Weather History for San Bernardino, CA

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 78 °F 61 °F 51 °F
Mean Temperature 60 °F 52 °F 44 °F
Min Temperature 55 °F 42 °F 30 °F
Degree Days  
Heating Degree Days (base 65) 21 13 4 416
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 10 3 0 99
Dew Point  
Dew Point 68 °F 38 °F 7 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 18 mph 2 mph 0 mph
Gust Wind 24 mph 21 mph 20 mph
Sea Level Pressure  
Sea Level Pressure 30.27 in 30.04 in 29.74 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 11, 2012 Rise Set
Actual Time 6:44 AM PST 4:40 PM PST
Civil Twilight 6:17 AM PST 5:07 PM PST
Nautical Twilight 5:45 AM PST 5:39 PM PST
Astronomical Twilight 5:15 AM PST 6:09 PM PST
Moon 4:47 AM PST (12/11) 3:21 PM PST (12/11)
Length of Visible Light 10h 50m
Length of Day
9h 55m
Waning Crescent, 4% of the Moon is Illuminated
Dec 11
Waning Crescent
Dec 13
New
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Weather History Calendar

Precipitation Actual month total 0.00 Average Month Total: 1.64
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Overcast
Actual:
64 | 55 0.00
Average:
69 | 40 0.00
Overcast
Actual:
60 | 55 0.00
Average:
70 | 40 0.02
Partly Cloudy
Actual:
66 | 55 0.00
Average:
69 | 41 0.08
Partly Cloudy
Actual:
69 | 51 0.00
Average:
67 | 41 0.09
Partly Cloudy
Actual:
73 | 42 0.00
Average:
68 | 41 0.10
Fog
Actual:
64 | 48 0.00
Average:
69 | 41 0.17
Clear
Actual:
78 | 42 0.00
Average:
67 | 41 0.16
Scattered Clouds
Actual:
71 | 41 0.00
Average:
68 | 40 0.05
Partly Cloudy
Actual:
69 | 39 0.00
Average:
67 | 39 0.01
Clear
Actual:
75 | 44 0.00
Average:
67 | 39 0.00
Scattered Clouds
Actual:
73 | 39 0.00
Average:
67 | 39 0.01
Partly Cloudy
Actual:
60 | 37 0.00
Average:
65 | 37 0.00
Rain
Actual:
51 | 48 0.00
Average:
64 | 38 0.01
Mostly Cloudy
Actual:
53 | 42 0.00
Average:
67 | 37 0.01
Partly Cloudy
Actual:
53 | 42 0.00
Average:
66 | 38 0.03
Overcast
Actual:
53 | 44 0.00
Average:
66 | 39 0.04
Mostly Cloudy
Actual:
60 | 50 0.00
Average:
66 | 39 0.05
Mostly Cloudy
Actual:
55 | 46 0.00
Average:
63 | 39 0.06
Clear
Actual:
55 | 39 0.00
Average:
63 | 39 0.12
Clear
Actual:
60 | 30 0.00
Average:
63 | 38 0.04
Partly Cloudy
Actual:
62 | 30 0.00
Average:
62 | 37 0.07
Partly Cloudy
Actual:
59 | 33 0.00
Average:
64 | 38 0.06
Partly Cloudy
Actual:
59 | 46 0.00
Average:
65 | 37 0.01
Rain
Actual:
60 | 48 0.00
Average:
66 | 38 0.03
Partly Cloudy
Actual:
57 | 42 0.00
Average:
66 | 39 0.09
Rain
Actual:
53 | 46 0.00
