Weather History for Gaithersburg, MD

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Month of July, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 95 °F 85 °F 73 °F
Mean Temperature 84 °F 76 °F 66 °F
Min Temperature 75 °F 68 °F 55 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 19 11 2 355
Growing Degree Days (base 50) 34 26 16 821
Dew Point  
Dew Point 79 °F 68 °F 50 °F
Precipitation  
Precipitation 0.69 in 0.09 in 0.00 in 2.93 in
Snowdepth - - - -
Wind  
Wind 18 mph 3 mph 0 mph
Gust Wind 34 mph 18 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.38 in 30.08 in 29.69 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Jul. 19, 2013 Rise Set
Actual Time 5:58 AM EDT 8:31 PM EDT
Civil Twilight 5:27 AM EDT 9:02 PM EDT
Nautical Twilight 4:48 AM EDT 9:40 PM EDT
Astronomical Twilight 4:05 AM EDT 10:23 PM EDT
Moon 5:31 PM EDT (7/19) 2:37 AM EDT (7/19)
Length of Visible Light 15h 35m
Length of Day
14h 33m
Waxing Gibbous, 86% of the Moon is Illuminated
Jul 19
Waxing Gibbous
Jul 22
Full
Jul 29
Last Quarter
Aug 6
New
Aug 14
First Quarter

Weather History Calendar

 
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
82 | 69 0.00
Average:
- | - -
Mostly Cloudy
Actual:
82 | 73 0.02
Average:
- | - -
Partly Cloudy
Actual:
84 | 71 0.54
Average:
- | - -
Partly Cloudy
Actual:
87 | 73 0.00
Average:
- | - -
Scattered Clouds
Actual:
87 | 73 0.00
Average:
- | - -
Scattered Clouds
Actual:
91 | 73 0.00
Average:
- | - -
Thunderstorm
Actual:
89 | 69 0.18
Average:
- | - -
Scattered Clouds
Actual:
84 | 68 0.01
Average:
- | - -
Scattered Clouds
Actual:
84 | 69 0.00
Average:
- | - -
Scattered Clouds
Actual:
87 | 73 0.02
Average:
- | - -
Thunderstorm
Actual:
82 | 71 0.02
Average:
- | - -
Thunderstorm
Actual:
73 | 64 0.69
Average:
- | - -
Partly Cloudy
Actual:
84 | 68 0.01
Average:
- | - -
Partly Cloudy
Actual:
89 | 71 0.00
Average:
- | - -
Clear
Actual:
89 | 69 0.00
Average:
- | - -
Scattered Clouds
Actual:
91 | 73 0.00
Average:
- | - -
Scattered Clouds
Actual:
93 | 71 0.00
Average:
- | - -
Thunderstorm
Actual:
95 | 73 0.00
Average:
- | - -
Thunderstorm
Actual:
93 | 75 0.03
Average:
- | - -
Thunderstorm
Actual:
91 | 71 0.21
Average:
- | - -
Scattered Clouds
Actual:
87 | 68 0.01
Average:
- | - -
Thunderstorm
Actual:
87 | 71 0.45
Average:
- | - -
Partly Cloudy
Actual:
82 | 69 0.01
Average:
- | - -
Scattered Clouds
Actual:
80 | 66 0.00
Average:
- | - -
Scattered Clouds
Actual:
77 | 57 0.00
Average:
- | - -
Scattered Clouds
Actual:
80 | 59 0.00
Average:
- | - -
Partly Cloudy
Actual:
82 | 64 0.31
Average:
- | - -
Thunderstorm
Actual:
80 | 66 0.38
Average:
- | - -
Scattered Clouds
Actual:
78 | 59 0.04
Average:
- | - -
Scattered Clouds
Actual:
78 | 55 0.00
Average:
- | - -
Partly Cloudy
Actual:
78 | 62 0.00
Average:
- | - -
 

