May weather forecast and climate
Columbia, MS

May, the last month of the spring, in Columbia, is also a moderately hot month, with average temperature fluctuating between 84.7°F (29.3°C) and 63.9°F (17.7°C).

Temperature

In Columbia, the average high-temperature slightly increases, from a warm 77.9°F (25.5°C) in April, to a still moderately hot 84.7°F (29.3°C). The average low-temperature, in May, is 63.9°F (17.7°C).

Heat index

In May, the average heat index is estimated at a hot 93.9°F (34.4°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy 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', 'feels like', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like activity, metabolic differences, wind, and pregnancy affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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.

Humidity

In Columbia, Mississippi, the average relative humidity in May is 75%.

Rainfall

In Columbia, in May, during 14.1 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. Throughout the year, there are 172.7 rainfall days, and 30.91" (785mm) of precipitation is accumulated.

Snowfall

In Columbia, Mississippi, snow does not fall in April through November.

Daylight

In Columbia, the average length of the day in May is 13.8h.

Sunshine

The average sunshine in Columbia, Mississippi, is 9.9h.

UV index

In May, the average daily maximum UV index in Columbia is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 in May interpret into the following advice:
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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in May in Columbia?

The average high-temperature, in May, in Columbia, Mississippi, is 84.7°F (29.3°C), while the average low-temperature is 63.9°F (17.7°C). In May, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that takes the relative humidity and factores it into the air temperature reading, is evaluated at 93.9°F (34.4°C).

What is the average humidity in May in Columbia?

In Columbia, the average relative humidity in May is 75%.

How many days does it rain in May in Columbia?

In Columbia, in May, it is raining for 14.1 days, with typically 2.48" (63mm) of accumulated precipitation.

When it does not snow in Columbia?

April through November are months without snowfall in Columbia.

How many hours of daylight does Columbia have in May?

In May, the average length of the day in Columbia is 13.8h.

How long on average sun shines in May in Columbia?

The average sunshine in May is 9.9h.

What is the UV index intensity in May in Columbia?

In May, the average daily maximum UV index in Columbia, Mississippi, is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to the UV radiation.
Average temperature in May - Columbia, MS
  • Average high temperature in May: 29.3°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 May: 17.7°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 May - Columbia, MS
  • Average pressure in May: 1015.7mbar

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 May - Columbia, MS
  • Average wind speed in May: 9km/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 May - Columbia, MS
  • Average humidity in May: 75%

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

Average rainfall in May - Columbia, MS
  • Average rainfall in May: 63mm

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

Average rainfall days in May - Columbia, MS
  • Average rainfall days in May: 14.1 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 May - Columbia, MS
  • Average snowfall in May: 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 May - Columbia, MS
  • Average snowfall days in May: 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 May / Average sunshine in May - Columbia, MS
  • Average daylight in May: 13.8h

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 May: 9.9h

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 May - Columbia, MS
  • Average sunshine days in May: 15.1 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 May - Columbia, MS
  • Average UV index in May: 6

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 May - Columbia, MS
  • Average cloud cover in May: 36

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 May - Columbia, MS
  • Average visibility in May: 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).