Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
Saint Charles, Maryland, reaches its highest average temperatures in July, measuring 87.4°F (30.8°C) at the peak and 68.9°F (20.5°C) at the lowest.Heat index
July's heat index is calculated to be a torrid 100.4°F (38°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.Be aware that heat index ratings are designed for shaded locations and minor breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
The average relative humidity in July is 74%.Rainfall
In Saint Charles, in July, it is raining for 14.3 days, with typically 3.11" (79mm) of accumulated precipitation. Throughout the year, there are 151.4 rainfall days, and 29.33" (745mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Saint Charles, the average length of the day in July is 14h and 33min.On the first day of the month, sunrise is at 5:47 am and sunset at 8:36 pm. On the last day of July, sunrise is at 6:09 am and sunset at 8:18 pm EDT.
Sunshine
With an average of 10.5h of sunshine, July has the most sunshine of the year.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In July, a daily UV index of 6 turns into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year?
How hot is it in July?
What is the average humidity in July?
How much does it rain in July?
When it does not snow in Saint Charles?
How many hours of daylight does Saint Charles have in July?
What time are sunrise and sunset in July?
What month has the most sunshine?
How long on average sun shines in July?
What is the month with the highest UV index in Saint Charles?
How high is the UV index in July?
Average temperature in July
Saint Charles, MD
- Average high temperature in July: 87.4°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in July: 68.9°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in July
Saint Charles, 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
Saint Charles, MD
- Average wind speed in July: 5.2mph
The windiest months (with the highest average wind speed) are March and April (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in July
Saint Charles, MD
- Average humidity in July: 74%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March and April (73%).
Average rainfall in July
Saint Charles, MD
- Average rainfall in July: 3.11"
The wettest month (with the highest rainfall) is August (3.31").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days in July
Saint Charles, MD
- Average rainfall days in July: 14.3 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is November (8.7 days).
Average snowfall in July
Saint Charles, MD
- Average snowfall in July: 0"
The month with the highest snowfall is January (2.32").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Saint Charles, MD
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Saint Charles, MD
- Average daylight in July: 14h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in July: 10h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 0min).
Average sunshine days in July
Saint Charles, MD
- Average sunshine days in July: 13.7 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in July
Saint Charles, 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 and December (UV index 2).
Average cloud cover in July
Saint Charles, MD
- Average cloud cover in July: 32
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in July
Saint Charles, 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).
Saint Charles, Maryland, USA
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