Weather History for Hayward, CA

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Month of December, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 70 °F 59 °F 48 °F
Mean Temperature 56 °F 46 °F 29 °F
Min Temperature 45 °F 34 °F -1 °F
Degree Days  
Heating Degree Days (base 65) 36 19 9 541
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 5 1 0 21
Dew Point  
Dew Point 54 °F 33 °F 10 °F
Precipitation  
Precipitation 0.28 in 0.01 in 0.00 in 0.32 in
Snowdepth - - - -
Wind  
Wind 22 mph 4 mph 0 mph
Gust Wind 29 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.45 in 30.19 in 29.74 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 14, 2013 Rise Set
Actual Time 7:15 AM PST 4:50 PM PST
Civil Twilight 6:46 AM PST 5:20 PM PST
Nautical Twilight 6:13 AM PST 5:52 PM PST
Astronomical Twilight 5:41 AM PST 6:24 PM PST
Moon 3:14 PM PST (12/14) 4:43 AM PST (12/14)
Length of Visible Light 10h 33m
Length of Day
9h 34m
Waxing Gibbous, 94% of the Moon is Illuminated
Dec 14
Waxing Gibbous
Dec 17
Full
Dec 25
Last Quarter
Jan 1
New
Jan 7
First Quarter

Weather History Calendar

Precipitation Actual month total 0.32 Average Month Total: 2.45
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Clear
Actual:
67 | 44 0.00
Average:
57 | 44 0.06
Fog
Actual:
60 | 45 0.00
Average:
57 | 44 0.06
Partly Cloudy
Actual:
56 | 39 0.00
Average:
57 | 44 0.07
Clear
Actual:
52 | 35 0.00
Average:
57 | 44 0.07
Clear
Actual:
51 | 31 0.00
Average:
57 | 44 0.07
Rain
Actual:
51 | 35 0.28
Average:
57 | 44 0.07
Rain
Actual:
50 | 35 0.04
Average:
57 | 44 0.07
Clear
Actual:
48 | 32 0.00
Average:
57 | 44 0.08
Clear
Actual:
52 | 28 0.00
Average:
57 | 43 0.08
Clear
Actual:
56 | 31 0.00
Average:
57 | 43 0.08
Clear
Actual:
58 | 35 0.00
Average:
57 | 43 0.08
Clear
Actual:
56 | 34 0.00
Average:
57 | 43 0.08
Partly Cloudy
Actual:
55 | 38 0.00
Average:
56 | 43 0.08
Clear
Actual:
62 | 37 0.00
Average:
56 | 42 0.08
Clear
Actual:
59 | 35 0.00
Average:
56 | 42 0.08
Clear
Actual:
65 | 34 0.00
Average:
56 | 42 0.08
Clear
Actual:
- | - 0.00
Average:
56 | 42 0.08
Partly Cloudy
Actual:
- | - 0.00
Average:
55 | 41 0.08
Clear
Actual:
55 | 44 0.00
Average:
55 | 41 0.08
Clear
Actual:
59 | -1 0.00
Average:
55 | 41 0.08
Scattered Clouds
Actual:
62 | 12 0.00
Average:
55 | 41 0.08
Scattered Clouds
Actual:
63 | 38 0.00
Average:
55 | 41 0.09
Clear
Actual:
63 | -1 0.00
Average:
55 | 41 0.09
Clear
Actual:
67 | 42 0.00
Average:
55 | 41 0.09
Clear
Actual:
65 | 40 0.00
Average:
55 | 41 0.09
Clear
Actual:
63 | 40 0.00
Average:
55 | 41 0.09
Clear
Actual:
57 | 40 0.00
Average:
55 | 41 0.09
Clear
Actual:
62 | 37 0.00
Average:
55 | 41 0.08
Clear
Actual:
70 | 36 0.00
Average:
55 | 41 0.08
Scattered Clouds
Actual:
63 | 37 0.00
Average:
55 | 41 0.08
Clear
Actual:
59 | 40 0.00
Average:
55 | 41 0.08
 

