Weather History for St. Johnsbury, VT

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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 49 °F 34 °F 16 °F
Mean Temperature 43 °F 26 °F 9 °F
Min Temperature 37 °F 18 °F 0 °F
Degree Days  
Heating Degree Days (base 65) 56 39 22 1195
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 44 °F 21 °F -5 °F
Precipitation  
Precipitation 0.56 in 0.10 in 0.00 in 3.14 in
Snowdepth - - - -
Wind  
Wind - - -
Gust Wind - - -
Sea Level Pressure  
Sea Level Pressure 30.68 in 30.12 in 29.21 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 17, 2011 Rise Set
Actual Time 7:18 AM EST 4:09 PM EST
Civil Twilight 6:45 AM EST 4:43 PM EST
Nautical Twilight 6:08 AM EST 5:19 PM EST
Astronomical Twilight 5:32 AM EST 5:55 PM EST
Moon No Moon Rise 11:16 AM EST (12/17)
Length of Visible Light 9h 57m
Length of Day
8h 51m
Waning Gibbous, 54% of the Moon is Illuminated
Dec 17
Waning Gibbous
Dec 17
Last Quarter
Dec 24
New
Jan 1
First Quarter
Jan 9
Full

Weather History Calendar

Precipitation Actual month total 3.14 Normal Month Total: 3.08
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Clear
Actual:
37 | 24 0.00
Average:
37 | 22 0.11
Clear
Actual:
37 | 22 0.00
Average:
37 | 21 0.10
Clear
Actual:
39 | 23 0.00
Average:
36 | 21 0.11
Clear
Actual:
47 | 22 0.00
Average:
36 | 20 0.11
Clear
Actual:
49 | 36 0.00
Average:
35 | 20 0.11
Clear
Actual:
45 | 37 0.29
Average:
35 | 19 0.11
Clear
Actual:
39 | 32 0.46
Average:
34 | 19 0.11
Clear
Actual:
33 | 22 0.24
Average:
34 | 18 0.10
Clear
Actual:
35 | 26 0.00
Average:
34 | 18 0.11
Clear
Actual:
34 | 19 0.01
Average:
33 | 17 0.11
Clear
Actual:
31 | 16 0.00
Average:
33 | 17 0.11
Clear
Actual:
41 | 16 0.00
Average:
33 | 16 0.10
Clear
Actual:
34 | 14 0.00
Average:
32 | 16 0.10
Clear
Actual:
36 | 31 0.00
Average:
32 | 15 0.10
Clear
Actual:
45 | 33 0.36
Average:
32 | 15 0.10
Clear
Actual:
37 | 31 0.24
Average:
31 | 14 0.10
Clear
Actual:
31 | 12 0.00
Average:
31 | 14 0.10
Clear
Actual:
20 | 5 0.00
Average:
31 | 14 0.10
Clear
Actual:
36 | 5 0.04
Average:
30 | 13 0.09
Clear
Actual:
35 | 10 0.00
Average:
30 | 13 0.09
Clear
Actual:
33 | 9 0.41
Average:
30 | 12 0.10
Clear
Actual:
41 | 30 0.00
Average:
30 | 12 0.09
Clear
Actual:
36 | 15 0.29
Average:
29 | 11 0.09
Clear
Actual:
16 | 1 0.00
Average:
29 | 11 0.09
Clear
Actual:
24 | 0 0.04
Average:
29 | 11 0.10
Clear
Actual:
29 | 13 0.01
Average:
29 | 10 0.09
Clear
Actual:
35 | 7 0.56
Average:
29 | 10 0.09
Clear
Actual:
39 | 12 0.13
Average:
28 | 10 0.09
Clear
Actual:
20 | 5 0.00
Average:
28 | 9 0.09
Clear
Actual:
21 | 3 0.03
Average:
28 | 9 0.09
Clear
Actual:
33 | 21 0.03
Average:
28 | 9 0.09
 

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

2011 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 37 31 24 27 23 20 92 72 52 30.31 30.17 29.89 - - - - - - 0.00  
2 37 30 22 31 25 20 100 82 64 30.51 30.33 30.24 - - - - - - 0.00  
3 39 31 23 26 21 17 88 64 40 30.68 30.60 30.53 - - - - - - 0.00  
4 47 35 22 35 27 20 88 71 53 30.54 30.41 30.29 - - - - - - 0.00  
5 49 43 36 38 36 33 92 79 66 30.30 30.24 30.12 - - - - - - 0.00  
6 45 41 37 44 40 36 100 93 86 30.10 30.01 29.96 - - - - - - 0.29  
7 39 36 32 37 36 32 100 96 92 29.95 29.81 29.62 - - - - - - 0.46  
8 33 28 22 32 25 20 100 82 63 30.18 29.89 29.57 - - - - - - 0.24  
9 35 31 26 29 27 24 100 88 75 30.28 30.21 30.15 - - - - - - 0.00  
10 34 27 19 30 21 13 92 71 49 30.42 30.26 30.12 - - - - - - 0.01  
11 31 24 16 19 17 14 92 73 53 30.59 30.51 30.42 - - - - - - 0.00  
12 41 29 16 26 19 14 92 70 47 30.54 30.47 30.42 - - - - - - 0.00  
13 34 24 14 29 20 12 92 77 61 30.44 30.39 30.35 - - - - - - 0.00  
14 36 34 31 33 31 29 100 91 82 30.41 30.35 30.22 - - - - - - 0.00  
15 45 39 33 43 36 29 100 88 75 30.20 29.88 29.54 - - - - - - 0.36  
16 37 34 31 44 31 25 96 83 69 30.03 29.83 29.51 - - - - - - 0.24  
17 31 22 12 25 13 5 81 70 59 30.25 30.15 30.01 - - - - - - 0.00  
18 20 13 5 6 3 -4 88 62 35 30.33 30.28 30.24 - - - - - - 0.00  
19 36 21 5 31 14 2 92 73 53 30.24 29.96 29.77 - - - - - - 0.04  
20 35 23 10 27 13 7 92 69 46 30.22 30.13 29.86 - - - - - - 0.00  
21 33 21 9 32 22 6 100 90 80 30.18 29.91 29.60 - - - - - - 0.41  
22 41 36 30 36 32 29 100 83 65 30.09 29.94 29.59 - - - - - - 0.00  
23 36 26 15 32 25 8 100 87 73 30.27 30.04 29.92 - - - - - - 0.29  
24 16 9 1 7 1 -3 91 71 51 30.54 30.46 30.29 - - - - - - 0.00  
25 24 12 0 21 11 -3 96 90 83 30.49 30.18 29.87 - - - - - - 0.04  
26 29 21 13 23 18 10 96 80 63 30.23 30.10 29.86 - - - - - - 0.01  
27 35 21 7 34 18 5 100 86 72 30.14 29.84 29.30 - - - - - - 0.56  
28 39 26 12 35 22 4 100 84 67 29.68 29.37 29.21 - - - - - - 0.13  
29 20 13 5 4 -1 -5 88 64 39 30.06 29.90 29.70 - - - - - - 0.00  
30 21 12 3 18 8 -1 91 86 80 30.17 30.12 30.07 - - - - - - 0.03  
31 33 27 21 32 26 19 92 88 84 30.08 29.95 29.85 - - - - - - 0.03