Contents
- Weather in June
- Frequently asked questions
- Average temperature in June
- Average pressure in June
- Average wind speed in June
- Average humidity in June
- Average rainfall in June
- Average rainfall days in June
- Average snowfall in June
- Average snowfall days in June
- Average daylight in June
- Average sunshine in June
- Average sunshine days in June
- Average UV index in June
- Average cloud cover in June
- Average visibility in June
Weather in June
Temperature
With the onset of June, Sumner's average high-temperature sees a rise, moving from May's refreshing 66.7°F (19.3°C) to a warm 76.5°F (24.7°C). During June, Sumner sees a mean low-temperature of 60.3°F (15.7°C).Humidity
The average relative humidity in June is 82%.Rainfall
June is the month with the most rainfall. Rain falls for 20.2 days and accumulates 5.04" (128mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
With an average of 15h and 18min of daylight, June has the longest days of the year.On the first day of June, sunrise is at 5:32 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:50 pm CDT.
Sunshine
The average sunshine in June is 9.4h.UV index
With an average maximum UV index of 6, June is the month with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 6 during June translates into these guidelines:
Inhibit overexposure. Warding off sun damage is of utmost importance. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in June?
What is the average humidity in June?
What is the rainiest month?
How many days does it rain in June?
When it does not snow?
Does it snow in June?
When are the longest days?
How many hours of daylight does Sumner have in June?
When are sunrise and sunset in June?
How many hours of sunshine does Sumner have in June?
When is the highest UV index?
What is the UV index reading in June?
Average temperature in June
Sumner, IA
- Average high temperature in June: 76.5°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (23.5°F).
- Average low temperature in June: 60.3°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (11.1°F).
Average pressure in June
Sumner, IA
- Average pressure in June: 29.89"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in June
Sumner, IA
- Average wind speed in June: 8.1mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in June
Sumner, IA
- Average humidity in June: 82%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (73%).
Average rainfall in June
Sumner, IA
- Average rainfall in June: 5.04"
The wettest month (with the highest rainfall) is June (5.04").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in June
Sumner, IA
- Average rainfall days in June: 20.2 days
The month with the highest number of rainy days is May (20.3 days).
The months with the least rainy days are January and February (4.3 days).
Average snowfall in June
Sumner, IA
- Average snowfall in June: 0"
The month with the highest snowfall is February (5.83").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
Sumner, IA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (13.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Sumner, IA
- Average daylight in June: 15h and 2min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in June: 9h and 2min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in June
Sumner, IA
- Average sunshine days in June: 7.3 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is June (7.3 days).
Average UV index in June
Sumner, IA
- Average UV index in June: 6
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in June
Sumner, IA
- Average cloud cover in June: 37
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in June
Sumner, IA
- Average visibility in June: 6mi
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).
Sumner, Iowa, USA
Weather forecast for your location
2. Allow the app to use your location