Weather History for Palo Alto, CA

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Week of September 4, 2011 through September 10, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 86 °F 74 °F 69 °F
Mean Temperature 70 °F 66 °F 62 °F
Min Temperature 60 °F 57 °F 53 °F
Degree Days  
Heating Degree Days (base 65) 3 1 0 5
Cooling Degree Days (base 65) 4 1 0 9
Growing Degree Days (base 50) 20 16 12 111
Dew Point  
Dew Point 64 °F 57 °F 52 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 18 mph 9 mph 0 mph
Gust Wind 23 mph 19 mph 15 mph
Sea Level Pressure  
Sea Level Pressure 30.09 in 29.92 in 29.72 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Sep. 05, 2011 Rise Set
Actual Time 6:42 AM PDT 7:31 PM PDT
Civil Twilight 6:15 AM PDT 7:58 PM PDT
Nautical Twilight 5:43 AM PDT 8:29 PM PDT
Astronomical Twilight 5:11 AM PDT 9:01 PM PDT
Moon 3:16 PM PDT (9/5) 12:09 AM PDT (9/5)
Length of Visible Light 13h 42m
Length of Day
12h 49m
First Quarter, 61% of the Moon is Illuminated
Sep 5
First Quarter
Sep 12
Full
Sep 20
Last Quarter
Sep 27
New
Oct 3
First Quarter

Daily Weather History & Observations

2011 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  
4 69 64 60 59 58 57 88 80 64 29.94 29.90 29.87 20 10 4 17 9 - 0.00  
5 69 63 57 57 55 54 88 74 60 29.96 29.93 29.90 10 10 8 17 10 15 0.00  
6 78 68 57 61 57 55 94 72 44 30.00 29.97 29.91 20 10 5 13 8 - 0.00  
7 86 70 53 63 57 52 94 64 31 30.02 29.98 29.95 - - - 15 7 - 0.00  
8 71 62 53 57 55 52 94 77 57 30.09 30.04 29.98 15 11 10 18 8 - 0.00  
9 73 66 59 61 58 55 88 76 61 29.91 29.83 29.73 20 11 7 15 8 - 0.00 Rain
10 75 68 60 64 61 57 88 75 61 29.80 29.78 29.72 20 16 10 18 12 23 0.00