June weather forecast
Martinsville, IL

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Weather in June

The first month of the summer, June, is a warm month in Martinsville, Illinois, with an average temperature varying between 64.9°F (18.3°C) and 81.1°F (27.3°C).

Temperature

As Martinsville transitions into June, the average high-temperature is observed to slightly rise from a pleasant 73°F (22.8°C) in May to a warm 81.1°F (27.3°C). Martinsville records a steady low-temperature average of 64.9°F (18.3°C) during June.

Heat index

In June, the heat index is estimated at a tropical 86°F (30°C). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.

Humidity

The average relative humidity in June in Martinsville is 79%.

Rainfall

In Martinsville, during June, the rain falls for 12.6 days and regularly aggregates up to 1.38" (35mm) of precipitation. Throughout the year, there are 115.9 rainfall days, and 11.26" (286mm) of precipitation is accumulated.

Snowfall

In Martinsville, Illinois, 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 5:26 am and sunset at 8:12 pm. On the last day of June, sunrise is at 5:28 am and sunset at 8:22 pm CDT.

Sunshine

June has the most sunshine of the year, with an average of 10.4h 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 vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: An average maximum UV index of 6 in June leads to these recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are June temperatures in Martinsville?

During June, Martinsville experiences an average high-temperature of 81.1°F (27.3°C) and a low-temperature of 64.9°F (18.3°C). In June, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is estimated at 86°F (30°C).

What is the average humidity in June in Martinsville?

The average relative humidity in June in Martinsville is 79%.

How much does it rain in Martinsville in June?

In Martinsville, during June, the rain falls for 12.6 days and regularly aggregates up to 1.38" (35mm) of precipitation.

When it does not snow in Martinsville?

May through October are months without snowfall in Martinsville.

When are the longest days in Martinsville?

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

What is the average length of the day in June in Martinsville?

The average day length in June is 14h and 54min.

When are sunrise and sunset in June in Martinsville?

In June, on the first day of the month, sunrise is at 5:26 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 8:22 pm CDT.

What month has the most sunshine in Martinsville?

With an average of 10.4h of sunshine, June has the most sunshine of the year in Martinsville.

How many hours of sunshine does Martinsville have in June?

In Martinsville, the average sunshine duration in June is 10.4h.

When is the highest UV index in Martinsville?

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

How high is the UV index in June in Martinsville?

The average daily maximum UV index in June in Martinsville, Illinois, is 6. A UV Index reading of 6 to 7 represents a high health risk 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
Martinsville, IL

Average temperature in June - Martinsville, IL
  • Average high temperature in June: 81.1°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34.7°F).

  • Average low temperature in June: 64.9°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

Average pressure in June
Martinsville, IL

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in June
Martinsville, IL

Average wind speed in June - Martinsville, IL
  • Average wind speed in June: 7.3mph

The windiest months (with the highest average wind speed) are January and February (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).

Average humidity in June
Martinsville, IL

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

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).

Average rainfall in June
Martinsville, IL

Average rainfall in June - Martinsville, IL
  • Average rainfall in June: 1.38"

The wettest month (with the highest rainfall) is April (1.54").
The driest month (with the least rainfall) is February (0.47").

Average rainfall days in June
Martinsville, IL

Average rainfall days in June - Martinsville, IL
  • Average rainfall days in June: 12.6 days

The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is February (6 days).

Average snowfall in June
Martinsville, IL

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

The month with the highest snowfall is December (0.47").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in June
Martinsville, IL

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

The month with the highest number of snowfall days is January (5.8 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
Martinsville, IL

Average daylight in June / Average sunshine in June - Martinsville, 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 2min

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 6min).

Average sunshine days in June
Martinsville, IL

Average sunshine days in June - Martinsville, IL
  • Average sunshine days in June: 13.4 days

The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is May (12.4 days).

Average UV index in June
Martinsville, IL

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

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

Average cloud cover in June
Martinsville, IL

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

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in June
Martinsville, IL

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

Martinsville, Illinois, USA

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