May weather forecast
Ree Heights, SD

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Weather in May

May, the last month of the spring in Ree Heights, is an enjoyable month, with an average temperature fluctuating between 48.2°F (9°C) and 66.7°F (19.3°C).

Temperature

Ree Heights's transition into May sees a rise in the average high-temperature, advancing from a cool 54.5°F (12.5°C) in April to a refreshing 66.7°F (19.3°C). In the month of May, Ree Heights experiences an average low-temperature of 48.2°F (9°C).

Humidity

The average relative humidity in May is 68%.

Rainfall

In May, the rain falls for 13.6 days. Throughout May, 2.09" (53mm) of precipitation is accumulated. In Ree Heights, during the entire year, the rain falls for 97.3 days and collects up to 16.73" (425mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in Ree Heights. During 0.2 snowfall days, in May, Ree Heights aggregates 0.04" (1mm) of snow. In Ree Heights, South Dakota, during the entire year, snow falls for 47.1 days and aggregates up to 16.06" (408mm) of snow.

Daylight

In May, the average length of the day is 14h and 50min.
On the first day of the month, sunrise is at 6:25 am and sunset at 8:41 pm. On the last day of May, in Ree Heights, sunrise is at 5:55 am and sunset at 9:14 pm CDT.

Sunshine

The average sunshine in May is 8.9h.

UV index

In Ree Heights, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 5 in May transforms into the following instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A hat with a broad brim is indispensable, filtering out up to half of UV rays. 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 Ree Heights in May?

In May, in Ree Heights, the average high-temperature 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 Ree Heights?

In Ree Heights, the average relative humidity in May is 68%.

How many days does it rain in May in Ree Heights?

In Ree Heights, in May, during 13.6 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

What is the last month it snows in Ree Heights?

May is the last month it regularly snows in Ree Heights. During 0.2 snowfall days, in May, Ree Heights aggregates 0.04" (1mm) of snow.

What is the average length of the day in May in Ree Heights?

The average day length in May in Ree Heights is 14h and 50min.

What time are sunrise and sunset in May in Ree Heights?

On the first day of May in Ree Heights, South Dakota, sunrise is at 6:25 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 9:14 pm CDT.

How long on average sun shines in May in Ree Heights?

In May, the average sunshine duration in Ree Heights, South Dakota, is 8.9h.

What is the UV index reading in May in Ree Heights?

In Ree Heights, South Dakota, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Ree Heights, SD

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

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (23.4°F).

  • Average low temperature in May: 48.2°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).

Average pressure in May
Ree Heights, SD

Average pressure in May - Ree Heights, SD
  • Average pressure in May: 29.91"Hg

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in May
Ree Heights, SD

Average wind speed in May - Ree Heights, SD
  • Average wind speed in May: 10.2mph

The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).

Average humidity in May
Ree Heights, SD

Average humidity in May - Ree Heights, SD
  • Average humidity in May: 68%

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

Average rainfall in May
Ree Heights, SD

Average rainfall in May - Ree Heights, SD
  • Average rainfall in May: 2.09"

The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in May
Ree Heights, SD

Average rainfall days in May - Ree Heights, SD
  • Average rainfall days in May: 13.6 days

The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (1.3 days).

Average snowfall in May
Ree Heights, SD

Average snowfall in May - Ree Heights, SD
  • Average snowfall in May: 0.04"

The month with the highest snowfall is February (4.21").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Ree Heights, SD

Average snowfall days in May - Ree Heights, SD
  • Average snowfall days in May: 0.2 days

The months with the highest number of snowfall days are January and February (10.1 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in May /
Average sunshine in May
Ree Heights, SD

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

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in May: 8h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in May
Ree Heights, SD

Average sunshine days in May - Ree Heights, SD
  • Average sunshine days in May: 14.8 days

The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is June (12.4 days).

Average UV index in May
Ree Heights, SD

Average UV index in May - Ree Heights, SD
  • Average UV index in May: 5

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

Average cloud cover in May
Ree Heights, SD

Average cloud cover in May - Ree Heights, SD
  • Average cloud cover in May: 40

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 24).

Average visibility in May
Ree Heights, SD

Average visibility in May - Ree Heights, 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).

Ree Heights, South Dakota, USA

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