May weather forecast
Oconee, IL

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Weather in May

The last month of the spring, May, is a pleasant month in Oconee, Illinois, with temperature in the range of an average high of 73°F (22.8°C) and an average low of 57°F (13.9°C).

Temperature

A rise in the average high-temperature is observed during May, moving from an enjoyable 63.1°F (17.3°C) in April to a pleasant 73°F (22.8°C). In the month of May, an average of 57°F (13.9°C) marks the low-temperature.

Humidity

In Oconee, the average relative humidity in May is 78%.

Rainfall

In Oconee, in May, it is raining for 15.2 days, with typically 1.93" (49mm) of accumulated precipitation. Throughout the year, there are 129.9 rainfall days, and 17.6" (447mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in May is 14h and 21min.
On the first day of May, sunrise is at 5:56 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:16 pm CDT.

Sunshine

In May, the average sunshine is 9.2h.

UV index

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In May, the average maximum UV index of 5 translates into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Jun 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May in Oconee?

Oconee in May has an average high-temperature of 73°F (22.8°C) and an average low-temperature of 57°F (13.9°C).

What is the average humidity in May?

The average relative humidity in May is 78%.

How many days does it rain in May?

In Oconee, in May, it is raining for 15.2 days, with typically 1.93" (49mm) of accumulated precipitation.

When it does not snow in Oconee?

In Oconee, snow does not fall in May through October.

Does it snow in May?

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

What is the average length of the day in May?

The average day length in May is 14h and 21min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 5:56 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:16 pm CDT.

How long on average sun shines in May?

The average sunshine duration in May is 9.2h.

What is the UV index reading in May?

In Oconee, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from 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
Oconee, IL

Average temperature in May - Oconee, IL
  • Average high temperature in May: 73°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34.3°F).

  • Average low temperature in May: 57°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).

Average pressure in May
Oconee, IL

Average pressure in May - Oconee, IL
  • Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in May
Oconee, IL

Average wind speed in May - Oconee, IL
  • Average wind speed in May: 8.5mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).

Average humidity in May
Oconee, IL

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

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).

Average rainfall in May
Oconee, IL

Average rainfall in May - Oconee, IL
  • Average rainfall in May: 1.93"

The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are February and December (0.98").

Average rainfall days in May
Oconee, IL

Average rainfall days in May - Oconee, IL
  • Average rainfall days in May: 15.2 days

The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (5.9 days).

Average snowfall in May
Oconee, IL

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

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

Average snowfall days in May
Oconee, IL

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

The months with the highest number of snowfall days are January and February (6.3 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
Oconee, IL

Average daylight in May / Average sunshine in May - Oconee, 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 1min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in May
Oconee, IL

Average sunshine days in May - Oconee, IL
  • Average sunshine days in May: 13.1 days

The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is May (13.1 days).

Average UV index in May
Oconee, IL

Average UV index in May - Oconee, 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).

Average cloud cover in May
Oconee, IL

Average cloud cover in May - Oconee, IL
  • Average cloud cover in May: 39

The months with the most cloud cover are January and February (Cloud cover 54).
The months with the least cloud cover are June and September (Cloud cover 29).

Average visibility in May
Oconee, IL

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

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

Oconee, Illinois, USA

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