Weather History for Juneau, AK

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 39 °F 28 °F 16 °F
Mean Temperature 37 °F 24 °F 10 °F
Min Temperature 35 °F 20 °F 3 °F
Degree Days  
Heating Degree Days (base 65) 55 41 28 1262
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 36 °F 19 °F -3 °F
Precipitation  
Precipitation 0.81 in 0.15 in 0.00 in 3.87 in
Snowdepth 15.0 in 6.3 in 2.0 in -
Wind  
Wind 33 mph 7 mph 0 mph
Gust Wind 41 mph 27 mph 18 mph
Sea Level Pressure  
Sea Level Pressure 30.30 in 29.69 in 28.84 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 20, 2012 Rise Set
Actual Time 8:45 AM AKST 3:07 PM AKST
Civil Twilight 7:52 AM AKST 4:00 PM AKST
Nautical Twilight 6:59 AM AKST 4:53 PM AKST
Astronomical Twilight 6:10 AM AKST 5:42 PM AKST
Moon 11:37 AM AKST (12/20) 12:24 AM AKST (12/20)
Length of Visible Light 8h 07m
Length of Day
6h 21m
First Quarter, 56% of the Moon is Illuminated
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter

Weather History Calendar

Precipitation Actual month total 3.87 Normal Month Total: 5.84
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Snow
Actual:
21 | 11 0.08
Average:
35 | 27 0.20
Snow
Actual:
16 | 14 0.31
Average:
35 | 27 0.21
Snow
Actual:
35 | 12 0.22
Average:
35 | 27 0.20
Snow
Actual:
22 | 16 T
Average:
35 | 27 0.21
Snow
Actual:
25 | 20 0.03
Average:
35 | 27 0.20
Snow
Actual:
26 | 21 0.17
Average:
35 | 27 0.20
Snow
Actual:
27 | 21 T
Average:
35 | 27 0.20
Snow
Actual:
25 | 20 T
Average:
35 | 26 0.20
Snow
Actual:
36 | 29 0.11
Average:
35 | 26 0.20
Snow
Actual:
38 | 34 0.23
Average:
35 | 26 0.21
Snow
Actual:
32 | 21 0.03
Average:
35 | 26 0.20
Snow
Actual:
33 | 20 0.02
Average:
34 | 26 0.20
Snow
Actual:
39 | 33 0.05
Average:
34 | 26 0.20
Snow
Actual:
38 | 35 0.77
Average:
34 | 26 0.20
Snow
Actual:
38 | 32 0.13
Average:
34 | 26 0.19
Snow
Actual:
34 | 27 0.19
Average:
34 | 26 0.19
Partly Cloudy
Actual:
28 | 17 T
Average:
34 | 26 0.19
Partly Cloudy
Actual:
18 | 9 0.00
Average:
34 | 25 0.18
Overcast
Actual:
29 | 10 0.00
Average:
34 | 25 0.18
Partly Cloudy
Actual:
25 | 20 0.00
Average:
34 | 25 0.18
Scattered Clouds
Actual:
18 | 3 0.00
Average:
34 | 25 0.17
Partly Cloudy
Actual:
17 | 3 T
Average:
34 | 25 0.18
Snow
Actual:
17 | 6 0.00
Average:
34 | 25 0.18
Snow
Actual:
23 | 14 T
Average:
34 | 25 0.17
Partly Cloudy
Actual:
23 | 19 0.00
Average:
33 | 25 0.18
Scattered Clouds
Actual:
18 | 5 0.00
Average:
33 | 25 0.17
Snow
Actual:
31 | 6 0.21
Average:
33 | 25 0.17
Snow
Actual:
33 | 30 0.36
Average:
33 | 24 0.17
Rain
Actual:
35 | 32 0.01
Average:
33 | 24 0.17
Rain
Actual:
38 | 35 0.81
Average:
33 | 24 0.17
Rain
Actual:
38 | 34 0.14
Average:
33 | 24 0.17
 

