Weather History for Chapel Hill, NC

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Month of December, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 77 °F 56 °F 37 °F
Mean Temperature 72 °F 46 °F 30 °F
Min Temperature 66 °F 36 °F 23 °F
Degree Days  
Heating Degree Days (base 65) 35 20 0 605
Cooling Degree Days (base 65) 6 0 0 11
Growing Degree Days (base 50) 22 3 0 83
Dew Point  
Dew Point 65 °F 36 °F 7 °F
Precipitation  
Precipitation 1.59 in 0.15 in 0.00 in 4.80 in
Snowdepth - - - -
Wind  
Wind 14 mph 3 mph 0 mph
Gust Wind 26 mph 19 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.57 in 30.16 in 29.73 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 23, 2013 Rise Set
Actual Time 7:23 AM EST 5:07 PM EST
Civil Twilight 6:55 AM EST 5:35 PM EST
Nautical Twilight 6:23 AM EST 6:07 PM EST
Astronomical Twilight 5:52 AM EST 6:39 PM EST
Moon 11:04 PM EST (12/23) 10:58 AM EST (12/23)
Length of Visible Light 10h 40m
Length of Day
9h 43m
Waning Gibbous, 68% of the Moon is Illuminated
Dec 23
Waning Gibbous
Dec 25
Last Quarter
Jan 1
New
Jan 7
First Quarter
Jan 15
Full

