Santa Rosa, CA

3:43 PM PDT on May 25, 2017 (GMT -0700)
Sonoma County

Weather History for KSTS - September, 2012

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 96 °F 82 °F 71 °F
Mean Temperature 69 °F 64 °F 59 °F
Min Temperature 51 °F 46 °F 39 °F
Degree Days  
Heating Degree Days (base 65) 6 1 0 42
Cooling Degree Days (base 65) 4 1 0 19
Growing Degree Days (base 50) 19 14 8 411
Dew Point  
Dew Point 54 °F 48 °F 30 °F
Precipitation  
Precipitation 0.01 in 0.00 in 0.00 in 0.01 in
Snowdepth - - - -
Wind  
Wind 15 mph 4 mph 0 mph
Gust Wind 18 mph - -
Sea Level Pressure  
Sea Level Pressure 30.11 in 29.96 in 29.77 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 18, 2012 Rise Set
Actual Time 6:55 AM PDT 7:13 PM PDT
Civil Twilight 6:29 AM PDT 7:40 PM PDT
Nautical Twilight 5:58 AM PDT 8:11 PM PDT
Astronomical Twilight 5:26 AM PDT 8:42 PM PDT
Moon 9:59 AM PDT (9/18) 8:44 PM PDT (9/18)
Length of Visible Light 13h 10m
Length of Day
12h 17m
Waxing Crescent, 10% of the Moon is Illuminated
Sep 18
Waxing Crescent
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New

Daily Weather History & Observations

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 78 63 48 54 50 46 93 68 42 30.04 29.96 29.92 10 9 4 14 3 16 0.00  
2 90 67 43 53 46 35 100 58 16 29.98 29.93 29.85 10 6 0 12 3 15 0.00 Fog
3 91 69 46 50 46 39 93 55 16 29.95 29.90 29.86 10 10 9 13 4 16 0.00  
4 82 66 49 52 49 46 100 65 30 30.01 29.97 29.91 10 6 0 14 5 17 0.00 Fog
5 72 61 50 52 50 47 100 73 45 30.00 29.97 29.90 10 5 1 15 4 17 0.00  
6 76 62 48 50 48 45 100 69 38 30.01 29.96 29.92 10 7 0 15 4 17 0.00 Fog
7 82 64 45 48 46 40 93 58 23 30.11 30.03 29.97 10 10 3 14 4 16 0.00  
8 80 64 48 52 49 45 96 66 36 30.06 30.00 29.91 10 8 0 14 4 17 0.00 Fog
9 85 62 39 50 44 37 100 62 23 29.98 29.93 29.83 10 6 0 14 3 18 0.00 Fog
10 88 66 43 51 47 42 93 57 21 29.91 29.84 29.77 10 10 6 13 3 17 T Fog
11 82 64 46 54 50 44 93 66 39 29.94 29.86 29.81 10 9 7 15 3 18 0.00  
12 80 65 49 53 50 46 100 69 37 30.08 30.00 29.93 10 7 0 13 4 16 0.00 Fog
13 86 67 47 52 49 45 93 62 31 30.08 30.03 29.97 10 10 10 13 4 15 0.01  
14 79 65 51 54 51 48 100 71 42 30.10 30.04 29.97 10 8 0 13 5 17 0.00 Fog
15 81 64 47 52 49 46 96 64 32 30.10 30.04 29.96 10 5 0 13 4 15 0.00 Fog
16 80 64 47 50 47 42 100 64 28 30.06 30.00 29.93 10 5 0 13 4 16 0.00 Fog
17 73 61 49 49 47 46 93 69 44 30.07 30.02 29.96 10 9 3 13 5 16 0.00  
18 79 64 49 50 48 46 93 64 35 30.11 30.04 29.97 10 9 3 13 3 16 0.00  
19 79 63 47 50 49 46 100 67 33 30.11 30.05 29.99 10 5 0 13 4 16 0.00 Fog
20 82 62 42 51 45 41 100 66 32 30.07 30.02 29.92 10 6 0 13 3 16 0.00 Fog
21 86 63 40 48 43 38 92 57 22 29.98 29.93 29.84 10 8 0 13 2 16 0.00 Fog
22 87 64 41 47 44 39 93 57 21 29.92 29.87 29.82 10 10 8 10 3 15 0.00  
23 86 66 45 48 45 39 93 58 22 29.94 29.90 29.87 10 10 10 14 4 17 0.00  
24 82 65 48 54 49 46 100 69 37 29.97 29.91 29.83 10 5 0 14 3 16 0.00 Fog
25 75 59 43 53 47 43 100 73 46 29.91 29.87 29.81 10 5 0 14 4 16 0.00 Fog
26 80 65 50 53 50 47 96 70 43 29.90 29.86 29.79 10 3 0 10 3 13 0.00 Fog
27 90 69 47 53 49 46 100 65 29 29.93 29.87 29.79 10 5 0 10 3 13 0.00 Fog
28 71 59 47 52 49 46 100 77 53 29.97 29.90 29.86 10 5 0 12 5 15 0.00 Fog
29 81 65 48 54 50 46 100 68 35 30.03 29.98 29.94 10 5 1 13 3 18 0.00  
30 96 69 42 48 43 30 100 56 11 30.05 30.00 29.93 10 8 2 9 2 13 0.00