Weather History for San Jose, CA

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 69 °F 58 °F 49 °F
Mean Temperature 64 °F 51 °F 43 °F
Min Temperature 58 °F 43 °F 32 °F
Degree Days  
Heating Degree Days (base 65) 22 14 1 437
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 12 3 0 80
Dew Point  
Dew Point 61 °F 43 °F 16 °F
Precipitation  
Precipitation 1.17 in 0.14 in 0.00 in 4.22 in
Snowdepth - - - -
Wind  
Wind 25 mph 6 mph 0 mph
Gust Wind 35 mph 23 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.32 in 30.06 in 29.83 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 20, 2012 Rise Set
Actual Time 7:18 AM PST 4:53 PM PST
Civil Twilight 6:48 AM PST 5:22 PM PST
Nautical Twilight 6:16 AM PST 5:55 PM PST
Astronomical Twilight 5:44 AM PST 6:27 PM PST
Moon 12:07 PM PST (12/20) 12:17 AM PST (12/20)
Length of Visible Light 10h 33m
Length of Day
9h 35m
First Quarter, 56% of the Moon is Illuminated
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter

Weather History Calendar

Precipitation Actual month total 4.22 Normal Month Total: 2.12
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
66 | 58 0.01
Average:
63 | 43 0.04
Rain
Actual:
64 | 47 0.92
Average:
63 | 43 0.04
Clear
Actual:
64 | 43 0.00
Average:
63 | 43 0.05
Scattered Clouds
Actual:
64 | 51 0.00
Average:
63 | 43 0.05
Rain
Actual:
69 | 58 0.38
Average:
63 | 43 0.05
Mostly Cloudy
Actual:
59 | 51 0.01
Average:
62 | 43 0.06
Partly Cloudy
Actual:
64 | 46 0.00
Average:
62 | 43 0.06
Scattered Clouds
Actual:
62 | 42 0.00
Average:
62 | 43 0.06
Clear
Actual:
67 | 45 0.00
Average:
62 | 43 0.06
Clear
Actual:
68 | 45 0.00
Average:
62 | 42 0.05
Rain
Actual:
64 | 42 T
Average:
62 | 42 0.07
Rain
Actual:
55 | 43 0.10
Average:
62 | 42 0.06
Clear
Actual:
53 | 38 0.00
Average:
61 | 42 0.06
Rain
Actual:
53 | 36 0.01
Average:
61 | 42 0.07
Rain
Actual:
49 | 36 0.13
Average:
61 | 42 0.07
Mostly Cloudy
Actual:
58 | 46 0.00
Average:
61 | 42 0.07
Rain
Actual:
58 | 47 0.15
Average:
61 | 42 0.07
Scattered Clouds
Actual:
53 | 40 0.00
Average:
61 | 42 0.07
Clear
Actual:
54 | 32 0.00
Average:
61 | 42 0.08
Clear
Actual:
59 | 36 0.00
Average:
61 | 42 0.08
Rain
Actual:
57 | 47 0.02
Average:
61 | 42 0.09
Thunderstorm
Actual:
56 | 50 0.49
Average:
60 | 42 0.08
Rain
Actual:
62 | 48 1.17
Average:
60 | 42 0.08
Scattered Clouds
Actual:
56 | 43 0.00
Average:
60 | 42 0.09
Rain
Actual:
53 | 39 0.28
Average:
60 | 42 0.08
Rain
Actual:
54 | 44 0.36
Average:
60 | 42 0.08
Scattered Clouds
Actual:
54 | 40 0.00
Average:
60 | 42 0.08
Rain
Actual:
51 | 37 0.03
Average:
60 | 42 0.09
Rain
Actual:
52 | 39 0.16
Average:
60 | 42 0.08
Scattered Clouds
Actual:
54 | 36 0.00
Average:
60 | 42 0.07
Scattered Clouds
Actual:
53 | 33 0.00
Average:
60 | 42 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

