June weather forecastSmithboro, IL
June
Weather in June
June, the first month of the summer in Smithboro, is also a moderately hot month, with temperature in the range of an average high of 82.9°F (28.3°C) and an average low of 65.8°F (18.8°C).Temperature
June brings an increase in the average high-temperature, progressing from 73.9°F (23.3°C) in May to a still warm 82.9°F (28.3°C). Throughout the month of June, Smithboro expects an average low of 65.8°F (18.8°C).Heat index
The heat index for June is appraised at a tropical 91.4°F (33°C). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.It is important to note that the heat index values are for shaded areas and light wind scenarios. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humidity
In Smithboro, the average relative humidity in June is 78%.Rainfall
June is the month with the most rainfall. Rain falls for 14.9 days and accumulates 3.43" (87mm) of precipitation.Snowfall
In Smithboro, snow does not fall in April through October.Daylight
With an average of 14h and 54min of daylight, June has the longest days of the year in Smithboro, Illinois.On the first day of the month, sunrise is at 5:33 am and sunset at 8:17 pm. On the last day of June, in Smithboro, sunrise is at 5:35 am and sunset at 8:26 pm CDT.
Sunshine
With an average of 10.4h of sunshine, June has the most sunshine of the year in Smithboro.UV index
The months with the highest UV index in Smithboro are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In June, the maximum UV index of 6 translates into these guidelines:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Smithboro, IL
- Average high temperature in June: 82.9°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in June: 65.8°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 (23.4°F).
Average pressure in June
Smithboro, 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
Smithboro, IL
- Average wind speed in June: 6.9mph
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
Smithboro, IL
- Average humidity in June: 78%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in June
Smithboro, IL
- Average rainfall in June: 3.43"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days in June
Smithboro, IL
- Average rainfall days in June: 14.9 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in June
Smithboro, IL
- Average snowfall in June: 0"
The month with the highest snowfall is December (1.89").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in June
Smithboro, 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 and September (0 days).
Average daylight in June /
Average sunshine in June
Smithboro, 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 24min
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
Smithboro, IL
- Average sunshine days in June: 12.7 days
The month with the most sunshine days is December (20 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in June
Smithboro, 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
Smithboro, 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
Smithboro, 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).
