Weather History for Petersburg, AK

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Month of October, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 53 °F 47 °F 42 °F
Mean Temperature 50 °F 43 °F 38 °F
Min Temperature 46 °F 39 °F 32 °F
Degree Days  
Heating Degree Days (base 65) 26 22 16 689
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 48 °F 40 °F 28 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 25 mph 3 mph 0 mph
Gust Wind 38 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.30 in 29.78 in 28.96 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Oct. 09, 2011 Rise Set
Actual Time 7:11 AM AKDT 6:05 PM AKDT
Civil Twilight 6:33 AM AKDT 6:43 PM AKDT
Nautical Twilight 5:49 AM AKDT 7:27 PM AKDT
Astronomical Twilight 5:04 AM AKDT 8:11 PM AKDT
Moon 4:55 PM AKDT (10/9) 4:47 AM AKDT (10/9)
Length of Visible Light 12h 09m
Length of Day
10h 53m
Waxing Gibbous, 95% of the Moon is Illuminated
Oct 9
Waxing Gibbous
Oct 11
Full
Oct 19
Last Quarter
Oct 26
New
Nov 2
First Quarter

Weather History Calendar

Precipitation Actual month total 0.00 Average Month Total: 22.34
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
51 | 35 0.00
Average:
49 | 40 0.65
Scattered Clouds
Actual:
51 | 32 0.00
Average:
49 | 40 0.65
Partly Cloudy
Actual:
46 | 32 0.00
Average:
49 | 40 0.65
Mostly Cloudy
Actual:
53 | 39 0.00
Average:
48 | 40 0.65
Partly Cloudy
Actual:
48 | 35 0.00
Average:
48 | 39 0.65
Overcast
Actual:
46 | 37 0.00
Average:
48 | 39 0.65
Mostly Cloudy
Actual:
48 | 42 0.00
Average:
47 | 39 0.65
Mostly Cloudy
Actual:
46 | 42 0.00
Average:
47 | 39 0.65
Overcast
Actual:
48 | 42 0.00
Average:
47 | 39 0.65
Partly Cloudy
Actual:
48 | 39 0.00
Average:
46 | 39 0.65
Overcast
Actual:
48 | 42 0.00
Average:
46 | 39 0.66
Overcast
Actual:
48 | 46 0.00
Average:
46 | 38 0.66
Mostly Cloudy
Actual:
46 | 39 0.00
Average:
46 | 38 0.66
Mostly Cloudy
Actual:
44 | 39 0.00
Average:
46 | 38 0.66
Overcast
Actual:
44 | 39 0.00
Average:
46 | 38 0.67
Overcast
Actual:
46 | 39 0.00
Average:
46 | 38 0.67
Overcast
Actual:
50 | 42 0.00
Average:
45 | 38 0.68
Mostly Cloudy
Actual:
53 | 46 0.00
Average:
45 | 38 0.68
Mostly Cloudy
Actual:
46 | 37 0.00
Average:
45 | 38 0.69
Mostly Cloudy
Actual:
46 | 37 0.00
Average:
45 | 37 0.69
Mostly Cloudy
Actual:
42 | 35 0.00
Average:
44 | 37 1.96
Overcast
Actual:
44 | 41 0.00
Average:
44 | 37 0.70
Overcast
Actual:
42 | 39 0.00
Average:
44 | 36 0.71
Overcast
Actual:
44 | 39 0.00
Average:
43 | 36 0.71
Overcast
Actual:
46 | 39 0.00
Average:
43 | 35 0.72
Overcast
Actual:
44 | 37 0.00
Average:
42 | 35 0.72
Overcast
Actual:
44 | 41 0.00
Average:
42 | 34 0.72
Overcast
Actual:
46 | 41 0.00
Average:
42 | 34 0.72
Overcast
Actual:
44 | 41 0.00
Average:
41 | 34 0.72
Overcast
Actual:
46 | 39 0.00
Average:
41 | 33 0.72
Mostly Cloudy
Actual:
44 | 37 0.00
Average:
41 | 33 0.72
 

