Weather History for Petersburg, AK

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Month of July, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 73 °F 62 °F 55 °F
Mean Temperature 64 °F 57 °F 52 °F
Min Temperature 55 °F 51 °F 44 °F
Degree Days  
Heating Degree Days (base 65) 14 9 1 265
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 14 7 2 206
Dew Point  
Dew Point 55 °F 50 °F 43 °F
Precipitation  
Precipitation 0.18 in 0.02 in 0.00 in 0.50 in
Snowdepth - - - -
Wind  
Wind 14 mph 2 mph 0 mph
Gust Wind 21 mph 18 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.31 in 30.11 in 29.89 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Jul. 10, 2013 Rise Set
Actual Time 4:14 AM AKDT 9:39 PM AKDT
Civil Twilight 3:13 AM AKDT 10:40 PM AKDT
Nautical Twilight 1:29 AM AKDT 12:24 AM AKDT
Astronomical Twilight Sun does not rise Sun does not rise
Moon 7:25 AM AKDT (7/10) 10:03 PM AKDT (7/10)
Length of Visible Light 19h 27m
Length of Day
17h 24m
Waxing Crescent, 6% of the Moon is Illuminated
Jul 10
Waxing Crescent
Jul 15
First Quarter
Jul 22
Full
Jul 29
Last Quarter
Aug 6
New

Weather History Calendar

Precipitation Actual month total 0.50 Average Month Total: 7.83
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
68 | 55 0.13
Average:
59 | 47 0.21
Overcast
Actual:
60 | 51 0.00
Average:
59 | 47 0.21
Rain
Actual:
57 | 51 0.05
Average:
59 | 47 0.22
Fog
Actual:
62 | 51 0.00
Average:
59 | 47 0.22
Mostly Cloudy
Actual:
60 | 51 0.00
Average:
59 | 47 0.22
Partly Cloudy
Actual:
59 | 51 0.00
Average:
59 | 47 0.23
Partly Cloudy
Actual:
68 | 44 0.00
Average:
59 | 47 0.23
Mostly Cloudy
Actual:
59 | 53 0.18
Average:
59 | 47 0.24
Rain
Actual:
55 | 50 0.00
Average:
59 | 47 0.24
Rain
Actual:
60 | 48 0.00
Average:
59 | 47 0.25
Rain
Actual:
55 | 48 0.00
Average:
59 | 47 0.25
Rain
Actual:
55 | 51 0.00
Average:
59 | 47 0.26
Rain
Actual:
55 | 50 0.00
Average:
59 | 47 0.26
Fog
Actual:
64 | 48 0.00
Average:
59 | 48 0.26
Fog
Actual:
62 | 44 0.00
Average:
59 | 48 0.27
Clear
Actual:
64 | 46 0.00
Average:
59 | 48 0.27
Scattered Clouds
Actual:
73 | 51 0.00
Average:
59 | 48 0.26
Partly Cloudy
Actual:
62 | 53 0.00
Average:
59 | 48 0.26
Rain
Actual:
60 | 53 0.00
Average:
59 | 48 0.26
Overcast
Actual:
62 | 53 0.00
Average:
59 | 48 0.26
Overcast
Actual:
57 | 53 0.02
Average:
59 | 48 0.25
Mostly Cloudy
Actual:
60 | 51 0.00
Average:
59 | 48 0.24
Rain
Actual:
60 | 51 0.06
Average:
59 | 48 0.23
Rain
Actual:
62 | 53 0.00
Average:
59 | 48 0.78
Rain
Actual:
64 | 53 0.06
Average:
59 | 48 0.22
Fog
Actual:
60 | 51 0.00
Average:
59 | 48 0.21
Mostly Cloudy
Actual:
60 | 51 0.00
Average:
59 | 48 0.21
Scattered Clouds
Actual:
69 | 48 0.00
Average:
59 | 48 0.21
Scattered Clouds
Actual:
73 | 51 0.00
Average:
60 | 48 0.20
Clear
Actual:
73 | 53 0.00
Average:
60 | 48 0.20
Clear
Actual:
73 | 55 0.00
Average:
60 | 48 0.20
 

