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
Alton's transition into June is marked by a rise in the average high-temperature, advancing from an agreeable 68.5°F (20.3°C) in May to a moderately hot 78.1°F (25.6°C). Alton throughout June, records an average low-temperature of 61.7°F (16.5°C).Humidity
The average relative humidity in June is 76%.Rainfall
June is the month with the most rainfall. Rain falls for 18 days and accumulates 3.82" (97mm) 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 in Alton, sunrise is at 5:47 am and sunset at 8:56 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 9:07 pm CDT.
Sunshine
In Alton, Iowa, the average sunshine in June is 9.6h.UV index
June and July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 6 during June leads to these instructions:
Stay clear of intense sun exposure. Solar protection is of utmost significance. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Frequently asked questions
What are the temperatures in Alton in June?
What is the average humidity in June in Alton?
What is the rainiest month in Alton?
How much does it rain in Alton in June?
When it does not snow in Alton?
Does it snow in Alton in June?
When are the longest days in Alton?
How many hours of daylight does Alton have in June?
What time are sunrise and sunset in June in Alton?
How many hours of sunshine does Alton have in June?
When is the highest UV index in Alton?
How high is the UV index in June in Alton?
Average temperature in June
Alton, IA
- Average high temperature in June: 78.1°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (24.6°F).
- Average low temperature in June: 61.7°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in June
Alton, IA
- Average pressure in June: 29.86"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in June
Alton, IA
- Average wind speed in June: 8.9mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in June
Alton, IA
- Average humidity in June: 76%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (67%).
Average rainfall in June
Alton, IA
- Average rainfall in June: 3.82"
The wettest month (with the highest rainfall) is June (3.82").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days in June
Alton, IA
- Average rainfall days in June: 18 days
The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in June
Alton, IA
- Average snowfall in June: 0"
The month with the highest snowfall is February (4.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
Alton, IA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Alton, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in June
Alton, IA
- Average sunshine days in June: 9.3 days
The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in June
Alton, 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 and December (UV index 1).
Average cloud cover in June
Alton, IA
- Average cloud cover in June: 35
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in June
Alton, IA
- Average visibility in June: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Alton, Iowa, USA
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