Weather History for Vacaville, CA

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 70 °F 55 °F 44 °F
Mean Temperature 58 °F 47 °F 36 °F
Min Temperature 53 °F 38 °F 26 °F
Degree Days  
Heating Degree Days (base 65) 29 18 8 572
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 8 1 0 31
Dew Point  
Dew Point 61 °F 41 °F 25 °F
Precipitation  
Precipitation 1.85 in 0.27 in 0.00 in 8.26 in
Snowdepth - - - -
Wind  
Wind 23 mph 4 mph 0 mph
Gust Wind 34 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.34 in 30.06 in 29.71 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 19, 2012 Rise Set
Actual Time 7:20 AM PST 4:50 PM PST
Civil Twilight 6:50 AM PST 5:19 PM PST
Nautical Twilight 6:17 AM PST 5:53 PM PST
Astronomical Twilight 5:45 AM PST 6:25 PM PST
Moon 11:37 AM PST (12/19) No Moon Set
Length of Visible Light 10h 28m
Length of Day
9h 29m
Waxing Crescent, 46% of the Moon is Illuminated
Dec 19
Waxing Crescent
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

Weather History Calendar

Precipitation Actual month total 8.26 Average Month Total: 3.52
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
62 | 53 1.05
Average:
59 | 38 0.06
Rain
Actual:
61 | 44 1.38
Average:
58 | 38 0.14
Scattered Clouds
Actual:
60 | 39 0.00
Average:
58 | 38 0.21
Rain
Actual:
59 | 50 0.08
Average:
58 | 37 0.18
Rain
Actual:
55 | 53 0.31
Average:
58 | 37 0.13
Partly Cloudy
Actual:
61 | 44 0.01
Average:
58 | 38 0.12
Clear
Actual:
61 | 37 0.00
Average:
57 | 39 0.07
Clear
Actual:
57 | 35 0.00
Average:
57 | 38 0.12
Clear
Actual:
70 | 44 0.00
Average:
56 | 38 0.11
Clear
Actual:
64 | 37 0.00
Average:
56 | 37 0.12
Fog
Actual:
54 | 36 0.00
Average:
56 | 37 0.09
Rain
Actual:
55 | 37 0.01
Average:
54 | 35 0.04
Scattered Clouds
Actual:
53 | 32 0.00
Average:
54 | 36 0.02
Partly Cloudy
Actual:
48 | 30 0.00
Average:
54 | 36 0.10
Rain
Actual:
44 | 28 0.27
Average:
55 | 37 0.09
Rain
Actual:
50 | 42 0.10
Average:
54 | 35 0.06
Rain
Actual:
60 | 42 0.21
Average:
56 | 36 0.12
Scattered Clouds
Actual:
53 | 35 0.00
Average:
54 | 35 0.07
Clear
Actual:
50 | 28 0.00
Average:
54 | 35 0.16
Partly Cloudy
Actual:
53 | 26 0.00
Average:
53 | 35 0.16
Rain
Actual:
48 | 41 0.67
Average:
52 | 35 0.13
Rain
Actual:
57 | 45 1.20
Average:
52 | 35 0.14
Rain
Actual:
51 | 44 1.85
Average:
52 | 34 0.15
Clear
Actual:
54 | 37 0.00
Average:
53 | 34 0.27
Rain
Actual:
45 | 37 1.11
Average:
52 | 35 0.14
Scattered Clouds
Actual:
55 | 37 0.01
Average:
52 | 34 0.02
Clear
Actual:
54 | 36 0.00
Average:
53 | 36 0.10
Partly Cloudy
Actual:
44 | 30 0.00
Average:
54 | 35 0.16
Partly Cloudy
Actual:
54 | 35 0.00
Average:
53 | 37 0.12
Clear
Actual:
55 | 33 0.00
Average:
53 | 34 0.09
Clear
Actual:
51 | 32 0.00
Average:
53 | 34 0.03
 

