August weather forecast and climate
Columbia, MS

The last month of the summer, August, is another hot month in Columbia, Mississippi, with average temperature fluctuating between 91.4°F (33°C) and 72.5°F (22.5°C).

Temperature

The warmest month is August, with an average high-temperature of 91.4°F (33°C) and an average low-temperature of 72.5°F (22.5°C).

Heat index

In August, the average heat index is calculated to a life-threatening hot 115.2°F (46.2°C). Beware - heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'apparent temperature', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, differences in body mass, height, and shape, clothing). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

In Columbia, Mississippi, the average relative humidity is 76%.

Rainfall

The month with the most rainfall in Columbia, Mississippi, is August when the rain falls for 22.6 days and typically aggregates up to 4.02" (102mm) of precipitation.

Snowfall

In Columbia snow does not fall in April through November.

Daylight

In Columbia, the average length of the day is 13.2h.

Sunshine

In August, the average sunshine is 10.4h.

UV index

Months with the highest UV index in Columbia are June through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In August, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the warmest month in Columbia?

With an average high-temperature of 91.4°F (33°C) and an average low-temperature of 72.5°F (22.5°C), August is the warmest month in Columbia, Mississippi.

What is the temperature in August in Columbia?

In Columbia, in August, the average high-temperature is 91.4°F (33°C), and the average low-temperature is 72.5°F (22.5°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that factores the actual air temperature with the relative humidity, in August is evaluated at 115.2°F (46.2°C).

What is the average humidity in August in Columbia?

In August, the average relative humidity in Columbia, Mississippi, is 76%.

How much does it rain in Columbia in August?

In Columbia, Mississippi, in August, it is raining for 22.6 days, with typically 4.02" (102mm) of accumulated precipitation.

What is the rainiest month in Columbia?

The month with the most rainfall in Columbia, Mississippi, is August when the rain falls for 22.6 days and typically aggregates up to 4.02" (102mm) of precipitation.

When it does not snow in Columbia?

April through November are months without snowfall in Columbia, Mississippi.

What is the average length of the day in August in Columbia?

In Columbia, Mississippi, the average length of the day in August is 13.2h.

How long on average sun shines in August in Columbia?

In Columbia, Mississippi, the average sunshine in August is 10.4h.

What are the months with the highest UV index in Columbia?

June through August, with an average maximum UV index of 7, are months with the highest UV index in Columbia, Mississippi.

What is the UV index reading in August in Columbia?

In August, the average daily maximum UV index in Columbia is 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to the UV radiation.
Average temperature in August - Columbia, MS
  • Average high temperature in August: 33°C

The warmest month (with the highest average high temperature) is August (33°C).
The month with the lowest average high temperature is January (13.8°C).

  • Average low temperature in August: 22.5°C

The month with the highest average low temperature is August (22.5°C).
The coldest month (with the lowest average low temperature) is January (4.4°C).

Average pressure in August - Columbia, MS
  • Average pressure in August: 1015mbar

The month with the highest atmospheric pressure is January (1021.8mbar).
The month with the lowest atmospheric pressure is June (1014.8mbar).

Average wind speed in August - Columbia, MS
  • Average wind speed in August: 7.3km/h

The windiest month (with the highest average wind speed) is April (11km/h).
The calmest month (with the lowest average wind speed) is July (7.2km/h).

Average humidity in August - Columbia, MS
  • Average humidity in August: 76%

The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August - Columbia, MS
  • Average rainfall in August: 102mm

The wettest month (with the highest rainfall) is August (102mm).
The driest month (with the least rainfall) is November (38mm).

Average rainfall days in August - Columbia, MS
  • Average rainfall days in August: 22.6 days

The month with the highest number of rainy days is August (22.6 days).
The month with the least rainy days is November (7.8 days).

Average snowfall in August - Columbia, MS
  • Average snowfall in August: 0mm

The month with the highest snowfall is December (10mm).
Months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in August - Columbia, MS
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (0.6 days).
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 - Columbia, MS
  • Average daylight in August: 13.2h

The month with the longest days is June (Average daylight: 14.2h).
The month with the shortest days is December (Average daylight: 10.1h).

  • Average sunshine in August: 10.4h

The month with the most sunshine is June (Average sunshine: 10.7h).
Months with the least sunshine are February and December (Average sunshine: 4.9).

Average sunshine days in August - Columbia, MS
  • Average sunshine days in August: 7 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is July (6.7 days).

Average UV index in August - Columbia, MS
  • Average UV index in August: 7

Months with the highest UV index are June, July and August (UV index 7).
Months with the lowest UV index are January and December (UV index 3).

Average cloud cover in August - Columbia, MS
  • Average cloud cover in August: 33

Months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in August - Columbia, MS
  • Average visibility in August: 8km

Months with the highest visibility are January, October and November (9km).
Months with the lowest visibility are February, March, April, May, June, July, August, September and December (8km).