Weather History for Half Moon Bay, CA

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Month of April, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 62 °F 57 °F 53 °F
Mean Temperature 56 °F 51 °F 46 °F
Min Temperature 53 °F 45 °F 37 °F
Degree Days  
Heating Degree Days (base 65) 19 14 9 416
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 6 1 0 42
Dew Point  
Dew Point 55 °F 47 °F 27 °F
Precipitation  
Precipitation 0.42 in 0.03 in 0.00 in 0.77 in
Snowdepth - - - -
Wind  
Wind 37 mph 9 mph 0 mph
Gust Wind 50 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.29 in 30.07 in 29.83 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Apr. 09, 2013 Rise Set
Actual Time 6:43 AM PDT 7:40 PM PDT
Civil Twilight 6:16 AM PDT 8:07 PM PDT
Nautical Twilight 5:44 AM PDT 8:38 PM PDT
Astronomical Twilight 5:12 AM PDT 9:11 PM PDT
Moon 6:08 AM PDT (4/9) 7:21 PM PDT (4/9)
Length of Visible Light 13h 50m
Length of Day
12h 57m
Waning Crescent, 0% of the Moon is Illuminated
Apr 9
Waning Crescent
Apr 10
New
Apr 18
First Quarter
Apr 25
Full
May 2
Last Quarter

Weather History Calendar

Precipitation Actual month total 0.77 Average Month Total: 1.71
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
57 | 48 0.27
Average:
60 | 43 0.13
Rain
Actual:
53 | 46 0.01
Average:
60 | 43 0.03
Fog
Actual:
57 | 46 0.00
Average:
59 | 44 0.07
Rain
Actual:
57 | 50 0.42
Average:
62 | 45 0.07
Rain
Actual:
59 | 53 0.02
Average:
60 | 44 0.13
Rain
Actual:
55 | 51 0.03
Average:
60 | 44 0.11
Rain
Actual:
57 | 51 0.02
Average:
60 | 42 0.04
Partly Cloudy
Actual:
57 | 48 0.00
Average:
60 | 43 0.04
Scattered Clouds
Actual:
60 | 46 0.00
Average:
61 | 44 0.06
Scattered Clouds
Actual:
60 | 46 0.00
Average:
60 | 43 0.06
Partly Cloudy
Actual:
57 | 48 0.00
Average:
60 | 44 0.07
Partly Cloudy
Actual:
55 | 44 0.00
Average:
60 | 43 0.04
Scattered Clouds
Actual:
55 | 44 0.00
Average:
61 | 45 0.06
Scattered Clouds
Actual:
53 | 46 0.00
Average:
60 | 44 0.04
Rain
Actual:
53 | 46 0.00
Average:
59 | 44 0.08
Scattered Clouds
Actual:
53 | 39 0.00
Average:
60 | 44 0.02
Scattered Clouds
Actual:
57 | 42 0.00
Average:
59 | 44 0.12
Rain
Actual:
59 | 37 0.00
Average:
59 | 45 0.05
Rain
Actual:
59 | 39 0.00
Average:
60 | 44 0.07
Scattered Clouds
Actual:
57 | 41 0.00
Average:
61 | 44 0.05
Partly Cloudy
Actual:
62 | 39 0.00
Average:
61 | 43 0.05
Fog
Actual:
62 | 41 0.00
Average:
61 | 44 0.05
Fog
Actual:
55 | 46 0.00
Average:
60 | 44 0.09
Overcast
Actual:
55 | 46 0.00
Average:
60 | 43 0.09
Partly Cloudy
Actual:
59 | 44 0.00
Average:
60 | 43 0.03
Mostly Cloudy
Actual:
55 | 46 0.00
Average:
61 | 43 0.00
Mostly Cloudy
Actual:
53 | 48 0.00
Average:
60 | 44 0.01
Partly Cloudy
Actual:
57 | 48 0.00
Average:
61 | 45 0.01
Partly Cloudy
Actual:
62 | 44 0.00
Average:
61 | 43 0.02
Scattered Clouds
Actual:
59 | 44 0.00
Average:
61 | 45 0.02
 

