
84 | 75 0.01
Average:
84 | 73 0.16
Rain
Actual:
82 | 73 0.35
Average:
84 | 73 0.15
Rain
Actual:
84 | 73 0.37
Average:
84 | 73 0.15
Partly Cloudy
Actual:
84 | 75 0.00
Average:
84 | 73 0.16
Scattered Clouds
Actual:
85 | 72 0.00
Average:
84 | 73 0.16
Partly Cloudy
Actual:
84 | 74 0.01
Average:
84 | 73 0.16
Partly Cloudy
Actual:
85 | 73 T
Average:
84 | 73 0.16
Scattered Clouds
Actual:
87 | 75 0.01
Average:
84 | 73 0.15
Rain
Actual:
85 | 74 0.07
Average:
83 | 73 0.15
Partly Cloudy
Actual:
84 | 74 0.01
Average:
83 | 73 0.15
Scattered Clouds
Actual:
85 | 72 0.01
Average:
83 | 73 0.14
Rain
Actual:
83 | 74 0.09
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

2012 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 86 81 75 73 72 70 94 82 69 29.97 29.92 29.88 10 10 10 17 3 22 0.06 Rain
2 85 80 75 74 72 70 88 77 65 29.94 29.89 29.83 10 10 10 10 2 16 0.09 Rain
3 84 79 74 74 73 70 94 80 65 29.96 29.90 29.84 10 9 2 15 4 21 1.65 Rain
4 86 81 76 71 68 66 94 75 55 30.01 29.96 29.91 10 10 10 23 11 26 0.01  
5 86 80 75 73 70 67 87 73 59 30.00 29.95 29.91 10 10 7 21 11 25 0.09 Rain
6 85 79 73 72 70 69 87 74 61 29.96 29.92 29.88 10 10 9 21 10 25 0.26 Rain
7 84 79 74 69 66 63 87 73 58 30.00 29.94 29.89 10 10 10 18 7 22 0.01  
8 87 82 76 71 70 67 82 66 50 30.06 29.99 29.94 10 10 10 20 8 24 T  
9 87 82 76 73 71 69 82 70 57 30.09 30.04 29.99 10 10 10 18 8 22 0.00 Rain
10 86 81 76 71 68 65 82 69 55 30.05 30.00 29.95 10 10 10 23 11 29 T Rain
11 85 80 75 73 70 68 87 74 61 30.05 30.00 29.96 10 10 10 26 14 33 0.13 Rain
12 87 83 78 73 71 67 79 68 57 30.06 30.01 29.97 10 10 9 22 13 30 0.02 Rain
13 81 78 75 74 72 67 94 81 67 30.01 29.97 29.91 10 10 2 23 5 32 0.35 Rain
14 85 79 73 72 70 68 93 77 61 29.97 29.92 29.87 10 10 10 13 6 - 0.02 Rain
15 84 79 74 72 69 65 93 78 62 29.99 29.93 29.88 10 10 7 12 2 15 0.10 Rain
16 84 78 71 70 68 65 87 75 62 30.00 29.96 29.92 10 10 5 16 5 20 0.11 Rain
17 85 79 72 71 68 67 93 74 55 30.02 29.97 29.93 10 10 2 18 6 22 0.31 Rain
18 85 79 72 70 68 67 84 73 61 30.02 29.97 29.95 10 10 10 17 5 22 0.00  
19 82 78 73 73 70 66 94 81 67 30.01 29.97 29.93 10 10 2 13 4 17 1.16 Rain
20 84 80 75 71 68 65 71 66 61 30.02 29.97 29.94 10 10 10 17 11 23 0.01 Rain
21 82 78 73 73 71 69 93 81 69 30.01 29.96 29.93 10 8 2 20 7 24 0.35 Rain
22 84 79 73 73 69 65 100 78 55 30.01 29.96 29.92 10 10 10 17 5 22 0.37 Rain
23 84 80 75 70 66 63 82 68 54 30.04 29.99 29.95 10 10 10 18 5 22 0.00  
24 85 79 72 69 67 65 79 69 58 30.03 29.98 29.93 10 10 10 22 7 26 0.00  
25 84 79 74 72 70 68 87 78 69 30.03 29.98 29.94 10 10 10 17 5 21 0.01  
26 85 79 73 72 71 69 87 76 65 30.03 30.00 29.96 10 10 10 18 7 23 T  
27 87 81 75 75 72 71 88 79 70 30.05 30.00 29.96 10 10 10 20 6 23 0.01  
28 85 80 74 72 70 69 87 74 61 30.07 30.01 29.97 10 10 10 21 8 24 0.07 Rain
29 84 79 74 71 69 68 87 75 63 30.07 30.03 29.98 10 10 10 21 8 26 0.01  
30 85 79 72 69 67 65 84 68 51 30.09 30.05 30.01 10 10 10 12 5 18 0.01  
31 83 79 74 71 68 64 87 73 58 30.12 30.06 30.03 10 10 5 17 6 22 0.09 Rain