Weather History for San Juan, PR

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Month of January, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 85 °F 83 °F 81 °F
Mean Temperature 79 °F 78 °F 76 °F
Min Temperature 74 °F 72 °F 69 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 14 13 11 388
Growing Degree Days (base 50) 28 27 26 839
Dew Point  
Dew Point 73 °F 68 °F 62 °F
Precipitation  
Precipitation 0.61 in 0.14 in 0.00 in 3.73 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 26 mph 9 mph 0 mph
Gust Wind 35 mph 23 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.19 in 30.05 in 29.96 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Jan. 24, 2012 Rise Set
Actual Time 6:59 AM AST 6:13 PM AST
Civil Twilight 6:35 AM AST 6:36 PM AST
Nautical Twilight 6:09 AM AST 7:02 PM AST
Astronomical Twilight 5:43 AM AST 7:29 PM AST
Moon 7:43 AM AST (1/24) 7:38 PM AST (1/24)
Length of Visible Light 12h 00m
Length of Day
11h 14m
New Moon, 2% of the Moon is Illuminated
Jan 24
New Moon
Jan 31
First Quarter
Feb 7
Full
Feb 14
Last Quarter
Feb 21
New

Weather History Calendar

Precipitation Actual month total 3.73 Normal Month Total: 3.76
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Rain
Actual:
84 | 73 0.13
Average:
83 | 73 0.15
Rain
Actual:
81 | 72 0.37
Average:
83 | 73 0.15
Partly Cloudy
Actual:
84 | 70 T
Average:
83 | 72 0.15
Partly Cloudy
Actual:
83 | 72 0.00
Average:
83 | 72 0.14
Rain
Actual:
83 | 73 0.04
Average:
83 | 72 0.14
Rain
Actual:
82 | 73 0.28
Average:
83 | 72 0.14
Rain
Actual:
83 | 73 0.18
Average:
83 | 72 0.14
Partly Cloudy
Actual:
85 | 73 T
Average:
83 | 72 0.14
Rain
Actual:
84 | 71 0.01
Average:
83 | 72 0.14
Scattered Clouds
Actual:
83 | 72 0.00
Average:
83 | 72 0.13
Rain
Actual:
82 | 73 0.02
Average:
83 | 72 0.13
Scattered Clouds
Actual:
84 | 71 0.00
Average:
83 | 72 0.13
Rain
Actual:
85 | 72 0.02
Average:
83 | 72 0.13
Rain
Actual:
83 | 73 0.03
Average:
83 | 72 0.12
Rain
Actual:
83 | 73 0.07
Average:
83 | 72 0.12
Rain
Actual:
83 | 73 0.11
Average:
83 | 72 0.12
Rain
Actual:
82 | 71 0.17
Average:
83 | 72 0.12
Rain
Actual:
81 | 71 0.43
Average:
83 | 72 0.12
Rain
Actual:
83 | 69 0.46
Average:
83 | 72 0.12
Rain
Actual:
82 | 72 0.01
Average:
83 | 72 0.12
Partly Cloudy
Actual:
83 | 70 0.00
Average:
83 | 72 0.11
Partly Cloudy
Actual:
82 | 72 T
Average:
83 | 72 0.11
Rain
Actual:
82 | 74 0.01
Average:
83 | 72 0.11
Rain
Actual:
82 | 72 T
Average:
83 | 72 0.10
Partly Cloudy
Actual:
82 | 73 0.00
Average:
83 | 72 0.11
Rain
Actual:
83 | 71 0.08
Average:
83 | 72 0.10
Rain
Actual:
82 | 71 0.12
Average:
83 | 72 0.10
Rain
Actual:
81 | 70 0.26
Average:
83 | 72 0.10
Rain
Actual:
82 | 71 0.20
Average:
83 | 72 0.09
Rain
Actual:
81 | 72 0.61
Average:
83 | 72 0.09
Rain
Actual:
82 | 72 0.12
Average:
83 | 72 0.09
 

