June weather forecast
Porterfield, IL

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Weather in June

The first month of the summer, June, is a moderately hot month in Porterfield, Illinois, with an average temperature fluctuating between 62.1°F (16.7°C) and 79°F (26.1°C).

Temperature

In Porterfield, the onset of June comes with a modest high-temperature shift, transitioning from May's agreeable 71.1°F (21.7°C) to a moderately hot 79°F (26.1°C). June brings with it a nighttime average temperature of 62.1°F (16.7°C).

Humidity

In Porterfield, the average relative humidity in June is 81%.

Rainfall

In Porterfield, during June, the rain falls for 17.4 days and regularly aggregates up to 3.23" (82mm) of precipitation. In Porterfield, during the entire year, the rain falls for 151.3 days and collects up to 30.16" (766mm) of precipitation.

Snowfall

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

Daylight

With an average of 15h and 6min of daylight, June has the longest days of the year.
On the first day of June, sunrise is at 5:26 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:33 pm CDT.

Sunshine

With an average of 10h of sunshine, June has the most sunshine of the year.

UV index

June and July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 6 during June translates into these guidelines:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are June temperatures?

Porterfield in June has an average high-temperature of 79°F (26.1°C) and an average low-temperature of 62.1°F (16.7°C).

What is the average humidity in June?

The average relative humidity in June is 81%.

How many days does it rain in June?

In Porterfield, during June, the rain falls for 17.4 days and regularly aggregates up to 3.23" (82mm) of precipitation.

When it does not snow?

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

When are the longest days?

June has the longest days of the year, with an average of 15h and 6min of daylight.

How many hours of daylight does Porterfield have in June?

In Porterfield, the average day length in June is 15h and 5min.

When are sunrise and sunset in June?

In June, on the first day of the month, sunrise is at 5:26 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:33 pm CDT.

What month has the most sunshine?

June has the most sunshine of the year, with an average of 10h of sunshine.

How many hours of sunshine does Porterfield have in June?

The average sunshine duration in June is 10h.

What are the months with the highest UV index?

The months with the highest UV index are June and July, 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 of 6 to 7 symbolizes a high hazard to health from unsafe 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
Porterfield, IL

Average temperature in June - Porterfield, IL
  • Average high temperature in June: 79°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.3°F).

  • Average low temperature in June: 62.1°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

Average pressure in June
Porterfield, IL

Average pressure in June - Porterfield, IL
  • Average pressure in June: 29.91"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in June
Porterfield, IL

Average wind speed in June - Porterfield, IL
  • Average wind speed in June: 7.8mph

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 June
Porterfield, IL

Average humidity in June - Porterfield, IL
  • Average humidity in June: 81%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).

Average rainfall in June
Porterfield, IL

Average rainfall in June - Porterfield, IL
  • Average rainfall in June: 3.23"

The wettest month (with the highest rainfall) is May (4.41").
The driest months (with the least rainfall) are January and December (1.57").

Average rainfall days in June
Porterfield, IL

Average rainfall days in June - Porterfield, IL
  • Average rainfall days in June: 17.4 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (5.9 days).

Average snowfall in June
Porterfield, IL

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

The month with the highest snowfall is February (3.7").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in June
Porterfield, IL

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

The month with the highest number of snowfall days is January (11.2 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
Porterfield, IL

Average daylight in June / Average sunshine in June - Porterfield, IL
  • Average daylight in June: 15h and 1min

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 June: 10h and 0min

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 54min).

Average sunshine days in June
Porterfield, IL

Average sunshine days in June - Porterfield, IL
  • Average sunshine days in June: 10.9 days

The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in June
Porterfield, IL

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

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

Average cloud cover in June
Porterfield, IL

Average cloud cover in June - Porterfield, IL
  • Average cloud cover in June: 33

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 32).

Average visibility in June
Porterfield, IL

Average visibility in June - Porterfield, IL
  • Average visibility in June: 6mi

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

Porterfield, Illinois, USA

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