Weather History for Petersburg, AK

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Month of December, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 46 °F 34 °F 21 °F
Mean Temperature 42 °F 31 °F 18 °F
Min Temperature 37 °F 28 °F 14 °F
Degree Days  
Heating Degree Days (base 65) 48 34 22 1060
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 43 °F 28 °F 7 °F
Precipitation  
Precipitation 0.10 in 0.00 in 0.00 in 0.10 in
Snowdepth - - - -
Wind  
Wind 15 mph 3 mph 0 mph
Gust Wind 25 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.64 in 30.02 in 29.14 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 15, 2013 Rise Set
Actual Time 8:23 AM AKST 3:11 PM AKST
Civil Twilight 7:34 AM AKST 4:00 PM AKST
Nautical Twilight 6:43 AM AKST 4:50 PM AKST
Astronomical Twilight 5:57 AM AKST 5:37 PM AKST
Moon 2:35 PM AKST (12/15) 6:30 AM AKST (12/15)
Length of Visible Light 8h 25m
Length of Day
6h 47m
Waxing Gibbous, 98% of the Moon is Illuminated
Dec 15
Waxing Gibbous
Dec 17
Full
Dec 25
Last Quarter
Jan 1
New
Jan 7
First Quarter

Weather History Calendar

Precipitation Actual month total 0.10 Average Month Total: 19.24
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Partly Cloudy
Actual:
28 | 15 0.00
Average:
36 | 29 0.55
Clear
Actual:
24 | 15 0.00
Average:
36 | 29 0.55
Scattered Clouds
Actual:
26 | 17 0.00
Average:
36 | 29 0.55
Partly Cloudy
Actual:
24 | 17 0.00
Average:
36 | 29 0.55
Scattered Clouds
Actual:
24 | 15 0.00
Average:
36 | 29 0.55
Fog
Actual:
21 | 14 0.00
Average:
35 | 29 0.55
Scattered Clouds
Actual:
23 | 15 0.00
Average:
35 | 29 0.55
Partly Cloudy
Actual:
28 | 17 0.00
Average:
35 | 29 0.54
Overcast
Actual:
33 | 28 0.00
Average:
35 | 28 0.54
Snow
Actual:
33 | 30 0.10
Average:
35 | 28 0.54
Snow
Actual:
42 | 37 0.00
Average:
34 | 28 0.54
Snow
Actual:
41 | 33 0.00
Average:
34 | 28 0.91
Snow
Actual:
42 | 33 0.00
Average:
34 | 28 0.53
Rain
Actual:
46 | 35 0.00
Average:
34 | 28 0.52
Snow
Actual:
35 | 33 0.00
Average:
34 | 28 0.90
Snow
Actual:
35 | 32 0.00
Average:
34 | 28 0.51
Snow
Actual:
33 | 24 0.00
Average:
34 | 28 0.51
Mostly Cloudy
Actual:
26 | 15 0.00
Average:
34 | 27 0.89
Snow
Actual:
33 | 21 0.00
Average:
34 | 27 0.89
Snow
Actual:
32 | 28 0.00
Average:
34 | 27 0.50
Snow
Actual:
32 | 28 0.00
Average:
34 | 27 0.51
Rain
Actual:
39 | 35 0.00
Average:
34 | 27 0.89
Snow
Actual:
39 | 35 0.00
Average:
33 | 26 0.89
Snow
Actual:
37 | 33 0.00
Average:
33 | 26 0.89
Rain
Actual:
39 | 33 0.00
Average:
33 | 26 0.89
Rain
Actual:
39 | 35 0.00
Average:
33 | 25 0.51
Rain
Actual:
39 | 35 0.00
Average:
32 | 25 0.51
Rain
Actual:
39 | 37 0.00
Average:
32 | 25 0.50
Rain
Actual:
37 | 35 0.00
Average:
32 | 24 0.50
Rain
Actual:
42 | 37 0.00
Average:
32 | 24 0.49
Rain
Actual:
44 | 37 0.00
Average:
31 | 24 0.49
 

