May weather forecast
Rapid City, MI

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Weather in May

May, the last month of the spring in Rapid City, is a mild month, with an average temperature varying between 43.3°F (6.3°C) and 56.3°F (13.5°C).

Temperature

Rapid City sees an increase in average high-temperatures during May, moving from a frosty 44.8°F (7.1°C) in April to a mild 56.3°F (13.5°C). During May, the temperature in Rapid City tends to dip to an average of 43.3°F (6.3°C) at night.

Humidity

The months with the lowest humidity are April and May, with an average relative humidity of 77%.

Rainfall

In Rapid City, in May, it is raining for 14.3 days, with typically 2.4" (61mm) of accumulated precipitation. Throughout the year, there are 136.2 rainfall days, and 24.65" (626mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Rapid City, Michigan, are January through May, October through December. May is the last month it regularly snows in Rapid City. During 0.5 snowfall days, in May, Rapid City aggregates 0.04" (1mm) of snow. In Rapid City, during the entire year, snow falls for 89.8 days and aggregates up to 28.03" (712mm) of snow.

Daylight

In Rapid City, the average length of the day in May is 14h and 52min.
On the first day of May, sunrise is at 6:29 am and sunset at 8:46 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 9:19 pm EDT.

Sunshine

The average sunshine in May in Rapid City is 9h.

UV index

In Rapid City, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In May, the maximum UV index of 4 translates into these guidelines:
Act with care - The suggestion to avoid sunburn is emphasized. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May in Rapid City?

The high-temperature in Rapid City during May is 56.3°F (13.5°C) and the low-temperature is 43.3°F (6.3°C).

What is the least humid month in Rapid City?

The months with the lowest humidity in Rapid City are April and May, with an average relative humidity of 77%.

What is the average humidity in May in Rapid City?

In May, the average relative humidity in Rapid City is 77%.

How much does it rain in Rapid City in May?

In Rapid City, Michigan, in May, during 14.3 rainfall days, 2.4" (61mm) of precipitation is typically accumulated.

What is the last month it snows in Rapid City?

May is the last month it regularly snows in Rapid City, Michigan. During 0.5 snowfall days, in May, Rapid City aggregates 0.04" (1mm) of snow.

How many hours of daylight does Rapid City have in May?

The average day length in May is 14h and 52min.

When are sunrise and sunset in May in Rapid City?

On the first day of May in Rapid City, Michigan, sunrise is at 6:29 am and sunset at 8:46 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 9:19 pm EDT.

How long on average sun shines in May in Rapid City?

In May, the average sunshine duration is 9h.

What is the UV index reading in May in Rapid City?

The average daily maximum UV index in May in Rapid City, Michigan, is 4. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
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
Rapid City, MI

Average temperature in May - Rapid City, MI
  • Average high temperature in May: 56.3°F

The warmest month (with the highest average high temperature) is August (72.1°F).
The month with the lowest average high temperature is January (25.7°F).

  • Average low temperature in May: 43.3°F

The month with the highest average low temperature is August (60.4°F).
The coldest months (with the lowest average low temperature) are January and February (18.9°F).

Average pressure in May
Rapid City, MI

Average pressure in May - Rapid City, MI
  • Average pressure in May: 29.98"Hg

The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in May
Rapid City, MI

Average wind speed in May - Rapid City, MI
  • Average wind speed in May: 8.9mph

The windiest months (with the highest average wind speed) are January, November and December (12.6mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

Average humidity in May
Rapid City, MI

Average humidity in May - Rapid City, MI
  • Average humidity in May: 77%

The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and May (77%).

Average rainfall in May
Rapid City, MI

Average rainfall in May - Rapid City, MI
  • Average rainfall in May: 2.4"

The wettest month (with the highest rainfall) is October (2.91").
The driest month (with the least rainfall) is February (1.54").

Average rainfall days in May
Rapid City, MI

Average rainfall days in May - Rapid City, MI
  • Average rainfall days in May: 14.3 days

The month with the highest number of rainy days is October (17.9 days).
The month with the least rainy days is February (3.9 days).

Average snowfall in May
Rapid City, MI

Average snowfall in May - Rapid City, MI
  • Average snowfall in May: 0.04"

The month with the highest snowfall is January (6.57").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Rapid City, MI

Average snowfall days in May - Rapid City, MI
  • Average snowfall days in May: 0.5 days

The month with the highest number of snowfall days is January (21.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Rapid City, MI

Average daylight in May / Average sunshine in May - Rapid City, MI
  • 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: 9h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 1h and 42min).

Average sunshine days in May
Rapid City, MI

Average sunshine days in May - Rapid City, MI
  • Average sunshine days in May: 14.7 days

The month with the most sunshine days is May (14.7 days).
The month with the least sunshine days is January (4.7 days).

Average UV index in May
Rapid City, MI

Average UV index in May - Rapid City, MI
  • Average UV index in May: 4

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in May
Rapid City, MI

Average cloud cover in May - Rapid City, MI
  • Average cloud cover in May: 40

The month with the most cloud cover is January (Cloud cover 83).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in May
Rapid City, MI

Average visibility in May - Rapid City, MI
  • Average visibility in May: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

Rapid City, Michigan, USA

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