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

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Apr high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 57 52 48 55 53 46 100 96 88 30.19 30.14 30.07 10 5 0 12 8 16 0.27 Fog , Rain
2 53 50 46 52 49 46 100 94 88 30.22 30.18 30.14 10 5 0 16 6 21 0.01 Fog , Rain
3 57 52 46 54 49 46 100 96 82 30.17 30.11 30.04 10 6 0 12 6 - 0.00 Fog
4 57 54 50 55 53 48 100 97 88 30.15 30.09 30.02 9 4 0 20 10 25 0.42 Fog , Rain
5 59 56 53 55 54 52 100 97 77 30.23 30.18 30.15 10 5 0 9 3 - 0.02 Fog , Rain
6 55 53 51 55 53 48 100 96 82 30.23 30.20 30.18 9 4 0 9 4 - 0.03 Fog , Rain
7 57 54 51 55 51 46 100 90 77 30.22 30.10 29.92 9 5 0 25 4 34 0.02 Fog , Rain
8 57 52 48 46 43 37 87 72 54 30.05 29.97 29.87 7 5 3 37 25 50 0.00  
9 60 53 46 46 46 45 93 76 55 30.12 30.09 30.05 7 5 2 25 16 34 0.00  
10 60 53 46 52 49 45 100 82 68 30.20 30.15 30.11 6 4 3 28 10 34 0.00  
11 57 52 48 50 47 45 100 85 67 30.14 30.03 29.92 5 4 2 22 13 30 0.00  
12 55 50 44 48 46 43 94 88 77 29.97 29.94 29.91 5 4 2 16 7 24 0.00  
13 55 50 44 48 44 41 93 81 67 29.96 29.93 29.90 5 4 3 32 12 41 0.00  
14 53 50 46 46 42 39 93 77 62 29.99 29.96 29.93 7 5 2 23 15 31 0.00  
15 53 50 46 48 41 39 100 76 62 30.00 29.95 29.91 8 6 1 30 16 44 0.00 Rain
16 53 46 39 45 40 36 87 71 58 30.18 30.10 29.99 9 6 3 23 15 30 0.00  
17 57 50 42 45 39 27 87 59 31 30.29 30.24 30.17 10 7 3 20 13 30 0.00  
18 59 48 37 48 43 36 100 83 63 30.29 30.26 30.24 7 4 2 18 6 24 0.00 Rain
19 59 49 39 50 45 37 100 84 67 30.28 30.22 30.11 7 5 2 26 4 36 0.00 Rain
20 57 49 41 48 46 39 93 84 72 30.15 30.10 30.05 6 4 3 23 9 29 0.00  
21 62 50 39 52 45 37 100 84 59 30.07 30.02 29.98 6 4 2 24 4 - 0.00  
22 62 52 41 52 47 39 100 85 59 30.00 29.95 29.91 9 3 0 10 3 - 0.00 Fog
23 55 50 46 50 48 46 100 92 82 30.00 29.95 29.89 9 5 0 14 6 18 0.00 Fog
24 55 50 46 50 47 45 100 91 82 29.99 29.93 29.87 10 6 1 13 5 16 0.00  
25 59 52 44 52 49 45 100 82 72 30.17 30.09 29.99 10 8 5 9 5 - 0.00  
26 55 50 46 48 47 45 94 83 77 30.27 30.22 30.16 10 8 6 17 6 22 0.00  
27 53 50 48 48 48 46 100 89 82 30.26 30.19 30.13 10 6 2 17 11 17 0.00  
28 57 52 48 50 48 45 94 85 77 30.13 30.03 29.93 6 4 3 14 5 - 0.00  
29 62 53 44 52 47 41 100 79 63 29.93 29.89 29.83 6 4 2 25 6 34 0.00  
30 59 52 44 46 45 41 93 77 59 29.90 29.87 29.84 4 3 2 22 9 29 0.00