Weather History for Palo Alto, CA

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 69 °F 57 °F 50 °F
Mean Temperature 62 °F 51 °F 42 °F
Min Temperature 59 °F 44 °F 30 °F
Degree Days  
Heating Degree Days (base 65) 24 14 2 448
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 12 2 0 76
Dew Point  
Dew Point 63 °F 45 °F 19 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 23 mph 7 mph 0 mph
Gust Wind 34 mph 24 mph 20 mph
Sea Level Pressure  
Sea Level Pressure 30.32 in 30.06 in 29.80 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 02, 2012 Rise Set
Actual Time 7:05 AM PST 4:50 PM PST
Civil Twilight 6:36 AM PST 5:19 PM PST
Nautical Twilight 6:04 AM PST 5:51 PM PST
Astronomical Twilight 5:32 AM PST 6:23 PM PST
Moon 8:41 PM PST 10:00 AM PST
Length of Visible Light 10h 42m
Length of Day
9h 44m
Waning Gibbous, 85% of the Moon is Illuminated
Dec 2
Waning Gibbous
Dec 6
Last Quarter
Dec 13
New
Dec 19
First Quarter
Dec 28
Full

Weather History Calendar

Precipitation Actual month total 0.00 Average Month Total: 4.05
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
66 | 59 0.00
Average:
60 | 38 0.10
Rain
Actual:
64 | 50 0.00
Average:
60 | 38 0.10
Partly Cloudy
Actual:
60 | 42 0.00
Average:
60 | 39 0.10
Mostly Cloudy
Actual:
60 | 50 0.00
Average:
60 | 39 0.10
Rain
Actual:
64 | 59 0.00
Average:
59 | 39 0.10
Partly Cloudy
Actual:
60 | 53 0.00
Average:
59 | 39 0.11
Scattered Clouds
Actual:
62 | 46 0.00
Average:
59 | 39 0.12
Partly Cloudy
Actual:
60 | 39 0.00
Average:
59 | 38 0.12
Clear
Actual:
66 | 41 0.00
Average:
59 | 39 0.12
Clear
Actual:
69 | 44 0.00
Average:
58 | 39 0.13
Partly Cloudy
Actual:
59 | 39 0.00
Average:
58 | 37 0.12
Rain
Actual:
55 | 44 0.00
Average:
59 | 36 0.12
Scattered Clouds
Actual:
53 | 35 0.00
Average:
57 | 37 0.12
Rain
Actual:
51 | 41 0.00
Average:
57 | 36 0.12
Rain
Actual:
50 | 37 0.00
Average:
57 | 37 0.12
Mostly Cloudy
Actual:
57 | 46 0.00
Average:
57 | 36 0.12
Rain
Actual:
59 | 50 0.00
Average:
58 | 36 0.13
Scattered Clouds
Actual:
53 | 41 0.00
Average:
58 | 36 0.13
Clear
Actual:
53 | 30 0.00
Average:
56 | 37 0.14
Partly Cloudy
Actual:
59 | 41 0.00
Average:
55 | 37 0.14
Rain
Actual:
57 | 51 0.00
Average:
56 | 37 0.14
Rain
Actual:
60 | 51 0.00
Average:
55 | 36 0.14
Rain
Actual:
55 | 50 0.00
Average:
54 | 36 0.14
Partly Cloudy
Actual:
57 | 41 0.00
Average:
56 | 35 0.15
Rain
Actual:
53 | 42 0.00
Average:
55 | 36 0.15
Rain
Actual:
53 | 46 0.00
Average:
56 | 34 0.15
Scattered Clouds
Actual:
55 | 41 0.00
Average:
55 | 35 0.16
Mostly Cloudy
Actual:
51 | 37 0.00
Average:
55 | 36 0.17
Partly Cloudy
Actual:
53 | 42 0.00
Average:
55 | 37 0.16
Scattered Clouds
Actual:
55 | 33 0.00
Average:
55 | 35 0.17
Partly Cloudy
Actual:
53 | 33 0.00
Average:
55 | 36 0.16
 

Calendar Legend

Sunny
Clear
Mostly Cloudy
Partly Sunny
Partly Cloudy
Mostly Sunny
Cloudy Rain Snow
Hail
Flurries
Thunderstorms Hazy
Fog
Sleet '?' denotes
'chance of'
Unknown

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  
1 66 62 59 59 58 55 94 84 73 30.04 29.99 29.92 15 10 6 12 9 - 0.00 Rain
2 64 57 50 59 52 46 94 82 63 30.07 29.96 29.80 20 10 1 21 11 29 0.00 Rain
3 60 51 42 52 48 43 100 78 55 30.21 30.17 30.15 15 15 15 7 4 - 0.00  
4 60 55 50 55 52 48 100 81 63 30.23 30.20 30.17 10 10 10 13 7 - 0.00  
5 64 62 59 63 59 57 100 95 94 30.16 30.12 30.07 10 6 2 9 7 - 0.00 Rain
6 60 56 53 52 50 48 88 77 67 30.14 30.11 30.08 10 9 6 14 8 - 0.00  
7 62 54 46 52 49 46 100 84 55 30.15 30.10 30.07 10 10 10 9 4 - 0.00  
8 60 50 39 50 45 39 100 75 48 30.11 30.07 30.04 15 12 10 8 4 - 0.00  
9 66 54 41 61 46 39 93 68 40 30.18 30.14 30.11 20 19 15 9 5 - 0.00  
10 69 56 44 50 45 41 93 63 38 30.23 30.17 30.12 20 20 20 8 4 - 0.00  
11 59 49 39 54 47 37 100 83 62 30.05 29.96 29.87 20 14 10 15 7 22 0.00  
12 55 50 44 46 44 41 87 77 63 29.92 29.88 29.87 20 16 8 13 6 21 0.00 Rain
13 53 44 35 43 40 36 100 80 67 29.93 29.89 29.86 20 15 10 12 4 - 0.00  
14 51 46 41 45 41 37 93 78 67 30.00 29.92 29.84 20 12 10 10 7 - 0.00 Rain
15 50 44 37 46 42 36 93 86 76 30.09 30.04 30.00 10 9 5 12 9 - 0.00 Rain
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
23 55 52 50 52 50 46 94 92 87 30.01 29.94 29.87 10 6 1 21 15 32 0.00 Rain
24 57 49 41 - - - - - - 30.21 30.17 30.15 20 20 20 10 6 - 0.00  
25 53 48 42 48 44 41 94 84 67 30.12 29.95 29.80 20 13 8 22 10 29 0.00 Rain
26 53 50 46 48 46 45 100 84 72 30.07 30.01 29.94 20 11 3 16 8 23 0.00 Rain
27 55 48 41 45 40 23 93 72 35 30.17 30.14 30.12 20 12 10 12 5 - 0.00  
28 51 44 37 41 40 37 100 81 67 30.18 30.11 30.03 20 20 20 9 3 - 0.00  
29 53 48 42 45 42 39 87 81 67 30.09 30.04 30.01 15 14 10 22 12 23 0.00  
30 55 44 33 45 39 34 100 77 58 30.13 30.09 30.06 20 20 20 12 5 - 0.00  
31 53 43 33 39 31 25 100 59 38 30.30 30.27 30.24 - - - 9 5 - 0.00