Thief River Falls
Minnesota, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Thief River Falls, MN

May, the last month of the spring, in Thief River Falls, is a pleasant month, with average temperature varying between 68°F (20°C) and 41°F (5°C).

Temperature

In May, the average high-temperature soars, from a fresh 51.8°F (11°C) in April, to a pleasant 68°F (20°C). In Thief River Falls, in May, the average low-temperature is 41°F (5°C).

Rainfall

In Thief River Falls, Minnesota, during May, the rain falls for 10 days and regularly aggregates up to 2.5" (63mm) of precipitation. Throughout the year, there are 101 rainfall days, and 20.6" (522mm) of precipitation is accumulated.

Daylight

In May, the average length of the day in Thief River Falls, Minnesota, is 15.2h.

Sunshine

In Thief River Falls, the average sunshine is 9h.

UV index

The average daily maximum UV index in Thief River Falls is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to the UV radiation for average individuals.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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 Thief River Falls?

The average high-temperature, in May, in Thief River Falls, Minnesota, is 68°F (20°C), while the average low-temperature is 41°F (5°C).

How many days does it rain in May in Thief River Falls?

In Thief River Falls, Minnesota, during May, the rain falls for 10 days and regularly aggregates up to 2.5" (63mm) of precipitation.

How many hours of daylight does Thief River Falls have in May?

The average length of the day in May is 15.2h.

How many hours of sunshine does Thief River Falls have in May?

The average sunshine in May is 9h.

How high is the UV index in May in Thief River Falls?

In May, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to the UV radiation.
Average temperature in May - Thief River Falls, MN
  • Average high temperature in May: 68°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (12°F).

  • Average low temperature in May: 41°F

The month with the highest average low temperature is July (55°F).
The coldest month (with the lowest average low temperature) is January (-8°F).

Average rainfall in May - Thief River Falls, MN
  • Average rainfall in May: 2.5"

The wettest month (with the highest rainfall) is June (3.6").
The driest month (with the lowest rainfall) is February (0.4").

Average rainfall days in May - Thief River Falls, MN
  • Average rainfall days in May: 10 days

The month with the highest number of rainy days is June (11 days).
Months with the lowest number of rainy days are February and November (6 days).

Average daylight in May / Average sunshine in May - Thief River Falls, MN
  • Average daylight in May: 15.2h

The month with the longest days is June (Average daylight: 16h).
The month with shortest days is December (Average daylight: 8.4h).

  • Average sunshine in May: 9h

The month with most sunshine is July (Average sunshine: 11h).
Months with least sunshine are November and December (Average sunshine: 3).

Average UV index in May - Thief River Falls, MN
  • Average UV index in May: 6

The month with the highest UV index is July (UV index 8).
Months with the lowest UV index are January, February, November and December (UV index 1).