May weather forecast
Columbia, SD

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Weather in May

The last month of the spring, May, is a refreshing month in Columbia, South Dakota, with an average temperature fluctuating between 66.7°F (19.3°C) and 48.2°F (9°C).

Temperature

Columbia sees a rise in temperature during May, with average high-temperatures transitioning from a cool 54.1°F (12.3°C) in April to an enjoyable 66.7°F (19.3°C). An average low-temperature of 48.2°F (9°C) is noted during the nights in May.

Humidity

The average relative humidity in May is 66%.

Rainfall

In May, the rain falls for 13 days. Throughout May, 2.32" (59mm) of precipitation is accumulated. In Columbia, South Dakota, during the entire year, the rain falls for 97.2 days and collects up to 18.35" (466mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows in Columbia. During 0.3 snowfall days, in May, Columbia aggregates 0.08" (2mm) of snow. In Columbia, during the entire year, snow falls for 54.8 days and aggregates up to 19.13" (486mm) of snow.

Daylight

In Columbia, the average length of the day in May is 14h and 56min.
On the first day of the month, sunrise is at 6:19 am and sunset at 8:40 pm. On the last day of May, sunrise is at 5:47 am and sunset at 9:14 pm CDT.

Sunshine

In Columbia, the average sunshine in May is 9h.

UV index

In Columbia, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, the maximum UV index of 5 transforms into these recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Enhance your sun protection with tightly woven, yet airy clothing. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Columbia in May?

An average high-temperature, in May, in Columbia, is 66.7°F (19.3°C) and the average low-temperature is 48.2°F (9°C).

What is the average humidity in May in Columbia?

The average relative humidity in May in Columbia is 66%.

How much does it rain in Columbia in May?

In May, the rain falls for 13 days. Throughout May, 2.32" (59mm) of precipitation is accumulated.

What is the last month it snows in Columbia?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Columbia aggregates 0.08" (2mm) of snow.

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

In Columbia, the average day length in May is 14h and 56min.

When is the sunrise / sunset in May in Columbia?

On the first day of May in Columbia, South Dakota, sunrise is at 6:19 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 9:14 pm CDT.

How many hours of sunshine does Columbia have in May?

In Columbia, the average sunshine duration in May is 9h.

What is the UV index intensity in May in Columbia?

In May, the average daily maximum UV index in Columbia is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Columbia, SD

Average temperature in May - Columbia, SD
  • Average high temperature in May: 66.7°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (20.7°F).

  • Average low temperature in May: 48.2°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).

Average pressure in May
Columbia, SD

Average pressure in May - Columbia, SD
  • Average pressure in May: 29.92"Hg

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in May
Columbia, SD

Average wind speed in May - Columbia, SD
  • Average wind speed in May: 9.7mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).

Average humidity in May
Columbia, SD

Average humidity in May - Columbia, SD
  • Average humidity in May: 66%

The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are August and September (60%).

Average rainfall in May
Columbia, SD

Average rainfall in May - Columbia, SD
  • Average rainfall in May: 2.32"

The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in May
Columbia, SD

Average rainfall days in May - Columbia, SD
  • Average rainfall days in May: 13 days

The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (2 days).

Average snowfall in May
Columbia, SD

Average snowfall in May - Columbia, SD
  • Average snowfall in May: 0.08"

The month with the highest snowfall is January (3.82").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Columbia, SD

Average snowfall days in May - Columbia, SD
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Columbia, SD

Average daylight in May / Average sunshine in May - Columbia, SD
  • Average daylight in May: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in May: 9h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in May
Columbia, SD

Average sunshine days in May - Columbia, SD
  • Average sunshine days in May: 15.7 days

The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (12.7 days).

Average UV index in May
Columbia, SD

Average UV index in May - Columbia, SD
  • Average UV index in May: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).

Average cloud cover in May
Columbia, SD

Average cloud cover in May - Columbia, SD
  • Average cloud cover in May: 39

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 23).

Average visibility in May
Columbia, SD

Average visibility in May - Columbia, SD
  • Average visibility in May: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Columbia, South Dakota, USA

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