Weather History for Somerville, NJ

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Month of December, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 68 °F 42 °F 27 °F
Mean Temperature 52 °F 33 °F 21 °F
Min Temperature 46 °F 23 °F 10 °F
Degree Days  
Heating Degree Days (base 65) 44 32 12 1001
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 2 0 0 2
Dew Point  
Dew Point 61 °F 26 °F 3 °F
Precipitation  
Precipitation 1.15 in 0.11 in 0.00 in 3.47 in
Snowdepth - - - -
Wind  
Wind 17 mph 3 mph 0 mph
Gust Wind 32 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.58 in 30.10 in 29.44 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 21, 2013 Rise Set
Actual Time 7:19 AM EST 4:34 PM EST
Civil Twilight 6:48 AM EST 5:05 PM EST
Nautical Twilight 6:13 AM EST 5:40 PM EST
Astronomical Twilight 5:40 AM EST 6:13 PM EST
Moon 8:50 PM EST (12/21) 9:42 AM EST (12/21)
Length of Visible Light 10h 17m
Length of Day
9h 15m
Waning Gibbous, 84% of the Moon is Illuminated
Dec 21
Waning Gibbous
Dec 25
Last Quarter
Jan 1
New
Jan 7
First Quarter
Jan 15
Full

Weather History Calendar

Precipitation Actual month total 3.47 Average Month Total: 3.61
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Mostly Cloudy
Actual:
48 | 34 0.00
Average:
46 | 26 0.07
Partly Cloudy
Actual:
48 | 28 0.00
Average:
45 | 25 0.16
Partly Cloudy
Actual:
54 | 28 0.00
Average:
46 | 26 0.17
Partly Cloudy
Actual:
51 | 28 0.00
Average:
45 | 25 0.20
Rain
Actual:
55 | 46 0.03
Average:
44 | 25 0.13
Rain
Actual:
54 | 37 1.15
Average:
42 | 26 0.11
Rain
Actual:
39 | 27 0.08
Average:
46 | 26 0.10
Snow
Actual:
32 | 19 0.00
Average:
44 | 26 0.06
Rain
Actual:
36 | 28 0.22
Average:
43 | 26 0.13
Snow
Actual:
33 | 19 0.09
Average:
43 | 26 0.12
Clear
Actual:
32 | 19 0.00
Average:
43 | 26 0.11
Scattered Clouds
Actual:
27 | 16 0.00
Average:
41 | 25 0.13
Scattered Clouds
Actual:
35 | 10 0.00
Average:
42 | 25 0.09
Snow
Actual:
28 | 19 0.00
Average:
42 | 26 0.19
Rain
Actual:
39 | 28 0.26
Average:
41 | 23 0.13
Snow
Actual:
30 | 12 0.00
Average:
42 | 25 0.14
Snow
Actual:
28 | 14 0.00
Average:
43 | 24 0.20
Partly Cloudy
Actual:
36 | 10 0.00
Average:
40 | 23 0.07
Clear
Actual:
43 | 10 0.00
Average:
37 | 20 0.08
Rain
Actual:
50 | 26 0.00
Average:
37 | 21 0.05
Scattered Clouds
Actual:
59 | 30 0.00
Average:
39 | 22 0.17
Rain
Actual:
68 | 37 0.00
Average:
40 | 22 0.15
Rain
Actual:
59 | 39 0.64
Average:
38 | 22 0.10
Snow
Actual:
39 | 25 0.00
Average:
39 | 21 0.10
Clear
Actual:
27 | 18 0.00
Average:
39 | 20 0.16
Snow
Actual:
35 | 19 0.00
Average:
36 | 20 0.06
Scattered Clouds
Actual:
41 | 17 0.00
Average:
36 | 19 0.09
Scattered Clouds
Actual:
55 | 17 0.00
Average:
35 | 20 0.08
Rain
Actual:
43 | 28 1.00
Average:
40 | 23 0.12
Partly Cloudy
Actual:
44 | 23 0.00
Average:
39 | 22 0.04
Snow
Actual:
30 | 16 0.00
Average:
37 | 19 0.10
 

