Weather History for Raleigh-Durham Airport, NC

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Month of May, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 95 °F 81 °F 66 °F
Mean Temperature 83 °F 70 °F 55 °F
Min Temperature 73 °F 59 °F 42 °F
Degree Days  
Heating Degree Days (base 65) 10 1 0 27
Cooling Degree Days (base 65) 18 6 0 194
Growing Degree Days (base 50) 32 20 5 613
Dew Point  
Dew Point 72 °F 58 °F 32 °F
Precipitation  
Precipitation 1.64 in 0.16 in 0.00 in 4.04 in
Snowdepth - - - -
Wind  
Wind 23 mph 5 mph 0 mph
Gust Wind 30 mph 19 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.30 in 29.97 in 29.51 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

May. 24, 2011 Rise Set
Actual Time 6:03 AM EDT 8:20 PM EDT
Civil Twilight 5:34 AM EDT 8:49 PM EDT
Nautical Twilight 4:58 AM EDT 9:25 PM EDT
Astronomical Twilight 4:20 AM EDT 10:04 PM EDT
Moon 1:22 AM EDT (5/24) 12:59 PM EDT (5/24)
Length of Visible Light 15h 15m
Length of Day
14h 16m
Waning Gibbous, 51% of the Moon is Illuminated
May 24
Waning Gibbous
May 24
Last Quarter
Jun 1
New
Jun 8
First Quarter
Jun 15
Full

Weather History Calendar

Precipitation Actual month total 4.04 Normal Month Total: 3.79
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Partly Cloudy
Actual:
75 | 54 0.00
Average:
76 | 51 0.11
Partly Cloudy
Actual:
83 | 56 0.00
Average:
76 | 51 0.11
Partly Cloudy
Actual:
85 | 63 0.00
Average:
76 | 51 0.11
Thunderstorm
Actual:
71 | 50 0.67
Average:
76 | 52 0.11
Scattered Clouds
Actual:
68 | 42 0.00
Average:
76 | 52 0.11
Rain
Actual:
72 | 44 0.30
Average:
76 | 52 0.12
Fog
Actual:
74 | 53 T
Average:
77 | 53 0.12
Rain
Actual:
71 | 53 0.12
Average:
77 | 53 0.12
Fog
Actual:
80 | 50 0.00
Average:
77 | 53 0.12
Thunderstorm
Actual:
82 | 54 0.16
Average:
77 | 53 0.12
Partly Cloudy
Actual:
79 | 57 T
Average:
78 | 54 0.12
Thunderstorm
Actual:
66 | 60 0.02
Average:
78 | 54 0.12
Thunderstorm
Actual:
79 | 62 0.73
Average:
78 | 54 0.12
Thunderstorm
Actual:
79 | 63 0.12
Average:
78 | 55 0.13
Partly Cloudy
Actual:
80 | 63 0.02
Average:
78 | 55 0.13
Partly Cloudy
Actual:
78 | 56 0.00
Average:
79 | 55 0.13
Thunderstorm
Actual:
72 | 58 0.17
Average:
79 | 56 0.13
Partly Cloudy
Actual:
75 | 55 0.00
Average:
79 | 56 0.13
Fog
Actual:
78 | 53 0.00
Average:
79 | 56 0.13
Partly Cloudy
Actual:
82 | 57 T
Average:
80 | 57 0.13
Partly Cloudy
Actual:
84 | 55 0.00
Average:
80 | 57 0.13
Partly Cloudy
Actual:
89 | 59 T
Average:
80 | 57 0.13
Thunderstorm
Actual:
91 | 66 0.09
Average:
80 | 57 0.13
Partly Cloudy
Actual:
93 | 70 0.00
Average:
80 | 58 0.13
Partly Cloudy
Actual:
93 | 65 0.00
Average:
81 | 58 0.13
Partly Cloudy
Actual:
93 | 73 0.00
Average:
81 | 58 0.12
Thunderstorm
Actual:
82 | 65 1.64
Average:
81 | 59 0.12
Rain
Actual:
86 | 65 T
Average:
81 | 59 0.12
Partly Cloudy
Actual:
89 | 70 0.00
Average:
82 | 59 0.12
Partly Cloudy
Actual:
94 | 70 0.00
Average:
82 | 59 0.12
Fog
Actual:
95 | 70 0.00
Average:
82 | 60 0.12
 

