Pierre
South Dakota, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Pierre, SD

The Capitol Dome building in Pierre, South Dakota, set in a beautiful tree park, reflected in the waterfront
The Capitol Dome building in Pierre, South Dakota, set in a beautiful tree park, reflected in the waterfront
The last month of the spring, May, is a pleasant month in Pierre, South Dakota, with temperature in the range of an average high of 69.8°F (21°C) and an average low of 44.6°F (7°C).

Temperature

In Pierre, the average high-temperature rises, from a moderate 59°F (15°C) in April, to a pleasant 69.8°F (21°C). The average low-temperature, in May, is 44.6°F (7°C).

Rainfall

In Pierre, during May, the rain falls for 10 days and regularly aggregates up to 2.5" (63mm) of precipitation. In Pierre, during the entire year, the rain falls for 87 days and collects up to 14.9" (379mm) of precipitation.

Daylight

In May, the average length of the day in Pierre is 14.8h.

Sunshine

In May, the average sunshine is 10h.

UV index

In May, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 7 interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in May in Pierre?

In May, in Pierre, South Dakota, the average high-temperature is 69.8°F (21°C), and the average low-temperature is 44.6°F (7°C).

How much does it rain in Pierre in May?

In Pierre, in May, during 10 rainfall days, 2.5" (63mm) of precipitation is typically accumulated.

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

The average length of the day in May is 14.8h.

How many hours of sunshine does Pierre have in May?

In May, the average sunshine in Pierre is 10h.

What is the UV index reading in May in Pierre?

In May, the average daily maximum UV index in Pierre, South Dakota, is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV rays.
Average temperature in May - Pierre, SD
  • Average high temperature in May: 70°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in May: 45°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (7°F).

Average rainfall in May - Pierre, SD
  • Average rainfall in May: 2.5"

The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the lowest rainfall) is January (0.2").

Average rainfall days in May - Pierre, SD
  • Average rainfall days in May: 10 days

Months with the highest number of rainy days are May and June (10 days).
Months with the lowest number of rainy days are October and November (5 days).

Average daylight in May / Average sunshine in May - Pierre, SD
  • Average daylight in May: 14.8h

The month with the longest days is June (Average daylight: 15.5h).
The month with shortest days is December (Average daylight: 8.9h).

  • Average sunshine in May: 10h

The month with most sunshine is July (Average sunshine: 12h).
Months with least sunshine are November and December (Average sunshine: 5).

Average UV index in May - Pierre, SD
  • Average UV index in May: 7

The month with the highest UV index is July (UV index 9).
Months with the lowest UV index are January and December (UV index 1).