Weather History for Petersburg, AK

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Month of December, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 8 °C 1 °C -6 °C
Mean Temperature 6 °C -1 °C -8 °C
Min Temperature 3 °C -2 °C -10 °C
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 6 °C -2 °C -14 °C
Precipitation  
Precipitation 2.5 mm 0.1 mm 0.0 mm 2.54 mm
Snowdepth - - - -
Wind  
Wind 24 km/h 4 km/h 0 km/h
Gust Wind 40 km/h 32 km/h 26 km/h
Sea Level Pressure  
Sea Level Pressure 1037 hPa 1016 hPa 987 hPa

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 10, 2013 Rise Set
Actual Time 8:17 AM AKST 3:11 PM AKST
Civil Twilight 7:29 AM AKST 4:00 PM AKST
Nautical Twilight 6:39 AM AKST 4:50 PM AKST
Astronomical Twilight 5:52 AM AKST 5:36 PM AKST
Moon 12:19 PM AKST (12/10) 12:35 AM AKST (12/10)
Length of Visible Light 8h 30m
Length of Day
6h 53m
Waxing Gibbous, 63% of the Moon is Illuminated
Dec 10
Waxing Gibbous
Dec 17
Full
Dec 25
Last Quarter
Jan 1
New
Jan 7
First Quarter

Weather History Calendar

Precipitation Actual month total 2.54 Average Month Total: 48.9
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Partly Cloudy
Actual:
-2 | -9 0.00
Average:
2 | -2 1.40
Clear
Actual:
-4 | -9 0.00
Average:
2 | -2 1.40
Scattered Clouds
Actual:
-3 | -8 0.00
Average:
2 | -2 1.40
Partly Cloudy
Actual:
-4 | -8 0.00
Average:
2 | -2 1.40
Scattered Clouds
Actual:
-4 | -9 0.00
Average:
2 | -2 1.40
Fog
Actual:
-6 | -10 0.00
Average:
2 | -2 1.40
Scattered Clouds
Actual:
-5 | -9 0.00
Average:
2 | -2 1.40
Partly Cloudy
Actual:
-2 | -8 0.00
Average:
2 | -2 1.37
Overcast
Actual:
1 | -2 0.00
Average:
2 | -2 1.37
Snow
Actual:
1 | -1 2.54
Average:
2 | -2 1.37
Snow
Actual:
6 | 3 0.00
Average:
1 | -2 1.37
Snow
Actual:
5 | 1 0.00
Average:
1 | -2 2.31
Snow
Actual:
6 | 1 0.00
Average:
1 | -2 1.35
Rain
Actual:
8 | 2 0.00
Average:
1 | -2 1.32
Snow
Actual:
2 | 1 0.00
Average:
1 | -2 2.29
Snow
Actual:
2 | 0 0.00
Average:
1 | -2 1.30
Snow
Actual:
1 | -4 0.00
Average:
1 | -2 1.30
Mostly Cloudy
Actual:
-3 | -9 0.00
Average:
1 | -3 2.26
Snow
Actual:
1 | -6 0.00
Average:
1 | -3 2.26
Snow
Actual:
0 | -2 0.00
Average:
1 | -3 1.27
Snow
Actual:
0 | -2 0.00
Average:
1 | -3 1.30
Rain
Actual:
4 | 2 0.00
Average:
1 | -3 2.26
Snow
Actual:
4 | 2 0.00
Average:
1 | -3 2.26
Snow
Actual:
3 | 1 0.00
Average:
1 | -3 2.26
Rain
Actual:
4 | 1 0.00
Average:
1 | -3 2.26
Rain
Actual:
4 | 2 0.00
Average:
1 | -4 1.30
Rain
Actual:
4 | 2 0.00
Average:
0 | -4 1.30
Rain
Actual:
4 | 3 0.00
Average:
0 | -4 1.27
Rain
Actual:
3 | 2 0.00
Average:
0 | -4 1.27
Rain
Actual:
6 | 3 0.00
Average:
0 | -4 1.24
Rain
Actual:
7 | 3 0.00
Average:
-1 | -4 1.24
 