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
May high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 75 65 54 56 51 43 83 66 49 30.27 30.23 30.17 10 10 10 14 5 18 0.00  
2 83 70 56 60 57 52 86 66 45 30.28 30.21 30.13 10 10 10 17 7 23 0.00  
3 85 74 63 63 60 57 84 64 43 30.17 30.08 29.96 10 10 10 22 12 25 0.00  
4 71 61 50 63 49 37 100 69 37 30.25 30.08 29.98 10 8 2 17 6 29 0.67 Rain , Thunderstorm
5 68 55 42 42 36 32 82 54 26 30.30 30.22 30.12 10 10 10 13 3 20 0.00  
6 72 58 44 54 48 40 93 69 44 30.12 30.03 29.94 10 9 5 20 8 26 0.30 Fog , Rain
7 74 64 53 54 51 44 93 64 35 30.02 29.97 29.92 10 6 0 12 3 16 T Fog
8 71 62 53 57 55 51 93 75 57 29.95 29.92 29.90 10 9 7 12 3 16 0.12 Rain
9 80 65 50 57 52 49 96 66 35 30.03 29.96 29.91 10 9 7 8 2 15 0.00 Fog
10 82 68 54 58 52 47 83 60 36 30.01 29.96 29.91 10 10 3 15 5 24 0.16 Rain , Thunderstorm
11 79 68 57 58 55 52 93 70 46 30.05 30.00 29.91 10 9 6 9 3 15 T  
12 66 63 60 58 56 50 84 74 63 30.10 30.04 29.95 10 9 2 15 4 17 0.02 Rain , Thunderstorm
13 79 71 62 68 63 58 93 80 67 29.97 29.85 29.75 10 8 0 23 4 30 0.73 Rain , Thunderstorm
14 79 71 63 67 64 61 87 76 64 29.83 29.72 29.62 10 8 1 14 5 16 0.12 Fog , Rain , Thunderstorm
15 80 72 63 63 60 57 87 68 49 29.64 29.58 29.51 10 10 9 16 6 21 0.02  
16 78 67 56 60 56 53 93 68 43 29.63 29.59 29.56 10 10 10 10 3 15 0.00  
17 72 65 58 58 54 52 84 69 53 29.71 29.62 29.55 10 9 5 16 7 22 0.17 Rain , Thunderstorm
18 75 65 55 58 54 50 100 73 46 29.91 29.79 29.70 10 10 8 12 3 17 0.00  
19 78 66 53 57 54 51 93 71 49 30.07 30.01 29.91 10 10 6 14 3 17 0.00 Fog
20 82 70 57 57 54 51 86 61 36 30.09 30.03 29.98 10 10 10 12 3 17 T  
21 84 70 55 66 55 53 93 65 37 30.05 30.00 29.85 10 10 10 10 2 16 0.00  
22 89 74 59 67 60 55 84 60 36 30.08 30.03 29.98 10 10 10 12 4 18 T  
23 91 79 66 70 66 63 93 67 41 30.06 29.99 29.89 10 9 4 20 7 25 0.09 Rain , Thunderstorm
24 93 82 70 70 64 58 84 59 34 29.95 29.92 29.87 10 10 7 15 7 24 0.00  
25 93 79 65 65 62 60 87 60 33 29.97 29.92 29.88 10 10 10 12 3 15 0.00  
26 93 83 73 67 63 60 73 55 36 29.96 29.91 29.84 10 10 10 20 12 30 0.00  
27 82 74 65 67 64 62 93 78 62 30.03 29.97 29.92 10 8 0 16 7 22 1.64 Fog , Rain , Thunderstorm
28 86 76 65 69 66 63 93 74 55 30.06 29.99 29.96 10 8 0 15 4 20 T Fog , Rain
29 89 80 70 70 68 66 90 70 50 30.15 30.11 30.05 10 10 8 10 5 15 0.00  
30 94 82 70 72 70 66 90 68 46 30.20 30.16 30.12 10 10 9 13 6 16 0.00  
31 95 83 70 72 69 65 93 66 39 30.18 30.16 30.13 10 9 7 13 4 16 0.00 Fog