Weather History for Santa Rosa, CA

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Month of September, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 96 °F 82 °F 69 °F
Mean Temperature 73 °F 66 °F 60 °F
Min Temperature 62 °F 50 °F 41 °F
Degree Days  
Heating Degree Days (base 65) 5 1 0 30
Cooling Degree Days (base 65) 8 2 0 68
Growing Degree Days (base 50) 23 16 10 476
Dew Point  
Dew Point 64 °F 51 °F 28 °F
Precipitation  
Precipitation 0.24 in 0.02 in 0.00 in 0.49 in
Snowdepth - - - -
Wind  
Wind 24 mph 5 mph 0 mph
Gust Wind 32 mph 19 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.08 in 29.88 in 29.66 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 20, 2013 Rise Set
Actual Time 6:57 AM PDT 7:10 PM PDT
Civil Twilight 6:31 AM PDT 7:37 PM PDT
Nautical Twilight 5:59 AM PDT 8:08 PM PDT
Astronomical Twilight 5:28 AM PDT 8:39 PM PDT
Moon 7:49 PM PDT (9/20) 8:16 AM PDT (9/20)
Length of Visible Light 13h 06m
Length of Day
12h 13m
Full, 98% of the Moon is Illuminated
Sep 20
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter
Oct 18
Full

Weather History Calendar

Precipitation Actual month total 0.49 Normal Month Total: 0.35
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Fog
Actual:
84 | 54 0.00
Average:
84 | 51 0.01
Scattered Clouds
Actual:
83 | 54 0.00
Average:
84 | 51 0.00
Fog
Actual:
82 | 49 0.00
Average:
84 | 51 0.01
Fog
Actual:
85 | 49 0.00
Average:
84 | 51 0.00
Clear
Actual:
86 | 49 0.00
Average:
84 | 51 0.01
Clear
Actual:
94 | 49 0.00
Average:
84 | 50 0.00
Clear
Actual:
96 | 50 0.00
Average:
84 | 50 0.01
Fog
Actual:
92 | 51 0.00
Average:
84 | 50 0.01
Clear
Actual:
95 | 50 0.00
Average:
84 | 50 0.01
Mostly Cloudy
Actual:
71 | 56 0.00
Average:
84 | 50 0.00
Overcast
Actual:
69 | 62 0.00
Average:
84 | 50 0.01
Partly Cloudy
Actual:
82 | 56 0.00
Average:
84 | 50 0.01
Fog
Actual:
83 | 53 0.00
Average:
84 | 50 0.01
Partly Cloudy
Actual:
82 | 49 0.00
Average:
84 | 50 0.01
Fog
Actual:
81 | 49 0.00
Average:
84 | 50 0.00
Fog
Actual:
87 | 51 0.01
Average:
84 | 49 0.01
Fog
Actual:
82 | 48 0.00
Average:
83 | 49 0.01
Clear
Actual:
85 | 54 0.00
Average:
83 | 49 0.00
Clear
Actual:
89 | 45 0.00
Average:
83 | 49 0.01
Rain
Actual:
78 | 41 0.16
Average:
83 | 49 0.00
Rain
Actual:
71 | 51 0.24
Average:
83 | 49 0.02
Fog
Actual:
78 | 45 0.00
Average:
83 | 49 0.01
Clear
Actual:
85 | 49 0.00
Average:
82 | 48 0.01
Scattered Clouds
Actual:
81 | 53 0.00
Average:
82 | 48 0.01
Clear
Actual:
74 | 46 0.00
Average:
82 | 48 0.01
Clear
Actual:
79 | 47 0.00
Average:
82 | 48 0.02
Clear
Actual:
81 | 43 0.00
Average:
82 | 48 0.02
Scattered Clouds
Actual:
82 | 43 0.00
Average:
81 | 48 0.02
Rain
Actual:
71 | 52 0.01
Average:
81 | 48 0.05
Rain
Actual:
73 | 52 0.07
Average:
81 | 47 0.05
 

