Petaluma, CA

4:12 AM PDT on September 19, 2019 (GMT -0700)
Petaluma

Weather History for KO69 - August, 2019

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Sunday, August 18, 2019

  Actual Average (WUND) Record (WUND)
Temperature  
Mean Temperature 66 °F -  
Max Temperature 80 °F - - (-1)
Min Temperature 53 °F - - (-1)
Cooling Degree Days 2    
Growing Degree Days 16 (Base 50)    
Moisture  
Dew Point 57 °F    
Average Humidity 82    
Maximum Humidity 100    
Minimum Humidity 45    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.87 in    
Wind  
Wind Speed 4 mph (NW)    
Max Wind Speed 12 mph    
Max Gust Speed 15 mph    
Visibility 8 miles    
Events      
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Astronomy

Aug. 18, 2019 Rise Set
Actual Time 6:27 AM PDT 8:00 PM PDT
Civil Twilight 5:59 AM PDT 8:28 PM PDT
Nautical Twilight 5:26 AM PDT 9:01 PM PDT
Astronomical Twilight 4:50 AM PDT 9:37 PM PDT
Moon 9:59 PM PDT (8/18) 9:15 AM PDT (8/18)
Length of Visible Light 14h 28m
Length of Day
13h 32m
Waning Gibbous, 91% of the Moon is Illuminated
Aug 18
Waning Gibbous
Aug 23
Last Quarter
Aug 30
New
Sep 5
First Quarter
Sep 13
Full

