June weather forecast
Hartford, IL

Share

Weather in June

The first month of the summer, June, is still a warm month in Hartford, Illinois, with temperature in the range of an average low of 66.2°F (19°C) and an average high of 83.1°F (28.4°C).

Temperature

As May gives way to June, the average high-temperature displays an increase, moving from a warm 74.1°F (23.4°C) to a still moderately hot 83.1°F (28.4°C). June nights cool down to an average low-temperature of 66.2°F (19°C).

Heat index

The heat index value during June is appraised at a tropical 91.4°F (33°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.

Humidity

In June, the average relative humidity is 78%.

Rainfall

In Hartford, in June, it is raining for 15.1 days, with typically 2.76" (70mm) of accumulated precipitation. Throughout the year, there are 138 rainfall days, and 23.9" (607mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The month with the longest days is June, with an average of 14h and 48min of daylight.
On the first day of June in Hartford, sunrise is at 5:36 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:29 pm CDT.

Sunshine

The month with the most sunshine is June, with an average of 10.4h 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 reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: A maximum high UV index of 6 in June translates into the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Updated: Jun 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is June?

The high-temperature, in June, in Hartford, is 83.1°F (28.4°C), while the low-temperature averages to 66.2°F (19°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in June is appraised at 91.4°F (33°C).

What is the average humidity in June?

In June, the average relative humidity is 78%.

How many days does it rain in June?

In Hartford, Illinois, in June, during 15.1 rainfall days, 2.76" (70mm) of precipitation is typically accumulated.

When it does not snow?

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

When are the longest days?

The month with the longest days is June, with an average of 14h and 48min of daylight.

How many hours of daylight does Hartford have in June?

In Hartford, the average day length in June is 14h and 50min.

When is the sunrise / sunset in June?

On the first day of June in Hartford, sunrise is at 5:36 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:29 pm CDT.

What month has the most sunshine?

The month with the most sunshine is June, with an average of 10.4h of sunshine.

How long on average sun shines in June in Hartford?

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

What are the months with the highest UV index?

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

How high is the UV index in June?

The average daily maximum UV index in June is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Hartford, IL

Average temperature in June - Hartford, IL
  • Average high temperature in June: 83.1°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in June: 66.2°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure in June
Hartford, IL

Average pressure in June - Hartford, IL
  • Average pressure in June: 29.92"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in June
Hartford, IL

Average wind speed in June - Hartford, IL
  • Average wind speed in June: 6.6mph

The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).

Average humidity in June
Hartford, IL

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

The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in June
Hartford, IL

Average rainfall in June - Hartford, IL
  • Average rainfall in June: 2.76"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is February (1.14").

Average rainfall days in June
Hartford, IL

Average rainfall days in June - Hartford, IL
  • Average rainfall days in June: 15.1 days

The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is January (5.6 days).

Average snowfall in June
Hartford, IL

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

The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in June
Hartford, IL

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

The month with the highest number of snowfall days is January (6 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
Hartford, IL

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

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 30min).

Average sunshine days in June
Hartford, IL

Average sunshine days in June - Hartford, IL
  • Average sunshine days in June: 12.5 days

The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is July (12.3 days).

Average UV index in June
Hartford, IL

Average UV index in June - Hartford, 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
Hartford, IL

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

The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June, July and August (Cloud cover 29).

Average visibility in June
Hartford, IL

Average visibility in June - Hartford, 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).

Hartford, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location