June weather forecastKeystone, IA
June
Weather in June
June, the first month of the summer in Keystone, is a moderately hot month, with temperature in the range of an average low of 61.7°F (16.5°C) and an average high of 78.1°F (25.6°C).Temperature
The shift from May to June sees an increase in the average high-temperature, transitioning from an agreeable 68.7°F (20.4°C) to a warm 78.1°F (25.6°C). An average nighttime temperature of 61.7°F (16.5°C) is noted during the month of June.Humidity
The average relative humidity in June is 82%.Rainfall
In Keystone, in June, during 19.3 rainfall days, 4.13" (105mm) of precipitation is typically accumulated. In Keystone, Iowa, during the entire year, the rain falls for 139 days and collects up to 29.49" (749mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The month with the longest days is June, with an average of 15h and 12min of daylight.On the first day of June, sunrise is at 5:35 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:48 pm CDT.
Sunshine
The average sunshine in June is 9.4h.UV index
June is the month with the highest UV index, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.Note: In June, the UV index of 6 transforms into the following advice:
Guard against overexposure. Protection from sun-induced harm is essential. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Keystone, IA
- Average high temperature in June: 78.1°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (25.9°F).
- Average low temperature in June: 61.7°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in June
Keystone, 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
Keystone, IA
- Average wind speed in June: 8.1mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in June
Keystone, IA
- Average humidity in June: 82%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in June
Keystone, IA
- Average rainfall in June: 4.13"
The wettest month (with the highest rainfall) is May (4.61").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in June
Keystone, IA
- Average rainfall days in June: 19.3 days
The month with the highest number of rainy days is June (19.3 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in June
Keystone, IA
- Average snowfall in June: 0"
The month with the highest snowfall is January (5.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
Keystone, IA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is February (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Keystone, IA
- Average daylight in June: 15h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in June: 9h and 24min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in June
Keystone, IA
- Average sunshine days in June: 8.4 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is June (8.4 days).
Average UV index in June
Keystone, 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, February, October, November and December (UV index 2).
Average cloud cover in June
Keystone, IA
- Average cloud cover in June: 36
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in June
Keystone, IA
- Average visibility in June: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
