Weather History for San Juan, PR

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Month of October, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 92 °F 88 °F 85 °F
Mean Temperature 85 °F 82 °F 80 °F
Min Temperature 78 °F 76 °F 73 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 20 17 15 533
Growing Degree Days (base 50) 34 32 30 980
Dew Point  
Dew Point 77 °F 73 °F 69 °F
Precipitation  
Precipitation 1.87 in 0.20 in 0.00 in 5.51 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 23 mph 6 mph 0 mph
Gust Wind 28 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.04 in 29.91 in 29.78 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Oct. 04, 2011 Rise Set
Actual Time 6:15 AM AST 6:10 PM AST
Civil Twilight 5:53 AM AST 6:32 PM AST
Nautical Twilight 5:27 AM AST 6:57 PM AST
Astronomical Twilight 5:02 AM AST 7:22 PM AST
Moon 1:17 PM AST (10/4) No Moon Set
Length of Visible Light 12h 38m
Length of Day
11h 55m
First Quarter, 56% of the Moon is Illuminated
Oct 4
First Quarter
Oct 11
Full
Oct 19
Last Quarter
Oct 26
New
Nov 2
First Quarter

Weather History Calendar

Precipitation Actual month total 5.51 Normal Month Total: 5.59
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Scattered Clouds
Actual:
92 | 78 0.00
Average:
89 | 77 0.17
Thunderstorm
Actual:
89 | 76 0.00
Average:
89 | 77 0.17
Scattered Clouds
Actual:
88 | 78 0.01
Average:
89 | 77 0.16
Rain
Actual:
88 | 78 0.26
Average:
89 | 77 0.16
Thunderstorm
Actual:
88 | 76 0.41
Average:
89 | 77 0.16
Rain
Actual:
91 | 74 T
Average:
89 | 77 0.15
Partly Cloudy
Actual:
88 | 77 0.14
Average:
89 | 77 0.16
Thunderstorm
Actual:
87 | 77 0.47
Average:
89 | 77 0.16
Scattered Clouds
Actual:
88 | 77 0.00
Average:
89 | 77 0.15
Partly Cloudy
Actual:
87 | 75 0.00
Average:
89 | 77 0.17
Partly Cloudy
Actual:
88 | 75 0.00
Average:
89 | 77 0.16
Scattered Clouds
Actual:
88 | 77 0.00
Average:
89 | 77 0.17
Partly Cloudy
Actual:
91 | 76 T
Average:
89 | 77 0.16
Scattered Clouds
Actual:
90 | 76 0.00
Average:
89 | 77 0.17
Partly Cloudy
Actual:
88 | 74 0.01
Average:
89 | 77 0.17
Rain
Actual:
89 | 75 0.36
Average:
89 | 77 0.18
Rain
Actual:
87 | 76 0.04
Average:
89 | 77 0.18
Funnel Cloud
Actual:
87 | 74 1.87
Average:
88 | 77 0.18
Partly Cloudy
Actual:
88 | 75 0.00
Average:
88 | 77 0.19
Rain
Actual:
87 | 77 0.03
Average:
88 | 77 0.19
Rain
Actual:
85 | 75 0.14
Average:
88 | 77 0.20
Rain
Actual:
86 | 75 0.23
Average:
88 | 77 0.19
Scattered Clouds
Actual:
88 | 74 0.01
Average:
88 | 77 0.20
Partly Cloudy
Actual:
87 | 77 T
Average:
88 | 77 0.20
Rain
Actual:
88 | 78 0.03
Average:
88 | 77 0.21
Thunderstorm
Actual:
88 | 78 0.07
Average:
88 | 77 0.20
Partly Cloudy
Actual:
88 | 75 0.02
Average:
88 | 76 0.20
Rain
Actual:
88 | 77 0.18
Average:
88 | 76 0.21
Rain
Actual:
88 | 74 0.53
Average:
88 | 76 0.20
Rain
Actual:
87 | 77 0.11
Average:
88 | 76 0.21
Rain
Actual:
87 | 73 0.59
Average:
87 | 76 0.21
 

