June weather forecast
Altamont, IL

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Weather in June

The first month of the summer, June, is still a warm month in Altamont, Illinois, with temperature in the range of an average high of 81.7°F (27.6°C) and an average low of 65.5°F (18.6°C).

Temperature

As May transitions into June, a subtle temperature shift is observed, with average highs adjusting from 73.6°F (23.1°C) to a still moderately hot 81.7°F (27.6°C). An average low-temperature of 65.5°F (18.6°C) marks the nights throughout June.

Heat index

June's mean heat index is computed to be a tropical 87.8°F (31°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.

Humidity

In June, the average relative humidity is 78%.

Rainfall

In June, the rain falls for 14.5 days. Throughout June, 3.11" (79mm) of precipitation is accumulated. Throughout the year, there are 141.3 rainfall days, and 26.77" (680mm) of precipitation is accumulated.

Snowfall

In Altamont, snow does not fall in April through October.

Daylight

With an average of 14h and 54min of daylight, June has the longest days of the year in Altamont.
On the first day of June, sunrise is at 5:30 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:24 pm CDT.

Sunshine

The month with the most sunshine is June, with an average of 10.5h of sunshine.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A maximum high daily UV index of 6 during June translates into the following directions:
Shun overexposure. Protection from sun ravages is indispensable. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in June?

An average high-temperature, in June, in Altamont, is 81.7°F (27.6°C) and the average low-temperature is 65.5°F (18.6°C). In June, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is computed to be 87.8°F (31°C).

What is the average humidity in June?

The average relative humidity in June is 78%.

How many days does it rain in June?

In June, the rain falls for 14.5 days. Throughout June, 3.11" (79mm) of precipitation is accumulated.

When it does not snow?

April through October are months without snowfall in Altamont.

When are the longest days?

With an average of 14h and 54min of daylight, June has the longest days of the year.

How many hours of daylight does Altamont have in June?

The average day length in June is 14h and 52min.

When are sunrise and sunset in June?

On the first day of June, sunrise is at 5:30 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:24 pm CDT.

What month has the most sunshine in Altamont?

With an average of 10.5h of sunshine, June has the most sunshine of the year in Altamont.

How many hours of sunshine does Altamont have in June?

In Altamont, the average sunshine duration in June is 10.5h.

When is the highest UV index?

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

What is the UV index intensity in June?

In June, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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 June
Altamont, IL

Average temperature in June - Altamont, IL
  • Average high temperature in June: 81.7°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in June: 65.5°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure in June
Altamont, IL

Average pressure in June - Altamont, 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
Altamont, IL

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

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity in June
Altamont, IL

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

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

Average rainfall in June
Altamont, IL

Average rainfall in June - Altamont, IL
  • Average rainfall in June: 3.11"

The wettest month (with the highest rainfall) is April (3.35").
The driest month (with the least rainfall) is February (1.38").

Average rainfall days in June
Altamont, IL

Average rainfall days in June - Altamont, IL
  • Average rainfall days in June: 14.5 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in June
Altamont, IL

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

The month with the highest snowfall is January (2.01").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in June
Altamont, IL

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

The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

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

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 June: 10h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in June
Altamont, IL

Average sunshine days in June - Altamont, IL
  • Average sunshine days in June: 12.4 days

The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in June
Altamont, IL

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

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 June
Altamont, IL

Average cloud cover in June - Altamont, IL
  • Average cloud cover in June: 29

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June and September (Cloud cover 29).

Average visibility in June
Altamont, IL

Average visibility in June - Altamont, 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).

Altamont, Illinois, USA

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