Weather History for Sitka, AK

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 63 °F 56 °F 48 °F
Mean Temperature 56 °F 52 °F 46 °F
Min Temperature 53 °F 48 °F 43 °F
Degree Days  
Heating Degree Days (base 65) 19 13 8 404
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 6 2 0 55
Dew Point  
Dew Point 57 °F 49 °F 39 °F
Precipitation  
Precipitation 2.30 in 0.55 in 0.00 in 16.55 in
Snowdepth - - - -
Wind  
Wind 37 mph 7 mph 0 mph
Gust Wind 52 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.43 in 30.01 in 29.27 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 11, 2012 Rise Set
Actual Time 6:25 AM AKDT 7:28 PM AKDT
Civil Twilight 5:46 AM AKDT 8:07 PM AKDT
Nautical Twilight 4:58 AM AKDT 8:55 PM AKDT
Astronomical Twilight 4:04 AM AKDT 9:48 PM AKDT
Moon 1:04 AM AKDT (9/11) 5:21 PM AKDT (9/11)
Length of Visible Light 14h 21m
Length of Day
13h 03m
Waning Crescent, 20% of the Moon is Illuminated
Sep 11
Waning Crescent
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
Oct 7
Last Quarter

Weather History Calendar

Precipitation Actual month total 16.55 Average Month Total: 11.38
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
55 | 46 0.49
Average:
60 | 49 0.58
Rain
Actual:
57 | 53 0.35
Average:
59 | 49 0.35
Rain
Actual:
57 | 51 0.74
Average:
60 | 50 0.43
Rain
Actual:
57 | 51 0.19
Average:
59 | 50 0.48
Rain
Actual:
54 | 48 0.45
Average:
59 | 49 0.27
Rain
Actual:
55 | 46 0.02
Average:
59 | 48 0.35
Rain
Actual:
57 | 45 0.62
Average:
59 | 48 0.42
Rain
Actual:
55 | 48 1.43
Average:
58 | 48 0.44
Rain
Actual:
55 | 46 1.20
Average:
58 | 48 0.33
Rain
Actual:
57 | 46 0.02
Average:
58 | 48 0.48
Rain
Actual:
53 | 48 0.73
Average:
58 | 48 0.26
Rain
Actual:
54 | 51 2.30
Average:
59 | 48 0.31
Rain
Actual:
55 | 50 1.73
Average:
59 | 48 0.23
Rain
Actual:
57 | 48 0.14
Average:
58 | 48 0.62
Rain
Actual:
54 | 48 0.12
Average:
58 | 48 0.34
Rain
Actual:
55 | 48 0.03
Average:
58 | 47 0.26
Rain
Actual:
55 | 46 1.47
Average:
58 | 46 0.32
Partly Cloudy
Actual:
55 | 43 0.00
Average:
57 | 47 0.34
Rain
Actual:
55 | 44 0.03
Average:
57 | 47 0.39
Partly Cloudy
Actual:
62 | 51 0.00
Average:
57 | 47 0.26
Fog
Actual:
63 | 51 0.00
Average:
57 | 47 0.35
Rain
Actual:
60 | 51 0.41
Average:
57 | 46 0.39
Rain
Actual:
59 | 52 0.17
Average:
56 | 46 0.29
Rain
Actual:
55 | 46 0.16
Average:
56 | 46 0.26
Rain
Actual:
55 | 46 0.17
Average:
55 | 45 0.25
Rain
Actual:
59 | 48 0.68
Average:
56 | 45 0.22
Thunderstorm
Actual:
55 | 48 0.61
Average:
55 | 46 0.38
Thunderstorm
Actual:
53 | 46 1.26
Average:
54 | 46 0.65
Rain
Actual:
48 | 44 0.87
Average:
55 | 47 0.62
Rain
Actual:
50 | 43 0.16
Average:
54 | 46 0.51
 

