Weather History for Dayton, OH

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Month of May, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 92 °F 79 °F 63 °F
Mean Temperature 82 °F 69 °F 55 °F
Min Temperature 71 °F 58 °F 44 °F
Degree Days  
Heating Degree Days (base 65) 10 1 0 40
Cooling Degree Days (base 65) 17 5 0 149
Growing Degree Days (base 50) 31 18 5 568
Dew Point  
Dew Point 69 °F 52 °F 26 °F
Precipitation  
Precipitation 0.92 in 0.07 in 0.00 in 2.04 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 31 mph 7 mph 0 mph
Gust Wind 40 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.28 in 29.99 in 29.71 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

May. 15, 2012 Rise Set
Actual Time 6:21 AM EDT 8:45 PM EDT
Civil Twilight 5:50 AM EDT 9:16 PM EDT
Nautical Twilight 5:12 AM EDT 9:54 PM EDT
Astronomical Twilight 4:31 AM EDT 10:36 PM EDT
Moon 3:22 AM EDT (5/15) 4:03 PM EDT (5/15)
Length of Visible Light 15h 25m
Length of Day
14h 24m
Waning Crescent, 24% of the Moon is Illuminated
May 15
Waning Crescent
May 20
New
May 28
First Quarter
Jun 4
Full
Jun 11
Last Quarter

Weather History Calendar

Precipitation Actual month total 2.04 Normal Month Total: 4.66
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Thunderstorm
Actual:
71 | 60 0.92
Average:
67 | 47 0.15
Thunderstorm
Actual:
84 | 62 0.03
Average:
68 | 47 0.14
Partly Cloudy
Actual:
85 | 67 0.00
Average:
68 | 47 0.15
Thunderstorm
Actual:
81 | 63 0.05
Average:
68 | 48 0.16
Thunderstorm
Actual:
75 | 57 0.10
Average:
69 | 48 0.15
Partly Cloudy
Actual:
80 | 53 0.00
Average:
69 | 48 0.15
Thunderstorm
Actual:
83 | 60 0.47
Average:
69 | 49 0.15
Rain
Actual:
72 | 56 0.14
Average:
69 | 49 0.14
Rain
Actual:
68 | 50 0.02
Average:
70 | 49 0.15
Scattered Clouds
Actual:
66 | 44 0.00
Average:
70 | 49 0.15
Scattered Clouds
Actual:
72 | 44 0.00
Average:
70 | 50 0.15
Partly Cloudy
Actual:
72 | 51 T
Average:
70 | 50 0.15
Rain
Actual:
63 | 59 0.02
Average:
71 | 50 0.16
Partly Cloudy
Actual:
76 | 58 0.00
Average:
71 | 51 0.15
Scattered Clouds
Actual:
81 | 54 0.00
Average:
71 | 51 0.16
Scattered Clouds
Actual:
77 | 52 0.00
Average:
72 | 51 0.14
Clear
Actual:
71 | 45 0.00
Average:
72 | 52 0.15
Clear
Actual:
79 | 47 0.00
Average:
72 | 52 0.15
Clear
Actual:
85 | 54 0.00
Average:
72 | 52 0.14
Scattered Clouds
Actual:
87 | 61 0.00
Average:
73 | 53 0.15
Partly Cloudy
Actual:
82 | 61 0.00
Average:
73 | 53 0.15
Overcast
Actual:
72 | 59 0.00
Average:
73 | 53 0.15
Partly Cloudy
Actual:
78 | 55 0.00
Average:
73 | 54 0.16
Scattered Clouds
Actual:
85 | 59 0.00
Average:
74 | 54 0.15
Partly Cloudy
Actual:
88 | 69 0.00
Average:
74 | 54 0.15
Scattered Clouds
Actual:
91 | 68 0.00
Average:
74 | 55 0.15
Scattered Clouds
Actual:
91 | 70 0.00
Average:
75 | 55 0.15
Scattered Clouds
Actual:
92 | 71 0.00
Average:
75 | 55 0.16
Thunderstorm
Actual:
81 | 64 0.19
Average:
75 | 56 0.15
Scattered Clouds
Actual:
81 | 59 0.00
Average:
76 | 56 0.15
Rain
Actual:
79 | 52 0.10
Average:
76 | 56 0.15
 

