Weather History for Hayward, CA

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Month of January, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 70 °F 59 °F 50 °F
Mean Temperature 55 °F 50 °F 41 °F
Min Temperature 51 °F 41 °F 30 °F
Degree Days  
Heating Degree Days (base 65) 24 15 10 457
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 6 1 0 40
Dew Point  
Dew Point 57 °F 40 °F 16 °F
Precipitation  
Precipitation 1.04 in 0.05 in 0.00 in 1.56 in
Snowdepth - - - -
Wind  
Wind 28 mph 4 mph 0 mph
Gust Wind 84 mph 31 mph 18 mph
Sea Level Pressure  
Sea Level Pressure 30.48 in 30.21 in 29.70 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Jan. 04, 2012 Rise Set
Actual Time 7:23 AM PST 5:02 PM PST
Civil Twilight 6:54 AM PST 5:32 PM PST
Nautical Twilight 6:22 AM PST 6:04 PM PST
Astronomical Twilight 5:50 AM PST 6:36 PM PST
Moon 1:28 PM PST (1/4) 3:18 AM PST (1/4)
Length of Visible Light 10h 37m
Length of Day
9h 39m
Waxing Gibbous, 81% of the Moon is Illuminated
Jan 4
Waxing Gibbous
Jan 8
Full
Jan 16
Last Quarter
Jan 22
New
Jan 30
First Quarter

Weather History Calendar

Precipitation Actual month total 1.56 Average Month Total: 2.10
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Clear
Actual:
61 | 40 0.00
Average:
55 | 42 0.08
Clear
Actual:
58 | 44 0.00
Average:
55 | 42 0.08
Fog
Actual:
57 | 43 0.00
Average:
55 | 42 0.08
Clear
Actual:
62 | 40 0.00
Average:
55 | 42 0.07
Scattered Clouds
Actual:
62 | 42 0.00
Average:
55 | 42 0.07
Partly Cloudy
Actual:
57 | 43 0.00
Average:
55 | 42 0.07
Clear
Actual:
70 | 39 0.00
Average:
55 | 42 0.07
Clear
Actual:
69 | 41 0.00
Average:
55 | 42 0.07
Clear
Actual:
60 | 38 0.00
Average:
55 | 42 0.07
Clear
Actual:
58 | 38 0.00
Average:
55 | 42 0.07
Clear
Actual:
62 | 38 0.00
Average:
55 | 42 0.07
Clear
Actual:
61 | 38 0.00
Average:
55 | 42 0.07
Clear
Actual:
63 | 37 0.00
Average:
55 | 42 0.07
Clear
Actual:
62 | 38 0.00
Average:
55 | 42 0.07
Partly Cloudy
Actual:
51 | 39 0.00
Average:
55 | 42 0.07
Clear
Actual:
50 | 31 0.00
Average:
55 | 42 0.07
Clear
Actual:
51 | 30 0.00
Average:
55 | 42 0.07
Scattered Clouds
Actual:
56 | 34 0.00
Average:
55 | 42 0.07
Rain
Actual:
53 | 36 0.03
Average:
55 | 42 0.06
Rain
Actual:
59 | 51 1.04
Average:
55 | 42 0.06
Rain
Actual:
57 | 43 0.13
Average:
55 | 42 0.06
Rain
Actual:
54 | 43 0.10
Average:
55 | 42 0.06
Rain
Actual:
56 | 48 0.26
Average:
55 | 42 0.06
Partly Cloudy
Actual:
58 | 48 0.00
Average:
55 | 42 0.06
Partly Cloudy
Actual:
60 | 45 0.00
Average:
55 | 42 0.06
Fog
Actual:
60 | 50 0.00
Average:
55 | 42 0.06
Fog
Actual:
67 | 43 0.00
Average:
55 | 42 0.06
Clear
Actual:
64 | 37 0.00
Average:
55 | 42 0.06
Clear
Actual:
61 | 42 0.00
Average:
56 | 42 0.07
Partly Cloudy
Actual:
57 | 45 0.00
Average:
56 | 42 0.07
Partly Cloudy
Actual:
58 | 47 T
Average:
56 | 42 0.07
 