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

2012 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 50 46 53 49 41 100 88 66 29.94 29.87 29.81 10 7 2 18 8 24 0.49 Rain
2 57 54 53 54 51 47 100 92 72 30.10 30.07 29.96 10 7 2 14 8 - 0.35 Rain
3 57 54 51 56 53 52 100 98 88 30.12 30.10 30.07 10 5 2 13 8 - 0.74 Rain
4 57 54 51 55 52 50 100 95 80 30.31 30.20 30.07 10 8 2 17 8 20 0.19 Rain
5 54 51 48 54 52 46 100 98 86 30.32 30.25 30.20 10 5 1 10 5 - 0.45 Rain
6 55 52 46 54 49 46 100 92 74 30.38 30.33 30.24 10 9 6 15 6 - 0.02 Rain
7 57 51 45 56 51 45 100 94 69 30.38 30.13 30.03 10 6 2 26 10 36 0.62 Rain
8 55 52 48 56 53 48 100 99 93 30.04 29.69 29.52 10 5 1 17 6 22 1.43 Rain
9 55 50 46 48 47 45 100 92 74 29.64 29.52 29.41 10 8 2 13 6 - 1.20 Rain
10 57 52 46 50 48 45 100 91 74 30.01 29.85 29.66 10 10 4 10 6 - 0.02 Rain
11 53 50 48 52 48 44 100 91 77 30.09 30.03 29.96 10 8 2 16 7 18 0.73 Rain
12 54 52 51 54 53 51 100 100 94 30.01 29.94 29.83 10 4 1 14 8 - 2.30 Rain
13 55 52 50 54 51 45 100 97 82 29.96 29.74 29.45 10 5 1 26 8 33 1.73 Rain
14 57 52 48 52 49 48 100 91 82 30.28 30.13 29.93 10 10 4 16 11 - 0.14 Rain
15 54 51 48 52 50 48 100 97 86 30.43 30.37 30.30 10 7 2 9 6 - 0.12 Rain
16 55 52 48 49 47 45 100 84 69 30.40 30.32 30.19 10 10 4 16 7 24 0.03 Rain
17 55 50 46 54 51 45 100 94 72 30.23 30.12 30.06 10 6 1 16 8 - 1.47 Rain
18 55 48 43 48 46 43 100 90 77 30.29 30.26 30.24 10 10 10 8 2 - 0.00  
19 55 50 44 52 48 44 100 89 77 30.30 30.26 30.24 10 9 2 7 2 - 0.03 Rain
20 62 56 51 57 54 50 100 96 87 30.26 30.14 29.99 10 10 9 6 3 - 0.00  
21 63 56 51 57 54 52 100 98 84 30.04 30.00 29.97 10 5 0 10 2 - 0.00 Fog
22 60 56 51 54 51 47 100 88 64 30.02 29.96 29.90 10 10 5 17 6 24 0.41 Rain
23 59 54 52 55 52 48 100 89 70 30.09 30.01 29.92 10 8 2 17 9 25 0.17 Rain
24 55 50 46 52 49 46 100 94 82 30.24 30.19 30.11 10 8 2 10 6 - 0.16 Rain
25 55 50 46 49 46 43 100 83 67 30.19 29.99 29.83 10 10 3 23 8 32 0.17 Rain
26 59 52 48 54 47 39 97 78 53 29.93 29.68 29.27 10 9 2 32 11 43 0.68 Rain
27 55 52 48 54 45 43 94 80 66 29.68 29.53 29.32 10 7 2 37 18 52 0.61 Rain , Thunderstorm
28 53 50 46 48 46 45 100 88 76 29.86 29.77 29.68 10 8 2 14 9 24 1.26 Rain , Thunderstorm
29 48 46 44 46 44 41 93 89 82 30.07 29.94 29.86 10 8 2 14 8 17 0.87 Rain
30 50 46 43 46 43 41 97 86 74 30.14 30.05 29.84 10 9 2 8 5 - 0.16 Rain