July weather forecastGreenhills, MD
July
Weather in July
July, the same as June, is another warm summer month in Greenhills, Maryland, with an average temperature varying between 85.6°F (29.8°C) and 66.6°F (19.2°C).Temperature
The month of July, characterized by an average high of 85.6°F (29.8°C) and a low of 66.6°F (19.2°C), is recognized as the warmest.Heat index
In July, the heat index is calculated to be a torrid 96.8°F (36°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.For clarity, heat index numbers account for light winds and areas under shade. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.
Humidity
The months with the lowest humidity are April and July, with an average relative humidity of 74%.Rainfall
In Greenhills, during July, the rain falls for 16.3 days and regularly aggregates up to 3.23" (82mm) of precipitation. Throughout the year, there are 158.7 rainfall days, and 30.91" (785mm) of precipitation is accumulated.Snowfall
In Greenhills, snow does not fall in June through September.Daylight
The average length of the day in July is 14h and 37min.On the first day of the month, sunrise is at 5:46 am and sunset at 8:39 pm. On the last day of July, sunrise is at 6:08 am and sunset at 8:21 pm EDT.
Sunshine
With an average of 10.8h of sunshine, July has the most sunshine of the year.UV index
The months with the highest UV index in Greenhills are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In July, the maximum UV index of 6 translates into these guidelines:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Greenhills, MD
- Average high temperature in July: 85.6°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in July: 66.6°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in July
Greenhills, MD
- Average pressure in July: 29.97"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in July
Greenhills, MD
- Average wind speed in July: 5mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in July
Greenhills, MD
- Average humidity in July: 74%
The months with the highest relative humidity are May and October (79%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall in July
Greenhills, MD
- Average rainfall in July: 3.23"
The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in July
Greenhills, MD
- Average rainfall days in July: 16.3 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in July
Greenhills, MD
- Average snowfall in July: 0"
The month with the highest snowfall is March (4.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Greenhills, MD
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Greenhills, MD
- Average daylight in July: 14h and 36min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in July: 10h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in July
Greenhills, MD
- Average sunshine days in July: 12.1 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in July
Greenhills, MD
- Average UV index in July: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in July
Greenhills, MD
- Average cloud cover in July: 30
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in July
Greenhills, MD
- Average visibility in July: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
