July weather forecast
Derma, MS

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Weather in July

July, like June, is a hot summer month in Derma, Mississippi, with an average temperature ranging between max 91.2°F (32.9°C) and min 71.1°F (21.7°C).

Temperature

Derma registers the highest average temperatures during the month of July, with peaks of 91.2°F (32.9°C) and lows of 71.1°F (21.7°C).

Heat index

July's mean heat index is appraised at a burning hot 113°F (45°C). Precaution: Heat cramps along with heat exhaustion are possible. Heatstroke is a serious risk with continued exertion.
Heat index determinations are made taking into account the shade and light air movements. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In Derma, the average relative humidity in July is 74%.

Rainfall

July is the month with the most rainfall. Rain falls for 19 days and accumulates 3.46" (88mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in July is 14h and 9min.
On the first day of the month, sunrise is at 5:50 am and sunset at 8:12 pm. On the last day of July, sunrise is at 6:08 am and sunset at 7:58 pm CDT.

Sunshine

The average sunshine in July in Derma is 10.4h.

UV index

June and July, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high daily UV index of 7 during July translates into the following directions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Jun 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the hottest?

Derma's temperatures tend to reach their peak averages in July, with a high of 91.2°F (32.9°C) and a low of 71.1°F (21.7°C).

How hot does it get in July?

July temperatures vary between a high-temperature of 91.2°F (32.9°C) and a low-temperature of 71.1°F (21.7°C). In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is appraised at 113°F (45°C).

What is the average humidity in July?

In Derma, the average relative humidity in July is 74%.

What is the rainiest month?

July is the month with the most rainfall in Derma. Rain falls for 19 days and accumulates 3.46" (88mm) of precipitation.

How many days does it rain in July?

In Derma, during July, the rain falls for 19 days and regularly aggregates up to 3.46" (88mm) of precipitation.

When it does not snow?

In Derma, snow does not fall in April through October.

What is the average length of the day in July?

In Derma, the average day length in July is 14h and 9min.

When are sunrise and sunset in July in Derma?

On the first day of July, sunrise is at 5:50 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 7:58 pm CDT.

How long on average sun shines in July?

The average sunshine duration in July is 10.4h.

What is the month with the highest UV index?

June and July, with an average maximum UV index of 7, are months with the highest UV index.

What is the UV index reading in July?

In July, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Derma, MS

Average temperature in July - Derma, MS
  • Average high temperature in July: 91.2°F

The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (50.5°F).

  • Average low temperature in July: 71.1°F

The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).

Average pressure in July
Derma, MS

Average pressure in July - Derma, 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
Derma, MS

Average wind speed in July - Derma, MS
  • Average wind speed in July: 4.8mph

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in July
Derma, MS

Average humidity in July - Derma, MS
  • Average humidity in July: 74%

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in July
Derma, MS

Average rainfall in July - Derma, MS
  • Average rainfall in July: 3.46"

The wettest month (with the highest rainfall) is July (3.46").
The driest month (with the least rainfall) is November (1.73").

Average rainfall days in July
Derma, MS

Average rainfall days in July - Derma, MS
  • Average rainfall days in July: 19 days

The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (8.9 days).

Average snowfall in July
Derma, MS

Average snowfall in July - Derma, MS
  • Average snowfall in July: 0"

The month with the highest snowfall is January (0.43").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in July
Derma, MS

Average snowfall days in July - Derma, MS
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (1.8 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
Derma, MS

Average daylight in July / Average sunshine in July - Derma, MS
  • Average daylight in July: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in July: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

Average sunshine days in July
Derma, MS

Average sunshine days in July - Derma, MS
  • Average sunshine days in July: 9.5 days

The month with the most sunshine days is October (20.7 days).
The month with the least sunshine days is July (9.5 days).

Average UV index in July
Derma, MS

Average UV index in July - Derma, 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, February, November and December (UV index 3).

Average cloud cover in July
Derma, MS

Average cloud cover in July - Derma, MS
  • Average cloud cover in July: 31

The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and September (Cloud cover 28).

Average visibility in July
Derma, MS

Average visibility in July - Derma, 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).

Derma, Mississippi, USA

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