June weather forecastSimpson, IL
June
Weather in June
June, the first month of the summer in Simpson, is still a warm month, with an average temperature fluctuating between 66.2°F (19°C) and 85.6°F (29.8°C).Temperature
June signals a shift in the average high-temperature, moving from May's 75.7°F (24.3°C) to a still moderately hot 85.6°F (29.8°C). Throughout June, the temperature tends to fall to a consistent average low of 66.2°F (19°C).Heat index
The heat index in June is evaluated at a sweltering 96.8°F (36°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.Be advised, the heat index considers values for conditions in shade and with a light breeze. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
In June, the average relative humidity in Simpson is 76%.Rainfall
June is the month with the most rainfall. Rain falls for 12.5 days and accumulates 1.5" (38mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The month with the longest days in Simpson is June, with an average of 14h and 42min of daylight.On the first day of the month, sunrise is at 5:35 am and sunset at 8:10 pm. On the last day of June, in Simpson, sunrise is at 5:37 am and sunset at 8:20 pm CDT.
Sunshine
The months with the most sunshine are June and July, with an average of 10.4h of sunshine.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Simpson. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In June, the UV index of 6 transforms into the following advice:
Prevent overexposure. Protection from the sun's harmful effects is needed. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Simpson, IL
- Average high temperature in June: 85.6°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.1°F).
- Average low temperature in June: 66.2°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in June
Simpson, IL
- Average pressure in June: 29.94"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in June
Simpson, IL
- Average wind speed in June: 6.3mph
The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in June
Simpson, IL
- Average humidity in June: 76%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in June
Simpson, IL
- Average rainfall in June: 1.5"
The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in June
Simpson, IL
- Average rainfall days in June: 12.5 days
The month with the highest number of rainy days is July (13.1 days).
The months with the least rainy days are January, February and December (7.3 days).
Average snowfall in June
Simpson, IL
- Average snowfall in June: 0"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in June
Simpson, IL
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (3.3 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
Simpson, IL
- Average daylight in June: 14h and 42min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in June: 10h and 24min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in June
Simpson, IL
- Average sunshine days in June: 14.8 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (14.8 days).
Average UV index in June
Simpson, 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 and December (UV index 2).
Average cloud cover in June
Simpson, IL
- Average cloud cover in June: 29
The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in June
Simpson, 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).
