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

May weather forecast and climate
Lead, SD

The last month of the spring, May, is an enjoyable month in Lead, South Dakota, with average temperature fluctuating between 39.9°F (4.4°C) and 61°F (16.1°C).

Temperature

In May, the average high-temperature increases, from a cool 52°F (11.1°C) in April, to a comfortable 61°F (16.1°C). In May, the average low-temperature is 39.9°F (4.4°C).

Rainfall

May is the month with the most rainfall. Rain falls for 12 days and accumulates 4.6" (117.9mm) of precipitation.

Snowfall

Months with snowfall are January through June, September through December. During May, Lead regularly aggregates up to 6.5" (165.1mm) of snow. In Lead, during the entire year, snow aggregates up to 144.9" (3680.4mm).

Daylight

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

Sunshine

The average sunshine is 9h.

UV index

The average daily maximum UV index in Lead is 8. A UV Index of 8 to 10 symbolizes a very high threat to health from unprotected exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 8 interpret into the following advice:
Take extra precautions. Fair-skinned individuals may get burned in less than 10 minutes. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in May in Lead?

In Lead, in May, the average high-temperature is 61°F (16.1°C), and the average low-temperature is 39.9°F (4.4°C).

How many days does it rain in May in Lead?

In Lead, in May, it is raining for 12 days, with typically 4.6" (117.9mm) of accumulated precipitation.

What is the wettest month in Lead?

The month with the most rainfall in Lead is May when the rain falls for 12 days and typically aggregates up to 4.6" (117.9mm) of precipitation.

How much does it snow in Lead in May?

During May, Lead regularly aggregates up to 6.5" (165.1mm) of snow.

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

In May, the average length of the day in Lead, South Dakota, is 14.8h.

How long on average sun shines in May in Lead?

The average sunshine in May is 9h.

What is the UV index intensity in May in Lead?

In May, the average daily maximum UV index in Lead is 8. A UV Index reading of 8 to 10 represents a very high hazard to health from the exposure to the Sun's UV radiation.
Average temperature in May - Lead, SD
  • Average high temperature in May: 16.1°C

The warmest month (with the highest average high temperature) is July (26.1°C).
The month with the lowest average high temperature is December (1.7°C).

  • Average low temperature in May: 4.4°C

The month with the highest average low temperature is July (13.3°C).
The coldest month (with the lowest average low temperature) is December (-8.9°C).

Average rainfall in May - Lead, SD
  • Average rainfall in May: 117.9mm

The wettest month (with the highest rainfall) is May (117.9mm).
The driest month (with the lowest rainfall) is January (34mm).

Average rainfall days in May - Lead, SD
  • Average rainfall days in May: 12 days

Months with the highest number of rainy days are May and June (12 days).
Months with the lowest number of rainy days are October and November (6 days).

Average snowfall in May - Lead, SD
  • Average snowfall in May: 165.1mm

The month with the highest snowfall is March (650.2mm).
Months with the lowest snowfall are July and August (0mm).

Average daylight in May / Average sunshine in May - Lead, 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: 9h

The month with most sunshine is July (Average sunshine: 11h).
Months with least sunshine are January, November and December (Average sunshine: 5).

Average UV index in May - Lead, SD
  • Average UV index in May: 8

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