Weather History for Petersburg, AK

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Week of July 29, 2012 through August 4, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 64 °F 58 °F 53 °F
Mean Temperature 57 °F 54 °F 52 °F
Min Temperature 53 °F 51 °F 50 °F
Degree Days  
Heating Degree Days (base 65) 13 11 8 75
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 7 4 2 30
Dew Point  
Dew Point 55 °F 51 °F 45 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 18 mph 2 mph 0 mph
Gust Wind 32 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.26 in 30.09 in 29.94 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Aug. 04, 2012 Rise Set
Actual Time 4:58 AM AKDT 8:55 PM AKDT
Civil Twilight 4:10 AM AKDT 9:43 PM AKDT
Nautical Twilight 2:57 AM AKDT 10:54 PM AKDT
Astronomical Twilight 1:30 AM AKDT 12:25 AM AKDT
Moon 9:11 PM AKDT (8/4) 8:43 AM AKDT (8/4)
Length of Visible Light 17h 33m
Length of Day
15h 56m
Waning Gibbous, 92% of the Moon is Illuminated
Aug 4
Waning Gibbous
Aug 9
Last Quarter
Aug 17
New
Aug 24
First Quarter
Aug 31
Full

Daily Weather History & Observations

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Jul high avg low high avg low high avg low high avg low high avg low high avg high sum  
29 57 54 51 54 50 45 94 88 76 30.10 30.07 30.03 10 10 8 7 2 - 0.00  
30 57 54 51 55 52 48 100 92 82 30.06 30.03 30.00 10 8 1 6 1 - 0.00  
31 53 52 51 52 49 46 94 85 77 30.05 29.98 29.94 10 8 4 18 4 32 0.00  
2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Aug high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 64 57 50 54 49 45 94 80 63 30.19 30.08 29.97 10 10 10 8 2 - 0.00  
2 55 53 51 54 51 48 94 91 88 30.26 30.22 30.19 10 7 3 7 1 - 0.00  
3 57 55 53 54 53 52 94 93 82 30.20 30.15 30.11 10 5 2 8 1 - 0.00  
4 60 55 50 54 51 48 100 87 72 30.14 30.10 30.01 10 8 0 7 2 - 0.00