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

2011 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Oct high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 51 43 35 41 38 30 100 81 44 30.05 29.98 29.88 10 10 5 7 2 - 0.00  
2 51 42 32 39 36 30 100 81 50 29.97 29.93 29.87 10 10 1 7 2 - 0.00  
3 46 39 32 39 35 28 100 87 66 29.78 29.55 29.25 10 10 10 7 2 - 0.00  
4 53 46 39 45 42 37 100 78 58 29.52 29.37 29.20 10 10 9 14 5 24 0.00  
5 48 42 35 43 39 36 100 93 76 29.78 29.67 29.56 10 7 0 6 1 - 0.00  
6 46 42 37 45 42 36 100 94 87 29.87 29.83 29.80 10 10 2 6 1 - 0.00  
7 48 45 42 45 44 41 100 94 87 30.09 30.02 29.91 10 9 3 7 1 - 0.00  
8 46 44 42 43 42 41 93 91 81 30.01 29.66 29.34 10 10 5 9 3 - 0.00  
9 48 45 42 45 43 41 100 93 87 29.75 29.65 29.41 10 9 5 8 2 - 0.00  
10 48 44 39 43 40 37 100 87 71 29.64 29.40 29.23 10 10 1 7 2 - 0.00  
11 48 45 42 46 43 39 100 92 87 29.43 29.32 29.23 10 10 10 10 3 - 0.00  
12 48 47 46 46 45 45 100 91 87 29.93 29.71 29.50 10 7 5 6 2 - 0.00  
13 46 42 39 45 41 37 100 88 76 30.11 30.08 30.01 10 10 5 12 2 - 0.00  
14 44 42 39 39 38 37 100 89 76 30.13 30.11 30.08 10 10 2 7 1 - 0.00  
15 44 42 39 39 37 36 100 84 76 30.08 30.04 29.97 10 10 7 9 2 17 0.00  
16 46 42 39 43 39 36 93 84 76 29.96 29.94 29.91 10 9 4 9 4 - 0.00  
17 50 46 42 46 44 39 100 93 87 29.94 29.91 29.86 10 7 4 10 2 - 0.00  
18 53 50 46 48 44 39 94 81 62 29.91 29.83 29.73 10 9 5 14 6 24 0.00  
19 46 42 37 43 40 36 100 90 81 29.92 29.85 29.81 10 10 7 6 2 - 0.00  
20 46 42 37 41 38 36 100 89 76 30.02 30.00 29.94 10 10 4 9 1 - 0.00  
21 42 38 35 39 36 30 100 86 61 29.81 29.59 29.47 10 8 5 9 3 - 0.00  
22 44 42 41 41 39 37 93 84 76 29.71 29.64 29.56 10 8 5 12 3 23 0.00  
23 42 40 39 41 39 37 100 90 81 29.91 29.83 29.78 10 8 5 5 1 - 0.00  
24 44 42 39 43 40 39 100 93 87 30.25 30.09 29.94 10 9 0 4 1 - 0.00  
25 46 42 39 41 39 37 100 86 71 30.30 30.12 29.74 10 9 2 14 3 23 0.00  
26 44 40 37 39 37 34 100 87 76 29.93 29.70 29.54 10 8 3 14 2 22 0.00  
27 44 42 41 39 37 34 93 82 66 30.01 29.93 29.62 10 10 5 13 4 20 0.00  
28 46 44 41 41 38 34 93 81 62 29.54 29.16 28.96 10 7 2 25 11 38 0.00  
29 44 42 41 41 38 36 93 84 76 29.67 29.54 29.38 10 6 4 15 4 26 0.00  
30 46 42 39 41 38 36 93 85 71 29.69 29.55 29.47 10 9 3 15 6 23 0.00  
31 44 40 37 39 36 32 93 80 66 30.24 30.12 29.92 10 10 10 12 3 18 0.00