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
Jan high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 84 79 73 72 70 68 93 78 63 30.15 30.08 30.04 10 10 3 22 11 30 0.13 Rain
2 81 77 72 72 69 68 87 78 69 30.11 30.05 29.99 10 9 2 25 4 30 0.37 Rain
3 84 77 70 72 70 68 97 83 69 30.09 30.03 29.96 10 10 10 16 3 20 T  
4 83 78 72 71 68 67 84 75 65 30.10 30.04 30.00 10 10 10 16 4 21 0.00  
5 83 78 73 71 70 68 87 76 65 30.08 30.02 29.97 10 10 5 18 3 23 0.04 Rain
6 82 78 73 72 71 70 93 81 69 30.07 30.02 29.98 10 9 2 20 4 24 0.28 Rain
7 83 78 73 73 71 68 100 84 67 30.10 30.04 29.99 10 10 7 20 7 23 0.18 Rain
8 85 79 73 71 68 65 87 71 55 30.09 30.05 30.00 10 10 10 17 6 22 T  
9 84 78 71 70 69 66 90 78 65 30.08 30.03 29.97 10 10 10 20 7 23 0.01 Rain
10 83 78 72 70 68 67 87 75 63 30.04 30.00 29.96 10 10 10 17 6 21 0.00  
11 82 78 73 69 68 67 84 73 62 30.05 30.00 29.96 10 10 10 17 6 22 0.02 Rain
12 84 78 71 67 65 64 84 70 55 30.09 30.03 29.99 10 10 10 20 7 23 0.00  
13 85 79 72 71 69 67 87 74 61 30.14 30.08 30.03 10 10 10 21 9 28 0.02 Rain
14 83 78 73 71 69 67 87 73 58 30.16 30.10 30.05 10 10 4 18 9 23 0.03 Rain
15 83 78 73 71 69 67 87 73 58 30.19 30.13 30.09 10 10 6 20 8 24 0.07 Rain
16 83 78 73 70 67 65 87 73 58 30.18 30.13 30.09 10 10 10 18 11 25 0.11 Rain
17 82 77 71 69 68 66 87 77 67 30.17 30.10 30.07 10 10 10 24 14 32 0.17 Rain
18 81 76 71 70 67 63 93 76 58 30.11 30.05 30.00 10 10 7 23 12 30 0.43 Rain
19 83 76 69 69 67 63 93 74 54 30.08 30.02 29.97 10 10 10 12 4 14 0.46 Rain
20 82 77 72 68 67 65 84 71 58 30.08 30.04 29.99 10 10 9 14 5 17 0.01 Rain
21 83 77 70 69 67 66 90 74 58 30.10 30.05 30.01 10 10 10 24 8 29 0.00  
22 82 77 72 67 66 64 84 71 58 30.08 30.04 30.01 10 10 10 20 10 24 T  
23 82 78 74 68 65 63 74 66 58 30.09 30.03 29.98 10 10 10 21 13 26 0.01 Rain
24 82 77 72 66 63 62 73 64 54 30.08 30.03 29.99 10 10 10 24 10 30 T Rain
25 82 78 73 66 65 63 79 69 58 30.10 30.05 30.01 10 10 10 17 12 23 0.00  
26 83 77 71 69 66 64 87 73 58 30.10 30.05 30.00 10 10 2 22 14 26 0.08 Rain
27 82 77 71 70 67 64 79 69 58 30.12 30.07 30.03 10 10 9 22 13 28 0.12 Rain
28 81 76 70 71 67 63 84 69 54 30.15 30.09 30.06 10 10 5 23 11 26 0.26 Rain
29 82 77 71 70 67 65 87 73 58 30.15 30.09 30.06 10 10 5 26 9 31 0.20 Rain
30 81 77 72 71 69 67 87 78 69 30.13 30.08 30.03 10 9 2 23 10 28 0.61 Rain
31 82 77 72 70 68 66 87 75 62 30.12 30.07 30.03 10 10 9 23 16 35 0.12 Rain