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. (°C) Dew Point (°C) Humidity (%) Sea Level Press. (hPa) Visibility (km) Wind (km/h) Precip. (mm) Events
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 -2 -6 -9 -6 -11 -14 86 61 43 1023 1011 1005 16 16 16 24 14 37 0.00  
2 -4 -7 -9 -7 -9 -12 100 83 69 1037 1031 1023 16 16 16 8 2 - 0.00  
3 -3 -6 -8 -7 -9 -11 100 84 69 1037 1035 1032 16 16 16 8 2 - 0.00  
4 -4 -7 -8 -7 -9 -11 93 86 74 1032 1030 1028 16 16 16 8 2 - 0.00  
5 -4 -7 -9 -6 -8 -12 93 87 79 1035 1032 1028 16 16 16 11 3 - 0.00  
6 -6 -8 -10 -8 -10 -12 93 85 73 1037 1035 1025 16 16 16 8 5 - 0.00 Fog
7 -5 -7 -9 -7 -9 -12 93 85 79 1032 1029 1028 16 16 16 6 2 - 0.00  
8 -2 -6 -8 -3 -6 -10 93 87 80 1032 1031 1030 16 16 11 8 2 - 0.00  
9 1 -1 -2 -1 -2 -4 93 91 86 1031 1028 1027 16 13 1 0 0 - 0.00  
10 1 0 -1 0 -1 -2 100 90 87 1027 1022 1013 16 12 5 8 0 - 2.54 Fog , Rain , Snow
11 6 4 3 4 2 0 87 83 81 1002 999 997 16 9 5 13 6 - 0.00 Rain , Snow
12 5 3 1 2 1 -1 93 87 81 1010 1002 998 16 8 3 11 3 - 0.00 Rain , Snow
13 6 3 1 3 1 -1 87 85 81 1012 1004 1000 16 10 6 23 6 29 0.00 Rain , Snow
14 8 6 2 6 4 0 93 86 75 1003 992 987 16 12 8 23 10 40 0.00 Rain
15 2 1 1 -1 -1 -2 87 81 75 1013 1010 1007 16 12 5 14 6 34 0.00 Rain , Snow
16 2 1 0 1 -1 -3 93 90 70 1020 1012 999 16 8 4 11 5 - 0.00 Snow
17 1 -2 -4 0 -2 -5 93 91 87 1020 1013 1006 16 14 1 14 6 - 0.00 Snow
18 -3 -7 -9 -5 -7 -10 93 87 74 1031 1030 1027 16 16 16 14 10 - 0.00  
19 1 -3 -6 -1 -3 -7 93 90 86 1020 1010 1005 16 7 3 13 8 - 0.00 Rain , Snow
20 0 -1 -2 -1 -2 -4 93 90 80 1012 1006 999 16 9 2 6 2 - 0.00 Rain , Snow
21 0 -2 -2 -2 -3 -4 93 89 86 1015 1014 1010 16 14 5 0 0 - 0.00 Snow
22 4 3 2 2 1 1 100 89 81 1005 1001 999 16 8 2 11 5 - 0.00 Rain
23 4 3 2 2 0 -2 93 81 65 1022 1015 1008 16 14 1 16 5 27 0.00 Fog , Snow
24 3 2 1 1 0 -1 93 88 81 1026 1022 1013 16 13 8 10 2 - 0.00 Rain , Snow
25 4 2 1 3 2 0 93 93 87 1012 1011 1006 16 6 3 10 5 - 0.00 Rain
26 4 3 2 3 2 1 93 93 93 1006 1005 1003 4 2 0 8 2 - 0.00 Fog , Rain
27 4 3 2 3 2 1 93 93 87 1026 1019 1010 16 13 3 10 2 - 0.00 Fog , Rain
28 4 3 3 2 1 1 93 86 81 1027 1019 1009 16 13 8 23 6 40 0.00 Rain
29 3 2 2 2 2 1 93 93 93 1017 1016 1012 16 5 0 11 3 - 0.00 Fog , Rain
30 6 4 3 3 3 2 93 89 76 1010 1005 1000 16 10 4 14 3 - 0.00 Rain
31 7 4 3 3 3 2 93 91 76 1018 1016 1014 16 8 2 19 2 - 0.00 Rain