June weather forecastMonticello, IA
June
Weather in June
The first month of the summer, June, is a warm month in Monticello, Iowa, with an average temperature fluctuating between 77°F (25°C) and 60.4°F (15.8°C).Temperature
Monticello's transition into June is noticed by a slight rise in the average high-temperature, advancing from a pleasant 68.4°F (20.2°C) in May to a warm 77°F (25°C). Throughout the nights in June, Monticello experiences an average low-temperature of 60.4°F (15.8°C).Humidity
In June, the average relative humidity is 83%.Rainfall
In Monticello, during June, the rain falls for 17.3 days and regularly aggregates up to 3.78" (96mm) of precipitation. Throughout the year, in Monticello, there are 142.5 rainfall days, and 28.27" (718mm) of precipitation is accumulated.Snowfall
In Monticello, snow does not fall in May through September.Daylight
June has the longest days of the year, with an average of 15h and 12min of daylight.On the first day of the month, sunrise is at 5:30 am and sunset at 8:35 pm. On the last day of June, sunrise is at 5:32 am and sunset at 8:45 pm CDT.
Sunshine
In Monticello, the average sunshine in June is 9.6h.UV index
The months with the highest UV index are June and July, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In June, a regular UV index of 6 translates into these guidelines:
Deflect overexposure. Sun protection is a necessity. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Monticello, IA
- Average high temperature in June: 77°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in June: 60.4°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 (13.3°F).
Average pressure in June
Monticello, IA
- Average pressure in June: 29.9"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in June
Monticello, IA
- Average wind speed in June: 7.8mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in June
Monticello, IA
- Average humidity in June: 83%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall in June
Monticello, IA
- Average rainfall in June: 3.78"
The wettest month (with the highest rainfall) is May (4.25").
The driest months (with the least rainfall) are January and February (1.26").
Average rainfall days in June
Monticello, IA
- Average rainfall days in June: 17.3 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in June
Monticello, IA
- Average snowfall in June: 0"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in June
Monticello, 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 May, June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Monticello, 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 36min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in June
Monticello, IA
- Average sunshine days in June: 10.5 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in June
Monticello, 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
Monticello, IA
- Average cloud cover in June: 35
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in June
Monticello, 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).
