Weather History for Santa Rosa, CA

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Month of January, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 68 °F 58 °F 47 °F
Mean Temperature 54 °F 45 °F 38 °F
Min Temperature 48 °F 32 °F 23 °F
Degree Days  
Heating Degree Days (base 65) 27 20 11 619
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 4 0 0 11
Dew Point  
Dew Point 53 °F 35 °F 10 °F
Precipitation  
Precipitation 0.44 in 0.03 in 0.00 in 0.93 in
Snowdepth - - - -
Wind  
Wind 24 mph 3 mph 0 mph
Gust Wind 31 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.47 in 30.18 in 29.94 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Jan. 19, 2013 Rise Set
Actual Time 7:25 AM PST 5:19 PM PST
Civil Twilight 6:56 AM PST 5:47 PM PST
Nautical Twilight 6:24 AM PST 6:20 PM PST
Astronomical Twilight 5:52 AM PST 6:51 PM PST
Moon 11:47 AM PST (1/19) 1:06 AM PST (1/19)
Length of Visible Light 10h 51m
Length of Day
9h 53m
First Quarter, 58% of the Moon is Illuminated
Jan 19
First Quarter
Jan 26
Full
Feb 3
Last Quarter
Feb 9
New
Feb 17
First Quarter

Weather History Calendar

Precipitation Actual month total 0.93 Normal Month Total: 7.05
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Fog
Actual:
59 | 31 0.00
Average:
56 | 36 0.33
Fog
Actual:
56 | 26 0.00
Average:
56 | 36 0.32
Fog
Actual:
55 | 26 0.00
Average:
56 | 36 0.30
Fog
Actual:
58 | 29 0.00
Average:
56 | 36 0.29
Rain
Actual:
47 | 30 0.44
Average:
56 | 36 0.29
Fog
Actual:
48 | 36 0.00
Average:
56 | 36 0.29
Fog
Actual:
60 | 33 0.00
Average:
56 | 36 0.29
Fog
Actual:
61 | 36 0.00
Average:
56 | 36 0.29
Rain
Actual:
51 | 35 0.02
Average:
56 | 36 0.29
Scattered Clouds
Actual:
51 | 29 0.00
Average:
56 | 36 0.27
Scattered Clouds
Actual:
54 | 31 0.00
Average:
56 | 36 0.27
Scattered Clouds
Actual:
51 | 28 0.00
Average:
56 | 36 0.27
Fog
Actual:
52 | 23 0.00
Average:
56 | 36 0.25
Clear
Actual:
56 | 26 0.00
Average:
56 | 36 0.23
Fog
Actual:
54 | 26 0.00
Average:
57 | 37 0.22
Fog
Actual:
59 | 26 0.00
Average:
57 | 37 0.20
Scattered Clouds
Actual:
61 | 27 0.00
Average:
57 | 37 0.20
Fog
Actual:
62 | 26 0.00
Average:
57 | 37 0.19
Fog
Actual:
65 | 27 0.00
Average:
57 | 37 0.18
Fog
Actual:
63 | 27 0.00
Average:
57 | 37 0.18
Fog
Actual:
63 | 26 0.00
Average:
57 | 37 0.17
Fog
Actual:
61 | 29 0.00
Average:
57 | 37 0.18
Rain
Actual:
51 | 43 0.40
Average:
57 | 37 0.17
Rain
Actual:
59 | 48 0.06
Average:
57 | 37 0.17
Fog
Actual:
62 | 44 T
Average:
58 | 37 0.17
Fog
Actual:
59 | 39 0.01
Average:
58 | 37 0.17
Scattered Clouds
Actual:
57 | 34 0.00
Average:
58 | 37 0.17
Partly Cloudy
Actual:
58 | 35 0.00
Average:
58 | 37 0.17
Scattered Clouds
Actual:
64 | 41 0.00
Average:
58 | 37 0.17
Clear
Actual:
68 | 36 0.00
Average:
58 | 37 0.18
Fog
Actual:
66 | 32 0.00
Average:
58 | 37 0.18
 

