Weather History for Chapel Hill, NC

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Month of May, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 87 °F 76 °F 59 °F
Mean Temperature 76 °F 66 °F 54 °F
Min Temperature 69 °F 56 °F 37 °F
Degree Days  
Heating Degree Days (base 65) 12 3 0 94
Cooling Degree Days (base 65) 10 4 0 111
Growing Degree Days (base 50) 26 16 4 481
Dew Point  
Dew Point 70 °F 55 °F 27 °F
Precipitation  
Precipitation 1.50 in 0.15 in 0.00 in 4.56 in
Snowdepth - - - -
Wind  
Wind 20 mph 4 mph 0 mph
Gust Wind 33 mph 19 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.34 in 30.08 in 29.79 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

May. 27, 2013 Rise Set
Actual Time 6:02 AM EDT 8:24 PM EDT
Civil Twilight 5:33 AM EDT 8:53 PM EDT
Nautical Twilight 4:57 AM EDT 9:29 PM EDT
Astronomical Twilight 4:17 AM EDT 10:09 PM EDT
Moon 11:04 PM EDT (5/27) 8:36 AM EDT (5/27)
Length of Visible Light 15h 20m
Length of Day
14h 21m
Waning Gibbous, 91% of the Moon is Illuminated
May 27
Waning Gibbous
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Jun 23
Full

Weather History Calendar

Precipitation Actual month total 4.56 Average Month Total: 4.24
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
62 | 57 0.00
Average:
74 | 48 0.05
Mostly Cloudy
Actual:
63 | 54 0.00
Average:
77 | 50 0.14
Partly Cloudy
Actual:
69 | 48 0.00
Average:
76 | 50 0.13
Mostly Cloudy
Actual:
64 | 48 0.00
Average:
74 | 48 0.19
Rain
Actual:
59 | 48 0.03
Average:
74 | 46 0.13
Thunderstorm
Actual:
66 | 55 0.89
Average:
76 | 48 0.10
Fog
Actual:
71 | 50 0.00
Average:
77 | 50 0.03
Thunderstorm
Actual:
71 | 54 0.05
Average:
77 | 51 0.11
Fog
Actual:
80 | 54 0.00
Average:
75 | 50 0.11
Clear
Actual:
84 | 55 0.00
Average:
75 | 48 0.05
Rain
Actual:
82 | 64 0.12
Average:
75 | 48 0.09
Partly Cloudy
Actual:
72 | 53 0.01
Average:
77 | 51 0.03
Scattered Clouds
Actual:
66 | 44 0.00
Average:
79 | 54 0.08
Clear
Actual:
70 | 37 0.00
Average:
78 | 54 0.13
Clear
Actual:
87 | 52 0.00
Average:
77 | 54 0.13
Clear
Actual:
84 | 62 0.00
Average:
78 | 53 0.28
Clear
Actual:
86 | 63 0.00
Average:
78 | 53 0.06
Thunderstorm
Actual:
78 | 62 0.71
Average:
78 | 54 0.13
Thunderstorm
Actual:
77 | 64 0.60
Average:
81 | 55 0.11
Thunderstorm
Actual:
75 | 66 1.50
Average:
80 | 55 0.35
Partly Cloudy
Actual:
84 | 68 0.00
Average:
79 | 56 0.19
Rain
Actual:
84 | 69 0.00
Average:
80 | 55 0.24
Rain
Actual:
80 | 66 0.62
Average:
79 | 55 0.16
Partly Cloudy
Actual:
71 | 51 0.03
Average:
80 | 56 0.08
Clear
Actual:
73 | 42 0.00
Average:
80 | 57 0.14
Scattered Clouds
Actual:
73 | 48 0.00
Average:
79 | 57 0.18
Scattered Clouds
Actual:
81 | 50 0.00
Average:
78 | 57 0.16
Scattered Clouds
Actual:
84 | 61 0.00
Average:
79 | 56 0.16
Scattered Clouds
Actual:
84 | 61 0.00
Average:
78 | 57 0.28
Scattered Clouds
Actual:
84 | 62 0.00
Average:
81 | 58 0.19
Partly Cloudy
Actual:
86 | 64 0.00
Average:
79 | 58 0.03
 