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
Jul high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 82 76 69 73 70 68 94 85 66 30.03 29.95 29.89 10 10 10 12 4 18 0.00  
2 82 78 73 72 71 70 94 86 70 30.21 30.12 30.02 10 10 10 13 7 17 0.02  
3 84 78 71 75 72 70 94 85 66 30.28 30.24 30.21 10 10 7 8 5 - 0.54  
4 87 80 73 73 71 70 94 76 55 30.30 30.26 30.20 10 10 10 12 5 18 0.00  
5 87 80 73 73 71 70 89 72 55 30.27 30.23 30.17 10 10 9 10 5 18 0.00  
6 91 82 73 73 71 68 94 69 49 30.23 30.18 30.11 10 10 6 9 4 16 0.00  
7 89 79 69 73 70 66 94 77 55 30.16 30.11 30.04 10 10 6 18 3 34 0.18 Thunderstorm
8 84 76 68 70 67 64 100 76 54 30.15 30.11 30.08 10 10 5 14 3 18 0.01  
9 84 76 69 73 70 68 100 81 62 30.15 30.11 30.04 10 10 6 8 2 - 0.00  
10 87 80 73 73 72 68 94 81 58 30.05 29.98 29.90 10 10 2 6 2 - 0.02  
11 82 76 71 72 69 64 100 81 62 29.97 29.93 29.89 10 10 7 - - - 0.02 Thunderstorm
12 73 68 64 70 66 63 100 90 78 30.07 30.02 29.95 10 9 3 7 3 - 0.69 Thunderstorm
13 84 76 68 73 69 66 94 82 65 30.32 30.19 30.06 10 9 2 8 4 - 0.01  
14 89 80 71 73 71 68 100 76 49 30.38 30.34 30.31 10 10 7 9 4 - 0.00  
15 89 79 69 75 72 70 100 77 55 30.35 30.30 30.23 10 9 1 10 3 - 0.00  
16 91 82 73 75 71 68 94 73 46 30.28 30.25 30.21 10 10 6 6 1 - 0.00  
17 93 82 71 73 71 66 94 72 41 30.26 30.21 30.14 10 10 3 6 1 - 0.00  
18 95 84 73 79 74 72 94 77 49 30.16 30.11 30.04 10 9 3 6 1 - 0.00 Thunderstorm
19 93 84 75 77 74 70 100 74 52 30.06 30.00 29.92 10 9 2 12 2 17 0.03 Thunderstorm
20 91 81 71 75 71 66 94 75 52 29.94 29.90 29.84 10 10 3 13 3 25 0.21 Thunderstorm
21 87 78 68 75 71 66 100 84 58 29.98 29.96 29.92 10 8 2 9 1 - 0.01  
22 87 79 71 73 72 68 100 81 55 29.97 29.90 29.80 10 8 1 16 2 21 0.45 Thunderstorm
23 82 76 69 72 69 66 100 82 58 29.80 29.74 29.69 10 10 4 17 4 22 0.01  
24 80 73 66 68 64 55 94 72 51 29.96 29.83 29.73 10 10 10 13 4 16 0.00  
25 77 67 57 61 55 50 94 66 47 30.08 30.02 29.96 10 10 10 9 3 - 0.00  
26 80 70 59 63 59 57 94 72 45 30.13 30.09 30.06 10 10 3 9 2 - 0.00  
27 82 73 64 70 65 59 100 81 58 30.09 30.03 29.98 10 9 2 15 5 21 0.31  
28 80 74 66 70 67 63 94 82 61 30.05 29.96 29.93 10 10 7 9 5 - 0.38 Thunderstorm
29 78 68 59 63 58 54 100 72 42 30.21 30.12 30.03 10 9 0 12 3 17 0.04  
30 78 66 55 64 58 55 100 72 47 30.27 30.22 30.18 10 9 3 12 1 18 0.00  
31 78 70 62 66 63 61 100 76 57 30.19 30.14 30.06 10 9 5 9 2 - 0.00