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

2013 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 59 45 31 36 31 26 100 65 30 30.27 30.22 30.17 10 9 5 10 3 12 0.00 Fog
2 56 41 26 35 30 24 100 73 46 30.23 30.18 30.12 10 8 1 7 2 8 0.00 Fog
3 55 41 26 38 30 24 100 71 41 30.26 30.19 30.16 10 5 0 6 1 8 0.00 Fog
4 58 44 29 38 34 29 100 74 47 30.28 30.23 30.16 10 6 1 8 2 8 0.00 Fog
5 47 39 30 45 37 28 100 88 76 30.24 30.17 30.05 9 3 0 9 2 10 0.44 Fog , Rain
6 48 42 36 43 38 35 100 93 80 30.19 30.15 30.05 10 4 0 8 2 - 0.00 Fog
7 60 47 33 47 38 32 100 80 60 30.24 30.18 30.14 10 3 0 7 2 8 0.00 Fog
8 61 49 36 47 41 36 100 80 60 30.23 30.17 30.11 10 3 0 8 2 10 0.00 Fog
9 51 43 35 48 40 31 100 81 61 30.15 30.07 29.97 10 3 0 17 3 24 0.02 Fog , Rain
10 51 40 29 34 30 28 96 69 41 30.19 30.11 30.06 10 10 8 18 6 24 0.00  
11 54 43 31 35 31 28 82 66 50 30.24 30.17 30.10 10 10 9 14 4 18 0.00  
12 51 40 28 34 29 24 92 66 39 30.24 30.18 30.12 10 10 7 9 2 10 0.00  
13 52 38 23 33 25 11 92 63 33 30.26 30.21 30.16 10 8 0 24 2 31 0.00 Fog
14 56 41 26 32 25 10 89 57 25 30.38 30.32 30.22 10 10 8 22 3 26 0.00  
15 54 40 26 33 29 25 92 65 38 30.47 30.42 30.39 10 8 2 8 2 9 0.00 Fog
16 59 43 26 37 30 25 100 72 43 30.44 30.37 30.26 10 5 0 6 1 8 0.00 Fog
17 61 44 27 38 31 25 100 68 36 30.28 30.22 30.14 10 3 0 6 1 7 0.00  
18 62 44 26 40 31 24 100 68 36 30.22 30.17 30.12 10 5 0 5 1 7 0.00 Fog
19 65 46 27 41 32 24 100 70 39 30.25 30.19 30.14 10 6 0 7 1 9 0.00 Fog
20 63 45 27 38 31 25 96 66 36 30.24 30.19 30.11 10 6 0 8 1 9 0.00 Fog
21 63 45 26 40 32 24 96 66 36 30.17 30.12 30.07 10 8 2 7 2 9 0.00 Fog
22 61 45 29 41 34 28 100 71 42 30.11 30.06 29.97 10 7 0 9 2 10 0.00 Fog
23 51 47 43 48 45 39 100 89 77 30.07 30.02 29.94 10 5 1 13 3 16 0.40 Rain
24 59 54 48 52 48 46 100 88 75 30.18 30.11 30.05 9 3 0 9 2 10 0.06 Fog , Rain
25 62 53 44 53 49 44 100 84 67 30.18 30.12 30.03 10 3 0 6 1 7 T Fog
26 59 49 39 47 41 33 100 70 40 30.06 30.01 29.95 10 4 0 20 5 25 0.01 Fog
27 57 46 34 35 33 30 85 62 38 30.17 30.11 30.05 10 10 10 17 6 23 0.00  
28 58 47 35 38 36 32 89 68 47 30.27 30.21 30.16 10 10 10 20 9 25 0.00  
29 64 53 41 41 38 35 83 61 39 30.35 30.29 30.25 10 10 10 18 7 23 0.00  
30 68 52 36 44 40 34 93 69 44 30.32 30.27 30.23 10 10 7 14 4 16 0.00  
31 66 49 32 44 37 30 100 71 42 30.29 30.24 30.16 10 4 0 8 1 9 0.00 Fog