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
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 84 69 54 59 55 53 100 69 37 29.94 29.90 29.83 10 7 0 14 4 18 0.00 Fog
2 83 69 54 60 58 53 93 70 46 29.92 29.88 29.84 10 10 10 15 4 21 0.00  
3 82 66 49 57 53 48 100 67 33 29.96 29.93 29.87 10 6 0 14 4 17 0.00 Fog
4 85 67 49 56 53 48 100 67 34 30.00 29.95 29.88 10 7 0 13 3 17 0.00 Fog
5 86 68 49 54 50 44 96 61 25 29.97 29.93 29.89 10 10 8 17 5 24 0.00  
6 94 72 49 52 48 42 89 53 17 29.95 29.89 29.80 10 10 10 13 4 17 0.00  
7 96 73 50 51 46 35 83 48 13 29.85 29.81 29.77 10 10 10 14 4 18 0.00  
8 92 72 51 54 52 47 100 61 21 29.88 29.81 29.73 10 7 0 13 4 15 0.00 Fog
9 95 73 50 56 52 48 93 61 28 29.79 29.73 29.66 10 10 10 16 5 20 0.00  
10 71 64 56 61 57 54 100 83 66 29.90 29.81 29.72 10 8 2 17 5 23 0.00  
11 69 66 62 61 59 57 93 80 66 29.99 29.94 29.88 10 8 5 10 3 16 0.00  
12 82 69 56 60 58 55 93 72 50 29.97 29.91 29.84 10 9 5 14 5 16 0.00  
13 83 68 53 57 55 53 100 70 39 29.90 29.84 29.72 10 5 0 15 4 20 0.00 Fog
14 82 66 49 56 54 50 96 69 42 29.81 29.75 29.68 10 8 2 14 4 20 0.00  
15 81 65 49 57 54 48 100 71 42 29.84 29.79 29.75 10 6 0 14 4 18 0.00 Fog
16 87 69 51 57 54 51 100 65 30 29.89 29.83 29.72 10 5 0 14 4 17 0.01 Fog
17 82 65 48 53 49 46 96 63 30 29.86 29.81 29.78 10 10 8 23 11 32 0.00 Fog
18 85 70 54 48 45 35 72 45 18 29.89 29.84 29.78 10 10 10 17 7 22 0.00  
19 89 67 45 50 44 36 93 55 16 29.84 29.78 29.72 10 10 10 13 4 16 0.00  
20 78 60 41 63 52 39 100 73 46 29.82 29.79 29.75 10 8 1 18 5 23 0.16 Fog , Rain
21 71 61 51 63 57 50 97 75 53 29.87 29.79 29.76 10 8 2 17 5 24 0.24 Rain
22 78 62 45 52 48 43 100 65 29 29.98 29.93 29.88 10 6 0 15 4 20 0.00 Fog
23 85 67 49 57 54 48 96 67 37 30.00 29.94 29.88 10 10 10 14 3 18 0.00  
24 81 67 53 54 49 45 93 62 30 29.95 29.91 29.86 10 10 10 21 9 28 0.00  
25 74 60 46 47 42 36 93 59 25 29.92 29.86 29.79 10 10 10 24 11 30 0.00  
26 79 63 47 43 38 29 71 45 18 29.98 29.89 29.83 10 10 10 18 8 23 0.00  
27 81 62 43 44 38 28 89 53 16 30.07 30.02 29.99 10 10 10 16 5 20 0.00  
28 82 63 43 53 43 28 89 52 15 30.07 30.03 29.98 10 10 10 16 4 20 0.00  
29 71 62 52 63 58 51 93 82 70 30.08 30.05 30.02 10 8 2 12 5 16 0.01 Rain
30 73 63 52 64 60 47 93 83 72 30.04 30.01 29.95 10 8 3 13 4 16 0.07 Rain