Weather History for Santa Rosa, CA

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Month of August, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 95 °F 83 °F 71 °F
Mean Temperature 73 °F 67 °F 62 °F
Min Temperature 55 °F 51 °F 45 °F
Degree Days  
Heating Degree Days (base 65) 3 0 0 8
Cooling Degree Days (base 65) 8 3 0 79
Growing Degree Days (base 50) 22 16 11 504
Dew Point  
Dew Point 60 °F 53 °F 45 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 16 mph 5 mph 0 mph
Gust Wind 28 mph 20 mph 20 mph
Sea Level Pressure  
Sea Level Pressure 30.04 in 29.89 in 29.69 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Aug. 20, 2011 Rise Set
Actual Time 6:29 AM PDT 7:58 PM PDT
Civil Twilight 6:01 AM PDT 8:26 PM PDT
Nautical Twilight 5:28 AM PDT 9:00 PM PDT
Astronomical Twilight 4:52 AM PDT 9:35 PM PDT
Moon 11:16 PM PDT (8/20) 1:09 PM PDT (8/20)
Length of Visible Light 14h 24m
Length of Day
13h 29m
Waning Gibbous, 61% of the Moon is Illuminated
Aug 20
Waning Gibbous
Aug 21
Last Quarter
Aug 28
New
Sep 4
First Quarter
Sep 12
Full

Weather History Calendar

Precipitation Actual month total 0.00 Normal Month Total: 0.08
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
76 | 53 0.00
Average:
83 | 52 0.00
Partly Cloudy
Actual:
83 | 51 0.00
Average:
83 | 52 0.00
Partly Cloudy
Actual:
81 | 54 0.00
Average:
83 | 51 0.00
Fog
Actual:
80 | 55 0.00
Average:
83 | 51 0.00
Partly Cloudy
Actual:
83 | 54 0.00
Average:
83 | 51 0.00
Partly Cloudy
Actual:
77 | 54 0.00
Average:
83 | 51 0.01
Partly Cloudy
Actual:
79 | 54 0.00
Average:
83 | 51 0.00
Fog
Actual:
83 | 52 0.00
Average:
83 | 51 0.00
Fog
Actual:
89 | 50 0.00
Average:
83 | 51 0.00
Scattered Clouds
Actual:
81 | 49 0.00
Average:
83 | 51 0.00
Fog
Actual:
82 | 52 0.00
Average:
83 | 51 0.00
Fog
Actual:
84 | 48 0.00
Average:
83 | 51 0.00
Fog
Actual:
89 | 47 0.00
Average:
83 | 51 0.00
Fog
Actual:
87 | 49 0.00
Average:
83 | 51 0.00
Clear
Actual:
87 | 47 0.00
Average:
83 | 51 0.00
Fog
Actual:
87 | 49 0.00
Average:
83 | 51 0.00
Partly Cloudy
Actual:
84 | 52 0.00
Average:
83 | 51 0.00
Fog
Actual:
82 | 51 0.00
Average:
83 | 51 0.00
Partly Cloudy
Actual:
77 | 52 0.00
Average:
84 | 51 0.00
Partly Cloudy
Actual:
71 | 52 0.00
Average:
84 | 51 0.01
Partly Cloudy
Actual:
75 | 54 0.00
Average:
84 | 51 0.00
Partly Cloudy
Actual:
82 | 55 0.00
Average:
84 | 51 0.01
Fog
Actual:
95 | 50 0.00
Average:
84 | 51 0.00
Scattered Clouds
Actual:
87 | 54 0.00
Average:
84 | 51 0.01
Partly Cloudy
Actual:
86 | 55 0.00
Average:
84 | 51 0.00
Fog
Actual:
84 | 53 0.00
Average:
84 | 51 0.01
Fog
Actual:
84 | 50 0.00
Average:
84 | 51 0.00
Fog
Actual:
85 | 51 0.00
Average:
84 | 51 0.01
Fog
Actual:
88 | 50 0.00
Average:
84 | 51 0.01
Fog
Actual:
80 | 45 0.00
Average:
84 | 51 0.00
Fog
Actual:
73 | 50 0.00
Average:
84 | 51 0.01
 

