August weather forecastDerma, MS
August
Weather in August
The last month of the summer, August, is another hot month in Derma, Mississippi, with an average temperature varying between 90.5°F (32.5°C) and 70.7°F (21.5°C).Temperature
The arrival of August records an average high-temperature of a still hot 90.5°F (32.5°C), closely related to the 91.2°F (32.9°C) observed in July. Derma, in August, witnesses an average low-temperature of 70.7°F (21.5°C).Heat index
Throughout August, the heat index is appraised at an extremely hot 111.2°F (44°C). Watchful: Heat cramps and heat exhaustion are predicted. Continued exertion could lead to heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.
Humidity
The average relative humidity in August is 74%.Rainfall
In Derma, in August, it is raining for 17.9 days, with typically 2.6" (66mm) of accumulated precipitation. In Derma, during the entire year, the rain falls for 161.2 days and collects up to 32.99" (838mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In August, the average length of the day is 13h and 22min.On the first day of the month, sunrise is at 6:09 am and sunset at 7:57 pm. On the last day of August, sunrise is at 6:30 am and sunset at 7:23 pm CDT.
Sunshine
In August, the average sunshine is 10.3h.UV index
The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Derma, MS
- Average high temperature in August: 90.5°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 August: 70.7°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 August
Derma, MS
- Average pressure in August: 29.97"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 August
Derma, MS
- Average wind speed in August: 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 August
Derma, MS
- Average humidity in August: 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 August
Derma, MS
- Average rainfall in August: 2.6"
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 August
Derma, MS
- Average rainfall days in August: 17.9 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 August
Derma, MS
- Average snowfall in August: 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 August
Derma, MS
- Average snowfall days in August: 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 August /
Average sunshine in August
Derma, MS
- Average daylight in August: 13h and 24min
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 August: 10h and 18min
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 August
Derma, MS
- Average sunshine days in August: 10.5 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 August
Derma, MS
- Average UV index in August: 6
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 August
Derma, MS
- Average cloud cover in August: 30
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 August
Derma, MS
- Average visibility in August: 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).





