Weather History for Petersburg, AK

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Month of September, 2014

  Max Avg Min Sum
Temperature  
Max Temperature 69 °F 58 °F 53 °F
Mean Temperature 61 °F 53 °F 47 °F
Min Temperature 53 °F 47 °F 39 °F
Degree Days  
Heating Degree Days (base 65) 18 12 4 373
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 11 3 0 88
Dew Point  
Dew Point 59 °F 48 °F 34 °F
Precipitation  
Precipitation 1.41 in 0.20 in 0.00 in 6.02 in
Snowdepth - - - -
Wind  
Wind 14 mph 3 mph 0 mph
Gust Wind 29 mph 19 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.36 in 29.91 in 29.25 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 08, 2014 Rise Set
Actual Time 6:08 AM AKDT 7:28 PM AKDT
Civil Twilight 5:29 AM AKDT 8:07 PM AKDT
Nautical Twilight 4:41 AM AKDT 8:55 PM AKDT
Astronomical Twilight 3:46 AM AKDT 9:50 PM AKDT
Moon 7:04 PM AKDT (9/8) 5:44 AM AKDT (9/8)
Length of Visible Light 14h 38m
Length of Day
13h 19m
Full, 100% of the Moon is Illuminated
Sep 8
Full
Sep 8
Full
Sep 15
Last Quarter
Sep 23
New
Oct 1
First Quarter

Weather History Calendar

Precipitation Actual month total 6.02 Average Month Total: 20.69
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
55 | 48 0.12
Average:
56 | 45 0.58
Partly Cloudy
Actual:
59 | 48 0.00
Average:
55 | 45 0.59
Overcast
Actual:
57 | 48 0.00
Average:
55 | 44 0.59
Rain
Actual:
60 | 50 0.08
Average:
55 | 44 0.60
Overcast
Actual:
62 | 53 0.06
Average:
54 | 44 0.60
Mostly Cloudy
Actual:
60 | 51 1.05
Average:
54 | 44 0.61
Rain
Actual:
60 | 51 0.54
Average:
54 | 44 0.61
Partly Cloudy
Actual:
57 | 44 0.00
Average:
54 | 44 0.62
Clear
Actual:
55 | 39 0.00
Average:
54 | 43 0.63
Partly Cloudy
Actual:
64 | 42 0.00
Average:
53 | 43 1.83
Rain
Actual:
55 | 48 0.02
Average:
53 | 43 0.65
Partly Cloudy
Actual:
57 | 46 0.00
Average:
53 | 43 0.66
Fog
Actual:
62 | 44 0.00
Average:
53 | 43 0.66
Scattered Clouds
Actual:
60 | 44 0.00
Average:
53 | 43 0.67
Partly Cloudy
Actual:
55 | 44 0.00
Average:
53 | 43 0.68
Fog
Actual:
57 | 44 0.00
Average:
53 | 43 0.68
Fog
Actual:
57 | 48 0.00
Average:
53 | 43 0.69
Rain
Actual:
57 | 53 0.23
Average:
52 | 43 0.69
Rain
Actual:
57 | 51 0.37
Average:
52 | 43 0.69
Rain
Actual:
62 | 50 1.41
Average:
52 | 43 0.69
Rain
Actual:
69 | 53 0.26
Average:
52 | 43 0.68
Rain
Actual:
60 | 50 0.20
Average:
52 | 42 0.68
Fog
Actual:
55 | 44 0.00
Average:
51 | 42 0.68
Rain
Actual:
53 | 46 0.01
Average:
51 | 41 0.67
Rain
Actual:
53 | 48 0.00
Average:
51 | 41 0.67
Fog
Actual:
55 | 46 0.00
Average:
50 | 41 0.66
Overcast
Actual:
57 | 50 0.66
Average:
50 | 40 0.66
Rain
Actual:
57 | 51 1.01
Average:
50 | 40 0.66
Rain
Actual:
55 | 48 0.00
Average:
50 | 40 0.66
Rain
Actual:
55 | 41 0.00
Average:
50 | 40 0.65
 

