Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
The transition into August marks the average high-temperature at a still tropical 90.3°F (32.4°C), differing minimally from July's 90.9°F (32.7°C). Throughout August, Johnstons Station witnesses a consistent average low-temperature of 72.1°F (22.3°C).Heat index
In August, the heat index is computed to be a blazing hot 113°F (45°C). Stay watchful: Heat exhaustion along with heat cramps are likely. Ongoing effort may cause heatstroke.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
In August, the average relative humidity is 78%.Rainfall
The month with the most rainfall is August, when the rain falls for 18.9 days and typically aggregates up to 2.6" (66mm) of precipitation.Snowfall
In Johnstons Station, snow does not fall in February, April through November.Daylight
In Johnstons Station, the average length of the day in August is 13h and 16min.On the first day of the month, sunrise is at 6:18 am and sunset at 7:57 pm. On the last day of August, sunrise is at 6:37 am and sunset at 7:26 pm CDT.
Sunshine
The average sunshine in August is 10h.UV index
June through August, with an average maximum UV index of 7, are months with the highest UV index in Johnstons Station, Mississippi. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 7 during August translates into these guidelines:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in August?
What is the average humidity in August?
What is the rainiest month?
How much does it rain in August?
When it does not snow?
What is the average length of the day in August?
When are sunrise and sunset in August?
How many hours of sunshine does Johnstons Station have in August?
When is the highest UV index in Johnstons Station?
What is the UV index reading in August in Johnstons Station?
Average temperature in August
Johnstons Station, MS
- Average high temperature in August: 90.3°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (56.7°F).
- Average low temperature in August: 72.1°F
The months with the highest average low temperature are July and August (72.1°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).
Average pressure in August
Johnstons Station, MS
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in August
Johnstons Station, MS
- Average wind speed in August: 4.7mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in August
Johnstons Station, MS
- Average humidity in August: 78%
The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Johnstons Station, MS
- Average rainfall in August: 2.6"
The wettest month (with the highest rainfall) is August (2.6").
The driest month (with the least rainfall) is November (0.79").
Average rainfall days in August
Johnstons Station, MS
- Average rainfall days in August: 18.9 days
The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is November (6.9 days).
Average snowfall in August
Johnstons Station, MS
- Average snowfall in August: 0"
The months with the highest snowfall are January and December (0.12").
The months with the least snowfall are February, April, May, June, July, August, September, October and November (0").
Average snowfall days in August
Johnstons Station, MS
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and December (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
Johnstons Station, MS
- Average daylight in August: 13h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in August: 10h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in August
Johnstons Station, MS
- Average sunshine days in August: 9.7 days
The month with the most sunshine days is October (21.6 days).
The month with the least sunshine days is July (8.9 days).
Average UV index in August
Johnstons Station, MS
- Average UV index in August: 7
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in August
Johnstons Station, MS
- Average cloud cover in August: 36
The months with the most cloud cover are February and December (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in August
Johnstons Station, MS
- Average visibility in August: 5mi
The months with the highest visibility are October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September and December (5mi).
Johnstons Station, Mississippi, USA
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