June weather forecastQuincy, IL
June
Weather in June
The first month of the summer, June, is a moderately hot month in Quincy, Illinois, with an average temperature varying between 64°F (17.8°C) and 81.1°F (27.3°C).Temperature
In June, the meteorological conditions change with the average high-temperature moving from a pleasant 72°F (22.2°C) in May to a warm 81.1°F (27.3°C). Quincy's nighttime temperature in June drops to an average of 64°F (17.8°C).Heat index
For June, the heat index is estimated at a tropical 87.8°F (31°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.Understanding the heat index involves considering values for shaded locales with light wind. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humidity
The months with the highest humidity are June and July, with an average relative humidity of 81%.Rainfall
In Quincy, during June, the rain falls for 16.1 days and regularly aggregates up to 2.6" (66mm) of precipitation. Throughout the year, in Quincy, there are 134.2 rainfall days, and 23.15" (588mm) of precipitation is accumulated.Snowfall
In Quincy, Illinois, snow does not fall in May through September.Daylight
With an average of 15h and 0min of daylight, June has the longest days of the year.On the first day of the month, sunrise is at 5:38 am and sunset at 8:28 pm. On the last day of June, in Quincy, sunrise is at 5:40 am and sunset at 8:38 pm CDT.
Sunshine
In Quincy, the average sunshine in June is 10.2h.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 unsafe exposure to UV radiation for ordinary individuals.Note: In June, the maximum UV index of 6 suggests these recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun 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
Quincy, IL
- Average high temperature in June: 81.1°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (32.7°F).
- Average low temperature in June: 64°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in June
Quincy, IL
- Average pressure in June: 29.91"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in June
Quincy, IL
- Average wind speed in June: 7.5mph
The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).
Average humidity in June
Quincy, IL
- Average humidity in June: 81%
The months with the highest relative humidity are June and July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in June
Quincy, IL
- Average rainfall in June: 2.6"
The wettest month (with the highest rainfall) is May (3.35").
The driest months (with the least rainfall) are January and December (1.02").
Average rainfall days in June
Quincy, IL
- Average rainfall days in June: 16.1 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (5 days).
Average snowfall in June
Quincy, IL
- Average snowfall in June: 0"
The month with the highest snowfall is January (2.76").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in June
Quincy, IL
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (8.8 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
Quincy, IL
- Average daylight in June: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in June: 10h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in June
Quincy, IL
- Average sunshine days in June: 11.1 days
The month with the most sunshine days is December (19.6 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in June
Quincy, 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
Quincy, IL
- Average cloud cover in June: 31
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in June
Quincy, 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).





