Weather History for Palo Alto, CA

Change the Weather History Date:

Saturday, September 22, 2012

  Actual Average Record
Temperature  
Mean Temperature 62 °F -  
Max Temperature 77 °F 78 °F 93 °F (2003)
Min Temperature 48 °F 51 °F 44 °F (1968)
Degree Days  
Heating Degree Days 2    
Growing Degree Days 12 (Base 50)    
Moisture  
Dew Point 55 °F    
Average Humidity 67    
Maximum Humidity 93    
Minimum Humidity 44    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.90 in    
Wind  
Wind Speed 8 mph (North)    
Max Wind Speed 15 mph    
Max Gust Speed -    
Visibility 9 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

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Sep. 22, 2012 Rise Set
Actual Time 6:56 AM PDT 7:04 PM PDT
Civil Twilight 6:30 AM PDT 7:30 PM PDT
Nautical Twilight 6:00 AM PDT 8:00 PM PDT
Astronomical Twilight 5:29 AM PDT 8:31 PM PDT
Moon 2:12 PM PDT (9/22) No Moon Set
Length of Visible Light 12h 59m
Length of Day
12h 07m
Waxing Crescent, 50% of the Moon is Illuminated
Sep 22
Waxing Crescent
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
6:47 AM 48.2 °F 46.4 °F 93% 29.93 in 7.0 mi Variable 3.5 mph - N/A   Partly Cloudy
9:47 AM 62.6 °F 55.4 °F 77% 29.94 in 7.0 mi NNE 5.8 mph - N/A   Partly Cloudy
10:47 AM 64.4 °F 57.2 °F 77% 29.93 in 7.0 mi NNE 5.8 mph - N/A   Partly Cloudy
11:47 AM 66.2 °F 55.4 °F 68% 29.93 in 10.0 mi North 8.1 mph - N/A   Partly Cloudy
12:47 PM 71.6 °F 57.2 °F 60% 29.91 in 10.0 mi North 9.2 mph - N/A   Partly Cloudy
1:47 PM 75.2 °F 55.4 °F 50% 29.89 in 10.0 mi NNW 11.5 mph - N/A   Clear
2:47 PM 77.0 °F 53.6 °F 44% 29.88 in 25.0 mi NNW 12.7 mph - N/A   Clear
3:47 PM 77.0 °F 55.4 °F 47% 29.87 in 25.0 mi NNW 15.0 mph - N/A   Clear
4:47 PM 75.2 °F 55.4 °F 50% 29.86 in 30.0 mi NNW 15.0 mph - N/A   Clear
6:47 PM 66.2 °F 57.2 °F 73% 29.87 in 10.0 mi NNW 10.4 mph - N/A   Partly Cloudy
7:47 PM 62.6 °F 57.2 °F 82% 29.89 in 25.0 mi NNW 8.1 mph - N/A   Partly Cloudy
8:47 PM 60.8 °F 55.4 °F 82% 29.91 in 25.0 mi Variable 6.9 mph - N/A   Clear