Petaluma, CA

7:16 PM PST on November 17, 2019 (GMT -0800)
Petaluma

Weather History for KO69 - September, 2019

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Wednesday, September 18, 2019

  Actual Average (KAPC) Record (KAPC)
Temperature  
Mean Temperature 66 °F -  
Max Temperature 75 °F 80 °F 98 °F (2016)
Min Temperature 57 °F 53 °F 38 °F (2008)
Cooling Degree Days 1    
Growing Degree Days 16 (Base 50)    
Moisture  
Dew Point 59 °F    
Average Humidity 83    
Maximum Humidity 100    
Minimum Humidity 47    
Precipitation  
Precipitation 0.01 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.95 in    
Wind  
Wind Speed 4 mph ()    
Max Wind Speed 18 mph    
Max Gust Speed 25 mph    
Visibility 6.9 miles    
Events      
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: Averaged Metar Reports

Daily Weather History Graph

Daily Weather History Graph

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Astronomy

Sep. 18, 2019 Rise Set
Actual Time 6:54 AM PDT 7:13 PM PDT
Civil Twilight 6:28 AM PDT 7:40 PM PDT
Nautical Twilight 5:57 AM PDT 8:11 PM PDT
Astronomical Twilight 5:25 AM PDT 8:42 PM PDT
Moon 9:54 PM PDT 10:59 AM PDT
Length of Visible Light 13h 12m
Length of Day
12h 19m
Waning Gibbous, 82% of the Moon is Illuminated
Sep 18
Waning Gibbous
Sep 21
Last Quarter
Sep 28
New
Oct 5
First Quarter
Oct 13
Full

