Weather History for KOAK - September, 2012

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 88 °F 69 °F 61 °F
Mean Temperature 68 °F 61 °F 57 °F
Min Temperature 55 °F 52 °F 47 °F
Degree Days  
Heating Degree Days (base 65) 8 4 0 131
Cooling Degree Days (base 65) 3 0 0 3
Growing Degree Days (base 50) 18 10 6 307
Dew Point  
Dew Point 56 °F 52 °F 47 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 23 mph 8 mph 0 mph
Gust Wind 79 mph 22 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.15 in 30.00 in 29.84 in

Monthly Weather History Graph

Monthly Weather History Graph

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Astronomy

Sep. 25, 2012 Rise Set
Actual Time 6:59 AM PDT 7:00 PM PDT
Civil Twilight 6:33 AM PDT 7:26 PM PDT
Nautical Twilight 6:03 AM PDT 7:56 PM PDT
Astronomical Twilight 5:32 AM PDT 8:27 PM PDT
Moon 4:24 PM PDT (9/25) 2:31 AM PDT (9/25)
Length of Visible Light 12h 52m
Length of Day
12h 00m
Waxing Gibbous, 81% of the Moon is Illuminated
Sep 25
Waxing Gibbous
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New
Oct 21
First Quarter

Daily Weather History & Observations

2012 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 66 59 51 54 52 51 93 76 58 30.06 30.02 29.99 10 10 7 18 9 23 0.00 Fog
2 77 63 49 56 53 48 100 73 46 30.01 29.97 29.91 10 8 5 17 5 18 0.00  
3 77 64 50 56 54 51 93 70 46 29.98 29.95 29.91 10 9 6 18 7 23 0.00 Fog
4 67 60 52 55 53 50 100 79 58 30.05 30.01 29.98 10 10 7 18 8 31 0.00 Fog
5 65 60 55 54 53 52 93 80 67 30.02 29.99 29.95 10 9 6 16 7 29 T  
6 68 61 54 54 52 50 93 74 55 30.04 29.99 29.97 10 10 8 20 9 40 0.00  
7 71 62 52 52 51 49 89 71 53 30.11 30.06 30.03 10 10 10 17 10 20 0.00  
8 66 60 54 52 51 50 83 73 63 30.10 30.05 30.00 10 10 10 18 12 22 0.00  
9 69 61 52 55 52 48 93 75 57 30.02 29.98 29.94 10 10 8 17 8 23 0.00  
10 75 65 54 55 53 50 93 71 49 29.95 29.91 29.84 10 9 7 16 7 20 0.00  
11 71 61 51 55 53 49 93 75 57 29.98 29.92 29.86 10 8 4 20 7 22 0.00  
12 68 62 55 56 55 53 93 80 67 30.09 30.03 29.98 10 8 5 16 7 22 0.00  
13 70 63 55 55 54 53 93 77 61 30.12 30.07 30.03 10 8 3 18 7 21 0.00  
14 68 62 55 54 53 52 93 78 63 30.13 30.08 30.04 10 9 6 17 10 23 0.00  
15 67 60 53 54 52 51 93 76 58 30.13 30.08 30.01 10 10 10 16 8 30 0.00  
16 67 59 51 53 51 50 100 79 58 30.07 30.03 29.99 10 10 7 20 7 29 0.00  
17 65 60 54 52 51 50 93 77 60 30.09 30.05 30.01 10 10 7 18 9 32 0.00  
18 65 59 52 54 50 48 89 75 60 30.14 30.09 30.05 10 10 10 18 11 24 0.00  
19 65 60 54 52 51 50 93 78 63 30.15 30.10 30.07 10 10 10 20 14 28 0.00  
20 64 57 50 52 51 48 93 78 63 30.10 30.06 30.01 10 10 10 17 9 26 0.00  
21 71 60 48 53 51 48 100 77 53 30.02 29.97 29.92 10 9 8 18 6 20 0.00  
22 75 61 47 54 51 47 100 73 46 29.95 29.92 29.88 10 10 9 18 5 22 0.00  
23 72 60 48 54 53 48 100 77 53 29.97 29.94 29.91 10 10 9 18 7 22 0.00  
24 68 59 50 55 53 50 100 80 59 29.99 29.94 29.90 10 10 8 14 7 17 0.00  
25 68 58 48 55 52 48 100 84 67 29.95 29.91 29.87 10 8 4 21 6 79 0.00  
26 65 58 51 54 52 51 100 84 67 29.93 29.90 29.85 10 8 5 20 8 26 0.00  
27 72 62 52 56 53 51 100 79 57 29.96 29.91 29.85 10 7 2 17 6 20 0.00 Fog
28 61 57 52 54 53 52 100 89 78 29.99 29.94 29.89 10 8 4 23 8 38 0.00  
29 69 61 53 55 54 52 100 81 61 30.06 30.02 29.98 10 9 7 17 6 22 0.00 Fog
30 88 68 48 56 52 47 100 66 31 30.08 30.02 29.96 10 10 10 14 3 17 0.00