July weather forecastChester, MD
July
Weather in July
July, the same as June, is another warm summer month in Chester, Maryland, with temperature in the range of an average low of 71.2°F (21.8°C) and an average high of 84.4°F (29.1°C).Temperature
Chester reaches its highest average temperatures in July, measuring 84.4°F (29.1°C) at the peak and 71.2°F (21.8°C) at the lowest.Heat index
The heat index for July is calculated to be a hot 93.2°F (34°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.Heat index guidelines indicate values are for light wind scenarios and shaded regions. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Humidity
In Chester, the average relative humidity in July is 76%.Rainfall
July is the month with the most rainfall. Rain falls for 16.8 days and accumulates 3.31" (84mm) of precipitation.Snowfall
May through October are months without snowfall.Ocean temperature
In July, the average ocean temperature is 76.1°F (24.5°C).Note: The allure of a swim in 76.1°F (24.5°C) waters can be influenced by your feelings towards the cold, today's sunshine, the wind's touch, and the ambient warmth. To put it in perspective, Olympic standards demand water temperatures of 77°F (25°C) to 82.4°F (28°C).
Daylight
In Chester, the average length of the day in July is 14h and 35min.On the first day of July, sunrise is at 5:43 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 8:17 pm EDT.
Sunshine
July has the most sunshine of the year, with an average of 10.9h of sunshine.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In July, the UV index of 6 transforms into the following advice:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Alert! Sand and water increase UV exposure due to their reflective properties.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Chester, MD
- Average high temperature in July: 84.4°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (40.1°F).
- Average low temperature in July: 71.2°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).
Average pressure in July
Chester, MD
- Average pressure in July: 29.96"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in July
Chester, MD
- Average wind speed in July: 6.6mph
The windiest months (with the highest average wind speed) are February and March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in July
Chester, MD
- Average humidity in July: 76%
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and November (73%).
Average rainfall in July
Chester, MD
- Average rainfall in July: 3.31"
The wettest month (with the highest rainfall) is July (3.31").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in July
Chester, MD
- Average rainfall days in July: 16.8 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in July
Chester, MD
- Average snowfall in July: 0"
The month with the highest snowfall is January (1.42").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Chester, MD
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in July
Chester, MD
- Average sea temperature in July: 76.1°F
The best month for swimming (with the highest average sea temperature) is August (77.8°F).
The coldest month (with the lowest average sea temperature) is February (45.1°F).
Average daylight in July /
Average sunshine in July
Chester, 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 54min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in July
Chester, MD
- Average sunshine days in July: 12.3 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in July
Chester, 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 and December (UV index 2).
Average cloud cover in July
Chester, MD
- Average cloud cover in July: 28
The months with the most cloud cover are February, March and December (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in July
Chester, MD
- Average visibility in July: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