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
Jul high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 68 62 55 55 51 46 94 73 49 30.04 30.00 29.96 10 10 4 13 3 18 0.13  
2 60 56 51 46 45 43 82 64 52 30.17 30.13 30.06 10 10 10 9 3 - 0.00  
3 57 54 51 54 49 46 94 83 72 30.20 30.18 30.16 10 10 7 6 2 - 0.05 Rain
4 62 56 51 52 48 43 94 79 52 30.23 30.20 30.17 10 8 1 12 2 - 0.00 Fog
5 60 56 51 48 46 45 82 70 59 30.24 30.22 30.19 10 10 10 10 3 - 0.00  
6 59 56 51 50 48 45 77 75 72 30.19 30.13 30.08 10 10 10 6 2 - 0.00  
7 68 56 44 50 47 43 93 71 49 30.08 30.05 29.98 10 10 10 9 5 - 0.00  
8 59 56 53 54 51 43 94 83 67 30.09 29.99 29.95 10 7 3 14 5 21 0.18  
9 55 52 50 48 47 45 88 81 76 30.14 30.11 30.02 10 10 10 6 2 - 0.00 Rain
10 60 54 48 48 46 45 93 76 59 29.97 29.93 29.90 10 10 10 8 3 - 0.00 Rain
11 55 52 48 50 47 45 88 80 72 29.94 29.91 29.89 10 10 10 6 1 - 0.00 Rain
12 55 53 51 52 50 48 94 90 88 30.06 30.01 29.96 10 5 2 6 1 - 0.00 Fog , Rain
13 55 53 50 52 49 46 94 89 82 30.25 30.15 30.09 10 8 3 8 2 - 0.00 Fog , Rain
14 64 56 48 48 47 46 93 79 52 30.31 30.29 30.24 10 10 10 8 2 - 0.00 Fog
15 62 53 44 50 47 43 93 77 59 30.27 30.24 30.17 10 9 0 9 2 - 0.00 Fog
16 64 55 46 52 49 45 93 71 56 30.17 30.10 30.01 10 10 10 8 3 - 0.00  
17 73 62 51 54 51 46 88 63 49 30.03 29.99 29.96 10 10 10 8 4 - 0.00  
18 62 58 53 54 51 48 88 76 63 30.25 30.20 30.05 10 10 10 12 3 17 0.00  
19 60 56 53 54 52 50 94 81 72 30.24 30.19 30.12 10 10 9 6 1 - 0.00 Rain
20 62 58 53 55 53 50 94 83 72 30.13 30.07 30.01 10 10 5 8 1 - 0.00  
21 57 55 53 54 52 50 94 88 77 30.01 29.98 29.97 10 9 5 8 3 - 0.02  
22 60 56 51 54 52 48 94 85 72 30.08 30.05 30.01 10 9 3 7 2 - 0.00  
23 60 56 51 55 51 48 94 83 72 30.09 30.07 30.05 10 10 4 6 3 - 0.06 Fog , Rain
24 62 58 53 55 53 52 100 89 72 30.10 30.09 30.07 10 7 0 6 2 - 0.00 Fog , Rain
25 64 58 53 54 53 50 94 87 68 30.21 30.17 30.11 10 9 5 7 2 - 0.06 Fog , Rain
26 60 56 51 55 52 50 94 88 72 30.30 30.25 30.21 10 7 0 8 1 - 0.00 Fog
27 60 56 51 52 50 48 94 81 72 30.30 30.26 30.20 10 10 10 6 2 - 0.00  
28 69 58 48 54 50 46 93 77 56 30.20 30.16 30.10 10 10 0 9 3 - 0.00  
29 73 62 51 54 51 48 88 65 44 30.12 30.10 30.05 10 10 10 8 3 - 0.00  
30 73 63 53 54 51 48 88 64 47 30.15 30.13 30.09 10 10 10 7 3 - 0.00  
31 73 64 55 55 53 48 82 63 50 30.17 30.13 30.07 10 10 10 7 3 - 0.00