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 59.0 °F 59.0 °F 100% 29.97 in 7.0 mi Calm Calm - N/A   Scattered Clouds
12:35 AM 57.2 °F 57.2 °F 100% 29.97 in 7.0 mi NW 3.5 mph - N/A   Scattered Clouds
12:55 AM 57.2 °F 57.2 °F 100% 29.97 in 6.0 mi NNW 3.5 mph - N/A   Mist
1:15 AM 59.0 °F 59.0 °F 100% 29.97 in 6.0 mi Calm Calm - N/A   Scattered Clouds
1:35 AM 59.0 °F 59.0 °F 100% 29.97 in 7.0 mi Calm Calm - N/A   Mostly Cloudy
1:55 AM 59.0 °F 59.0 °F 100% 29.96 in 7.0 mi West 3.5 mph - N/A   Overcast
2:15 AM 60.8 °F 60.8 °F 100% 29.96 in 7.0 mi Calm Calm - N/A   Overcast
2:35 AM 60.8 °F 60.8 °F 100% 29.96 in 6.0 mi Calm Calm - N/A   Mist
2:55 AM 60.8 °F 60.8 °F 100% 29.95 in 6.0 mi Calm Calm - N/A   Overcast
3:15 AM 60.8 °F 60.8 °F 100% 29.95 in 6.0 mi Calm Calm - N/A   Overcast
3:35 AM 60.8 °F 60.8 °F 100% 29.94 in 6.0 mi Calm Calm - N/A   Overcast
3:55 AM 62.6 °F 62.6 °F 100% 29.94 in 6.0 mi Calm Calm - N/A   Overcast
4:15 AM 62.6 °F 62.6 °F 100% 29.93 in 6.0 mi Calm Calm - N/A   Overcast
4:35 AM 62.6 °F 62.6 °F 100% 29.93 in 6.0 mi Calm Calm - N/A   Overcast
4:55 AM 62.6 °F 62.6 °F 100% 29.92 in 6.0 mi Calm Calm - N/A   Overcast
5:15 AM 62.6 °F 62.6 °F 100% 29.92 in 3.0 mi Calm Calm - N/A   Overcast
5:35 AM 62.6 °F 62.6 °F 100% 29.92 in 2.0 mi Calm Calm - N/A   Overcast
5:55 AM 60.8 °F 60.8 °F 100% 29.93 in 1.0 mi Calm Calm - N/A   Overcast
6:15 AM 60.8 °F 60.8 °F 100% 29.92 in 1.5 mi Calm Calm - N/A   Overcast
6:35 AM 62.6 °F 62.6 °F 100% 29.93 in 4.0 mi Calm Calm - N/A   Mist
6:55 AM 62.6 °F 62.6 °F 100% 29.93 in 4.0 mi Calm Calm - 0.01 in   Overcast
7:15 AM 62.6 °F 62.6 °F 100% 29.94 in 2.5 mi Calm Calm - N/A   Overcast
7:35 AM 62.6 °F 62.6 °F 100% 29.94 in 4.0 mi Calm Calm - N/A   Overcast
7:55 AM 62.6 °F 62.6 °F 100% 29.95 in 6.0 mi Calm Calm - N/A   Overcast
8:15 AM 64.4 °F 64.4 °F 100% 29.95 in 6.0 mi Calm Calm - N/A   Overcast
8:35 AM 64.4 °F 64.4 °F 100% 29.95 in 6.0 mi Calm Calm - N/A   Mostly Cloudy
8:55 AM 66.2 °F 66.2 °F 100% 29.96 in 7.0 mi Calm Calm - N/A   Overcast
9:15 AM 66.2 °F 66.2 °F 100% 29.96 in 7.0 mi Variable 3.5 mph - N/A   Overcast
9:35 AM 66.2 °F 66.2 °F 100% 29.96 in 8.0 mi West 4.6 mph - N/A   Mostly Cloudy
9:55 AM 68.0 °F 66.2 °F 94% 29.97 in 8.0 mi Variable 4.6 mph - N/A   Overcast
10:15 AM 68.0 °F 64.4 °F 88% 29.97 in 8.0 mi Variable 6.9 mph - N/A   Mostly Cloudy
10:35 AM 68.0 °F 64.4 °F 88% 29.97 in 7.0 mi NNW 5.8 mph 11.5 mph N/A   Mostly Cloudy
10:55 AM 69.8 °F 64.4 °F 83% 29.97 in 7.0 mi Variable 4.6 mph - N/A   Mostly Cloudy
11:15 AM 69.8 °F 64.4 °F 83% 29.97 in 8.0 mi NW 8.1 mph - N/A   Mostly Cloudy
11:35 AM 71.6 °F 60.8 °F 69% 29.97 in 8.0 mi NW 6.9 mph 13.8 mph N/A   Mostly Cloudy
11:55 AM 71.6 °F 62.6 °F 73% 29.97 in 9.0 mi WNW 8.1 mph 13.8 mph N/A   Overcast
