June weather forecastWaterloo, IA
June
Weather in June
Waterloo experiences mild and pleasant weather through much of June. The shift into summer is unmistakable as abundant sunshine graces the city. The skyline is typically clear, with cloud coverage at its lowest of the year. While high temperatures average a comfortable 77.7°F (25.4°C), the amount of relative humidity begins to rise, paving the way for sultry summer days ahead. Waterloo residents look forward to the arrival of summer festivities this month.Temperature
The shift from May to June in Waterloo brings an increase in the average high-temperature, moving from an agreeable 68.2°F (20.1°C) to a moderately hot 77.7°F (25.4°C). Waterloo experiences an average low-temperature of 61.3°F (16.3°C) in the month of June.Humidity
In June, the average relative humidity is 81%.Rainfall
The month with the most rainfall in Waterloo is June, when the rain falls for 18.1 days and typically aggregates up to 4.29" (109mm) of precipitation.Snowfall
In Waterloo, snow does not fall in June through September.Daylight
The month with the longest days is June, with an average of 15h and 12min of daylight.On the first day of June in Waterloo, sunrise is at 5:34 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:50 pm CDT.
Sunshine
The average sunshine in June in Waterloo is 9.5h.UV index
June is the month with the highest UV index in Waterloo, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 6 in June transforms into this advice:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Waterloo, IA
- Average high temperature in June: 77.7°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 (24.3°F).
- Average low temperature in June: 61.3°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in June
Waterloo, 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
Waterloo, 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
Waterloo, IA
- Average humidity in June: 81%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (72%).
Average rainfall in June
Waterloo, IA
- Average rainfall in June: 4.29"
The wettest month (with the highest rainfall) is June (4.29").
The driest months (with the least rainfall) are January and February (1.02").
Average rainfall days in June
Waterloo, IA
- Average rainfall days in June: 18.1 days
The month with the highest number of rainy days is June (18.1 days).
The month with the least rainy days is February (4 days).
Average snowfall in June
Waterloo, IA
- Average snowfall in June: 0"
The month with the highest snowfall is January (4.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
Waterloo, IA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Waterloo, 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 6min).
- Average sunshine in June: 9h and 30min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in June
Waterloo, IA
- Average sunshine days in June: 10 days
The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is June (10 days).
Average UV index in June
Waterloo, IA
- Average UV index in June: 6
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in June
Waterloo, IA
- Average cloud cover in June: 36
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in June
Waterloo, IA
- Average visibility in June: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
