Petaluma, CA

11:34 AM PST on November 13, 2019 (GMT -0800)
Petaluma

Weather History for KO69 - September, 2019

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Wednesday, September 11, 2019

  Actual Average (KAPC) Record (KAPC)
Temperature  
Mean Temperature 68 °F -  
Max Temperature 86 °F 81 °F 98 °F (2017)
Min Temperature 50 °F 53 °F 40 °F (2005)
Cooling Degree Days 3    
Growing Degree Days 18 (Base 50)    
Moisture  
Dew Point 53 °F    
Average Humidity 70    
Maximum Humidity 100    
Minimum Humidity 27    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.02 in    
Wind  
Wind Speed 2 mph ()    
Max Wind Speed 15 mph    
Max Gust Speed 16 mph    
Visibility 9.6 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. 11, 2019 Rise Set
Actual Time 6:48 AM PDT 7:24 PM PDT
Civil Twilight 6:21 AM PDT 7:51 PM PDT
Nautical Twilight 5:50 AM PDT 8:22 PM PDT
Astronomical Twilight 5:18 AM PDT 8:54 PM PDT
Moon 6:37 PM PDT (9/11) 4:19 AM PDT (9/11)
Length of Visible Light 13h 29m
Length of Day
12h 36m
Waxing Gibbous, 95% of the Moon is Illuminated
Sep 11
Waxing Gibbous
Sep 13
Full
Sep 21
Last Quarter
Sep 28
New
Oct 5
First Quarter

