Weather History for Livermore, CA

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Month of September, 2010

  Max Avg Min Sum
Temperature  
Max Temperature 105 °F 86 °F 69 °F
Mean Temperature 83 °F 71 °F 61 °F
Min Temperature 63 °F 55 °F 47 °F
Degree Days  
Heating Degree Days (base 65) 4 0 0 10
Cooling Degree Days (base 65) 18 6 0 184
Growing Degree Days (base 50) 32 20 11 611
Dew Point  
Dew Point 61 °F 49 °F 23 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 23 mph 6 mph 0 mph
Gust Wind 29 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.07 in 29.88 in 29.67 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 10, 2010 Rise Set
Actual Time 6:45 AM PDT 7:22 PM PDT
Civil Twilight 6:18 AM PDT 7:49 PM PDT
Nautical Twilight 5:47 AM PDT 8:20 PM PDT
Astronomical Twilight 5:15 AM PDT 8:52 PM PDT
Moon 9:32 AM PDT (9/10) 8:30 PM PDT (9/10)
Length of Visible Light 13h 30m
Length of Day
12h 37m
Waxing Crescent, 8% of the Moon is Illuminated
Sep 10
Waxing Crescent
Sep 14
First Quarter
Sep 23
Full
Sep 30
Last Quarter
Oct 7
New

Weather History Calendar

Precipitation Actual month total 0.00 Normal Month Total: 0.24
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Clear
Actual:
95 | 57 0.00
Average:
88 | 54 0.00
Clear
Actual:
101 | 59 0.00
Average:
87 | 54 0.00
Clear
Actual:
96 | 60 0.00
Average:
87 | 54 0.00
Clear
Actual:
91 | 54 0.00
Average:
87 | 54 0.00
Clear
Actual:
90 | 54 0.00
Average:
87 | 54 0.00
Clear
Actual:
95 | 56 0.00
Average:
87 | 54 0.00
Scattered Clouds
Actual:
76 | 56 0.00
Average:
87 | 54 0.00
Mostly Cloudy
Actual:
69 | 56 T
Average:
87 | 54 0.00
Partly Cloudy
Actual:
78 | 55 0.00
Average:
87 | 54 0.00
Clear
Actual:
85 | 51 0.00
Average:
87 | 54 0.00
Clear
Actual:
91 | 53 0.00
Average:
87 | 53 0.00
Clear
Actual:
82 | 54 0.00
Average:
87 | 53 0.00
Partly Cloudy
Actual:
77 | 51 0.00
Average:
86 | 53 0.01
Partly Cloudy
Actual:
83 | 51 0.00
Average:
86 | 53 0.01
Scattered Clouds
Actual:
79 | 51 0.00
Average:
86 | 53 0.01
Clear
Actual:
82 | 52 0.00
Average:
86 | 53 0.01
Partly Cloudy
Actual:
75 | 62 0.00
Average:
86 | 53 0.01
Partly Cloudy
Actual:
75 | 58 0.00
Average:
86 | 53 0.01
Partly Cloudy
Actual:
76 | 55 0.00
Average:
85 | 53 0.01
Partly Cloudy
Actual:
81 | 57 0.00
Average:
85 | 53 0.01
Scattered Clouds
Actual:
71 | 51 T
Average:
85 | 53 0.01
Partly Cloudy
Actual:
70 | 53 0.00
Average:
85 | 53 0.01
Clear
Actual:
85 | 47 0.00
Average:
85 | 52 0.01
Clear
Actual:
89 | 51 0.00
Average:
84 | 52 0.01
Clear
Actual:
97 | 52 0.00
Average:
84 | 52 0.01
Clear
Actual:
99 | 54 0.00
Average:
84 | 52 0.01
Clear
Actual:
100 | 56 0.00
Average:
84 | 52 0.02
Clear
Actual:
105 | 61 0.00
Average:
84 | 52 0.02
Clear
Actual:
102 | 63 0.00
Average:
84 | 52 0.02
Clear
Actual:
93 | 59 0.00
Average:
83 | 51 0.02
 

