May weather forecast
Mount Olive, IL

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Weather in May

The last month of the spring, May, is a moderately hot month in Mount Olive, Illinois, with temperature in the range of an average low of 56.7°F (13.7°C) and an average high of 73.9°F (23.3°C).

Temperature

The shift into May is accompanied by a temperature increase, with the average high-temperature rising from an enjoyable 63.9°F (17.7°C) in April to a moderately hot 73.9°F (23.3°C). An average nighttime temperature of 56.7°F (13.7°C) is recorded during May.

Humidity

The average relative humidity in May in Mount Olive, Illinois, is 79%.

Rainfall

In Mount Olive, Illinois, in May, it is raining for 13.9 days, with typically 1.81" (46mm) of accumulated precipitation. In Mount Olive, during the entire year, the rain falls for 121.4 days and collects up to 14.72" (374mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Mount Olive, the average length of the day in May is 14h and 20min.
On the first day of May, sunrise is at 5:59 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:18 pm CDT.

Sunshine

In May, the average sunshine in Mount Olive is 9.3h.

UV index

In May, the average daily maximum UV index in Mount Olive is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 5 during May translates into the following directions:
Take necessary precautions - Protection from skin and eye injury is mandatory. Around midday, solar radiation is most harmful; hence, exposure should be limited. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
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Frequently asked questions

What are May temperatures in Mount Olive?

During May, Mount Olive experiences an average high-temperature of 73.9°F (23.3°C) and a low-temperature of 56.7°F (13.7°C).

What is the average humidity in May in Mount Olive?

In Mount Olive, the average relative humidity in May is 79%.

How many days does it rain in May in Mount Olive?

In Mount Olive, in May, it is raining for 13.9 days, with typically 1.81" (46mm) of accumulated precipitation.

When it does not snow in Mount Olive?

In Mount Olive, Illinois, snow does not fall in April through October.

How many hours of daylight does Mount Olive have in May?

In Mount Olive, Illinois, the average day length in May is 14h and 20min.

When is the sunrise / sunset in May in Mount Olive?

In May, on the first day of the month, sunrise is at 5:59 am and sunset at 7:52 pm. On the last day of the month, in Mount Olive, Illinois, sunrise is at 5:34 am and sunset at 8:18 pm CDT.

How long on average sun shines in May in Mount Olive?

In May, the average sunshine duration is 9.3h.

How high is the UV index in May in Mount Olive?

The average daily maximum UV index in May in Mount Olive is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
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
Mount Olive, IL

Average temperature in May - Mount Olive, IL
  • Average high temperature in May: 73.9°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in May: 56.7°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

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Average pressure in May
Mount Olive, IL

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in May
Mount Olive, IL

Average wind speed in May - Mount Olive, IL
  • Average wind speed in May: 7.8mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

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Average humidity in May
Mount Olive, IL

Average humidity in May - Mount Olive, IL
  • Average humidity in May: 79%

The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in May
Mount Olive, IL

Average rainfall in May - Mount Olive, IL
  • Average rainfall in May: 1.81"

The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is February (0.67").

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Average rainfall days in May
Mount Olive, IL

Average rainfall days in May - Mount Olive, IL
  • Average rainfall days in May: 13.9 days

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (5.8 days).

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Average snowfall in May
Mount Olive, IL

Average snowfall in May - Mount Olive, IL
  • Average snowfall in May: 0"

The month with the highest snowfall is December (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in May
Mount Olive, IL

Average snowfall days in May - Mount Olive, IL
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Mount Olive, IL

Average daylight in May / Average sunshine in May - Mount Olive, IL
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in May: 9h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days in May
Mount Olive, IL

Average sunshine days in May - Mount Olive, IL
  • Average sunshine days in May: 13.6 days

The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is July (12.5 days).

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Average UV index in May
Mount Olive, IL

Average UV index in May - Mount Olive, IL
  • 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, November and December (UV index 2).

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Average cloud cover in May
Mount Olive, IL

Average cloud cover in May - Mount Olive, IL
  • Average cloud cover in May: 38

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).

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Average visibility in May
Mount Olive, IL

Average visibility in May - Mount Olive, 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).

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Mount Olive, Illinois, USA

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