Weather History for San Nicolas Island, CA

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 82 °F 71 °F 60 °F
Mean Temperature 72 °F 62 °F 54 °F
Min Temperature 63 °F 53 °F 45 °F
Degree Days  
Heating Degree Days (base 65) 10 3 0 101
Cooling Degree Days (base 65) 7 1 0 19
Growing Degree Days (base 50) 22 12 4 378
Dew Point  
Dew Point 64 °F 49 °F 21 °F
Precipitation  
Precipitation 0.46 in 0.03 in 0.00 in 1.03 in
Snowdepth - - - -
Wind  
Wind 33 mph 11 mph 0 mph
Gust Wind 47 mph 27 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.24 in 30.04 in 29.75 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 14, 2012 Rise Set
Actual Time 6:53 AM PST 4:51 PM PST
Civil Twilight 6:26 AM PST 5:19 PM PST
Nautical Twilight 5:55 AM PST 5:50 PM PST
Astronomical Twilight 5:25 AM PST 6:20 PM PST
Moon 8:05 AM PST (12/14) 6:47 PM PST (12/14)
Length of Visible Light 10h 53m
Length of Day
9h 58m
Waxing Crescent, 3% of the Moon is Illuminated
Dec 14
Waxing Crescent
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

Weather History Calendar

Precipitation Actual month total 1.03 Average Month Total: 1.44
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
81 | 63 0.00
Average:
60 | 50 0.03
Rain
Actual:
82 | 61 0.07
Average:
60 | 50 0.03
Rain
Actual:
75 | 59 0.12
Average:
59 | 50 0.03
Partly Cloudy
Actual:
72 | 53 0.00
Average:
59 | 50 0.03
Rain
Actual:
72 | 57 0.00
Average:
59 | 50 0.03
Rain
Actual:
75 | 59 0.00
Average:
59 | 50 0.02
Scattered Clouds
Actual:
73 | 55 0.00
Average:
59 | 50 0.02
Scattered Clouds
Actual:
79 | 55 0.00
Average:
59 | 50 0.02
Partly Cloudy
Actual:
73 | 54 0.00
Average:
59 | 50 0.02
Fog
Actual:
73 | 52 0.00
Average:
59 | 50 0.02
Partly Cloudy
Actual:
73 | 53 0.00
Average:
59 | 50 0.02
Rain
Actual:
77 | 54 0.01
Average:
59 | 50 0.69
Rain
Actual:
66 | 55 0.00
Average:
59 | 50 0.02
Rain
Actual:
64 | 51 0.10
Average:
59 | 50 0.02
Rain
Actual:
66 | 51 0.00
Average:
59 | 50 0.02
Rain
Actual:
71 | 54 0.08
Average:
59 | 50 0.02
Rain
Actual:
75 | 52 0.00
Average:
59 | 49 0.02
Rain
Actual:
72 | 55 0.12
Average:
58 | 49 0.02
Clear
Actual:
64 | 48 0.00
Average:
58 | 49 0.02
Clear
Actual:
68 | 49 0.00
Average:
58 | 49 0.02
Scattered Clouds
Actual:
73 | 45 0.00
Average:
58 | 49 0.02
Fog
Actual:
77 | 48 0.00
Average:
58 | 49 0.03
Partly Cloudy
Actual:
75 | 56 0.04
Average:
58 | 49 0.03
Rain
Actual:
72 | 56 0.02
Average:
58 | 49 0.03
Partly Cloudy
Actual:
70 | 55 0.00
Average:
58 | 49 0.03
Partly Cloudy
Actual:
68 | 53 0.01
Average:
58 | 49 0.03
Scattered Clouds
Actual:
60 | 52 0.00
Average:
58 | 49 0.03
Scattered Clouds
Actual:
66 | 48 0.00
Average:
58 | 49 0.03
Rain
Actual:
71 | 54 0.46
Average:
58 | 49 0.03
Scattered Clouds
Actual:
63 | 48 0.00
Average:
58 | 49 0.03
Scattered Clouds
Actual:
63 | 46 0.00
Average:
58 | 49 0.03
 

