Petaluma, CA

5:22 AM PST on December 09, 2019 (GMT -0800)
Petaluma

Weather History for KO69 - September, 2019

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Week of September 15, 2019 through September 21, 2019

  Max Avg Min Sum
Temperature  
Max Temperature 89 °F 76 °F 57 °F
Mean Temperature 72 °F 65 °F 54 °F
Min Temperature 59 °F 53 °F 48 °F
Degree Days  
Heating Degree Days (base 65) 11 2 0 15
Cooling Degree Days (base 65) 8 2 0 13
Growing Degree Days (base 50) 22 15 4 119
Dew Point  
Dew Point 66 °F 54 °F 43 °F
Precipitation  
Precipitation 0.01 in 0.00 in 0.00 in 0.02 in
Snowdepth - - - -
Wind  
Wind 22 mph 4 mph 0 mph
Gust Wind 29 mph 20 mph 12 mph
Sea Level Pressure  
Sea Level Pressure 30.08 in 29.94 in 29.82 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Sep. 19, 2019 Rise Set
Actual Time 6:55 AM PDT 7:12 PM PDT
Civil Twilight 6:29 AM PDT 7:38 PM PDT
Nautical Twilight 5:58 AM PDT 8:09 PM PDT
Astronomical Twilight 5:26 AM PDT 8:41 PM PDT
Moon 10:29 PM PDT (9/19) 12:00 PM PDT (9/19)
Length of Visible Light 13h 09m
Length of Day
12h 16m
Waning Gibbous, 73% of the Moon is Illuminated
Sep 19
Waning Gibbous
Sep 21
Last Quarter
Sep 28
New
Oct 5
First Quarter
Oct 13
Full

Daily Weather History & Observations

2019 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  
15 77 65 53 64 58 54 100 85 44 29.90 29.87 29.82 9.0 7.1 2.5 22 4 29 0.00  
16 73 65 55 64 58 52 100 81 50 30.02 29.94 29.85 10.0 7.7 4.0 22 8 28 0.01  
17 78 63 48 63 53 43 100 77 29 30.08 30.03 29.98 9.0 7.8 6.0 20 6 28 0.00  
18 75 66 57 66 59 52 100 83 47 29.97 29.95 29.92 9.0 6.9 1.0 18 4 25 0.01  
19 77 64 50 57 53 48 100 83 36 29.98 29.96 29.94 8.0 6.9 5.0 8 4 - 0.00  
20 86 72 59 55 50 45 88 47 25 29.98 29.94 29.91 10.0 7.7 3.0 16 3 22 0.00  
21 89 70 50 55 50 43 100 63 21 29.99 29.93 29.89 9.0 6.4 4.0 17 3 23 0.00  
22 57 54 50 55 53 50 100 99 94 29.92 29.92 29.91 5.0 4.8 4.0 4 1 - 0.00