12:15 PM 71.6 °F 60.8 °F 69% 29.97 in 8.0 mi WNW 10.4 mph 17.3 mph N/A   Mostly Cloudy
12:35 PM 71.6 °F 57.2 °F 60% 29.97 in 9.0 mi WNW 6.9 mph 13.8 mph N/A   Mostly Cloudy
12:55 PM 73.4 °F 55.4 °F 53% 29.96 in 9.0 mi West 8.1 mph 13.8 mph N/A   Mostly Cloudy
1:15 PM 73.4 °F 55.4 °F 53% 29.96 in 8.0 mi West 10.4 mph - N/A   Mostly Cloudy
1:35 PM 75.2 °F 53.6 °F 47% 29.95 in 8.0 mi WSW 13.8 mph - N/A   Mostly Cloudy
1:55 PM 73.4 °F 53.6 °F 50% 29.95 in 9.0 mi West 13.8 mph 23.0 mph N/A   Scattered Clouds
2:15 PM 75.2 °F 55.4 °F 50% 29.95 in 8.0 mi West 15.0 mph - N/A   Mostly Cloudy
2:35 PM 75.2 °F 53.6 °F 47% 29.95 in 8.0 mi WSW 13.8 mph - N/A   Mostly Cloudy
2:55 PM 73.4 °F 53.6 °F 50% 29.94 in 9.0 mi WSW 13.8 mph 21.9 mph N/A   Partly Cloudy
3:15 PM 73.4 °F 55.4 °F 53% 29.94 in 8.0 mi West 16.1 mph 25.3 mph N/A   Partly Cloudy
3:35 PM 73.4 °F 53.6 °F 50% 29.94 in 8.0 mi West 15.0 mph - N/A   Partly Cloudy
3:55 PM 73.4 °F 53.6 °F 50% 29.94 in 8.0 mi West 17.3 mph 23.0 mph N/A   Partly Cloudy
4:15 PM 71.6 °F 53.6 °F 53% 29.94 in 9.0 mi West 15.0 mph 24.2 mph N/A   Clear
4:35 PM 71.6 °F 51.8 °F 50% 29.94 in 8.0 mi West 18.4 mph - N/A   Scattered Clouds
4:55 PM 71.6 °F 51.8 °F 50% 29.94 in 9.0 mi WSW 13.8 mph 21.9 mph N/A   Mostly Cloudy
5:15 PM 71.6 °F 51.8 °F 50% 29.94 in 9.0 mi WSW 11.5 mph 23.0 mph N/A   Mostly Cloudy
5:35 PM 69.8 °F 53.6 °F 56% 29.93 in 8.0 mi WSW 15.0 mph 20.7 mph N/A   Partly Cloudy
5:55 PM 69.8 °F 53.6 °F 56% 29.93 in 8.0 mi West 12.7 mph 19.6 mph N/A   Clear
6:15 PM 68.0 °F 53.6 °F 60% 29.93 in 8.0 mi West 12.7 mph - N/A   Clear
6:35 PM 68.0 °F 53.6 °F 60% 29.93 in 9.0 mi West 10.4 mph 18.4 mph N/A   Clear
6:55 PM 66.2 °F 53.6 °F 64% 29.93 in 8.0 mi West 8.1 mph 15.0 mph N/A   Clear
7:15 PM 64.4 °F 55.4 °F 73% 29.93 in 7.0 mi West 9.2 mph - N/A   Clear
7:35 PM 64.4 °F 57.2 °F 77% 29.93 in 9.0 mi West 9.2 mph - N/A   Partly Cloudy
7:55 PM 64.4 °F 57.2 °F 77% 29.93 in 9.0 mi West 9.2 mph - N/A   Partly Cloudy
8:15 PM 62.6 °F 57.2 °F 82% 29.94 in 9.0 mi West 6.9 mph - N/A   Clear
8:35 PM 62.6 °F 57.2 °F 82% 29.95 in 8.0 mi West 8.1 mph - N/A   Clear
8:55 PM 62.6 °F 59.0 °F 88% 29.94 in 8.0 mi West 8.1 mph - N/A   Clear
9:15 PM 60.8 °F 59.0 °F 94% 29.94 in 6.0 mi West 9.2 mph - N/A   Clear
9:35 PM 60.8 °F 59.0 °F 94% 29.94 in 5.0 mi West 8.1 mph - N/A   Clear
9:55 PM 59.0 °F 59.0 °F 100% 29.95 in 6.0 mi Calm Calm - N/A   Clear
10:15 PM 59.0 °F 57.2 °F 94% 29.94 in 6.0 mi WNW 6.9 mph - N/A   Clear
10:35 PM 59.0 °F 57.2 °F 94% 29.95 in 7.0 mi WNW 4.6 mph - N/A   Clear
10:50 PM 57.2 °F 57.2 °F 100% 29.94 in 6.0 mi Calm Calm - N/A   Clear
11:15 PM 57.2 °F 57.2 °F 100% 29.94 in 7.0 mi West 5.8 mph - N/A   Clear
11:35 PM 57.2 °F 55.4 °F 94% 29.95 in 7.0 mi Calm Calm - N/A   Clear
11:55 PM 57.2 °F 57.2 °F 100% 29.95 in 7.0 mi WNW 6.9 mph - N/A   Clear