Weather History for Palo Alto, CA

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Week of December 16, 2012 through December 22, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 60 °F 57 °F 53 °F
Mean Temperature 56 °F 51 °F 42 °F
Min Temperature 51 °F 44 °F 30 °F
Degree Days  
Heating Degree Days (base 65) 24 15 10 102
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 6 2 0 17
Dew Point  
Dew Point 54 °F 42 °F 19 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 23 mph 9 mph 0 mph
Gust Wind 34 mph 25 mph 21 mph
Sea Level Pressure  
Sea Level Pressure 30.32 in 30.06 in 29.88 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Dec. 22, 2012 Rise Set
Actual Time 7:20 AM PST 4:54 PM PST
Civil Twilight 6:50 AM PST 5:24 PM PST
Nautical Twilight 6:17 AM PST 5:56 PM PST
Astronomical Twilight 5:46 AM PST 6:28 PM PST
Moon 1:11 PM PST (12/22) 2:14 AM PST (12/22)
Length of Visible Light 10h 33m
Length of Day
9h 34m
Waxing Gibbous, 74% of the Moon is Illuminated
Dec 22
Waxing Gibbous
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter

Daily Weather History & Observations

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
16 57 52 46 52 48 45 93 81 72 30.11 30.07 30.03 20 16 15 12 6 - 0.00  
17 59 55 50 54 51 45 100 86 76 30.08 30.03 29.99 13 9 3 12 9 - 0.00 Rain
18 53 47 41 39 36 34 76 60 47 30.15 30.08 30.04 20 20 20 17 9 25 0.00  
19 53 42 30 36 29 19 93 61 26 30.32 30.27 30.23 20 20 20 7 3 - 0.00  
20 59 50 41 41 36 27 58 53 48 30.20 30.10 30.02 20 20 20 18 14 23 0.00  
21 57 54 51 52 46 37 88 74 55 29.95 29.92 29.88 20 13 10 23 16 34 0.00 Rain
22 60 56 51 52 48 45 94 77 59 30.07 29.98 29.89 20 13 5 14 9 - 0.00 Rain