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

2012 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 71 66 60 63 59 55 100 81 61 30.09 30.00 29.93 10 7 0 29 7 37 0.92 Fog , Rain , Thunderstorm
2 84 73 62 66 61 58 93 69 44 30.04 29.97 29.91 10 10 7 26 13 32 0.03 Rain , Thunderstorm
3 85 76 67 64 63 61 81 65 48 30.09 30.03 29.96 10 10 7 20 10 25 0.00  
4 81 72 63 67 64 60 90 74 58 30.03 29.96 29.88 10 10 7 20 7 24 0.05 Rain , Thunderstorm
5 75 66 57 64 62 54 93 81 68 30.05 29.96 29.89 10 6 2 13 6 16 0.10 Rain , Thunderstorm
6 80 67 53 58 53 47 89 67 45 30.09 30.01 29.94 10 10 10 13 5 15 0.00  
7 83 72 60 64 60 50 93 72 51 29.92 29.84 29.75 10 8 2 22 8 28 0.47 Rain , Thunderstorm
8 72 64 56 63 56 47 97 72 47 29.91 29.84 29.77 10 6 2 17 9 23 0.14 Rain
9 68 59 50 48 43 40 77 59 40 29.90 29.86 29.81 10 10 10 23 10 26 0.02 Rain
10 66 55 44 40 35 26 76 50 24 30.05 29.96 29.88 10 10 10 20 8 24 0.00  
11 72 58 44 41 33 27 70 46 21 30.21 30.16 30.06 10 10 10 12 3 16 0.00  
12 72 62 51 45 39 34 63 46 29 30.28 30.23 30.19 10 10 10 10 4 13 T  
13 63 61 59 56 53 44 87 70 52 30.19 30.15 30.10 10 10 8 14 6 17 0.02 Rain
14 76 67 58 55 52 48 93 66 38 30.10 30.05 29.99 10 9 7 14 6 21 0.00  
15 81 68 54 56 45 32 93 55 17 30.03 29.99 29.94 10 8 2 12 5 18 0.00  
16 77 65 52 50 44 35 67 48 29 30.09 29.97 29.93 10 10 10 18 10 23 0.00  
17 71 58 45 38 35 30 66 45 23 30.19 30.13 30.10 10 10 10 16 8 21 0.00  
18 79 63 47 40 37 34 66 44 21 30.15 30.10 30.05 10 10 10 12 4 14 0.00  
19 85 70 54 52 48 40 71 50 29 30.15 30.11 30.08 10 10 10 10 3 16 0.00  
20 87 74 61 56 52 48 72 51 29 30.17 30.11 30.04 10 10 7 16 6 26 0.00  
21 82 72 61 58 55 52 72 59 45 30.04 29.99 29.94 10 10 10 20 8 24 0.00  
22 72 66 59 56 54 52 84 69 53 30.00 29.95 29.90 10 9 5 14 7 17 0.00  
23 78 67 55 58 55 52 93 70 46 29.96 29.91 29.86 10 8 2 10 4 14 0.00  
24 85 72 59 61 57 55 90 64 37 29.95 29.89 29.84 10 9 4 21 10 25 0.00  
25 88 79 69 65 61 55 62 53 43 30.07 29.99 29.91 10 9 8 17 11 22 0.00  
26 91 80 68 65 62 59 87 62 37 30.15 30.10 30.05 10 8 5 13 4 16 0.00  
27 91 81 70 66 64 62 74 56 38 30.10 30.04 29.97 10 9 6 15 7 18 0.00  
28 92 82 71 69 64 59 79 57 34 29.99 29.91 29.84 10 9 7 17 10 22 0.00  
29 81 73 64 68 63 59 93 73 52 29.93 29.85 29.80 10 9 3 31 10 40 0.19 Rain , Thunderstorm
30 81 70 59 60 47 40 87 57 26 29.88 29.85 29.82 10 10 8 22 8 29 0.00  
31 79 66 52 60 47 42 93 61 28 29.94 29.84 29.71 10 10 6 22 7 28 0.10 Rain