May weather forecast
Rapids City, IL

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Weather in May

May, the last month of the spring in Rapids City, is an agreeable month, with an average temperature varying between 53.4°F (11.9°C) and 70.3°F (21.3°C).

Temperature

The average high-temperature increases in May, moving from a moderate 59°F (15°C) in April to a pleasant 70.3°F (21.3°C). Rapids City observes an average nighttime low-temperature of 53.4°F (11.9°C) during the month of May.

Humidity

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

Rainfall

The month with the most rainfall is May, when the rain falls for 13.4 days and typically aggregates up to 1.61" (41mm) of precipitation.

Snowfall

May through August are months without snowfall.

Daylight

In Rapids City, the average length of the day in May is 14h and 33min.
On the first day of May in Rapids City, sunrise is at 5:56 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:28 pm CDT.

Sunshine

The average sunshine in May is 8.6h.

UV index

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: An average maximum UV index of 5 in May leads to these recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Rapids City in May?

May temperatures in Rapids City vary between a high-temperature of 70.3°F (21.3°C) and a low-temperature of 53.4°F (11.9°C).

What is the average humidity in May in Rapids City?

The average relative humidity in May in Rapids City is 77%.

What is the rainiest month in Rapids City?

The month with the most rainfall is May, when the rain falls for 13.4 days and typically aggregates up to 1.61" (41mm) of precipitation.

How many days does it rain in May in Rapids City?

In Rapids City, Illinois, in May, during 13.4 rainfall days, 1.61" (41mm) of precipitation is typically accumulated.

When it does not snow in Rapids City?

In Rapids City, Illinois, snow does not fall in May through August.

Does it snow in Rapids City in May?

In May, in Rapids City, Illinois, it doesn't snow. April is the latest month when it typically snows.

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

In Rapids City, the average day length in May is 14h and 33min.

When is the sunrise / sunset in May in Rapids City?

In May, on the first day of the month, sunrise is at 5:56 am and sunset at 7:59 pm. On the last day of the month, in Rapids City, Illinois, sunrise is at 5:29 am and sunset at 8:28 pm CDT.

How many hours of sunshine does Rapids City have in May?

The average sunshine duration in May is 8.6h.

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

The average daily maximum UV index in May in Rapids City, Illinois, is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Rapids City, IL

Average temperature in May - Rapids City, IL
  • Average high temperature in May: 70.3°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28.2°F).

  • Average low temperature in May: 53.4°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).

Average pressure in May
Rapids City, IL

Average pressure in May - Rapids City, IL
  • Average pressure in May: 29.95"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in May
Rapids City, IL

Average wind speed in May - Rapids City, IL
  • Average wind speed in May: 9mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).

Average humidity in May
Rapids City, IL

Average humidity in May - Rapids City, IL
  • Average humidity in May: 77%

The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).

Average rainfall in May
Rapids City, IL

Average rainfall in May - Rapids City, IL
  • Average rainfall in May: 1.61"

The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is December (0.35").

Average rainfall days in May
Rapids City, IL

Average rainfall days in May - Rapids City, IL
  • Average rainfall days in May: 13.4 days

The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is January (3.2 days).

Average snowfall in May
Rapids City, IL

Average snowfall in May - Rapids City, IL
  • Average snowfall in May: 0"

The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July and August (0").

Average snowfall days in May
Rapids City, IL

Average snowfall days in May - Rapids City, IL
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July and August (0 days).

Average daylight in May /
Average sunshine in May
Rapids City, IL

Average daylight in May / Average sunshine in May - Rapids City, IL
  • Average daylight in May: 14h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in May
Rapids City, IL

Average sunshine days in May - Rapids City, IL
  • Average sunshine days in May: 14.6 days

The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is June (14.4 days).

Average UV index in May
Rapids City, IL

Average UV index in May - Rapids City, IL
  • Average UV index in May: 5

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in May
Rapids City, IL

Average cloud cover in May - Rapids City, IL
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in May
Rapids City, IL

Average visibility in May - Rapids City, IL
  • Average visibility in May: 6mi

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

Rapids City, Illinois, USA

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