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 62 58 53 61 56 52 100 97 80 30.04 29.97 29.86 10 5 2 16 6 22 1.05 Rain
2 61 52 44 59 53 43 100 89 52 30.11 29.87 29.71 10 7 2 23 14 34 1.38 Rain
3 60 50 39 50 45 40 100 82 57 30.22 30.18 30.11 10 10 9 6 1 - 0.00  
4 59 54 50 55 52 48 100 90 72 30.23 30.19 30.16 10 7 1 6 1 - 0.08 Rain
5 55 54 53 56 54 52 100 97 89 30.19 30.16 30.13 10 5 0 7 1 - 0.31 Fog , Rain
6 61 54 44 54 50 43 97 86 64 30.14 30.12 30.08 10 10 10 5 1 - 0.01  
7 61 49 37 45 42 37 100 84 53 30.16 30.11 30.08 10 10 7 6 1 - 0.00  
8 57 46 35 44 40 35 100 82 49 30.13 30.09 30.05 10 10 8 4 1 - 0.00  
9 70 57 44 42 37 28 80 49 31 30.21 30.15 30.10 10 10 10 16 5 28 0.00  
10 64 50 37 47 43 37 100 84 50 30.27 30.20 30.13 10 8 2 6 1 - 0.00  
11 54 45 36 48 43 36 100 92 71 30.11 29.97 29.83 10 5 0 18 3 25 0.00 Fog
12 55 47 37 49 41 35 100 79 47 29.91 29.85 29.82 10 8 2 13 5 - 0.01 Rain
13 53 43 32 38 34 30 96 77 45 29.96 29.90 29.86 - - - 10 3 - 0.00  
14 48 39 30 38 34 29 96 86 63 30.05 29.93 29.83 10 10 9 4 0 - 0.00  
15 44 36 28 43 38 28 100 95 89 30.12 30.07 30.05 10 6 2 6 1 - 0.27 Rain
16 50 46 42 49 44 39 100 91 80 30.14 30.08 30.01 7 4 2 9 4 - 0.10 Rain
17 60 51 42 54 49 37 100 90 62 30.04 29.99 29.96 10 7 2 15 9 22 0.21 Rain
18 53 44 35 35 29 25 93 59 34 30.19 30.06 29.99 10 10 10 15 5 - 0.00  
19 50 39 28 30 28 25 92 71 41 30.34 30.28 30.20 10 10 10 7 2 - 0.00  
20 53 40 26 36 31 25 96 72 45 30.25 30.13 30.01 10 10 6 13 2 - 0.00  
21 48 44 41 47 42 31 100 89 56 29.99 29.93 29.89 10 6 2 15 5 28 0.67 Rain
22 57 51 45 49 46 41 100 90 59 30.09 29.93 29.85 10 8 2 17 10 24 1.20 Rain
23 51 48 44 52 48 44 100 97 88 30.08 29.93 29.85 10 5 1 17 9 28 1.85 Rain
24 54 46 37 43 39 33 100 80 55 30.22 30.16 30.02 10 10 8 9 3 - 0.00  
25 45 41 37 45 41 31 100 94 67 30.16 29.97 29.81 10 6 2 8 1 - 1.11 Rain
26 55 46 37 44 41 37 100 87 57 30.10 29.97 29.86 10 10 9 12 5 17 0.01  
27 54 45 36 42 38 32 100 82 53 30.19 30.15 30.11 10 10 8 5 1 - 0.00  
28 44 37 30 39 36 30 96 87 79 30.21 30.15 30.10 10 10 9 9 2 - 0.00  
29 54 44 35 39 36 34 96 75 53 30.09 30.07 30.03 10 10 10 9 5 17 0.00  
30 55 44 33 37 31 25 96 66 38 30.17 30.11 30.07 10 10 10 14 4 24 0.00  
31 51 42 32 32 28 25 92 60 39 30.32 30.27 30.20 10 10 9 7 3 - 0.00