May weather forecast
Richfield Heights, SD

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Weather in May

May, the last month of the spring in Richfield Heights, is a refreshing month, with an average temperature varying between 66.7°F (19.3°C) and 48.2°F (9°C).

Temperature

May's onset witnesses a shift in the average high-temperature, moving from a fresh 54.1°F (12.3°C) in April to an enjoyable 66.7°F (19.3°C). During the month of May, Richfield Heights's nighttime temperature lowers to an average of 48.2°F (9°C).

Humidity

In May, the average relative humidity in Richfield Heights is 66%.

Rainfall

In Richfield Heights, in May, it is raining for 13 days, with typically 2.32" (59mm) of accumulated precipitation. In Richfield Heights, 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. During 0.3 snowfall days, in May, Richfield Heights aggregates 0.08" (2mm) of snow. Throughout the year, in Richfield Heights, South Dakota, there are 54.8 snowfall days, and 19.13" (486mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 56min.
On the first day of May, sunrise is at 6:20 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 9:15 pm CDT.

Sunshine

In Richfield Heights, the average sunshine in May is 9h.

UV index

In May, the average daily maximum UV index in Richfield Heights is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: A daily high UV index of 5 in May leads to these guidelines:
Heed the precautions - Suggestions to avoid sunburn are made. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Frequently asked questions

What are the temperatures in Richfield Heights in May?

During May, Richfield Heights experiences an average high-temperature of 66.7°F (19.3°C) and a low-temperature of 48.2°F (9°C).

What is the average humidity in May in Richfield Heights?

The average relative humidity in May in Richfield Heights is 66%.

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

In Richfield Heights, during May, the rain falls for 13 days and regularly aggregates up to 2.32" (59mm) of precipitation.

What is the last month it snows in Richfield Heights?

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

How many hours of daylight does Richfield Heights have in May?

In May, the average day length in Richfield Heights, South Dakota, is 14h and 56min.

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

On the first day of May in Richfield Heights, sunrise is at 6:20 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 9:15 pm CDT.

How many hours of sunshine does Richfield Heights have in May?

In Richfield Heights, South Dakota, the average sunshine duration in May is 9h.

How high is the UV index in May in Richfield Heights?

In Richfield Heights, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe 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
Richfield Heights, SD

Average temperature in May - Richfield Heights, 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).

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Average pressure in May
Richfield Heights, SD

Average pressure in May - Richfield Heights, 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).

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Average wind speed in May
Richfield Heights, SD

Average wind speed in May - Richfield Heights, 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).

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Average humidity in May
Richfield Heights, SD

Average humidity in May - Richfield Heights, 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%).

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Average rainfall in May
Richfield Heights, SD

Average rainfall in May - Richfield Heights, 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").

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Average rainfall days in May
Richfield Heights, SD

Average rainfall days in May - Richfield Heights, 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).

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Average snowfall in May
Richfield Heights, SD

Average snowfall in May - Richfield Heights, 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").

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Average snowfall days in May
Richfield Heights, SD

Average snowfall days in May - Richfield Heights, 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).

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

Average daylight in May / Average sunshine in May - Richfield Heights, 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).

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Average sunshine days in May
Richfield Heights, SD

Average sunshine days in May - Richfield Heights, 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).

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Average UV index in May
Richfield Heights, SD

Average UV index in May - Richfield Heights, 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).

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Average cloud cover in May
Richfield Heights, SD

Average cloud cover in May - Richfield Heights, 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).

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Average visibility in May
Richfield Heights, SD

Average visibility in May - Richfield 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).

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Richfield Heights, South Dakota, USA

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