Weather History for Chapel Hill, NC

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Month of September, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 90 °F 80 °F 69 °F
Mean Temperature 80 °F 70 °F 62 °F
Min Temperature 72 °F 60 °F 51 °F
Degree Days  
Heating Degree Days (base 65) 3 0 0 15
Cooling Degree Days (base 65) 16 6 0 166
Growing Degree Days (base 50) 30 20 12 605
Dew Point  
Dew Point 74 °F 59 °F 43 °F
Precipitation  
Precipitation 1.56 in 0.09 in 0.00 in 2.71 in
Snowdepth - - - -
Wind  
Wind 17 mph 3 mph 0 mph
Gust Wind 28 mph 19 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.33 in 30.04 in 29.72 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 24, 2013 Rise Set
Actual Time 7:05 AM EDT 7:09 PM EDT
Civil Twilight 6:40 AM EDT 7:35 PM EDT
Nautical Twilight 6:10 AM EDT 8:05 PM EDT
Astronomical Twilight 5:40 AM EDT 8:35 PM EDT
Moon 10:35 PM EDT (9/24) 12:09 PM EDT (9/24)
Length of Visible Light 12h 54m
Length of Day
12h 03m
Waning Gibbous, 73% of the Moon is Illuminated
Sep 24
Waning Gibbous
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter
Oct 18
Full

Weather History Calendar

Precipitation Actual month total 2.71 Average Month Total: 3.23
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Thunderstorm
Actual:
90 | 71 1.56
Average:
87 | 62 0.09
Rain
Actual:
87 | 69 0.00
Average:
84 | 62 0.05
Thunderstorm
Actual:
88 | 72 0.09
Average:
85 | 62 0.03
Partly Cloudy
Actual:
84 | 66 0.00
Average:
86 | 62 0.20
Clear
Actual:
87 | 64 0.00
Average:
84 | 61 0.20
Clear
Actual:
82 | 64 0.00
Average:
82 | 60 0.26
Scattered Clouds
Actual:
82 | 57 0.00
Average:
84 | 59 0.16
Scattered Clouds
Actual:
87 | 62 0.00
Average:
84 | 59 0.18
Scattered Clouds
Actual:
88 | 64 0.00
Average:
82 | 58 0.12
Fog
Actual:
90 | 66 0.00
Average:
83 | 60 0.07
Clear
Actual:
90 | 66 0.00
Average:
83 | 58 0.08
Rain
Actual:
90 | 70 0.01
Average:
83 | 57 0.07
Scattered Clouds
Actual:
84 | 66 0.00
Average:
83 | 58 0.08
Scattered Clouds
Actual:
75 | 57 0.00
Average:
82 | 57 0.05
Scattered Clouds
Actual:
80 | 52 0.00
Average:
83 | 59 0.06
Fog
Actual:
84 | 64 0.02
Average:
83 | 57 0.02
Scattered Clouds
Actual:
77 | 57 0.00
Average:
81 | 57 0.03
Clear
Actual:
73 | 51 0.00
Average:
80 | 58 0.12
Partly Cloudy
Actual:
75 | 53 0.00
Average:
81 | 59 0.03
Rain
Actual:
69 | 63 0.24
Average:
81 | 59 0.20
Rain
Actual:
78 | 64 0.41
Average:
81 | 59 0.13
Rain
Actual:
77 | 57 0.38
Average:
80 | 57 0.17
Scattered Clouds
Actual:
73 | 54 0.00
Average:
79 | 54 0.11
Partly Cloudy
Actual:
77 | 54 0.00
Average:
78 | 52 0.09
Partly Cloudy
Actual:
73 | 53 0.00
Average:
77 | 54 0.16
Partly Cloudy
Actual:
77 | 57 0.00
Average:
76 | 54 0.17
Scattered Clouds
Actual:
75 | 55 0.00
Average:
78 | 54 0.03
Scattered Clouds
Actual:
72 | 55 0.00
Average:
79 | 53 0.09
Scattered Clouds
Actual:
73 | 53 0.00
Average:
77 | 54 0.04
Scattered Clouds
Actual:
77 | 51 0.00
Average:
75 | 52 0.14
 