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
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 48 41 34 31 30 28 85 69 46 30.07 30.05 30.02 10 10 10 4 1 - 0.00  
2 48 39 28 32 30 27 96 76 48 30.01 29.94 29.88 10 9 6 5 0 - 0.00  
3 54 41 28 35 30 26 96 78 43 30.01 29.93 29.88 10 7 4 7 2 - 0.00  
4 51 40 28 42 36 27 92 80 63 30.12 30.09 30.02 8 6 3 4 1 - 0.00  
5 55 50 46 55 49 42 100 96 83 30.11 30.02 29.93 7 1 0 5 1 - 0.03 Fog , Rain
6 54 46 37 54 43 35 100 92 82 30.16 30.01 29.87 10 4 0 13 4 20 1.15 Fog , Rain
7 39 33 27 35 27 16 93 75 55 30.52 30.32 30.10 10 10 4 16 6 22 0.08 Rain
8 32 26 19 27 22 14 93 79 50 30.58 30.48 30.35 10 6 0 8 4 - 0.00 Fog , Rain , Snow
9 36 32 28 35 31 27 100 93 87 30.33 30.10 29.97 10 4 0 12 5 - 0.22 Fog , Rain
10 33 26 19 32 29 16 100 92 74 30.15 29.97 29.89 10 3 0 7 2 - 0.09 Fog , Snow
11 32 26 19 18 15 13 85 64 50 30.35 30.26 30.17 10 10 10 8 2 - 0.00  
12 27 22 16 15 7 3 72 53 39 30.38 30.28 30.18 10 10 10 13 6 20 0.00  
13 35 22 10 19 13 6 85 68 42 30.34 30.21 30.16 10 10 10 14 2 23 0.00  
14 28 24 19 25 19 17 92 82 63 30.48 30.24 29.76 10 4 0 14 6 23 0.00 Fog , Rain , Snow
15 39 34 28 32 28 18 96 81 54 29.85 29.64 29.53 10 8 2 13 8 22 0.26 Rain
16 30 21 12 21 10 5 84 57 38 30.24 30.09 29.85 10 10 9 14 6 25 0.00 Snow
17 28 21 14 25 19 10 93 86 74 30.22 30.06 29.94 10 5 0 8 2 - 0.00 Fog , Rain , Snow
18 36 23 10 21 16 8 92 76 52 30.20 30.07 29.96 10 9 6 15 4 22 0.00  
19 43 26 10 27 19 7 89 76 47 30.20 30.12 30.04 10 9 5 5 1 - 0.00  
20 50 38 26 32 28 24 92 76 44 30.10 30.04 29.97 10 10 6 5 1 - 0.00 Rain
21 59 44 30 47 36 29 96 84 64 30.00 29.96 29.91 10 10 10 6 1 - 0.00  
22 68 52 37 61 53 35 93 82 70 29.94 29.87 29.80 10 10 9 10 3 21 0.00 Rain
23 59 50 39 59 51 27 100 93 60 30.16 29.97 29.89 10 5 0 17 3 32 0.64 Fog , Rain
24 39 32 25 27 21 9 88 60 45 30.37 30.20 30.12 10 9 2 17 9 25 0.00 Snow
25 27 22 18 14 8 4 60 51 41 30.54 30.48 30.39 10 10 10 14 7 23 0.00  
26 35 27 19 25 21 16 92 79 67 30.41 30.26 30.17 10 9 1 7 2 - 0.00 Snow
27 41 29 17 23 18 13 92 73 43 30.37 30.32 30.28 10 9 6 9 1 - 0.00  
28 55 36 17 27 22 15 92 70 31 30.29 30.17 30.08 10 10 9 6 1 18 0.00  
29 43 36 28 41 35 25 97 90 78 30.07 29.70 29.44 10 6 1 12 3 20 1.00 Rain
30 44 34 23 36 25 10 100 71 49 30.19 29.98 29.73 10 10 2 13 4 22 0.00  
31 30 23 16 25 15 8 85 65 47 30.30 30.16 30.07 10 8 1 12 4 21 0.00 Snow