Weather History Calendar

Precipitation Actual month total 4.80 Average Month Total: 3.26
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Scattered Clouds
Actual:
59 | 28 0.00
Average:
54 | 31 0.09
Partly Cloudy
Actual:
60 | 36 0.00
Average:
56 | 32 0.06
Rain
Actual:
55 | 34 0.00
Average:
57 | 32 0.07
Rain
Actual:
62 | 50 0.00
Average:
55 | 31 0.12
Rain
Actual:
66 | 55 0.05
Average:
55 | 29 0.07
Partly Cloudy
Actual:
77 | 66 0.01
Average:
56 | 29 0.12
Rain
Actual:
70 | 43 0.19
Average:
57 | 30 0.07
Rain
Actual:
42 | 33 0.08
Average:
55 | 31 0.14
Rain
Actual:
45 | 34 0.20
Average:
55 | 33 0.14
Rain
Actual:
48 | 28 0.41
Average:
55 | 31 0.08
Clear
Actual:
48 | 26 0.00
Average:
53 | 31 0.15
Clear
Actual:
43 | 27 0.00
Average:
52 | 30 0.16
Clear
Actual:
50 | 24 0.00
Average:
53 | 30 0.12
Rain
Actual:
46 | 37 0.74
Average:
54 | 32 0.12
Rain
Actual:
53 | 32 0.02
Average:
53 | 30 0.13
Clear
Actual:
55 | 28 0.00
Average:
53 | 31 0.25
Scattered Clouds
Actual:
60 | 32 0.00
Average:
52 | 30 0.12
Clear
Actual:
48 | 30 0.00
Average:
50 | 26 0.03
Clear
Actual:
62 | 28 0.00
Average:
50 | 26 0.04
Scattered Clouds
Actual:
66 | 43 0.00
Average:
51 | 28 0.03
Scattered Clouds
Actual:
73 | 45 0.00
Average:
50 | 31 0.13
Rain
Actual:
77 | 63 0.27
Average:
49 | 28 0.16
Rain
Actual:
66 | 45 1.24
Average:
50 | 28 0.08
Partly Cloudy
Actual:
46 | 28 0.00
Average:
51 | 29 0.11
Clear
Actual:
37 | 23 0.00
Average:
50 | 28 0.12
Partly Cloudy
Actual:
51 | 24 0.00
Average:
47 | 25 0.10
Clear
Actual:
52 | 27 0.00
Average:
48 | 26 0.02
Scattered Clouds
Actual:
57 | 27 0.00
Average:
49 | 28 0.12
Rain
Actual:
54 | 42 1.59
Average:
50 | 30 0.19
Fog
Actual:
53 | 37 0.00
Average:
50 | 28 0.02
Rain
Actual:
48 | 32 0.00
Average:
50 | 31 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 59 44 28 36 30 25 92 70 31 30.36 30.19 30.04 10 10 7 5 0 - 0.00  
2 60 48 36 42 37 33 93 82 44 30.01 29.91 29.83 10 10 8 5 1 - 0.00  
3 55 44 34 48 41 33 96 80 59 30.00 29.95 29.88 10 9 3 4 1 - 0.00 Rain
4 62 56 50 55 52 46 100 87 78 30.10 30.05 29.99 10 8 1 4 0 - 0.00 Rain
5 66 60 55 63 59 54 100 94 84 30.14 30.09 30.04 10 4 0 6 1 - 0.05 Fog , Rain
6 77 72 66 64 62 60 93 75 58 30.08 30.02 29.98 10 10 8 10 5 17 0.01  
7 70 56 43 64 43 32 96 80 63 30.46 30.27 30.00 10 9 4 12 7 18 0.19 Rain
8 42 38 33 33 31 26 96 88 58 30.48 30.40 30.30 10 4 2 14 8 21 0.08 Rain
9 45 40 34 44 38 32 100 96 92 30.27 30.15 30.07 10 4 1 6 1 - 0.20 Rain
10 48 38 28 45 41 26 100 90 52 30.34 30.03 29.93 10 6 1 13 2 26 0.41 Rain
11 48 37 26 27 24 20 92 67 36 30.46 30.36 30.30 10 10 10 7 1 - 0.00  
12 43 36 27 27 19 13 85 55 30 30.43 30.36 30.28 10 10 10 13 5 20 0.00  
13 50 37 24 30 20 15 78 56 26 30.40 30.34 30.28 10 10 10 6 1 - 0.00  
14 46 42 37 41 38 30 100 89 54 30.30 29.99 29.79 10 6 2 12 4 17 0.74 Rain
15 53 44 32 42 34 26 97 77 48 30.08 29.88 29.73 10 8 3 13 4 - 0.02 Rain
16 55 42 28 36 30 26 89 69 38 30.19 30.13 30.08 10 10 10 6 1 - 0.00  
17 60 46 32 37 34 30 96 65 38 30.12 30.03 29.89 10 10 10 12 1 20 0.00  
18 48 40 30 30 19 14 69 46 26 30.30 30.22 30.05 10 10 10 13 6 21 0.00  
19 62 45 28 29 22 17 69 45 18 30.32 30.27 30.22 10 10 10 7 1 - 0.00  
20 66 54 43 50 42 30 80 65 48 30.25 30.19 30.12 10 10 10 9 2 - 0.00  
21 73 59 45 64 55 44 97 80 57 30.16 30.09 30.04 10 9 4 7 1 - 0.00  
22 77 70 63 65 63 60 97 81 58 30.11 30.05 30.01 10 9 2 14 5 26 0.27 Rain
23 66 56 45 64 59 34 97 92 65 30.16 30.06 30.00 10 7 1 12 4 18 1.24 Rain
24 46 38 28 33 25 10 68 55 41 30.46 30.27 30.15 10 10 10 13 8 21 0.00  
25 37 30 23 16 11 7 69 47 28 30.57 30.49 30.42 10 10 10 9 4 - 0.00  
26 51 38 24 27 23 17 82 58 31 30.40 30.33 30.25 10 10 10 7 2 - 0.00  
27 52 40 27 26 21 16 85 57 24 30.47 30.42 30.38 10 10 10 5 1 - 0.00  
28 57 42 27 36 27 22 85 60 26 30.41 30.33 30.17 10 10 10 4 0 - 0.00  
29 54 48 42 52 44 33 100 93 56 30.10 29.88 29.73 10 4 0 14 3 25 1.59 Fog , Rain
30 53 45 37 42 38 32 100 84 57 30.14 30.02 29.94 10 6 0 8 2 - 0.00 Fog
31 48 40 32 35 28 20 92 64 32 30.37 30.25 30.13 10 10 5 10 4 18 0.00 Rain