Weather History for Palo Alto, CA

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Month of May, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 87 °F 71 °F 60 °F
Mean Temperature 69 °F 61 °F 55 °F
Min Temperature 57 °F 51 °F 44 °F
Degree Days  
Heating Degree Days (base 65) 10 4 0 124
Cooling Degree Days (base 65) 4 0 0 6
Growing Degree Days (base 50) 19 11 5 346
Dew Point  
Dew Point 66 °F 50 °F 32 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 23 mph 10 mph 0 mph
Gust Wind 32 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.21 in 30.00 in 29.76 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

May. 03, 2012 Rise Set
Actual Time 6:10 AM PDT 8:00 PM PDT
Civil Twilight 5:42 AM PDT 8:29 PM PDT
Nautical Twilight 5:07 AM PDT 9:03 PM PDT
Astronomical Twilight 4:31 AM PDT 9:40 PM PDT
Moon 5:33 PM PDT (5/3) 4:14 AM PDT (5/3)
Length of Visible Light 14h 46m
Length of Day
13h 50m
Waxing Gibbous, 92% of the Moon is Illuminated
May 3
Waxing Gibbous
May 5
Full
May 12
Last Quarter
May 20
New
May 28
First Quarter

Weather History Calendar

Precipitation Actual month total 0.00 Average Month Total: 0.74
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
68 | 53 0.00
Average:
70 | 45 0.04
Partly Cloudy
Actual:
66 | 44 0.00
Average:
71 | 46 0.04
Mostly Cloudy
Actual:
64 | 51 0.00
Average:
73 | 47 0.04
Scattered Clouds
Actual:
64 | 51 0.00
Average:
71 | 47 0.04
Clear
Actual:
77 | 44 0.00
Average:
71 | 47 0.03
Scattered Clouds
Actual:
84 | 46 0.00
Average:
71 | 46 0.03
Clear
Actual:
87 | 51 0.00
Average:
71 | 47 0.03
Scattered Clouds
Actual:
80 | 51 0.00
Average:
73 | 48 0.03
Clear
Actual:
71 | 51 0.00
Average:
72 | 48 0.02
Scattered Clouds
Actual:
80 | 46 0.00
Average:
71 | 47 0.02
Clear
Actual:
82 | 51 0.00
Average:
72 | 47 0.02
Scattered Clouds
Actual:
73 | 53 0.00
Average:
72 | 47 0.03
Partly Cloudy
Actual:
68 | 57 0.00
Average:
73 | 49 0.03
Partly Cloudy
Actual:
69 | 55 0.00
Average:
74 | 48 0.02
Scattered Clouds
Actual:
66 | 50 0.00
Average:
74 | 48 0.03
Partly Cloudy
Actual:
64 | 53 0.00
Average:
75 | 48 0.03
Scattered Clouds
Actual:
69 | 53 0.00
Average:
74 | 48 0.02
Scattered Clouds
Actual:
71 | 53 0.00
Average:
77 | 48 0.02
Clear
Actual:
71 | 50 0.00
Average:
73 | 48 0.02
Clear
Actual:
73 | 51 0.00
Average:
75 | 49 0.02
Partly Cloudy
Actual:
69 | 53 0.00
Average:
75 | 49 0.02
Scattered Clouds
Actual:
75 | 55 0.00
Average:
74 | 48 0.02
Scattered Clouds
Actual:
69 | 55 0.00
Average:
74 | 50 0.02
Clear
Actual:
68 | 51 0.00
Average:
74 | 48 0.02
Partly Cloudy
Actual:
64 | 51 0.00
Average:
74 | 50 0.02
Partly Cloudy
Actual:
60 | 50 0.00
Average:
73 | 50 0.02
Partly Cloudy
Actual:
64 | 53 0.00
Average:
73 | 51 0.02
Partly Cloudy
Actual:
68 | 53 0.00
Average:
75 | 50 0.01
Scattered Clouds
Actual:
68 | 51 0.00
Average:
74 | 50 0.01
Scattered Clouds
Actual:
73 | 51 0.00
Average:
75 | 50 0.01
Clear
Actual:
80 | 51 0.00
Average:
77 | 51 0.01
 

