June weather forecast
Palmyra, IL

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Weather in June

June, the first month of the summer in Palmyra, is a moderately hot month, with an average temperature ranging between max 81.7°F (27.6°C) and min 64.9°F (18.3°C).

Temperature

With the onset of June, Palmyra's weather sees a minor temperature rise, transitioning from an agreeable 73.2°F (22.9°C) in May to a warm 81.7°F (27.6°C). The month of June records an average low-temperature of 64.9°F (18.3°C).

Heat index

In June, the average heat index is estimated at a hot 87.8°F (31°C). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.

Humidity

In Palmyra, the average relative humidity in June is 79%.

Rainfall

June is the month with the most rainfall. Rain falls for 16.3 days and accumulates 3.86" (98mm) of precipitation.

Snowfall

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

Daylight

With an average of 14h and 54min of daylight, June has the longest days of the year.
On the first day of the month, sunrise is at 5:34 am and sunset at 8:21 pm. On the last day of June, sunrise is at 5:36 am and sunset at 8:31 pm CDT.

Sunshine

June has the most sunshine of the year, with an average of 10.3h of sunshine.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index, 6 in June, converts into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average June temperature?

The average high-temperature, in June, in Palmyra, is 81.7°F (27.6°C), while the average low-temperature is 64.9°F (18.3°C). In June, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 87.8°F (31°C).

What is the average humidity in June?

The average relative humidity in June is 79%.

What is the rainiest month?

June is the month with the most rainfall. Rain falls for 16.3 days and accumulates 3.86" (98mm) of precipitation.

How much does it rain in June?

In June, the rain falls for 16.3 days. Throughout June, 3.86" (98mm) of precipitation is accumulated.

When it does not snow?

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

When are the longest days?

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

What is the average length of the day in June?

In Palmyra, the average day length in June is 14h and 55min.

When are sunrise and sunset in June?

In June, on the first day of the month, sunrise is at 5:34 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:31 pm CDT.

What month has the most sunshine in Palmyra?

June has the most sunshine of the year, with an average of 10.3h of sunshine.

How long on average sun shines in June?

In June, the average sunshine duration is 10.3h.

What is the month with the highest UV index?

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

What is the UV index intensity in June in Palmyra?

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

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

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (34.2°F).

  • Average low temperature in June: 64.9°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

Average pressure in June
Palmyra, IL

Average pressure in June - Palmyra, IL
  • Average pressure in June: 29.92"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 June
Palmyra, IL

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

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

Average humidity in June
Palmyra, IL

Average humidity in June - Palmyra, IL
  • Average humidity in June: 79%

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in June
Palmyra, IL

Average rainfall in June - Palmyra, IL
  • Average rainfall in June: 3.86"

The wettest month (with the highest rainfall) is June (3.86").
The driest month (with the least rainfall) is December (1.73").

Average rainfall days in June
Palmyra, IL

Average rainfall days in June - Palmyra, IL
  • Average rainfall days in June: 16.3 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (7.4 days).

Average snowfall in June
Palmyra, IL

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

The month with the highest snowfall is February (3.19").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in June
Palmyra, IL

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

The month with the highest number of snowfall days is January (8.5 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
Palmyra, IL

Average daylight in June / Average sunshine in June - Palmyra, 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 24min).

  • Average sunshine in June: 10h and 2min

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

Average sunshine days in June
Palmyra, IL

Average sunshine days in June - Palmyra, IL
  • Average sunshine days in June: 10.8 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (10.6 days).

Average UV index in June
Palmyra, IL

Average UV index in June - Palmyra, 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
Palmyra, IL

Average cloud cover in June - Palmyra, IL
  • Average cloud cover in June: 30

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June, July, August and September (Cloud cover 30).

Average visibility in June
Palmyra, IL

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

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

Palmyra, Illinois, USA

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