Average:
65 | 38 0.06
Scattered Clouds
Actual:
57 | 39 0.00
Average:
65 | 37 0.06
Partly Cloudy
Actual:
57 | 33 0.00
Average:
64 | 39 0.09
Rain
Actual:
55 | 35 0.00
Average:
63 | 38 0.05
Partly Cloudy
Actual:
51 | 37 0.00
Average:
65 | 38 0.04
Scattered Clouds
Actual:
57 | 33 0.00
Average:
65 | 37 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 64 60 55 55 54 52 88 79 68 30.19 30.13 30.10 10 7 3 4 1 - 0.00  
2 60 58 55 55 55 54 100 90 77 30.15 30.12 30.07 10 6 3 7 1 - 0.00  
3 66 60 55 57 55 54 100 80 68 30.20 30.16 30.12 10 8 4 9 3 - 0.00  
4 69 60 51 55 50 45 94 66 43 30.25 30.19 30.15 10 8 3 6 1 - 0.00  
5 73 58 42 50 41 34 81 50 25 30.14 30.07 30.02 10 10 10 7 1 - 0.00  
6 64 56 48 52 50 46 100 81 64 30.01 29.94 29.89 3 2 0 5 1 - 0.00 Fog
7 78 60 42 45 35 25 87 40 15 29.97 29.94 29.89 10 9 7 10 4 - 0.00  
8 71 56 41 45 34 27 66 44 23 29.99 29.94 29.90 10 10 10 6 1 - 0.00  
9 69 54 39 46 38 34 81 48 28 30.06 30.03 29.99 10 9 7 7 1 - 0.00  
10 75 60 44 32 27 23 61 28 16 30.15 30.08 30.03 10 10 10 18 3 20 0.00  
11 73 56 39 37 30 25 70 37 16 30.06 30.00 29.94 10 9 7 6 2 - 0.00  
12 60 48 37 45 41 32 81 61 48 29.98 29.90 29.86 10 9 7 13 4 - 0.00  
13 51 50 48 48 46 43 94 87 76 29.83 29.79 29.74 7 5 2 12 3 - 0.00 Rain
14 53 48 42 39 36 30 81 64 41 29.98 29.91 29.84 10 10 10 13 4 - 0.00  
15 53 48 42 41 38 34 87 68 47 30.05 30.01 29.99 10 9 7 7 1 - 0.00  
16 53 48 44 46 43 39 87 76 62 30.17 30.14 30.12 10 9 7 7 2 - 0.00  
17 60 55 50 48 48 46 94 75 63 30.16 30.10 30.02 10 7 3 7 1 - 0.00  
18 55 50 46 50 42 16 94 73 29 29.89 29.85 29.79 10 7 1 17 4 24 0.00  
19 55 48 39 52 16 7 88 31 15 30.27 30.20 30.13 10 10 7 18 7 20 0.00  
20 60 45 30 30 22 16 86 42 19 30.25 30.16 30.10 10 10 10 6 0 - 0.00  
21 62 46 30 68 27 18 80 36 5 30.12 30.08 30.04 10 10 10 7 3 - 0.00  
22 59 46 33 41 29 27 75 46 29 30.16 30.13 30.10 10 10 10 8 2 - 0.00  
23 59 52 46 46 42 39 77 63 48 30.21 30.16 30.12 10 9 7 8 3 - 0.00  
24 60 54 48 50 47 34 100 82 36 30.12 30.07 29.99 10 7 1 6 2 - 0.00 Rain
25 57 50 42 39 34 25 76 53 29 30.12 30.07 30.01 10 10 10 5 1 - 0.00  
26 53 50 46 46 44 43 93 82 67 29.97 29.94 29.92 10 7 2 9 2 - 0.00 Rain
27 57 48 39 41 32 25 93 55 29 30.06 29.99 29.94 10 9 7 10 3 - 0.00  
28 57 45 33 30 23 18 75 36 23 30.18 30.11 30.07 10 10 10 7 1 - 0.00  
29 55 45 35 43 36 27 93 72 44 30.08 30.02 29.97 10 7 4 9 4 - 0.00 Rain
30 51 44 37 39 34 27 93 65 41 30.00 29.94 29.89 10 10 10 12 2 - 0.00  
31 57 45 33 39 24 16 76 42 21 30.23 30.18 30.14 10 10 10 12 3 21 0.00