Santa Rosa, CA

5:13 AM PST on January 22, 2018 (GMT -0800)
Sonoma County

Weather History for KSTS - January, 2015

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Month of January, 2015

  Max Avg Min Sum
Temperature  
Max Temperature 80 °F 63 °F 54 °F
Mean Temperature 61 °F 50 °F 41 °F
Min Temperature 52 °F 38 °F 27 °F
Degree Days  
Heating Degree Days (base 65) 24 15 4 451
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 11 2 0 54
Dew Point  
Dew Point 57 °F 42 °F 26 °F
Precipitation  
Precipitation 0.08 in 0.00 in 0.00 in 0.12 in
Snowdepth - - - -
Wind  
Wind 15 mph 2 mph 0 mph
Gust Wind 17 mph - -
Sea Level Pressure  
Sea Level Pressure 30.43 in 30.16 in 29.86 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Jan. 19, 2015 Rise Set
Actual Time 7:25 AM PST 5:18 PM PST
Civil Twilight 6:56 AM PST 5:47 PM PST
Nautical Twilight 6:24 AM PST 6:19 PM PST
Astronomical Twilight 5:52 AM PST 6:51 PM PST
Moon 6:22 AM PST (1/19) 4:52 PM PST (1/19)
Length of Visible Light 10h 50m
Length of Day
9h 52m
Waning Crescent, 1% of the Moon is Illuminated
Jan 19
Waning Crescent
Jan 20
New
Jan 26
First Quarter
Feb 3
Full
Feb 11
Last Quarter

Daily Weather History & Observations

2015 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 55 41 27 32 29 26 92 65 38 30.16 30.10 30.05 10 10 8 14 3 16 0.00  
2 54 41 27 35 32 27 100 73 46 30.21 30.16 30.09 10 8 2 6 1 8 0.00 Fog
3 56 43 29 40 32 28 100 72 43 30.31 30.22 30.17 10 5 0 6 2 9 0.00 Fog
4 58 46 33 38 36 32 100 72 43 30.43 30.36 30.30 10 9 6 14 2 16 T  
5 58 45 32 43 37 30 100 79 57 30.39 30.32 30.21 10 5 1 8 1 10 0.00 Fog
6 63 48 33 47 38 33 100 78 55 30.27 30.22 30.15 10 4 0 7 1 8 0.00 Fog
7 66 49 32 47 38 32 100 73 45 30.22 30.15 30.06 10 4 0 6 1 7 0.00 Fog
8 59 47 35 47 41 36 100 84 67 30.10 30.04 29.99 10 6 0 9 1 10 0.00 Fog
9 66 53 39 48 44 39 100 74 48 30.02 29.98 29.93 10 7 0 7 1 8 0.00 Fog
10 57 48 39 49 44 39 100 89 77 30.03 29.98 29.94 10 4 0 7 1 8 0.00 Fog
11 59 50 41 51 45 41 100 89 77 30.16 30.07 29.98 10 3 0 7 2 9 0.00 Fog
12 68 54 40 51 44 39 100 74 48 30.25 30.19 30.16 10 6 0 7 2 10 0.01 Fog
13 70 54 38 47 42 37 100 66 31 30.19 30.14 30.08 10 10 2 9 3 10 0.00 Fog
14 62 47 32 48 41 33 100 78 55 30.28 30.22 30.14 10 6 1 10 2 14 0.00  
15 55 46 36 47 42 36 100 86 71 30.33 30.27 30.23 6 3 0 15 1 17 0.00 Fog
16 55 49 43 54 49 43 100 96 92 30.28 30.24 30.20 5 2 1 6 1 6 0.08 Rain
17 56 53 50 54 52 50 100 97 93 30.29 30.24 30.19 5 2 0 6 1 7 0.02 Fog , Rain
18 62 57 52 57 54 52 100 89 78 30.32 30.26 30.23 10 3 0 7 1 8 0.00 Fog
19 66 55 44 55 50 44 100 76 52 30.31 30.23 30.16 10 5 0 8 3 10 0.00 Fog
20 62 51 39 49 43 39 100 78 56 30.18 30.10 30.03 10 5 0 5 2 - 0.00 Fog
21 62 49 36 47 41 37 100 78 55 30.18 30.11 30.06 10 4 0 8 2 9 0.01 Fog
22 60 49 37 48 41 37 100 81 62 30.34 30.25 30.19 7 2 0 7 2 9 0.00 Fog
23 71 54 37 52 43 37 100 74 47 30.37 30.31 30.21 10 3 0 6 1 7 0.00 Fog
24 65 51 37 49 43 37 100 78 56 30.24 30.18 30.06 9 4 0 9 2 10 0.00 Fog
25 63 51 39 49 43 39 100 80 60 30.15 30.09 29.99 10 3 0 6 1 8 0.00 Fog
26 65 50 34 49 40 34 100 76 52 30.06 30.01 29.94 10 4 0 7 2 9 0.00 Fog
27 63 55 47 51 49 46 100 83 65 30.24 30.14 29.98 10 9 5 6 1 6 0.00 Fog
28 70 58 45 51 47 44 100 76 51 30.25 30.19 30.11 10 7 0 10 2 14 0.00 Fog
29 70 54 38 51 43 37 100 73 45 30.17 30.11 30.03 10 5 0 9 2 10 0.00 Fog
30 73 55 36 51 42 36 100 74 47 30.05 30.00 29.86 10 4 0 12 2 13 0.00 Fog
31 80 61 41 46 40 32 89 53 17 30.02 29.94 29.90 10 10 10 13 4 14 0.00