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
Rock Island's transition into June is noticed by a slight rise in the average high-temperature, advancing from a comfortable 66°F (18.9°C) in May to an agreeable 73°F (22.8°C). During June, Rock Island detects a significant contrast from its daytime temperatures, with nights averaging at a chilly 48.2°F (9°C).Humidity
The average relative humidity in June is 53%.Rainfall
In Rock Island, Washington, in June, it is raining for 6.1 days, with typically 0.47" (12mm) of accumulated precipitation. Throughout the year, there are 111.7 rainfall days, and 10.71" (272mm) of precipitation is accumulated.Snowfall
May through August and October are months without snowfall.Daylight
June has the longest days of the year, with an average of 15h and 54min of daylight.On the first day of the month, sunrise is at 5:07 am and sunset at 8:49 pm. On the last day of June, in Rock Island, sunrise is at 5:07 am and sunset at 9:01 pm PDT.
Sunshine
In June, the average sunshine is 11.7h.UV index
In June, the average daily maximum UV index in Rock Island is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In June, the maximum UV index of 5 suggests this advice:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are June temperatures?
What is the average humidity in June?
How many days does it rain in June?
When it does not snow?
When are the longest days?
What is the average length of the day in June?
When are sunrise and sunset in June?
How long on average sun shines in June in Rock Island?
What is the UV index reading in June?
Average temperature in June
Rock Island, WA
- Average high temperature in June: 73°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is December (32.4°F).
- Average low temperature in June: 48.2°F
The month with the highest average low temperature is August (56.3°F).
The coldest month (with the lowest average low temperature) is December (20.7°F).
Average pressure in June
Rock Island, WA
- Average pressure in June: 29.94"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in June
Rock Island, WA
- Average wind speed in June: 6.5mph
The windiest month (with the highest average wind speed) is June (6.5mph).
The calmest month (with the lowest average wind speed) is December (3.7mph).
Average humidity in June
Rock Island, WA
- Average humidity in June: 53%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are July and August (44%).
Average rainfall in June
Rock Island, WA
- Average rainfall in June: 0.47"
The wettest months (with the highest rainfall) are January and December (1.57").
The driest months (with the least rainfall) are July and August (0.24").
Average rainfall days in June
Rock Island, WA
- Average rainfall days in June: 6.1 days
The month with the highest number of rainy days is March (13.8 days).
The month with the least rainy days is August (3.8 days).
Average snowfall in June
Rock Island, WA
- Average snowfall in June: 0"
The month with the highest snowfall is December (5.98").
The months with the least snowfall are May, June, July, August and October (0").
Average snowfall days in June
Rock Island, WA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is December (9.5 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in June /
Average sunshine in June
Rock Island, WA
- Average daylight in June: 15h and 5min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in June: 11h and 4min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in June
Rock Island, WA
- Average sunshine days in June: 22.2 days
The month with the most sunshine days is July (25.5 days).
The month with the least sunshine days is February (12.6 days).
Average UV index in June
Rock Island, WA
- 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 2).
Average cloud cover in June
Rock Island, WA
- Average cloud cover in June: 20
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in June
Rock Island, WA
- Average visibility in June: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).
Rock Island, Washington, USA
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