June weather forecast
Olney, IL

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Weather in June

The first month of the summer, June, is still a warm month in Olney, Illinois, with an average temperature ranging between max 82.2°F (27.9°C) and min 65.7°F (18.7°C).

Temperature

Olney's transition into June is marked by a minor temperature shift, moving from 73.9°F (23.3°C) in May to a still warm 82.2°F (27.9°C). During the nights in June, Olney observes an average low-temperature of 65.7°F (18.7°C).

Heat index

The average heat index in June is calculated to be a hot 89.6°F (32°C). If exposure and activity persist, fatigue could ensue, possibly leading to heat cramps.
Research indicates the heat index considers values in shaded locales and with light winds. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values remain especially vital for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

The average relative humidity in June in Olney is 78%.

Rainfall

In June, in Olney, the rain falls for 14.9 days. Throughout June, 2.64" (67mm) of precipitation is accumulated. In Olney, during the entire year, the rain falls for 152.3 days and collects up to 27.99" (711mm) of precipitation.

Snowfall

In Olney, Illinois, snow does not fall in May through October.

Daylight

June has the longest days of the year, with an average of 14h and 48min of daylight.
On the first day of the month, sunrise is at 5:28 am and sunset at 8:11 pm. On the last day of June, in Olney, Illinois, sunrise is at 5:31 am and sunset at 8:21 pm CDT.

Sunshine

The month with the most sunshine in Olney is June, with an average of 10.6h of sunshine.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: A daily maximum UV index of 6 in June translates into the following instructions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average June temperature in Olney?

During June, Olney experiences an average high-temperature of 82.2°F (27.9°C) and a low-temperature of 65.7°F (18.7°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in June is calculated to be 89.6°F (32°C).

What is the average humidity in June in Olney?

In June, the average relative humidity in Olney, Illinois, is 78%.

How much does it rain in Olney in June?

In June, the rain falls for 14.9 days. Throughout June, 2.64" (67mm) of precipitation is accumulated.

When it does not snow in Olney?

May through October are months without snowfall in Olney, Illinois.

When are the longest days in Olney?

With an average of 14h and 48min of daylight, June has the longest days of the year.

How many hours of daylight does Olney have in June?

The average day length in June in Olney, Illinois, is 14h and 50min.

When is the sunrise / sunset in June in Olney?

In June, on the first day of the month, sunrise is at 5:28 am and sunset at 8:11 pm. On the last day of the month, in Olney, sunrise is at 5:31 am and sunset at 8:21 pm CDT.

What month has the most sunshine in Olney?

June has the most sunshine of the year, with an average of 10.6h of sunshine.

How long on average sun shines in June in Olney?

In Olney, the average sunshine duration in June is 10.6h.

What are the months with the highest UV index in Olney?

The months with the highest UV index in Olney are May through August, with an average maximum UV index of 6.

What is the UV index intensity in June in Olney?

In Olney, the average daily maximum UV index in June is 6. A UV Index value of 6 to 7 symbolizes a high health 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 June
Olney, IL

Average temperature in June - Olney, IL
  • Average high temperature in June: 82.2°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 (36.7°F).

  • Average low temperature in June: 65.7°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 (24.3°F).

Average pressure in June
Olney, IL

Average pressure in June - Olney, IL
  • Average pressure in June: 29.93"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in June
Olney, IL

Average wind speed in June - Olney, IL
  • Average wind speed in June: 7.1mph

The windiest months (with the highest average wind speed) are January and February (10.2mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).

Average humidity in June
Olney, IL

Average humidity in June - Olney, IL
  • Average humidity in June: 78%

The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (70%).

Average rainfall in June
Olney, IL

Average rainfall in June - Olney, IL
  • Average rainfall in June: 2.64"

The wettest month (with the highest rainfall) is April (4.09").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days in June
Olney, IL

Average rainfall days in June - Olney, IL
  • Average rainfall days in June: 14.9 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (8.8 days).

Average snowfall in June
Olney, IL

Average snowfall in June - Olney, IL
  • Average snowfall in June: 0"

The month with the highest snowfall is January (1.54").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in June
Olney, IL

Average snowfall days in June - Olney, IL
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in June /
Average sunshine in June
Olney, IL

Average daylight in June / Average sunshine in June - Olney, IL
  • Average daylight in June: 14h and 5min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in June: 10h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in June
Olney, IL

Average sunshine days in June - Olney, IL
  • Average sunshine days in June: 11.6 days

The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (11.2 days).

Average UV index in June
Olney, IL

Average UV index in June - Olney, IL
  • Average UV index in June: 6

The months with the highest UV index are May, 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 June
Olney, IL

Average cloud cover in June - Olney, IL
  • Average cloud cover in June: 28

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June and August (Cloud cover 28).

Average visibility in June
Olney, IL

Average visibility in June - Olney, IL
  • Average visibility in June: 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).

Olney, Illinois, USA

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