Weather History for Vacaville, CA

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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 73 °F 59 °F 53 °F
Mean Temperature 64 °F 46 °F 40 °F
Min Temperature 55 °F 33 °F 24 °F
Degree Days  
Heating Degree Days (base 65) 26 19 1 589
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 14 1 0 30
Dew Point  
Dew Point 53 °F 30 °F 4 °F
Precipitation  
Precipitation 0.14 in 0.00 in 0.00 in 0.14 in
Snowdepth - - - -
Wind  
Wind 28 mph 4 mph 0 mph
Gust Wind 43 mph 25 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.61 in 30.21 in 29.77 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 15, 2011 Rise Set
Actual Time 7:17 AM PST 4:48 PM PST
Civil Twilight 6:47 AM PST 5:17 PM PST
Nautical Twilight 6:14 AM PST 5:51 PM PST
Astronomical Twilight 5:42 AM PST 6:23 PM PST
Moon 10:16 PM PST (12/15) 10:39 AM PST (12/15)
Length of Visible Light 10h 30m
Length of Day
9h 30m
Waning Gibbous, 73% of the Moon is Illuminated
Dec 15
Waning Gibbous
Dec 17
Last Quarter
Dec 24
New
Dec 31
First Quarter
Jan 8
Full

Weather History Calendar

Precipitation Actual month total 0.14 Average Month Total: 3.52
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Clear
Actual:
64 | 52 0.00
Average:
59 | 38 0.06
Clear
Actual:
73 | 55 0.00
Average:
58 | 38 0.14
Clear
Actual:
63 | 50 0.00
Average:
58 | 38 0.21
Clear
Actual:
60 | 34 0.00
Average:
58 | 37 0.18
Clear
Actual:
62 | 34 0.00
Average:
58 | 37 0.13
Clear
Actual:
57 | 28 0.00
Average:
58 | 38 0.12
Clear
Actual:
57 | 28 0.00
Average:
57 | 39 0.07
Clear
Actual:
59 | 30 0.00
Average:
57 | 38 0.12
Clear
Actual:
61 | 28 0.00
Average:
56 | 38 0.11
Clear
Actual:
59 | 28 0.00
Average:
56 | 37 0.12
Scattered Clouds
Actual:
54 | 30 0.00
Average:
56 | 37 0.09
Partly Cloudy
Actual:
55 | 37 0.00
Average:
54 | 35 0.04
Clear
Actual:
57 | 28 0.00
Average:
54 | 36 0.02
Scattered Clouds
Actual:
55 | 27 0.00
Average:
54 | 36 0.10
Rain
Actual:
54 | 41 0.14
Average:
55 | 37 0.09
Clear
Actual:
64 | 36 0.00
Average:
54 | 35 0.06
Clear
Actual:
55 | 30 0.00
Average:
56 | 36 0.12
Fog
Actual:
54 | 32 0.00
Average:
54 | 35 0.07
Clear
Actual:
64 | 32 0.00
Average:
54 | 35 0.16
Fog
Actual:
53 | 32 0.00
Average:
53 | 35 0.16
Fog
Actual:
66 | 26 0.00
Average:
52 | 35 0.13
Clear
Actual:
61 | 28 0.00
Average:
52 | 35 0.14
Clear
Actual:
55 | 24 0.00
Average:
52 | 34 0.15
Clear
Actual:
57 | 25 0.00
Average:
53 | 34 0.27
Clear
Actual:
55 | 27 0.00
Average:
52 | 35 0.14
Clear
Actual:
55 | 25 0.00
Average:
52 | 34 0.02
Clear
Actual:
61 | 28 0.00
Average:
53 | 36 0.10
Clear
Actual:
60 | 34 0.00
Average:
54 | 35 0.16
Clear
Actual:
55 | 37 0.00
Average:
53 | 37 0.12
Partly Cloudy
Actual:
57 | 39 0.00
Average:
53 | 34 0.09
Clear
Actual:
62 | 34 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

