Weather History for Petaluma, CA

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Month of October, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 100 °F 74 °F 57 °F
Mean Temperature 75 °F 61 °F 52 °F
Min Temperature 55 °F 48 °F 41 °F
Degree Days  
Heating Degree Days (base 65) 13 5 0 149
Cooling Degree Days (base 65) 10 1 0 32
Growing Degree Days (base 50) 25 11 2 349
Dew Point  
Dew Point 64 °F 50 °F 32 °F
Precipitation  
Precipitation 0.55 in 0.02 in 0.00 in 0.72 in
Snowdepth - - - -
Wind  
Wind 17 mph 4 mph 0 mph
Gust Wind 25 mph 18 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.33 in 30.02 in 29.79 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Oct. 26, 2012 Rise Set
Actual Time 7:30 AM PDT 6:17 PM PDT
Civil Twilight 7:03 AM PDT 6:44 PM PDT
Nautical Twilight 6:32 AM PDT 7:15 PM PDT
Astronomical Twilight 6:02 AM PDT 7:45 PM PDT
Moon 4:34 PM PDT (10/26) 4:34 AM PDT (10/26)
Length of Visible Light 11h 40m
Length of Day
10h 46m
Waxing Gibbous, 91% of the Moon is Illuminated
Oct 26
Waxing Gibbous
Oct 29
Full
Nov 6
Last Quarter
Nov 13
New
Nov 20
First Quarter

Weather History Calendar

 
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Scattered Clouds
Actual:
98 | 48 0.00
Average:
- | - -
Clear
Actual:
100 | 50 0.00
Average:
- | - -
Scattered Clouds
Actual:
91 | 51 0.00
Average:
- | - -
Partly Cloudy
Actual:
69 | 55 0.00
Average:
- | - -
Partly Cloudy
Actual:
73 | 53 0.00
Average:
- | - -
Partly Cloudy
Actual:
71 | 50 0.00
Average:
- | - -
Partly Cloudy
Actual:
73 | 50 0.00
Average:
- | - -
Scattered Clouds
Actual:
68 | 44 0.00
Average:
- | - -
Partly Cloudy
Actual:
71 | 46 0.00
Average:
- | - -
Partly Cloudy
Actual:
71 | 48 0.00
Average:
- | - -
Overcast
Actual:
57 | 53 0.00
Average:
- | - -
Overcast
Actual:
62 | 48 0.00
Average:
- | - -
Partly Cloudy
Actual:
75 | 42 0.00
Average:
- | - -
Partly Cloudy
Actual:
75 | 53 0.00
Average:
- | - -
Partly Cloudy
Actual:
82 | 50 0.00
Average:
- | - -
Clear
Actual:
80 | 53 0.00
Average:
- | - -
Clear
Actual:
91 | 46 0.00
Average:
- | - -
Clear
Actual:
86 | 46 0.00
Average:
- | - -
Partly Cloudy
Actual:
75 | 53 0.00
Average:
- | - -
Partly Cloudy
Actual:
73 | 46 0.00
Average:
- | - -
Scattered Clouds
Actual:
64 | 41 0.00
Average:
- | - -
Partly Cloudy
Actual:
62 | 48 0.12
Average:
- | - -
Partly Cloudy
Actual:
60 | 44 0.00
Average:
- | - -
Partly Cloudy
Actual:
66 | 48 0.02
Average:
- | - -
Partly Cloudy
Actual:
66 | 46 0.03
Average:
- | - -
Clear
Actual:
75 | 41 0.00
Average:
- | - -
Clear
Actual:
80 | 48 0.00
Average:
- | - -
Scattered Clouds
Actual:
78 | 48 0.00
Average:
- | - -
Partly Cloudy
Actual:
77 | 46 0.00
Average:
- | - -
Partly Cloudy
Actual:
68 | 46 0.00
Average:
- | - -
Overcast
Actual:
60 | 55 0.55
Average:
- | - -
 