Hourly Weather History & Observations

Time (PDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 59.0 °F - 57.2 °F 94% 29.95 in 10.0 mi Variable 4.6 mph - N/A   Clear
12:35 AM 57.2 °F - 55.4 °F 94% 29.96 in 10.0 mi Calm Calm - N/A   Clear
12:55 AM 57.2 °F - 55.4 °F 94% 29.96 in 10.0 mi Calm Calm - N/A   Clear
1:15 AM 57.2 °F - 55.4 °F 94% 29.96 in 10.0 mi North - - N/A   Unknown
1:35 AM 55.4 °F - 55.4 °F 100% 29.97 in 10.0 mi Calm Calm - N/A   Unknown
1:55 AM 53.6 °F - 53.6 °F 100% 29.97 in 10.0 mi Calm Calm - N/A   Unknown
2:15 AM 53.6 °F - 53.6 °F 100% 29.98 in 10.0 mi Calm Calm - N/A   Clear
2:35 AM 53.6 °F - 53.6 °F 100% 29.97 in 10.0 mi Calm Calm - N/A   Unknown
2:55 AM 53.6 °F - 53.6 °F 100% 29.97 in 10.0 mi Calm Calm - N/A   Unknown
3:15 AM 53.6 °F - 53.6 °F 100% 29.97 in 10.0 mi Calm Calm - N/A   Clear
3:35 AM 51.8 °F - 51.8 °F 100% 29.98 in 10.0 mi Calm Calm - N/A   Unknown
3:55 AM 51.8 °F - 51.8 °F 100% 29.98 in 10.0 mi Calm Calm - N/A   Clear
4:15 AM 51.8 °F - 51.8 °F 100% 29.98 in 10.0 mi Calm Calm - N/A   Clear
4:35 AM 51.8 °F - 51.8 °F 100% 29.99 in 10.0 mi Calm Calm - N/A   Clear
4:55 AM 51.8 °F - 51.8 °F 100% 30.00 in 10.0 mi Calm Calm - N/A   Unknown
5:15 AM 51.8 °F - 51.8 °F 100% 30.00 in 10.0 mi Calm Calm - N/A   Unknown
5:35 AM 51.8 °F - 51.8 °F 100% 30.00 in 10.0 mi Calm Calm - N/A   Clear
5:55 AM 51.8 °F - 51.8 °F 100% 30.00 in 10.0 mi Calm Calm - N/A   Unknown
6:15 AM 50.0 °F - 50.0 °F 100% 30.01 in 8.0 mi Calm Calm - N/A   Clear
6:35 AM 50.0 °F - 50.0 °F 100% 30.01 in 9.0 mi Calm Calm - N/A   Clear
6:55 AM 51.8 °F - 51.8 °F 100% 30.02 in 9.0 mi Calm Calm - N/A   Clear
7:15 AM 51.8 °F - 51.8 °F 100% 30.03 in 9.0 mi Calm Calm - N/A   Clear
7:35 AM 53.6 °F - 53.6 °F 100% 30.04 in 8.0 mi Calm Calm - N/A   Clear
7:55 AM 55.4 °F - 55.4 °F 100% 30.05 in 9.0 mi Calm Calm - N/A   Clear
8:15 AM 59.0 °F - 57.2 °F 94% 30.05 in 9.0 mi Calm Calm - N/A   Clear
8:35 AM 60.8 °F - 57.2 °F 88% 30.06 in 9.0 mi Calm Calm - N/A   Clear
8:55 AM 62.6 °F - 57.2 °F 82% 30.06 in 9.0 mi Calm Calm - N/A   Clear
9:15 AM 64.4 °F - 57.2 °F 77% 30.06 in 9.0 mi Calm Calm - N/A   Clear
9:35 AM 64.4 °F - 55.4 °F 73% 30.07 in 10.0 mi Calm Calm - N/A   Clear
9:55 AM 68.0 °F - 55.4 °F 64% 30.07 in 10.0 mi Calm Calm - N/A   Clear
10:15 AM 68.0 °F - 55.4 °F 64% 30.07 in 9.0 mi Calm Calm - N/A   Clear
10:35 AM 69.8 °F - 55.4 °F 60% 30.07 in 10.0 mi Calm Calm - N/A   Clear
10:55 AM 71.6 °F - 55.4 °F 57% 30.07 in 9.0 mi Calm Calm - N/A   Clear
11:15 AM 75.2 °F - 53.6 °F 47% 30.08 in 9.0 mi Calm Calm - N/A   Clear
11:35 AM 75.2 °F - 55.4 °F 50% 30.07 in 10.0 mi Calm Calm - N/A   Clear
11:55 AM 77.0 °F - 57.2 °F 50% 30.07 in 9.0 mi ENE 4.6 mph - N/A   Clear
12:15 PM 78.8 °F - 55.4 °F 44% 30.07 in 10.0 mi Variable 4.6 mph - N/A   Clear
12:35 PM 80.6 °F 80.5 °F 55.4 °F 42% 30.06 in 9.0 mi Calm Calm - N/A   Clear
12:55 PM 80.6 °F 80.5 °F 55.4 °F 42% 30.06 in 8.0 mi Calm Calm - N/A   Clear
1:15 PM 82.4 °F 81.4 °F 53.6 °F 37% 30.05 in 10.0 mi Variable 3.5 mph - N/A   Clear
1:35 PM 82.4 °F - 51.8 °F 35% 30.05 in 10.0 mi South 6.9 mph - N/A   Clear
1:55 PM 82.4 °F - 51.8 °F 35% 30.04 in 10.0 mi East 3.5 mph - N/A   Clear
2:15 PM 84.2 °F - 50.0 °F 30% 30.03 in 9.0 mi Calm Calm - N/A   Clear
2:35 PM 86.0 °F - 48.2 °F 27% 30.03 in 9.0 mi Variable 5.8 mph - N/A   Clear
2:55 PM 84.2 °F 83.0 °F 55.4 °F 37% 30.02 in 10.0 mi West 13.8 mph - N/A   Clear
3:15 PM 82.4 °F 81.4 °F 53.6 °F 37% 30.02 in 10.0 mi West 15.0 mph - N/A   Clear
3:35 PM 80.6 °F 80.3 °F 53.6 °F 39% 30.03 in 10.0 mi West 13.8 mph - N/A   Clear
3:55 PM 80.6 °F 80.5 °F 55.4 °F 42% 30.03 in 10.0 mi West 10.4 mph - N/A   Clear
4:15 PM 80.6 °F 80.3 °F 53.6 °F 39% 30.02 in 10.0 mi West 10.4 mph - N/A   Clear
4:35 PM 80.6 °F 80.3 °F 53.6 °F 39% 30.03 in 9.0 mi West 9.2 mph 16.1 mph N/A   Clear
4:55 PM 80.6 °F - 51.8 °F 37% 30.03 in 10.0 mi West 11.5 mph - N/A   Clear
5:15 PM 78.8 °F - 51.8 °F 39% 30.02 in 9.0 mi West 11.5 mph - N/A   Clear
5:35 PM 78.8 °F - 53.6 °F 42% 30.03 in 10.0 mi WNW 8.1 mph - N/A   Clear
5:55 PM 77.0 °F - 51.8 °F 41% 30.02 in 9.0 mi WNW 10.4 mph - N/A   Clear
6:15 PM 77.0 °F - 51.8 °F 41% 30.02 in 10.0 mi West 9.2 mph - N/A   Clear
6:35 PM 77.0 °F - 51.8 °F 41% 30.01 in 10.0 mi West 11.5 mph - N/A   Clear
6:55 PM 75.2 °F - 51.8 °F 44% 30.01 in 10.0 mi West 5.8 mph - N/A   Clear
7:15 PM 73.4 °F - 51.8 °F 47% 30.01 in 10.0 mi West 5.8 mph - N/A   Clear
7:35 PM 71.6 °F - 51.8 °F 50% 30.00 in 8.0 mi WNW 4.6 mph - N/A   Clear
7:55 PM 69.8 °F - 51.8 °F 53% 30.01 in 10.0 mi Variable 3.5 mph - N/A   Unknown
8:15 PM 66.2 °F - 51.8 °F 60% 30.01 in 10.0 mi North - - N/A   Unknown
8:35 PM 66.2 °F - 51.8 °F 60% 30.00 in 10.0 mi Calm Calm - N/A   Unknown
8:55 PM 64.4 °F - 51.8 °F 64% 30.00 in 10.0 mi Calm Calm - N/A   Unknown
9:35 PM 62.6 °F - 53.6 °F 72% 30.01 in 10.0 mi Calm Calm - N/A   Unknown
9:55 PM 60.8 °F - 53.6 °F 77% 30.00 in 10.0 mi Calm Calm - N/A   Unknown
10:15 PM 62.6 °F - 53.6 °F 72% 30.00 in 10.0 mi Calm Calm - N/A   Clear
10:35 PM 59.0 °F - 53.6 °F 82% 30.00 in 10.0 mi Calm Calm - N/A   Unknown
10:55 PM 59.0 °F - 53.6 °F 82% 30.00 in 10.0 mi NNW 3.5 mph - N/A   Unknown
11:15 PM 59.0 °F - 53.6 °F 82% 30.00 in 10.0 mi Calm Calm - N/A   Unknown
11:35 PM 59.0 °F - 53.6 °F 82% 30.00 in 10.0 mi Calm Calm - N/A   Unknown
11:55 PM 55.4 °F - 51.8 °F 88% 30.00 in 10.0 mi Calm Calm - N/A   Partly Cloudy