2011 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 64 58 52 27 19 14 37 23 16 30.27 30.18 30.08 10 10 10 25 19 43 0.00  
2 73 64 55 18 16 9 23 16 11 30.08 30.02 29.96 10 10 10 22 16 34 0.00  
3 63 56 50 17 12 9 23 18 12 30.26 30.18 30.09 10 10 10 21 15 34 0.00  
4 60 47 34 29 24 17 68 42 23 30.31 30.23 30.15 10 10 10 15 5 30 0.00  
5 62 48 34 28 21 16 73 36 18 30.32 30.25 30.16 10 10 10 22 12 33 0.00  
6 57 42 28 30 27 25 85 62 28 30.44 30.37 30.34 10 10 10 5 0 - 0.00  
7 57 42 28 33 30 26 92 64 36 30.35 30.24 30.17 10 9 7 8 1 - 0.00  
8 59 44 30 34 32 27 92 71 38 30.20 30.16 30.12 10 9 7 5 0 - 0.00  
9 61 44 28 37 32 26 96 72 38 30.27 30.21 30.18 10 9 7 4 1 - 0.00  
10 59 44 28 38 32 28 100 77 41 30.20 30.13 30.03 10 9 8 6 1 - 0.00  
11 54 42 30 40 35 29 92 77 55 30.02 29.93 29.86 10 9 5 9 2 - 0.00  
12 55 46 37 39 36 32 85 69 40 29.89 29.82 29.77 10 9 5 9 3 16 0.00  
13 57 42 28 38 31 26 92 74 34 30.14 30.02 29.90 10 10 10 6 1 - 0.00  
14 55 41 27 40 33 26 96 72 43 30.33 30.26 30.18 10 10 9 6 1 - 0.00  
15 54 48 41 45 41 32 100 81 45 30.31 30.24 30.20 10 7 2 16 5 25 0.14 Rain
16 64 52 36 37 30 28 93 45 26 30.28 30.20 30.12 10 10 4 20 12 30 0.00  
17 55 42 30 43 34 28 100 91 59 30.23 30.18 30.10 6 3 1 5 1 - 0.00  
18 54 43 32 43 39 32 100 90 62 30.24 30.17 30.11 10 3 0 7 3 - 0.00 Fog
19 64 48 32 37 31 22 100 67 23 30.11 30.08 30.02 10 7 2 21 3 31 0.00  
20 53 43 32 40 35 27 100 86 52 30.15 30.10 30.06 10 4 0 7 2 - 0.00 Fog
21 66 46 26 41 27 5 100 76 12 30.17 30.12 30.05 10 4 0 28 3 38 0.00 Fog
22 61 44 28 19 9 4 67 24 11 30.49 30.35 30.20 10 9 1 20 13 34 0.00  
23 55 40 24 24 21 18 81 58 24 30.61 30.54 30.49 10 10 10 5 1 - 0.00  
24 57 41 25 29 24 21 85 66 30 30.54 30.48 30.41 10 10 8 6 1 - 0.00  
25 55 41 27 33 28 23 92 74 42 30.48 30.40 30.32 10 6 4 4 0 - 0.00  
26 55 40 25 39 30 24 100 76 39 30.37 30.32 30.29 10 8 5 6 1 - 0.00  
27 61 44 28 39 34 27 96 77 39 30.39 30.34 30.29 10 9 7 6 1 - 0.00  
28 60 47 34 38 37 33 96 69 44 30.42 30.35 30.30 10 8 7 5 1 - 0.00  
29 55 46 37 43 39 34 93 78 57 30.29 30.21 30.11 7 6 4 6 1 - 0.00  
30 57 48 39 53 48 37 97 90 78 30.23 30.18 30.12 10 9 3 16 5 21 0.00  
31 62 48 34 38 30 23 89 59 22 30.26 30.22 30.19 10 10 7 9 4 16 0.00