Weather History for Half Moon Bay, CA

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Month of October, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 82 °F 64 °F 57 °F
Mean Temperature 64 °F 57 °F 52 °F
Min Temperature 57 °F 49 °F 44 °F
Degree Days  
Heating Degree Days (base 65) 14 8 1 243
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 14 7 2 205
Dew Point  
Dew Point 64 °F 52 °F 28 °F
Precipitation  
Precipitation 0.71 in 0.05 in 0.00 in 1.54 in
Snowdepth - - - -
Wind  
Wind 26 mph 5 mph 0 mph
Gust Wind 38 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.31 in 30.04 in 29.75 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Oct. 11, 2012 Rise Set
Actual Time 7:14 AM PDT 6:37 PM PDT
Civil Twilight 6:48 AM PDT 7:03 PM PDT
Nautical Twilight 6:18 AM PDT 7:34 PM PDT
Astronomical Twilight 5:48 AM PDT 8:04 PM PDT
Moon 3:03 AM PDT (10/11) 4:13 PM PDT (10/11)
Length of Visible Light 12h 15m
Length of Day
11h 22m
Waning Crescent, 17% of the Moon is Illuminated
Oct 11
Waning Crescent
Oct 15
New
Oct 21
First Quarter
Oct 29
Full
Nov 6
Last Quarter

Weather History Calendar

Precipitation Actual month total 1.54 Average Month Total: 1.65
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Scattered Clouds
Actual:
82 | 46 0.00
Average:
67 | 50 0.01
Scattered Clouds
Actual:
77 | 48 0.00
Average:
66 | 50 0.02
Clear
Actual:
- | - 0.00
Average:
66 | 48 0.01
Partly Cloudy
Actual:
62 | 57 0.00
Average:
66 | 49 0.00
Partly Cloudy
Actual:
66 | 55 0.00
Average:
67 | 49 0.00
Scattered Clouds
Actual:
68 | 48 0.00
Average:
66 | 50 0.00
Scattered Clouds
Actual:
60 | 46 0.00
Average:
66 | 50 0.05
Scattered Clouds
Actual:
64 | 44 0.00
Average:
67 | 49 0.03
Rain
Actual:
64 | 48 0.00
Average:
66 | 49 0.08
Rain
Actual:
60 | 55 0.00
Average:
65 | 49 0.07
Overcast
Actual:
57 | 53 0.00
Average:
65 | 49 0.08
Rain
Actual:
62 | 46 0.01
Average:
66 | 48 0.04
Scattered Clouds
Actual:
66 | 44 0.00
Average:
65 | 48 0.03
Rain
Actual:
66 | 55 0.00
Average:
64 | 48 0.02
Fog
Actual:
66 | 53 0.00
Average:
64 | 48 0.07
Fog
Actual:
66 | 50 0.00
Average:
66 | 47 0.09
Partly Cloudy
Actual:
69 | 48 0.00
Average:
66 | 47 0.00
Scattered Clouds
Actual:
77 | 48 0.00
Average:
65 | 47 0.00
Rain
Actual:
62 | 55 0.00
Average:
64 | 48 0.02
Rain
Actual:
62 | 46 0.00
Average:
65 | 48 0.02
Rain
Actual:
59 | 44 0.02
Average:
64 | 48 0.06
Rain
Actual:
59 | 53 0.71
Average:
63 | 48 0.05
Rain
Actual:
59 | 46 0.03
Average:
65 | 47 0.05
Rain
Actual:
59 | 48 0.64
Average:
66 | 48 0.03
Rain
Actual:
64 | 50 0.01
Average:
65 | 47 0.12
Scattered Clouds
Actual:
64 | 46 0.00
Average:
65 | 48 0.21
Fog
Actual:
68 | 50 0.00
Average:
65 | 48 0.04
Fog
Actual:
62 | 48 0.00
Average:
64 | 48 0.16
Fog
Actual:
59 | 53 0.00
Average:
64 | 46 0.07
Fog
Actual:
59 | 46 0.01
Average:
66 | 47 0.17
Rain
Actual:
59 | 55 0.11
Average:
66 | 46 0.05
 