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 81 72 63 63 60 57 91 63 47 30.19 30.13 30.08 10 6 0 14 10 - 0.00 Fog , Rain
2 82 72 61 63 60 55 100 72 47 30.16 30.11 30.07 10 5 0 16 8 22 0.07 Rain
3 75 67 59 64 55 50 100 72 46 30.18 30.13 30.09 10 5 0 16 12 - 0.12 Fog , Rain
4 72 62 53 57 54 51 100 71 48 30.24 30.18 30.15 10 9 7 18 10 - 0.00  
5 72 64 57 61 58 53 100 80 61 30.14 30.07 30.00 10 4 0 29 22 38 0.00 Fog , Rain
6 75 67 59 61 57 54 100 85 63 29.99 29.94 29.88 7 3 0 29 21 37 0.00 Rain
7 73 64 55 57 53 46 98 65 38 29.97 29.93 29.90 10 7 0 12 8 - 0.00  
8 79 67 55 56 51 45 82 59 42 29.97 29.93 29.90 10 6 0 12 7 - 0.00  
9 73 64 54 57 52 48 94 69 49 30.12 30.02 29.94 10 7 2 9 3 - 0.00  
10 73 62 52 58 50 32 98 73 21 30.16 30.09 30.04 10 5 0 10 2 - 0.00 Fog
11 73 63 53 57 50 38 84 56 29 30.04 29.98 29.94 10 9 7 14 8 16 0.00  
12 77 66 54 59 52 48 93 60 41 29.96 29.88 29.83 10 8 2 14 5 - 0.01 Rain
13 66 60 55 52 44 39 67 53 42 29.84 29.80 29.75 10 9 7 23 16 29 0.00 Rain
14 64 58 51 49 44 37 92 61 44 29.96 29.90 29.77 10 7 3 20 13 26 0.10 Rain
15 66 58 51 48 46 42 88 65 47 30.09 30.02 29.94 10 9 7 21 12 28 0.00 Rain
16 71 62 54 54 51 47 100 75 45 30.14 30.08 30.05 10 3 0 18 10 - 0.08 Rain
17 75 64 52 56 53 51 100 69 43 30.17 30.11 29.99 10 5 0 13 7 - 0.00 Fog , Rain
18 72 64 55 55 48 31 88 59 39 30.07 29.94 29.89 10 7 1 33 15 47 0.12 Rain
19 64 56 48 39 34 30 66 47 28 30.23 30.18 30.07 10 9 7 17 12 29 0.00  
20 68 58 49 45 38 21 76 51 20 30.20 30.14 30.07 10 9 7 12 7 - 0.00  
21 73 59 45 48 43 28 100 58 28 30.12 30.07 30.02 10 9 7 15 9 - 0.00  
22 77 62 48 56 52 43 100 57 37 30.16 30.12 30.06 10 6 0 12 6 - 0.00 Fog
23 75 66 56 56 52 48 93 62 48 30.21 30.15 30.10 10 6 0 12 6 - 0.04  
24 72 64 56 59 54 48 100 79 49 30.11 30.07 30.00 10 6 0 26 15 30 0.02 Fog , Rain
25 70 62 55 54 51 44 82 63 49 30.10 30.03 29.97 10 10 8 13 7 - 0.00  
26 68 60 53 54 48 42 83 64 51 30.04 29.98 29.93 10 7 0 29 18 36 0.01  
27 60 56 52 45 43 39 77 61 51 30.09 30.03 29.99 10 9 7 31 26 41 0.00  
28 66 57 48 47 42 37 74 55 43 30.15 30.09 30.06 10 9 7 15 8 - 0.00  
29 71 62 54 48 44 39 79 55 36 30.06 30.01 29.96 10 7 1 16 7 16 0.46 Rain
30 63 56 48 45 42 39 80 59 46 30.08 29.99 29.93 10 9 7 23 13 30 0.00  
31 63 54 46 43 40 37 71 53 41 30.22 30.17 30.09 10 9 7 15 10 - 0.00