June weather forecastDorchester, IA
June
Weather in June
June, the first month of the summer in Dorchester, is a moderately hot month, with an average temperature varying between 74.8°F (23.8°C) and 57.6°F (14.2°C).Temperature
The arrival of June signals an increase in the average high-temperature, moving from an enjoyable 65.8°F (18.8°C) in May to a moderately hot 74.8°F (23.8°C). Dorchester experiences an average low-temperature of 57.6°F (14.2°C) in the month of June.Humidity
In Dorchester, the average relative humidity in June is 85%.Rainfall
June is the month with the most rainfall. Rain falls for 18 days and accumulates 4.61" (117mm) of precipitation.Snowfall
June through September are months without snowfall in Dorchester.Daylight
With an average of 15h and 24min of daylight, June has the longest days of the year.On the first day of June, sunrise is at 5:27 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 8:50 pm CDT.
Sunshine
The average sunshine in June is 9.2h.UV index
The average daily maximum UV index in June is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In June, the maximum UV index of 5 transforms into these recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Dorchester, IA
- Average high temperature in June: 74.8°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (21.7°F).
- Average low temperature in June: 57.6°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (8.8°F).
Average pressure in June
Dorchester, IA
- Average pressure in June: 29.89"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in June
Dorchester, IA
- Average wind speed in June: 7.2mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in June
Dorchester, IA
- Average humidity in June: 85%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (76%).
Average rainfall in June
Dorchester, IA
- Average rainfall in June: 4.61"
The wettest month (with the highest rainfall) is June (4.61").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in June
Dorchester, 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 (3 days).
Average snowfall in June
Dorchester, IA
- Average snowfall in June: 0"
The month with the highest snowfall is February (5.71").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
Dorchester, IA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Dorchester, IA
- Average daylight in June: 15h and 24min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in June: 9h and 12min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in June
Dorchester, IA
- Average sunshine days in June: 9.8 days
The month with the most sunshine days is January (17.7 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in June
Dorchester, IA
- Average UV index in June: 5
The month with the highest UV index is 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
Dorchester, IA
- Average cloud cover in June: 39
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
Dorchester, IA
- Average visibility in June: 6mi
The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, March, July, August, September and December (5mi).