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

2014 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 55 52 48 54 49 46 94 91 82 29.90 29.78 29.70 10 8 2 8 1 - 0.12 Fog , Rain
2 59 54 48 50 48 46 94 84 63 30.06 30.01 29.91 10 8 1 7 3 - 0.00  
3 57 52 48 50 48 46 93 82 72 30.18 30.13 30.06 10 10 2 6 1 - 0.00  
4 60 55 50 52 50 46 94 85 68 30.21 30.20 30.18 10 8 2 5 1 - 0.08 Rain
5 62 58 53 55 54 52 94 88 72 30.27 30.23 30.20 10 6 2 7 1 - 0.06  
6 60 56 51 52 51 48 94 90 72 30.20 30.05 29.90 10 8 3 8 3 - 1.05  
7 60 56 51 55 52 48 94 91 77 29.94 29.87 29.84 10 6 2 6 1 - 0.54 Rain
8 57 50 44 48 45 39 94 81 55 30.11 30.04 29.94 10 7 0 7 2 - 0.00  
9 55 47 39 45 41 37 93 78 63 30.28 30.22 30.13 10 10 10 7 3 - 0.00  
10 64 53 42 45 40 34 87 62 32 30.29 30.27 30.25 10 10 10 9 2 - 0.00  
11 55 52 48 50 47 41 93 84 58 30.35 30.31 30.27 10 8 3 5 1 - 0.02 Rain
12 57 52 46 48 46 45 94 80 67 30.36 30.29 30.20 10 10 1 7 2 - 0.00  
13 62 53 44 52 46 41 93 83 68 30.19 30.11 30.03 10 8 0 7 2 - 0.00 Fog
14 60 52 44 50 47 41 94 83 67 30.04 29.97 29.91 10 9 0 7 2 - 0.00  
15 55 50 44 50 46 43 100 88 77 29.93 29.91 29.88 10 7 0 7 2 - 0.00  
16 57 50 44 52 47 43 94 88 77 29.88 29.85 29.80 10 5 0 6 2 - 0.00 Fog
17 57 52 48 52 50 46 100 87 77 29.79 29.71 29.57 10 7 0 9 1 - 0.00 Fog
18 57 55 53 52 50 48 94 83 77 29.57 29.40 29.25 10 9 3 14 4 24 0.23 Rain
19 57 54 51 52 50 46 88 83 72 29.94 29.78 29.45 10 9 5 13 5 18 0.37 Rain
20 62 56 50 55 52 46 100 88 72 29.87 29.75 29.67 10 6 3 14 6 29 1.41 Rain
21 69 61 53 59 53 46 94 79 52 29.69 29.52 29.40 10 9 3 14 4 22 0.26 Rain
22 60 55 50 52 48 46 94 82 59 29.89 29.82 29.69 10 10 5 10 3 - 0.20 Rain
23 55 50 44 46 45 43 93 85 67 29.89 29.72 29.53 10 10 2 8 3 - 0.00 Fog
24 53 50 46 46 45 43 93 86 72 29.89 29.57 29.49 10 10 8 6 2 - 0.01 Rain
25 53 50 48 48 47 45 93 89 82 29.86 29.79 29.70 10 9 3 7 3 - 0.00 Rain
26 55 50 46 48 45 45 93 86 72 29.89 29.87 29.85 10 8 0 6 3 - 0.00 Fog
27 57 54 50 52 50 46 94 86 82 29.87 29.80 29.64 10 8 3 14 4 26 0.66  
28 57 54 51 54 51 48 94 90 77 29.65 29.58 29.26 10 6 1 10 4 21 1.01 Rain
29 55 52 48 48 47 45 93 82 67 29.80 29.71 29.64 10 9 2 7 1 - 0.00 Fog , Rain
30 55 48 41 46 41 37 93 73 51 29.99 29.91 29.80 10 10 7 13 5 18 0.00 Fog , Rain