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 66 62 58 59 56 53 90 82 73 30.06 30.00 29.94 10 10 6 22 14 30 0.01 Rain
2 64 56 47 59 54 46 93 79 64 30.13 29.95 29.83 10 8 0 25 9 35 0.92 Fog , Rain
3 64 54 43 49 46 42 100 76 52 30.21 30.16 30.12 10 10 8 10 2 14 0.00  
4 64 58 51 53 49 43 89 69 48 30.23 30.19 30.16 10 10 10 15 7 18 0.00  
5 69 64 58 61 57 50 100 82 64 30.17 30.12 30.08 10 9 2 15 8 18 0.38 Rain
6 59 55 51 56 50 46 93 80 67 30.14 30.11 30.07 10 10 6 17 6 21 0.01  
7 64 55 46 48 46 41 93 71 48 30.16 30.11 30.07 10 10 8 9 2 13 0.00  
8 62 52 42 47 43 39 93 72 51 30.11 30.07 30.03 10 9 4 13 3 23 0.00  
9 67 56 45 40 38 36 86 60 34 30.17 30.13 30.10 10 10 10 17 6 21 0.00  
10 68 57 45 44 42 39 77 58 39 30.23 30.16 30.11 10 10 10 14 4 17 0.00  
11 64 53 42 50 44 39 83 66 48 30.10 29.97 29.89 10 10 9 21 5 24 T Rain
12 55 49 43 49 44 39 89 74 59 29.92 29.88 29.84 10 9 4 22 5 25 0.10 Rain
13 53 46 38 42 38 35 93 76 59 29.93 29.89 29.85 10 10 10 15 4 18 0.00  
14 53 45 36 43 38 34 92 73 54 30.03 29.92 29.84 10 10 10 12 5 16 0.01 Rain
15 49 43 36 43 40 35 100 83 66 30.10 30.05 30.01 10 10 6 17 8 21 0.13 Rain
16 58 52 46 50 46 41 86 74 62 30.11 30.06 30.04 10 10 10 15 7 22 0.00  
17 58 53 47 56 50 40 100 83 66 30.09 30.04 29.99 10 7 2 23 7 28 0.15 Rain
18 53 47 40 40 34 29 79 60 41 30.20 30.07 30.00 10 10 10 25 9 31 0.00  
19 54 43 32 32 27 16 89 56 22 30.32 30.26 30.21 10 10 10 14 3 17 0.00  
20 59 48 36 33 28 23 64 46 27 30.22 30.12 30.02 10 10 10 16 8 21 0.00  
21 57 52 47 48 37 23 77 55 32 30.01 29.94 29.89 10 10 8 24 16 35 0.02 Rain
22 56 53 50 52 48 44 96 84 71 30.11 29.97 29.88 10 8 2 21 7 25 0.49 Rain , Thunderstorm
23 62 55 48 55 50 45 100 87 74 30.10 29.96 29.88 10 6 2 25 12 35 1.17 Rain
24 56 50 43 47 43 39 100 83 66 30.21 30.13 30.05 10 8 2 12 3 15 0.00  
25 53 46 39 48 42 37 93 76 59 30.16 29.98 29.84 10 9 4 24 8 30 0.28 Rain
26 54 49 44 52 46 41 100 86 71 30.11 30.00 29.90 10 9 4 20 6 25 0.36 Rain
27 54 47 40 41 39 37 96 78 59 30.18 30.14 30.11 10 10 10 10 3 14 0.00  
28 51 44 37 41 37 35 92 73 54 30.19 30.11 30.03 10 10 7 12 5 14 0.03 Rain
29 52 46 39 45 41 37 100 84 68 30.10 30.04 30.00 10 9 3 7 2 9 0.16 Rain
30 54 45 36 40 37 34 100 77 54 30.18 30.10 30.05 10 10 10 15 4 18 0.00  
31 53 43 33 36 31 27 96 67 38 30.31 30.26 30.19 10 10 9 9 2 13 0.00