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
May high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 62 59 57 57 55 53 90 86 81 30.33 30.25 30.17 10 8 2 17 8 23 0.00 Rain
2 63 58 54 55 54 50 93 86 75 30.34 30.31 30.27 10 7 2 14 8 17 0.00  
3 69 58 48 51 47 40 90 71 45 30.28 30.23 30.17 10 10 10 18 7 26 0.00  
4 64 56 48 49 46 42 83 71 56 30.21 30.15 30.09 10 10 10 16 11 24 0.00  
5 59 54 48 54 48 44 90 82 75 30.10 30.05 29.99 10 9 2 14 11 24 0.03 Rain
6 66 60 55 64 57 53 100 92 84 30.00 29.91 29.84 10 6 0 13 7 22 0.89 Fog , Rain , Thunderstorm
7 71 60 50 56 52 44 97 87 39 29.95 29.89 29.86 10 5 0 6 1 - 0.00 Fog
8 71 62 54 57 53 50 93 77 56 30.01 29.97 29.93 10 10 3 15 1 20 0.05 Rain , Thunderstorm
9 80 66 54 57 54 52 97 80 40 30.06 30.02 29.99 10 5 0 8 1 - 0.00 Fog
10 84 70 55 60 56 53 90 63 37 30.06 30.01 29.95 10 10 7 7 1 - 0.00  
11 82 73 64 66 61 56 93 74 45 29.95 29.86 29.79 10 8 1 8 3 22 0.12 Rain
12 72 63 53 62 47 32 94 58 31 30.03 29.90 29.81 10 10 10 12 6 21 0.01  
13 66 54 44 39 34 27 79 48 28 30.19 30.11 30.04 10 10 10 9 2 20 0.00  
14 70 54 37 43 37 30 89 53 28 30.27 30.18 30.08 10 10 10 8 2 17 0.00  
15 87 69 52 60 52 41 71 53 38 30.07 30.00 29.90 10 10 7 7 2 - 0.00  
16 84 73 62 61 58 55 86 60 38 29.98 29.94 29.90 10 10 10 8 3 17 0.00  
17 86 74 63 62 59 56 87 61 36 30.09 30.04 29.99 10 10 10 6 2 - 0.00  
18 78 68 62 67 63 58 93 82 66 30.18 30.13 30.08 10 7 2 9 4 - 0.71 Rain , Thunderstorm
19 77 70 64 68 65 62 94 86 64 30.17 30.12 30.06 10 6 0 8 2 17 0.60 Fog , Rain , Thunderstorm
20 75 70 66 70 66 64 94 89 79 30.13 30.09 30.03 10 6 0 8 2 - 1.50 Fog , Rain , Thunderstorm
21 84 75 68 70 68 65 93 82 60 30.06 30.02 29.95 10 8 2 8 2 - 0.00  
22 84 76 69 67 66 64 90 79 53 30.05 29.99 29.92 10 9 6 8 3 - 0.00 Rain
23 80 72 66 67 65 63 94 83 60 29.98 29.92 29.82 10 8 1 10 2 - 0.62 Rain
24 71 62 51 63 50 37 93 64 36 30.19 29.99 29.83 10 10 10 20 8 33 0.03  
25 73 58 42 51 39 33 89 54 23 30.28 30.21 30.14 10 10 10 14 4 18 0.00  
26 73 60 48 50 43 37 80 54 29 30.28 30.22 30.18 10 10 10 9 3 - 0.00  
27 81 65 50 54 50 47 89 61 34 30.28 30.23 30.16 10 10 10 8 2 - 0.00  
28 84 72 61 62 60 53 90 66 49 30.26 30.20 30.15 10 10 7 8 2 16 0.00  
29 84 72 61 63 61 59 93 67 46 30.24 30.20 30.17 10 10 6 8 2 - 0.00  
30 84 73 62 65 62 59 93 68 43 30.30 30.23 30.19 10 10 6 8 2 - 0.00  
31 86 75 64 66 64 61 90 71 44 30.24 30.19 30.11 10 10 8 7 3 - 0.00