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 fluctuating between 71.1°F (21.7°C) and 91.2°F (32.9°C).

Temperature

Temperature records mark July as the warmest month, with highs averaging 91.2°F (32.9°C) and lows at 71.1°F (21.7°C).

Heat index

July's mean heat index is appraised at a burning hot 113°F (45°C). Be prepared: Heat cramps and heat exhaustion are probable. Continued activity may lead to heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

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 in Derma.

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

The months with the highest UV index in Derma are June and July, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 7 during July leads to these instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
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Frequently asked questions

What part of the year is the hottest in Derma?

July, with average temperatures reaching a high of 91.2°F (32.9°C) and a low of 71.1°F (21.7°C), is the warmest month in Derma.

How hot does it get in Derma in July?

In Derma, in July, the average high-temperature is 91.2°F (32.9°C), and the average low-temperature is 71.1°F (21.7°C). In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 113°F (45°C).

What is the average humidity in July in Derma?

The average relative humidity in July in Derma is 74%.

What is the wettest month in Derma?

The month with the most rainfall in Derma is July, when the rain falls for 19 days and typically aggregates up to 3.46" (88mm) of precipitation.

How many days does it rain in July in Derma?

In July, in Derma, the rain falls for 19 days. Throughout July, 3.46" (88mm) of precipitation is accumulated.

When it does not snow in Derma?

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 in Derma is 14h and 9min.

When is the sunrise / sunset in July in Derma?

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

How long on average sun shines in July in Derma?

In July, the average sunshine duration in Derma, Mississippi, is 10.4h.

What is the month with the highest UV index in Derma?

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

What is the UV index reading in July in Derma?

In July, the average daily maximum UV index in Derma, Mississippi, is 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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).

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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).

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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).

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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).

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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).

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Derma, Mississippi, USA

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