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
Aug high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 76 65 53 56 53 51 93 70 46 30.02 29.98 29.93 10 9 3 13 5 16 0.00  
2 83 67 51 55 52 48 100 71 42 30.00 29.93 29.85 10 7 2 13 5 16 0.00  
3 81 68 54 57 54 53 100 71 42 29.91 29.86 29.78 10 5 1 15 5 18 0.00  
4 80 68 55 57 54 54 93 69 45 29.94 29.90 29.86 10 8 0 15 6 20 0.00 Fog
5 83 69 54 60 55 52 100 72 43 29.96 29.91 29.86 10 7 2 14 5 17 0.00  
6 77 66 54 57 54 52 100 77 54 29.97 29.93 29.89 10 7 1 15 6 23 0.00  
7 79 67 54 57 53 52 100 73 45 29.99 29.94 29.89 10 8 2 15 5 20 0.00  
8 83 68 52 57 53 50 100 70 40 29.98 29.93 29.86 10 6 0 15 5 18 0.00 Fog
9 89 70 50 57 52 48 100 67 34 29.91 29.87 29.79 10 5 0 15 4 16 0.00 Fog
10 81 65 49 57 52 47 93 69 45 29.88 29.83 29.81 10 9 7 16 5 20 0.00  
11 82 67 52 56 53 51 100 71 42 29.94 29.89 29.86 10 6 0 15 5 18 0.00 Fog
12 84 66 48 57 52 48 100 70 39 29.95 29.90 29.85 10 7 0 14 4 17 0.00 Fog
13 89 68 47 57 51 45 93 61 29 29.89 29.85 29.79 10 8 0 13 4 16 0.00 Fog
14 87 68 49 55 50 47 89 62 34 29.92 29.88 29.84 10 10 7 14 5 18 0.00 Fog
15 87 67 47 55 50 45 93 62 30 29.91 29.88 29.83 10 10 10 16 4 20 0.00  
16 87 68 49 56 53 48 100 66 32 29.97 29.91 29.88 10 10 10 14 5 18 0.00 Fog
17 84 68 52 56 54 51 100 70 40 30.04 29.99 29.94 10 6 1 16 5 20 0.00  
18 82 67 51 56 52 50 100 70 39 30.00 29.94 29.86 10 5 0 14 4 17 0.00 Fog
19 77 65 52 55 51 48 100 73 46 29.91 29.85 29.79 10 8 2 14 5 17 0.00  
20 71 62 52 54 52 50 100 79 57 29.93 29.88 29.82 10 8 2 14 4 16 0.00  
21 75 65 54 56 53 52 93 73 53 29.98 29.94 29.91 10 9 3 14 4 16 0.00  
22 82 69 55 58 55 52 93 69 45 30.04 29.97 29.92 10 9 3 12 3 14 0.00  
23 95 73 50 58 53 47 96 58 20 29.92 29.87 29.81 10 10 10 12 3 15 0.00 Fog
24 87 71 54 56 54 51 93 63 32 29.91 29.88 29.84 10 10 10 14 5 28 0.00  
25 86 71 55 59 56 54 100 71 42 29.92 29.86 29.80 10 9 1 13 4 16 0.00  
26 84 69 53 58 54 52 100 71 42 29.92 29.88 29.83 10 4 0 13 5 26 0.00 Fog
27 84 67 50 58 52 50 100 70 39 29.98 29.92 29.86 10 5 0 13 4 15 0.00 Fog
28 85 68 51 58 53 51 100 69 37 29.95 29.89 29.81 10 5 0 13 4 17 0.00 Fog
29 88 69 50 57 52 48 100 67 34 29.90 29.83 29.75 10 6 0 15 4 17 0.00 Fog
30 80 63 45 57 50 45 100 73 45 29.82 29.78 29.69 10 6 0 14 4 17 0.00 Fog
31 73 62 50 55 52 49 100 77 53 29.80 29.75 29.72 10 4 0 13 4 16 0.00 Fog