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 55.4 °F - 55.4 °F 100% 29.83 in 6.0 mi WNW 3.5 mph - N/A   Mostly Cloudy
12:35 AM 55.4 °F - 55.4 °F 100% 29.83 in 6.0 mi WNW 3.5 mph - N/A   Scattered Clouds
12:55 AM 55.4 °F - 55.4 °F 100% 29.83 in 6.0 mi Variable 3.5 mph - N/A   Scattered Clouds
1:15 AM 55.4 °F - 55.4 °F 100% 29.83 in 6.0 mi Variable 3.5 mph - N/A   Mist
1:35 AM 55.4 °F - 55.4 °F 100% 29.83 in 6.0 mi WNW 4.6 mph - N/A   Mist
1:55 AM 55.4 °F - 55.4 °F 100% 29.83 in 6.0 mi NW 3.5 mph - N/A   Partly Cloudy
2:15 AM 55.4 °F - 55.4 °F 100% 29.83 in 6.0 mi WNW 3.5 mph - N/A   Mist
2:35 AM 55.4 °F - 55.4 °F 100% 29.83 in 6.0 mi Calm Calm - N/A   Mist
2:55 AM 55.4 °F - 55.4 °F 100% 29.83 in 6.0 mi Calm Calm - N/A   Mist
3:15 AM 53.6 °F - 53.6 °F 100% 29.83 in 6.0 mi West 4.6 mph - N/A   Mist
3:35 AM 55.4 °F - 55.4 °F 100% 29.83 in 6.0 mi Calm Calm - N/A   Mist
3:55 AM 53.6 °F - 53.6 °F 100% 29.83 in 6.0 mi WNW 4.6 mph - N/A   Scattered Clouds
4:15 AM 55.4 °F - 55.4 °F 100% 29.83 in 6.0 mi Calm Calm - N/A   Mostly Cloudy
4:35 AM 57.2 °F - 57.2 °F 100% 29.83 in 6.0 mi NNW 4.6 mph - N/A   Overcast
4:55 AM 57.2 °F - 57.2 °F 100% 29.84 in 7.0 mi NNW 4.6 mph - N/A   Unknown
5:15 AM 57.2 °F - 57.2 °F 100% 29.84 in 7.0 mi NNW 5.8 mph - N/A   Overcast
5:35 AM 57.2 °F - 57.2 °F 100% 29.84 in 7.0 mi NNW 5.8 mph - N/A   Overcast
5:55 AM 59.0 °F - 57.2 °F 94% 29.84 in 7.0 mi North 6.9 mph - N/A   Overcast
6:15 AM 59.0 °F - 57.2 °F 94% 29.84 in 7.0 mi NNW 5.8 mph - N/A   Overcast
6:35 AM 59.0 °F - 57.2 °F 94% 29.85 in 6.0 mi North 5.8 mph - N/A   Overcast
6:55 AM 59.0 °F - 57.2 °F 94% 29.85 in 4.0 mi North 5.8 mph - N/A   Overcast
7:15 AM 59.0 °F - 57.2 °F 94% 29.86 in 6.0 mi North 6.9 mph - N/A   Overcast
7:35 AM 59.0 °F - 57.2 °F 94% 29.86 in 6.0 mi North 4.6 mph - N/A   Overcast
7:55 AM 59.0 °F - 59.0 °F 100% 29.86 in 7.0 mi North 5.8 mph - N/A   Overcast
8:15 AM 60.8 °F - 59.0 °F 94% 29.87 in 6.0 mi Calm Calm - N/A   Overcast
8:35 AM 60.8 °F - 59.0 °F 94% 29.87 in 6.0 mi Calm Calm - N/A   Overcast
8:55 AM 60.8 °F - 59.0 °F 94% 29.88 in 6.0 mi WNW 3.5 mph - N/A   Overcast
9:15 AM 60.8 °F - 57.2 °F 88% 29.88 in 7.0 mi Calm Calm - N/A   Overcast
9:35 AM 62.6 °F - 57.2 °F 82% 29.89 in 7.0 mi WNW 4.6 mph - N/A   Overcast
9:55 AM 62.6 °F - 57.2 °F 82% 29.89 in 7.0 mi West 4.6 mph - N/A   Overcast
10:15 AM 62.6 °F - 57.2 °F 82% 29.90 in 8.0 mi Calm Calm - N/A   Overcast
10:35 AM 64.4 °F - 57.2 °F 77% 29.90 in 8.0 mi Calm Calm - N/A   Overcast
10:55 AM 64.4 °F - 57.2 °F 77% 29.90 in 8.0 mi West 4.6 mph - N/A   Overcast
11:15 AM 66.2 °F - 57.2 °F 73% 29.91 in 8.0 mi Calm Calm - N/A   Overcast
11:35 AM 68.0 °F - 57.2 °F 68% 29.90 in 9.0 mi Calm Calm - N/A   Mostly Cloudy
11:55 AM 69.8 °F - 59.0 °F 68% 29.90 in 8.0 mi Variable 4.6 mph - N/A   Partly Cloudy