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
May high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 68 60 53 50 45 41 82 59 43 29.95 29.94 29.93 20 16 10 17 10 - 0.00  
2 66 55 44 45 43 39 81 59 40 30.00 29.97 29.95 20 17 15 18 8 28 0.00  
3 64 58 51 54 50 45 82 68 56 30.07 30.05 30.00 20 16 7 14 9 23 0.00  
4 64 58 51 45 43 41 76 56 45 30.21 30.19 30.16 20 18 15 20 13 23 0.00  
5 77 60 44 50 43 39 87 46 26 30.21 30.14 30.06 - - - 17 10 - 0.00  
6 84 65 46 55 44 37 87 39 19 30.07 30.03 29.99 - - - 20 8 - 0.00  
7 87 69 51 63 52 46 82 48 24 30.03 29.99 29.94 20 12 10 16 7 - 0.00  
8 80 66 51 59 55 50 94 63 42 29.97 29.93 29.90 20 14 10 20 7 20 0.00  
9 71 61 51 66 54 46 94 68 52 29.96 29.93 29.89 10 10 8 21 9 23 0.00  
10 80 63 46 55 50 43 93 56 29 29.93 29.89 29.84 15 11 10 17 7 - 0.00  
11 82 66 51 61 54 48 88 58 35 29.94 29.92 29.90 20 11 5 17 9 - 0.00  
12 73 63 53 57 55 52 94 69 50 30.05 30.02 29.99 12 8 5 17 10 23 0.00  
13 68 62 57 54 52 48 88 71 56 30.08 30.06 30.01 15 10 7 17 10 23 0.00  
14 69 62 55 54 49 46 77 60 49 30.10 30.07 30.03 20 18 15 17 8 24 0.00  
15 66 58 50 55 52 46 87 73 64 30.07 30.03 30.00 20 18 15 18 11 24 0.00  
16 64 58 53 54 53 50 94 77 68 30.04 30.01 29.96 15 9 7 20 10 - 0.00  
17 69 61 53 52 48 45 94 61 43 29.93 29.92 29.91 10 8 5 20 12 29 0.00  
18 71 62 53 55 51 45 77 62 52 29.99 29.95 29.91 10 9 7 17 9 23 0.00  
19 71 60 50 55 51 45 82 64 50 30.00 29.97 29.94 15 10 7 17 7 - 0.00  
20 73 62 51 57 52 46 82 59 47 30.00 29.96 29.93 15 13 10 22 9 24 0.00  
21 69 61 53 59 56 50 88 75 64 30.10 30.08 30.06 20 12 7 21 10 24 0.00  
22 75 65 55 55 51 45 88 57 36 30.14 30.11 30.06 20 12 8 21 12 29 0.00  
23 69 62 55 50 46 41 82 53 40 30.04 29.99 29.95 20 15 10 23 13 29 0.00  
24 68 60 51 48 45 32 76 53 36 29.90 29.83 29.77 15 14 10 20 12 32 0.00  
25 64 58 51 46 44 41 76 59 45 29.82 29.79 29.76 20 14 10 23 17 29 0.00  
26 60 55 50 48 48 45 82 69 59 30.09 30.00 29.90 15 13 10 16 10 23 0.00  
27 64 58 53 52 49 45 82 68 59 30.17 30.13 30.09 20 16 10 20 11 23 0.00  
28 68 60 53 52 48 43 88 60 46 30.10 30.07 30.04 15 15 15 20 11 25 0.00  
29 68 60 51 55 50 46 82 66 52 30.09 30.05 30.02 20 14 10 18 9 24 0.00  
30 73 62 51 55 54 48 88 70 53 30.11 30.07 30.02 20 13 10 20 9 24 0.00  
31 80 66 51 59 55 50 94 62 42 30.04 29.95 29.86 15 15 13 18 10 24 0.00