June weather forecastGillespie, IL
June
Weather in June
June, the first month of the summer in Gillespie, is still a warm month, with an average temperature varying between 65.5°F (18.6°C) and 82.2°F (27.9°C).Temperature
June's arrival is noted with a slight increase in the average high-temperature, moving from 73.9°F (23.3°C) in May to a still warm 82.2°F (27.9°C). An average low-temperature of 65.5°F (18.6°C) is expected during June.Heat index
The heat index value during June is calculated to be a hot 89.6°F (32°C). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.Be advised, the heat index considers values for conditions in shade and with a light breeze. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
The average relative humidity in June is 79%.Rainfall
The month with the most rainfall is June, when the rain falls for 13.4 days and typically aggregates up to 1.89" (48mm) of precipitation.Snowfall
April through October are months without snowfall.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 8:19 pm. On the last day of June, sunrise is at 5:36 am and sunset at 8:29 pm CDT.
Sunshine
The months with the most sunshine are June and July, with an average of 10.3h 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 value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 6 in June interprets into the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Gillespie, IL
- Average high temperature in June: 82.2°F
The warmest month (with the highest average high temperature) is July (84.2°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 (67.5°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in June
Gillespie, 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
Gillespie, IL
- Average wind speed in June: 6.8mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in June
Gillespie, IL
- Average humidity in June: 79%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in June
Gillespie, IL
- Average rainfall in June: 1.89"
The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in June
Gillespie, IL
- Average rainfall days in June: 13.4 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in June
Gillespie, IL
- Average snowfall in June: 0"
The month with the highest snowfall is December (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in June
Gillespie, IL
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (6.3 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
Gillespie, IL
- Average daylight in June: 14h and 54min
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 18min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in June
Gillespie, IL
- Average sunshine days in June: 12.8 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is July (12.5 days).
Average UV index in June
Gillespie, 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
Gillespie, IL
- Average cloud cover in June: 29
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).
Average visibility in June
Gillespie, 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).





