May weather forecast
Rome, IL

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Weather in May

May, the last month of the spring in Rome, is an agreeable month, with an average temperature ranging between max 71.2°F (21.8°C) and min 54.1°F (12.3°C).

Temperature

With the onset of May, Rome sees a temperature rise, with the average high-temperature moving from April's refreshing 60.1°F (15.6°C) to an agreeable 71.2°F (21.8°C). An average low-temperature of 54.1°F (12.3°C) is noted in Rome during the month of May.

Humidity

The average relative humidity in May in Rome is 78%.

Rainfall

May is the month with the most rainfall. Rain falls for 16.2 days and accumulates 2.36" (60mm) of precipitation.

Snowfall

In Rome, snow does not fall in May through September.

Daylight

In May, the average length of the day is 14h and 29min.
On the first day of the month, sunrise is at 5:55 am and sunset at 7:54 pm. On the last day of May, in Rome, sunrise is at 5:28 am and sunset at 8:23 pm CDT.

Sunshine

In Rome, the average sunshine in May is 8.9h.

UV index

In Rome, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: During May, 5 as the daily maximum UV index converts into the following advice:
Be vigilant - A duty to shield skin and eyes from injury exists. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures in Rome?

The high-temperature, in May, in Rome, records 71.2°F (21.8°C), while the low-temperature is 54.1°F (12.3°C).

What is the average humidity in May in Rome?

The average relative humidity in May is 78%.

What is the wettest month in Rome?

The month with the most rainfall in Rome, Illinois, is May, when the rain falls for 16.2 days and typically aggregates up to 2.36" (60mm) of precipitation.

How much does it rain in Rome in May?

In Rome, in May, it is raining for 16.2 days, with typically 2.36" (60mm) of accumulated precipitation.

When it does not snow in Rome?

May through September are months without snowfall.

Does it snow in Rome in May?

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

How many hours of daylight does Rome have in May?

In May, the average day length is 14h and 29min.

When are sunrise and sunset in May in Rome?

On the first day of May, sunrise is at 5:55 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 8:23 pm CDT.

How many hours of sunshine does Rome have in May?

The average sunshine duration in May in Rome, Illinois, is 8.9h.

What is the UV index intensity in May in Rome?

In Rome, Illinois, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
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
Rome, IL

Average temperature in May - Rome, IL
  • Average high temperature in May: 71.2°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in May: 54.1°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 (18.1°F).

Average pressure in May
Rome, IL

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in May
Rome, IL

Average wind speed in May - Rome, IL
  • Average wind speed in May: 8.9mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in May
Rome, IL

Average humidity in May - Rome, IL
  • Average humidity in May: 78%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall in May
Rome, IL

Average rainfall in May - Rome, IL
  • Average rainfall in May: 2.36"

The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in May
Rome, IL

Average rainfall days in May - Rome, IL
  • Average rainfall days in May: 16.2 days

The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is February (4.5 days).

Average snowfall in May
Rome, IL

Average snowfall in May - Rome, IL
  • Average snowfall in May: 0"

The month with the highest snowfall is January (1.93").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Rome, IL

Average snowfall days in May - Rome, IL
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Rome, IL

Average daylight in May / Average sunshine in May - Rome, 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 18min).

  • Average sunshine in May: 8h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in May
Rome, IL

Average sunshine days in May - Rome, IL
  • Average sunshine days in May: 12.4 days

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (12.4 days).

Average UV index in May
Rome, IL

Average UV index in May - Rome, IL
  • Average UV index in May: 5

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in May
Rome, IL

Average cloud cover in May - Rome, IL
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 31).

Average visibility in May
Rome, IL

Average visibility in May - Rome, IL
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).

Rome, Illinois, USA

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