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
July, with its high-temperature average of 91°F (32.8°C) and a low-temperature average of 71.1°F (21.7°C), is the warmest month.Heat index
July's mean heat index is estimated at a blazing hot 113°F (45°C). Mindful: Heat cramps and heat exhaustion are to be expected. Extended physical effort might result in heatstroke.The heat index's values are generally associated with conditions in shade and light breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', arises from combining readings of air temperature and relative moisture content. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
In July, the average relative humidity is 75%.Rainfall
In Preston, during July, the rain falls for 22.1 days and regularly aggregates up to 3.7" (94mm) of precipitation. In Preston, during the entire year, the rain falls for 176.8 days and collects up to 40.59" (1031mm) of precipitation.Snowfall
In Preston, snow does not fall in April through November.Daylight
The average length of the day in July is 14h and 4min.On the first day of July, sunrise is at 5:50 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 7:54 pm CDT.
Sunshine
In Preston, the average sunshine in July is 10.4h.UV index
The months with the highest UV index are June and July, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: An average maximum UV index of 7 in July leads to these recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest in Preston?
How hot does it get in July?
What is the average humidity in July?
How much does it rain in July?
When it does not snow?
How many hours of daylight does Preston have in July?
What time are sunrise and sunset in July?
How long on average sun shines in July?
What is the month with the highest UV index?
What is the UV index intensity in July?
Average temperature in July
Preston, MS
- Average high temperature in July: 91°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (53.1°F).
- Average low temperature in July: 71.1°F
The month with the highest average low temperature is August (71.2°F).
The coldest month (with the lowest average low temperature) is January (37°F).
Average pressure in July
Preston, MS
- Average pressure in July: 29.99"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in July
Preston, MS
- Average wind speed in July: 5mph
The windiest month (with the highest average wind speed) is February (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in July
Preston, MS
- Average humidity in July: 75%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in July
Preston, MS
- Average rainfall in July: 3.7"
The wettest month (with the highest rainfall) is April (3.98").
The driest month (with the least rainfall) is November (2.48").
Average rainfall days in July
Preston, MS
- Average rainfall days in July: 22.1 days
The month with the highest number of rainy days is July (22.1 days).
The month with the least rainy days is November (9.6 days).
Average snowfall in July
Preston, MS
- Average snowfall in July: 0"
The month with the highest snowfall is January (0.39").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in July
Preston, MS
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Preston, MS
- Average daylight in July: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in July: 10h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in July
Preston, MS
- Average sunshine days in July: 7.5 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (7.5 days).
Average UV index in July
Preston, MS
- Average UV index in July: 7
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in July
Preston, MS
- Average cloud cover in July: 34
The months with the most cloud cover are February and December (Cloud cover 48).
The months with the least cloud cover are September and October (Cloud cover 29).
Average visibility in July
Preston, MS
- 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).
Preston, Mississippi, USA
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