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

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 28 22 15 21 13 7 86 61 43 30.20 29.87 29.69 10 10 10 15 9 23 0.00  
2 24 20 15 19 15 10 100 83 69 30.63 30.46 30.21 10 10 10 5 1 - 0.00  
3 26 22 17 19 16 12 100 84 69 30.64 30.57 30.48 10 10 10 5 1 - 0.00  
4 24 20 17 19 16 12 93 86 74 30.49 30.41 30.36 10 10 10 5 1 - 0.00  
5 24 20 15 21 17 10 93 87 79 30.58 30.47 30.37 10 10 10 7 2 - 0.00  
6 21 18 14 18 14 10 93 85 73 30.62 30.58 30.26 10 10 10 5 3 - 0.00 Fog
7 23 19 15 19 15 10 93 85 79 30.48 30.40 30.37 10 10 10 4 1 - 0.00  
8 28 22 17 27 21 14 93 87 80 30.49 30.46 30.42 10 10 7 5 1 - 0.00  
9 33 30 28 30 29 25 93 91 86 30.46 30.37 30.32 10 8 0 0 0 - 0.00  
10 33 32 30 32 30 28 100 90 87 30.33 30.17 29.91 10 7 3 5 0 - 0.10 Fog , Rain , Snow
11 42 40 37 39 35 32 87 83 81 29.59 29.51 29.45 10 6 3 8 4 - 0.00 Rain , Snow
12 41 37 33 36 34 30 93 87 81 29.82 29.59 29.46 10 5 2 7 2 - 0.00 Rain , Snow
13 42 38 33 37 33 30 87 85 81 29.88 29.66 29.52 10 6 4 14 4 18 0.00 Rain , Snow
14 46 42 35 43 39 32 93 86 75 29.62 29.31 29.14 10 8 5 14 6 25 0.00 Rain
15 35 34 33 30 30 28 87 81 75 29.92 29.83 29.74 10 7 3 9 4 21 0.00 Rain , Snow
16 35 34 32 34 31 27 93 90 70 30.11 29.88 29.49 10 5 2 7 3 - 0.00 Snow
17 33 28 24 32 28 23 93 91 87 30.11 29.91 29.70 10 8 1 9 4 - 0.00 Snow
18 26 20 15 23 19 14 93 87 74 30.46 30.42 30.32 10 10 10 9 6 - 0.00  
19 33 27 21 30 27 19 93 90 86 30.13 29.83 29.67 10 4 2 8 5 - 0.00 Rain , Snow
20 32 31 28 30 29 25 93 90 80 29.89 29.70 29.50 10 5 2 4 1 - 0.00 Rain , Snow
21 32 29 28 28 27 25 93 89 86 29.98 29.94 29.82 10 9 3 0 0 - 0.00 Snow
22 39 37 35 36 34 34 100 89 81 29.68 29.55 29.50 10 5 1 7 3 - 0.00 Rain
23 39 37 35 36 32 28 93 81 65 30.18 29.99 29.77 10 9 1 10 3 17 0.00 Fog , Snow
24 37 35 33 34 32 30 93 88 81 30.29 30.18 29.91 10 8 5 6 1 - 0.00 Rain , Snow
25 39 36 33 37 35 32 93 93 87 29.89 29.85 29.72 10 4 2 6 3 - 0.00 Rain
26 39 37 35 37 35 34 93 93 93 29.72 29.68 29.62 2 1 0 5 1 - 0.00 Fog , Rain
27 39 37 35 37 36 34 93 93 87 30.30 30.09 29.84 10 8 2 6 1 - 0.00 Fog , Rain
28 39 38 37 36 34 34 93 86 81 30.34 30.09 29.81 10 8 5 14 4 25 0.00 Rain
29 37 36 35 36 35 34 93 93 93 30.05 30.01 29.89 10 3 0 7 2 - 0.00 Fog , Rain
30 42 40 37 37 37 36 93 89 76 29.84 29.68 29.53 10 6 2 9 2 - 0.00 Rain
31 44 40 37 37 37 36 93 91 76 30.07 30.02 29.94 10 5 2 12 1 - 0.00 Rain