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

2010 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  
1 95 76 57 50 45 39 72 44 16 29.94 29.86 29.78 10 10 10 14 3 22 0.00  
2 101 80 59 46 45 41 60 38 15 29.88 29.83 29.78 10 10 10 18 3 22 0.00  
3 96 78 60 56 49 44 72 46 20 29.96 29.91 29.86 10 10 10 16 5 21 0.00  
4 91 73 54 53 50 45 93 57 21 29.96 29.90 29.82 10 10 7 13 6 15 0.00  
5 90 72 54 52 48 42 83 54 24 29.87 29.80 29.72 10 10 10 15 5 17 0.00  
6 95 76 56 48 37 23 64 37 9 29.77 29.73 29.67 10 10 10 14 4 20 0.00  
7 76 66 56 56 51 37 84 59 34 29.83 29.79 29.73 10 10 9 22 11 26 0.00  
8 69 63 56 56 52 48 87 70 52 29.90 29.86 29.83 10 10 10 23 14 29 T  
9 78 67 55 52 50 48 83 61 38 29.99 29.94 29.90 10 10 10 16 6 20 0.00  
10 85 68 51 50 47 43 89 56 23 30.01 29.96 29.90 10 10 10 13 3 18 0.00  
11 91 72 53 48 45 40 77 48 18 29.99 29.94 29.86 10 10 10 14 3 16 0.00  
12 82 68 54 51 49 44 83 58 33 29.98 29.94 29.90 10 10 10 17 7 21 0.00  
13 77 64 51 52 50 43 93 62 31 30.01 29.95 29.89 10 9 7 16 7 20 0.00  
14 83 67 51 50 47 41 96 61 26 30.02 29.96 29.91 10 10 8 13 4 23 0.00  
15 79 65 51 54 51 44 100 66 32 30.04 30.00 29.96 10 9 6 20 8 23 0.00  
16 82 67 52 60 55 51 93 68 42 30.01 29.95 29.87 10 10 10 14 7 21 0.00  
17 75 69 62 61 60 58 93 77 61 29.94 29.91 29.86 10 10 10 17 10 21 0.00  
18 75 67 58 61 58 54 93 74 54 29.96 29.93 29.89 10 10 6 20 8 24 0.00  
19 76 66 55 58 56 53 93 75 57 29.95 29.92 29.89 10 10 10 18 6 22 0.00  
20 81 69 57 57 55 53 90 65 39 29.91 29.84 29.76 10 10 10 16 5 21 0.00  
21 71 61 51 54 51 47 93 70 47 29.82 29.77 29.75 10 10 10 20 9 24 T  
22 70 62 53 52 49 45 86 64 42 29.93 29.83 29.77 10 10 10 17 9 21 0.00  
23 85 66 47 52 48 44 86 59 31 30.01 29.95 29.90 10 10 10 14 3 17 0.00  
24 89 70 51 48 45 39 77 48 18 30.07 30.02 29.98 10 10 10 14 4 18 0.00  
25 97 75 52 50 44 40 64 39 14 30.04 29.97 29.88 10 10 10 14 3 18 0.00  
26 99 77 54 49 44 41 62 39 15 29.97 29.90 29.83 10 10 10 13 2 16 0.00  
27 100 78 56 47 41 34 62 37 11 29.90 29.85 29.78 10 10 10 12 3 15 0.00  
28 105 83 61 49 42 37 64 37 10 29.88 29.82 29.75 10 10 10 10 2 28 0.00  
29 102 83 63 47 42 37 56 34 12 29.80 29.74 29.67 10 10 10 16 3 24 0.00  
30 93 76 59 55 50 44 84 53 21 29.88 29.77 29.73 10 10 10 17 6 20 0.00