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
Jan high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 61 51 40 44 42 39 100 76 51 30.23 30.18 30.14 10 8 4 12 4 15 0.00  
2 58 51 44 48 44 39 93 83 72 30.35 30.29 30.20 9 6 4 9 1 13 0.00  
3 57 50 43 48 45 40 100 86 72 30.40 30.33 30.28 10 3 0 13 1 71 0.00 Fog
4 62 51 40 46 42 38 89 69 48 30.43 30.36 30.32 10 9 5 8 1 9 0.00  
5 62 52 42 50 44 38 93 75 56 30.36 30.28 30.19 10 9 7 12 4 15 0.00  
6 57 50 43 46 44 39 89 78 66 30.25 30.19 30.15 10 9 7 9 3 10 0.00  
7 70 55 39 44 30 16 92 53 14 30.27 30.20 30.15 10 10 10 24 5 30 0.00  
8 69 55 41 33 25 17 62 38 14 30.27 30.23 30.20 10 10 10 24 5 32 0.00  
9 60 49 38 40 34 27 71 57 43 30.30 30.23 30.19 10 8 5 9 3 14 0.00  
10 58 48 38 42 37 32 79 63 47 30.21 30.16 30.11 10 6 4 7 2 14 0.00  
11 62 50 38 41 32 28 70 53 36 30.18 30.12 30.06 10 9 6 7 3 8 0.00  
12 61 50 38 37 30 28 65 49 32 30.17 30.12 30.07 10 10 10 8 4 10 0.00  
13 63 50 37 38 33 28 70 52 34 30.26 30.21 30.18 10 8 7 7 2 8 0.00  
14 62 50 38 42 35 29 77 60 42 30.24 30.18 30.12 9 8 6 8 2 9 0.00  
15 51 45 39 43 36 25 89 72 55 30.21 30.13 30.07 10 9 5 22 7 31 0.00  
16 50 41 31 31 25 17 70 50 29 30.38 30.31 30.22 10 10 10 20 5 - 0.00  
17 51 41 30 35 31 26 85 65 44 30.47 30.41 30.38 10 10 10 10 5 14 0.00  
18 56 45 34 39 34 29 85 68 50 30.47 30.39 30.30 10 10 10 8 3 - 0.00  
19 53 45 36 46 38 33 92 71 50 30.29 30.18 30.08 10 10 7 14 7 20 0.03 Rain
20 59 55 51 57 53 47 100 86 72 30.08 29.91 29.73 10 6 2 22 13 28 1.04 Rain
21 57 50 43 54 46 39 93 78 63 30.20 29.96 29.75 10 10 6 28 10 37 0.13 Rain
22 54 49 43 48 42 37 89 78 66 30.20 30.05 29.84 10 10 4 22 10 29 0.10 Rain
23 56 52 48 53 51 48 100 95 89 30.20 29.88 29.70 10 7 2 25 10 38 0.26 Rain
24 58 53 48 51 49 48 100 86 72 30.46 30.36 30.21 10 10 10 9 2 17 0.00  
25 60 53 45 55 50 45 100 86 72 30.48 30.42 30.36 10 10 9 9 3 12 0.00  
26 60 55 50 57 55 52 100 100 100 30.39 30.32 30.26 10 5 0 12 3 16 0.00 Fog
27 67 55 43 52 39 20 100 58 16 30.32 30.27 30.24 10 5 0 9 2 13 0.00 Fog
28 64 51 37 41 32 23 76 52 27 30.37 30.32 30.27 10 10 10 12 3 14 0.00  
29 61 52 42 51 45 40 100 78 55 30.30 30.24 30.17 10 9 7 8 3 9 0.00  
30 57 51 45 52 49 46 100 86 72 30.15 30.10 30.05 10 10 9 17 4 84 0.00  
31 58 53 47 50 48 44 100 86 72 30.24 30.17 30.12 10 10 8 17 5 20 T