12:15 PM 69.8 °F - 57.2 °F 64% 29.90 in 8.0 mi Variable 3.5 mph - N/A   Clear
12:35 PM 71.6 °F - 57.2 °F 60% 29.89 in 9.0 mi Calm Calm - N/A   Clear
12:55 PM 71.6 °F - 57.2 °F 60% 29.89 in 9.0 mi Variable 4.6 mph - N/A   Clear
1:15 PM 73.4 °F - 57.2 °F 57% 29.88 in 8.0 mi Calm Calm - N/A   Clear
1:35 PM 77.0 °F - 57.2 °F 50% 29.88 in 9.0 mi Variable 4.6 mph - N/A   Clear
1:55 PM 77.0 °F - 59.0 °F 54% 29.87 in 8.0 mi Calm Calm - N/A   Clear
2:15 PM 78.8 °F - 59.0 °F 51% 29.87 in 8.0 mi Variable 4.6 mph - N/A   Clear
2:35 PM 78.8 °F - 59.0 °F 51% 29.86 in 9.0 mi North 4.6 mph - N/A   Clear
2:55 PM 80.6 °F 81.1 °F 59.0 °F 48% 29.85 in 9.0 mi Variable 5.8 mph - N/A   Clear
3:15 PM 80.6 °F 80.8 °F 57.2 °F 45% 29.85 in 8.0 mi Variable 6.9 mph - N/A   Clear
3:35 PM 80.6 °F 81.1 °F 59.0 °F 48% 29.85 in 9.0 mi Variable 6.9 mph - N/A   Clear
3:55 PM 78.8 °F - 59.0 °F 51% 29.85 in 9.0 mi NW 6.9 mph - N/A   Clear
4:15 PM 78.8 °F - 59.0 °F 51% 29.84 in 9.0 mi NW 5.8 mph 12.7 mph N/A   Clear
4:35 PM 77.0 °F - 59.0 °F 54% 29.85 in 9.0 mi WNW 8.1 mph 15.0 mph N/A   Clear
4:55 PM 77.0 °F - 59.0 °F 54% 29.86 in 10.0 mi WNW 9.2 mph - N/A   Clear
5:15 PM 75.2 °F - 59.0 °F 57% 29.86 in 10.0 mi WNW 11.5 mph - N/A   Clear
5:35 PM 73.4 °F - 59.0 °F 61% 29.86 in 10.0 mi Variable 5.8 mph - N/A   Clear
5:55 PM 73.4 °F - 59.0 °F 61% 29.86 in 9.0 mi Variable 5.8 mph 12.7 mph N/A   Clear
6:15 PM 71.6 °F - 59.0 °F 64% 29.86 in 10.0 mi Variable 5.8 mph - N/A   Clear
6:35 PM 69.8 °F - 57.2 °F 64% 29.86 in 9.0 mi WNW 8.1 mph 15.0 mph N/A   Clear
6:55 PM 68.0 °F - 57.2 °F 68% 29.86 in 9.0 mi WNW 8.1 mph 15.0 mph N/A   Clear
7:15 PM 66.2 °F - 57.2 °F 73% 29.86 in 9.0 mi Variable 6.9 mph 13.8 mph N/A   Clear
7:35 PM 64.4 °F - 57.2 °F 77% 29.87 in 9.0 mi Variable 6.9 mph - N/A   Clear
7:55 PM 62.6 °F - 57.2 °F 82% 29.87 in 9.0 mi Variable 6.9 mph - N/A   Clear
8:15 PM 60.8 °F - 57.2 °F 88% 29.88 in 9.0 mi NW 5.8 mph - N/A   Clear
8:35 PM 59.0 °F - 57.2 °F 94% 29.89 in 9.0 mi NW 5.8 mph 11.5 mph N/A   Clear
8:55 PM 59.0 °F - 57.2 °F 94% 29.90 in 9.0 mi NW 4.6 mph - N/A   Clear
9:15 PM 57.2 °F - 57.2 °F 100% 29.91 in 10.0 mi NW 5.8 mph - N/A   Unknown
9:35 PM 57.2 °F - 57.2 °F 100% 29.91 in 8.0 mi NW 4.6 mph - N/A   Clear
9:55 PM 57.2 °F - 57.2 °F 100% 29.92 in 8.0 mi NW 4.6 mph - N/A   Scattered Clouds
10:15 PM 57.2 °F - 57.2 °F 100% 29.92 in 8.0 mi NW 5.8 mph - N/A   Mostly Cloudy
10:35 PM 59.0 °F - 57.2 °F 94% 29.93 in 8.0 mi Variable 6.9 mph - N/A   Unknown
10:55 PM 57.2 °F - 57.2 °F 100% 29.93 in 8.0 mi WNW 5.8 mph - N/A   Unknown
11:15 PM 57.2 °F - 57.2 °F 100% 29.93 in 8.0 mi Calm Calm - N/A   Unknown
11:35 PM 57.2 °F - 57.2 °F 100% 29.94 in 4.0 mi NW 6.9 mph - N/A   Mist
11:55 PM 57.2 °F - 57.2 °F 100% 29.94 in 6.0 mi NW 3.5 mph - N/A   Overcast