June weather forecastGrafton, IA
June
Weather in June
June, the first month of the summer in Grafton, is a warm month, with an average temperature ranging between max 76.5°F (24.7°C) and min 60.3°F (15.7°C).Temperature
In Grafton, stepping into June brings a temperature increase, moving up from May's enjoyable 66.6°F (19.2°C) to a moderately hot 76.5°F (24.7°C). In Grafton, the average temperature during the nights of June drops to a refreshing 60.3°F (15.7°C).Humidity
In June, the average relative humidity is 80%.Rainfall
June is the month with the most rainfall. Rain falls for 18.4 days and accumulates 4.13" (105mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The month with the longest days in Grafton is June, with an average of 15h and 18min of daylight.On the first day of June, sunrise is at 5:34 am and sunset at 8:46 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:56 pm CDT.
Sunshine
In Grafton, the average sunshine in June is 9.3h.UV index
June and July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In June, the maximum UV index of 6 suggests these recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Grafton, 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 (21.6°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 (9°F).
Average pressure in June
Grafton, IA
- Average pressure in June: 29.88"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in June
Grafton, IA
- Average wind speed in June: 8.5mph
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 (7.4mph).
Average humidity in June
Grafton, IA
- Average humidity in June: 80%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and October (72%).
Average rainfall in June
Grafton, IA
- Average rainfall in June: 4.13"
The wettest month (with the highest rainfall) is June (4.13").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in June
Grafton, IA
- Average rainfall days in June: 18.4 days
The month with the highest number of rainy days is June (18.4 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in June
Grafton, IA
- Average snowfall in June: 0"
The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
Grafton, IA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Grafton, IA
- Average daylight in June: 15h and 18min
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 0min).
- Average sunshine in June: 9h and 18min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in June
Grafton, IA
- Average sunshine days in June: 9.1 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is June (9.1 days).
Average UV index in June
Grafton, IA
- Average UV index in June: 6
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in June
Grafton, IA
- Average cloud cover in June: 38
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in June
Grafton, IA
- Average visibility in June: 6mi
The months with the highest visibility are March, April, May, June, September, October and November (6mi).
The months with the lowest visibility are January, February, July, August and December (5mi).