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
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 21 16 11 12 8 3 80 63 45 29.50 29.43 29.36 10 5 1 17 5 20 0.08 Snow
2 16 15 14 13 11 10 88 84 80 29.36 29.31 29.29 3 2 1 6 1 7 0.31 Snow
3 35 24 12 16 13 11 88 83 77 29.56 29.49 29.36 10 5 1 7 1 10 0.22 Snow
4 22 19 16 17 15 14 91 81 71 29.53 29.36 29.26 10 10 7 7 0 7 T Snow
5 25 23 20 22 19 16 91 86 81 29.76 29.67 29.55 10 8 1 14 1 17 0.03 Snow
6 26 24 21 25 22 19 96 90 84 29.80 29.75 29.65 10 6 0 10 2 13 0.17 Fog , Snow
7 27 24 21 20 18 16 92 80 68 30.14 29.93 29.67 10 9 3 8 3 9 T Snow
8 25 23 20 29 22 18 96 89 81 30.20 30.08 29.78 10 7 1 6 1 6 T Snow
9 36 33 29 34 31 27 92 91 89 29.92 29.81 29.71 10 7 0 24 17 28 0.11 Fog , Rain , Snow
10 38 36 34 34 33 31 100 93 85 29.94 29.62 29.33 10 7 4 20 11 24 0.23 Rain , Snow
11 32 27 21 32 27 19 100 94 88 29.87 29.70 29.37 10 3 0 7 1 8 0.03 Fog , Rain , Snow
12 33 27 20 33 28 21 96 87 78 29.88 29.65 29.30 10 7 2 24 10 29 0.02 Rain , Snow
13 39 36 33 33 33 32 96 93 89 29.56 29.41 29.29 10 9 6 25 9 33 0.05 Rain , Snow
14 38 37 35 34 33 31 92 87 82 29.56 29.21 28.86 10 7 5 33 22 41 0.77 Rain , Snow
15 38 35 32 35 33 30 100 93 85 29.19 29.00 28.84 10 8 5 29 13 37 0.13 Rain , Snow
16 34 31 27 31 30 25 92 89 85 29.27 29.20 29.18 10 5 1 20 9 22 0.19 Snow
17 28 23 17 24 15 6 88 83 77 29.73 29.54 29.29 10 10 10 12 6 13 T  
18 18 14 9 14 9 6 92 88 83 29.74 29.60 29.38 10 10 10 5 0 5 0.00  
19 29 20 10 16 12 8 92 69 46 29.63 29.41 29.30 10 10 10 25 7 34 0.00  
20 25 23 20 8 5 0 59 52 45 30.01 29.85 29.65 10 10 10 22 10 31 0.00  
21 18 11 3 7 2 -2 87 65 43 30.08 30.03 29.97 10 10 10 23 3 30 0.00  
22 17 10 3 7 3 -3 91 72 53 29.97 29.89 29.83 10 10 10 9 2 11 T  
23 17 12 6 9 2 -1 91 69 47 30.00 29.90 29.84 10 10 3 16 4 20 0.00 Snow
24 23 19 14 15 10 4 84 65 45 30.12 30.05 29.98 10 9 2 15 5 19 T Snow
25 23 21 19 10 5 2 47 44 41 29.99 29.89 29.82 10 10 10 22 9 27 0.00  
26 18 12 5 12 7 2 92 86 80 29.94 29.91 29.85 10 10 10 7 0 7 0.00  
27 31 19 6 28 18 4 96 90 84 29.92 29.76 29.72 10 6 1 18 3 22 0.21 Snow
28 33 32 30 31 30 28 100 96 92 30.06 29.86 29.74 10 5 2 21 14 23 0.36 Snow
29 35 34 32 34 32 30 96 94 92 30.12 30.07 29.97 10 10 7 20 13 23 0.01 Rain
30 38 37 35 36 34 34 100 96 92 29.96 29.86 29.77 10 9 6 22 15 29 0.81 Rain
31 38 36 34 36 35 33 100 93 85 30.30 30.11 29.79 10 10 7 17 9 21 0.14 Rain