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
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 67 56 44 49 44 40 89 71 52 30.38 30.30 30.25 10 9 6 8 2 10 0.00  
2 60 53 45 54 48 40 93 82 71 30.25 30.13 30.00 10 8 0 16 5 21 0.00 Fog
3 56 48 39 54 39 28 93 66 38 29.98 29.94 29.89 10 10 6 21 8 29 0.00  
4 52 44 35 27 21 14 64 47 29 30.12 30.06 29.98 10 10 10 9 4 13 0.00  
5 51 41 31 24 18 13 56 40 23 30.21 30.17 30.12 10 10 10 8 4 9 0.00  
6 51 43 35 46 33 21 86 64 41 30.23 30.11 29.94 10 9 2 22 7 26 0.28 Rain
7 50 43 35 46 31 24 93 66 39 30.28 30.13 29.96 10 10 10 20 8 24 0.04 Rain
8 48 40 32 28 22 17 75 53 31 30.36 30.31 30.27 10 10 10 13 6 16 0.00  
9 52 40 28 25 20 14 63 44 24 30.45 30.40 30.35 10 10 10 12 4 14 0.00  
10 56 44 31 33 27 24 72 52 32 30.43 30.33 30.25 10 10 10 9 5 10 0.00  
11 58 47 35 32 27 24 64 46 28 30.28 30.24 30.21 10 10 8 12 4 15 0.00  
12 56 45 34 35 32 28 75 57 38 30.30 30.25 30.20 9 7 5 9 2 10 0.00  
13 55 47 38 44 39 32 100 81 61 30.38 30.30 30.26 10 7 2 8 3 9 0.00  
14 62 48 37 39 34 30 100 71 41 30.41 30.37 30.33 10 9 7 10 3 13 0.00  
15 59 47 35 41 35 30 85 65 44 30.39 30.33 30.26 10 6 4 8 1 9 0.00  
16 65 48 34 38 35 32 100 66 31 30.26 30.19 30.12 10 7 5 7 2 - 0.00  
17 - - - - - - - - - 30.18 30.11 30.04 - - - - - - 0.00  
18 - - - - - - - - - 30.02 29.91 29.78 10 10 10 12 12 - 0.00  
19 55 50 44 42 33 22 61 48 34 29.94 29.82 29.74 10 10 9 9 3 - 0.00  
20 59 29 -1 27 21 10 49 32 15 30.05 30.00 29.94 10 10 10 9 3 10 0.00  
21 62 36 12 48 37 13 100 75 49 30.09 30.05 30.01 10 10 7 10 3 12 0.00  
22 63 51 38 45 39 36 93 65 36 30.32 30.21 30.09 10 10 8 10 3 13 0.00  
23 63 31 -1 42 38 35 79 61 43 30.42 30.37 30.32 10 8 5 10 3 12 0.00  
24 67 55 42 41 38 35 76 57 37 30.37 30.30 30.24 10 8 5 9 2 12 0.00  
25 65 53 40 42 37 33 82 63 43 30.32 30.27 30.23 10 10 9 10 4 14 0.00  
26 63 52 40 41 37 34 82 63 43 30.29 30.24 30.19 10 8 5 8 2 10 0.00  
27 57 49 40 43 39 34 80 67 54 30.26 30.21 30.16 10 7 5 8 1 9 0.00  
28 62 50 37 41 34 29 85 57 29 30.18 30.12 30.06 10 9 6 8 3 9 0.00  
29 70 53 36 38 29 22 70 44 18 30.21 30.15 30.12 10 10 10 3 2 5 0.00  
30 63 50 37 41 34 28 76 58 40 30.29 30.24 30.21 10 7 3 6 1 - 0.00  
31 59 50 40 46 39 31 80 67 53 30.31 30.23 30.16 10 6 2 9 2 12 0.00