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

2011 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Oct high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 92 85 78 75 74 71 97 77 56 29.96 29.91 29.86 10 10 10 15 4 21 0.00  
2 89 83 76 77 75 74 94 79 63 30.02 29.97 29.92 10 10 10 20 8 23 0.00 Thunderstorm
3 88 83 78 76 74 72 91 77 63 30.04 29.98 29.93 10 10 10 20 10 24 0.01  
4 88 83 78 75 74 73 85 74 63 30.01 29.95 29.90 10 10 10 18 7 25 0.26 Rain
5 88 82 76 76 73 70 87 76 65 29.95 29.91 29.86 10 9 4 16 3 22 0.41 Rain , Thunderstorm
6 91 83 74 75 72 69 87 70 52 29.94 29.91 29.86 10 10 10 14 3 21 T Rain
7 88 83 77 75 73 71 85 73 61 29.96 29.92 29.87 10 10 10 18 4 23 0.14  
8 87 82 77 76 74 72 91 81 70 29.97 29.93 29.89 10 9 1 23 5 26 0.47 Rain , Thunderstorm
9 88 83 77 75 73 71 88 75 61 29.97 29.92 29.88 10 10 10 22 7 25 0.00  
10 87 81 75 74 73 71 88 75 61 29.95 29.91 29.88 10 10 10 21 7 24 0.00  
11 88 82 75 75 74 71 87 75 63 29.94 29.89 29.85 10 10 10 20 6 24 0.00  
12 88 83 77 76 74 73 88 76 63 29.96 29.89 29.85 10 10 10 20 4 23 0.00  
13 91 84 76 75 73 69 91 72 52 29.94 29.89 29.85 10 10 10 16 3 24 T  
14 90 83 76 75 73 71 85 71 56 29.96 29.92 29.88 10 10 9 22 8 25 0.00  
15 88 81 74 73 72 70 94 77 59 29.96 29.92 29.87 10 10 10 20 9 24 0.01  
16 89 82 75 74 72 70 88 76 63 29.97 29.92 29.86 10 10 10 22 6 28 0.36 Rain
17 87 82 76 75 73 72 94 79 63 29.95 29.89 29.84 10 10 10 21 7 25 0.04 Rain
18 87 81 74 75 73 72 85 75 65 29.97 29.91 29.87 10 9 1 15 4 26 1.87 Rain , Tornado
19 88 82 75 74 73 71 88 74 59 30.00 29.95 29.91 10 10 10 20 6 24 0.00  
20 87 82 77 75 73 71 88 76 63 29.99 29.93 29.87 10 10 10 16 7 21 0.03 Rain
21 85 80 75 74 72 71 87 76 65 29.91 29.85 29.79 10 10 10 20 5 22 0.14 Rain
22 86 81 75 76 71 69 91 74 57 29.90 29.83 29.78 10 10 7 15 3 21 0.23 Rain
23 88 81 74 75 72 69 93 75 57 29.97 29.91 29.85 10 10 8 16 4 21 0.01  
24 87 82 77 75 74 73 88 77 65 29.99 29.93 29.88 10 10 10 18 8 24 T  
25 88 83 78 76 75 74 85 77 68 29.94 29.88 29.83 10 10 10 20 8 23 0.03 Rain
26 88 83 78 76 74 71 91 75 59 29.92 29.86 29.82 10 10 10 18 8 23 0.07 Rain , Thunderstorm
27 88 82 75 75 74 72 94 79 63 29.94 29.88 29.83 10 10 10 21 8 25 0.02  
28 88 83 77 76 74 72 91 76 61 29.99 29.93 29.89 10 10 10 21 8 25 0.18 Rain
29 88 81 74 75 73 72 94 78 61 30.00 29.95 29.92 10 10 5 21 8 26 0.53 Rain
30 87 82 77 75 73 69 85 74 63 29.99 29.95 29.91 10 10 10 20 7 24 0.11 Rain
31 87 80 73 76 73 72 91 76 61 29.97 29.93 29.88 10 9 4 22 10 26 0.59 Rain