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
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 90 80 71 72 70 68 94 86 55 29.92 29.86 29.80 9 6 1 17 3 28 1.56 Rain , Thunderstorm
2 87 78 69 73 70 67 93 81 59 29.90 29.85 29.81 10 8 2 5 1 - 0.00 Rain
3 88 80 72 74 71 69 94 82 55 29.95 29.86 29.81 10 6 1 9 2 - 0.09 Rain , Thunderstorm
4 84 75 66 71 65 59 93 73 55 30.11 30.06 29.96 10 9 5 12 5 - 0.00  
5 87 75 64 65 62 53 93 75 33 30.11 30.08 30.04 10 7 1 7 1 - 0.00  
6 82 73 64 61 57 53 75 60 44 30.19 30.14 30.09 10 10 10 9 6 - 0.00  
7 82 70 57 66 60 56 93 75 49 30.15 30.07 29.99 10 9 6 8 1 - 0.00  
8 87 74 62 67 62 56 93 72 38 30.00 29.96 29.92 10 8 1 6 1 - 0.00  
9 88 76 64 69 65 62 93 73 46 30.16 30.09 30.01 10 8 3 7 2 - 0.00  
10 90 78 66 69 66 64 97 80 43 30.24 30.20 30.15 10 5 0 6 1 - 0.00 Fog
11 90 78 66 69 66 64 93 71 46 30.21 30.15 30.08 10 9 3 7 2 - 0.00  
12 90 80 70 69 67 64 84 71 52 30.07 29.94 29.81 10 10 7 8 2 - 0.01 Rain
13 84 74 66 68 59 48 90 62 39 29.90 29.81 29.77 10 10 7 9 5 17 0.00  
14 75 66 57 54 50 45 84 60 42 30.15 30.04 29.91 10 10 10 12 5 17 0.00  
15 80 66 52 59 54 49 89 69 42 30.25 30.18 30.13 10 10 10 6 1 - 0.00  
16 84 74 64 69 64 56 96 77 38 30.20 30.13 30.05 10 7 0 13 2 20 0.02 Fog
17 77 68 57 55 51 46 78 59 35 30.33 30.27 30.21 10 10 10 12 6 18 0.00  
18 73 62 51 51 48 43 89 65 35 30.32 30.25 30.19 10 10 10 8 4 - 0.00  
19 75 64 53 61 55 49 86 72 51 30.21 30.15 30.09 10 10 10 5 1 - 0.00  
20 69 66 63 65 63 58 94 88 73 30.10 30.05 29.98 10 7 2 6 2 - 0.24 Rain
21 78 70 64 70 66 62 93 87 71 29.98 29.84 29.74 10 7 1 7 2 - 0.41 Rain
22 77 68 57 61 58 54 90 73 50 29.91 29.80 29.72 10 10 7 13 5 22 0.38 Rain
23 73 62 54 56 51 47 93 71 45 30.08 30.03 29.92 10 10 7 9 3 - 0.00  
24 77 64 54 58 54 51 90 75 50 30.11 30.04 29.96 10 9 5 5 1 - 0.00  
25 73 62 53 61 55 50 93 82 53 29.96 29.93 29.88 10 7 1 5 1 - 0.00  
26 77 68 57 60 54 48 87 67 36 30.05 29.96 29.89 10 10 10 9 3 - 0.00  
27 75 64 55 58 54 52 89 73 49 30.20 30.13 30.06 10 10 10 12 3 - 0.00  
28 72 64 55 55 52 50 89 73 48 30.27 30.21 30.18 10 10 10 12 3 20 0.00  
29 73 63 53 57 52 49 96 73 44 30.19 30.12 30.05 10 10 10 7 4 - 0.00  
30 77 63 51 58 53 49 97 76 43 30.11 30.07 30.01 10 10 9 5 1 - 0.00