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
Oct high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 82 64 46 55 48 37 100 65 20 30.01 29.95 29.90 10 8 3 17 4 21 0.00  
2 77 62 48 55 48 41 87 63 32 29.90 29.87 29.81 10 9 5 13 2 - 0.00  
3 - - - - - - - - - - - - - - - - - - 0.00  
4 62 60 57 55 54 54 88 84 72 30.17 30.15 30.13 7 5 5 8 5 - 0.00  
5 66 60 55 57 55 52 94 82 68 30.18 30.14 30.09 10 8 3 9 3 - 0.00  
6 68 58 48 54 50 46 100 78 49 30.09 30.05 30.01 10 10 4 15 4 17 0.00  
7 60 53 46 55 51 45 100 89 77 30.04 30.01 29.99 10 10 7 12 3 16 0.00  
8 64 54 44 55 51 45 100 86 68 30.07 30.04 30.02 10 10 2 8 2 - 0.00  
9 64 56 48 55 53 46 100 86 68 30.05 30.01 29.97 10 10 7 10 3 - 0.00 Rain
10 60 58 55 55 53 50 94 87 77 29.99 29.97 29.94 10 9 6 13 5 - 0.00 Rain
11 57 55 53 54 52 50 100 87 77 29.99 29.95 29.91 10 8 2 10 5 - 0.00  
12 62 54 46 54 50 43 100 83 59 30.24 30.12 29.98 10 9 2 9 2 - 0.01 Rain
13 66 55 44 57 50 43 100 79 56 30.31 30.25 30.21 10 9 2 18 4 22 0.00  
14 66 60 55 57 56 55 100 93 73 30.24 30.17 30.11 10 5 0 18 8 22 0.00 Fog , Rain
15 66 60 53 61 57 54 100 91 68 30.12 30.06 30.00 10 6 0 22 8 28 0.00 Fog
16 66 58 50 63 58 48 100 92 82 30.02 29.98 29.92 10 6 0 22 14 28 0.00 Fog
17 69 58 48 57 52 45 100 82 49 29.92 29.88 29.83 10 6 2 16 5 - 0.00  
18 77 62 48 64 50 28 100 60 17 30.06 29.95 29.85 10 8 3 23 5 31 0.00  
19 62 58 55 63 59 54 100 98 88 30.08 30.02 29.96 10 3 0 17 9 23 0.00 Fog , Rain
20 62 54 46 57 53 45 100 89 72 29.97 29.92 29.87 10 5 0 20 7 25 0.00 Fog , Rain
21 59 52 44 50 46 41 93 78 63 29.98 29.93 29.86 10 9 6 15 5 21 0.02 Rain
22 59 56 53 54 52 48 100 85 72 29.96 29.87 29.75 10 8 1 26 10 38 0.71 Rain
23 59 52 46 50 48 45 100 84 63 30.07 30.03 29.95 10 10 5 15 5 24 0.03 Rain
24 59 54 48 55 52 46 94 87 77 30.21 30.13 30.04 10 9 2 12 5 - 0.64 Rain
25 64 58 50 54 51 46 94 80 64 30.25 30.22 30.18 10 10 2 16 6 23 0.01 Rain
26 64 55 46 55 50 39 100 78 52 30.24 30.18 30.12 10 9 1 18 7 20 0.00  
27 68 59 50 57 55 50 100 88 64 30.11 30.04 29.98 10 8 0 21 7 25 0.00 Fog
28 62 55 48 55 54 48 100 97 77 30.06 30.01 29.98 10 4 0 17 4 20 0.00 Fog
29 59 56 53 57 55 54 100 99 94 30.13 30.09 30.06 3 1 0 12 3 - 0.00 Fog
30 59 52 46 57 54 46 100 97 88 30.11 30.05 30.00 10 5 0 16 4 - 0.01 Fog
31 59 57 55 57 56 55 100 96 88 30.05 30.01 29.99 10 6 1 15 7 20 0.11 Rain