June weather forecastKnoxville, IA
June
Weather in June
June, the first month of the summer in Knoxville, is a moderately hot month, with an average temperature fluctuating between 79.3°F (26.3°C) and 63.1°F (17.3°C).Temperature
June marks a rise in the average high-temperature, moving from May's pleasant 69.4°F (20.8°C) to a moderately hot 79.3°F (26.3°C). In June, Knoxville encounters an average low-temperature of 63.1°F (17.3°C) during the night.Humidity
The average relative humidity in June is 82%.Rainfall
In Knoxville, Iowa, during June, the rain falls for 14.4 days and regularly aggregates up to 1.81" (46mm) of precipitation. Throughout the year, there are 115.3 rainfall days, and 13.31" (338mm) of precipitation is accumulated.Snowfall
In Knoxville, snow does not fall in June through September.Daylight
The month with the longest days in Knoxville is June, with an average of 15h and 6min of daylight.On the first day of June, sunrise is at 5:41 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:49 pm CDT.
Sunshine
The average sunshine in June is 9.9h.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 hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In June, a daily UV index of 6 turns into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Knoxville, IA
- Average high temperature in June: 79.3°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in June: 63.1°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in June
Knoxville, IA
- Average pressure in June: 29.89"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in June
Knoxville, IA
- Average wind speed in June: 7.9mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in June
Knoxville, IA
- Average humidity in June: 82%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in June
Knoxville, IA
- Average rainfall in June: 1.81"
The wettest month (with the highest rainfall) is May (2.24").
The driest months (with the least rainfall) are February and December (0.47").
Average rainfall days in June
Knoxville, IA
- Average rainfall days in June: 14.4 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in June
Knoxville, IA
- Average snowfall in June: 0"
The month with the highest snowfall is January (2.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
Knoxville, IA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Knoxville, IA
- Average daylight in June: 15h and 6min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in June: 9h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in June
Knoxville, IA
- Average sunshine days in June: 11.6 days
The months with the most sunshine days are November and December (20.5 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in June
Knoxville, IA
- Average UV index in June: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in June
Knoxville, IA
- Average cloud cover in June: 33
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July, August and September (Cloud cover 29).
Average visibility in June
Knoxville, IA
- 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).