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

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Oct high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 98 73 48 46 43 32 93 49 12 30.02 29.96 29.89 10 10 7 13 2 17 0.00  
2 100 75 50 46 42 36 82 43 13 29.90 29.85 29.79 10 8 5 14 2 - 0.00  
3 91 71 51 55 50 41 94 61 23 30.02 29.89 29.81 10 8 3 14 4 20 0.00  
4 69 62 55 55 53 50 94 78 52 30.15 30.09 30.02 10 10 5 14 7 20 0.00  
5 73 63 53 55 53 50 100 77 47 30.17 30.13 30.09 10 10 5 17 7 23 0.00  
6 71 60 50 57 51 46 100 82 41 30.09 30.04 30.00 10 6 0 15 5 20 0.00  
7 73 62 50 55 51 48 100 84 41 30.04 30.00 29.96 10 7 0 17 5 22 0.00  
8 68 56 44 55 50 45 100 81 52 30.06 30.03 30.01 10 10 4 15 5 23 0.00  
9 71 58 46 54 50 46 100 82 43 30.06 30.01 29.95 10 8 0 12 3 17 0.00  
10 71 60 48 54 51 48 100 81 43 29.99 29.95 29.89 10 8 0 16 5 20 0.00  
11 57 55 53 54 50 48 100 85 77 29.98 29.93 29.89 10 10 3 12 7 - 0.00  
12 62 56 48 52 50 48 100 81 59 30.24 30.10 29.98 10 10 7 7 2 - 0.00  
13 75 58 42 57 50 43 100 81 44 30.33 30.25 30.19 10 9 2 14 3 23 0.00  
14 75 64 53 57 56 54 100 88 53 30.24 30.17 30.09 10 6 0 14 4 - 0.00  
15 82 66 50 59 55 50 100 78 37 30.12 30.04 29.97 10 6 0 13 3 16 0.00  
16 80 68 53 64 59 52 100 78 54 30.01 29.95 29.88 10 10 5 17 7 23 0.00  
17 91 68 46 52 43 32 94 56 13 29.94 29.89 29.82 10 10 10 9 2 - 0.00  
18 86 66 46 59 47 37 100 59 25 30.04 29.96 29.90 10 10 3 13 3 21 0.00  
19 75 64 53 61 57 54 100 86 50 30.07 30.01 29.95 10 9 4 15 4 20 0.00  
20 73 60 46 57 51 43 100 81 44 29.95 29.87 29.80 10 6 0 16 5 25 0.00  
21 64 52 41 43 39 32 100 71 30 29.94 29.89 29.85 10 10 9 17 3 23 0.00  
22 62 55 48 54 47 43 100 76 48 29.94 29.87 29.79 10 10 2 17 7 23 0.12  
23 60 52 44 50 45 39 100 80 45 30.07 30.02 29.95 10 9 0 12 2 - 0.00  
24 66 57 48 54 48 41 100 78 43 30.22 30.12 30.03 10 10 6 13 3 21 0.02  
25 66 56 46 54 49 41 100 82 42 30.28 30.24 30.21 10 8 2 9 2 - 0.03  
26 75 58 41 55 46 37 100 73 29 30.26 30.18 30.11 10 10 10 13 2 16 0.00  
27 80 64 48 55 53 48 100 77 39 30.10 30.04 29.96 10 10 10 12 3 - 0.00  
28 78 63 48 57 54 48 100 84 44 30.04 30.00 29.96 10 8 0 12 2 16 0.00  
29 77 62 46 57 51 46 100 87 36 30.13 30.08 30.04 10 5 0 12 1 - 0.00  
30 68 57 46 57 52 46 100 95 64 30.10 30.05 29.99 10 5 0 13 2 - 0.00  
31 60 58 55 57 56 54 100 96 77 30.03 30.00 29.97 10 8 2 10 3 - 0.55