June weather forecastHillsboro, OR
June
Weather in June
June greets Hillsboro with the arrival of summer, with temperatures that can soar up to 72.7°F (22.6°C). This relatively drier month features clearer skies and longer daylight hours, casting a warm, inviting hue over the city. Notably, the rainfall dramatically drops from May's figures, with precipitation even more infrequent. Radiant sunlight averaging around 8.9 hours per day ensures ample opportunities to experience outdoor summer activities. The summer solstice that occurs in June, with an average of 15.6 hours of daylight, marks the longest day of the year.Temperature
The onset of June marks a slight increase in the average high-temperature, moving from a refreshing 67.1°F (19.5°C) in May to a pleasant 72.7°F (22.6°C). From the heights of the June heat, Hillsboro records a mean nighttime low of 48.7°F (9.3°C).Humidity
In Hillsboro, the average relative humidity in June is 71%.Rainfall
In Hillsboro, in June, it is raining for 11.4 days, with typically 1.1" (28mm) of accumulated precipitation. Throughout the year, there are 173 rainfall days, and 29.49" (749mm) of precipitation is accumulated.Snowfall
In Hillsboro, snow does not fall in April through October.Daylight
June has the longest days of the year in Hillsboro, Oregon, with an average of 15h and 36min of daylight.On the first day of the month, sunrise is at 5:25 am and sunset at 8:53 pm. On the last day of June, sunrise is at 5:27 am and sunset at 9:04 pm PDT.
Sunshine
In June, the average sunshine is 8.9h.UV index
In June, the average daily maximum UV index in Hillsboro is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 5 in June suggests the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Hillsboro, OR
- Average high temperature in June: 72.7°F
The warmest month (with the highest average high temperature) is August (81.5°F).
The month with the lowest average high temperature is December (43.9°F).
- Average low temperature in June: 48.7°F
The month with the highest average low temperature is August (55.4°F).
The coldest month (with the lowest average low temperature) is December (34°F).
Average pressure in June
Hillsboro, OR
- Average pressure in June: 30.04"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in June
Hillsboro, OR
- Average wind speed in June: 4.3mph
The windiest month (with the highest average wind speed) is March (5mph).
The calmest months (with the lowest average wind speed) are June, August and September (4.3mph).
Average humidity in June
Hillsboro, OR
- Average humidity in June: 71%
The months with the highest relative humidity are January, February, November and December (85%).
The month with the lowest relative humidity is August (64%).
Average rainfall in June
Hillsboro, OR
- Average rainfall in June: 1.1"
The wettest month (with the highest rainfall) is January (4.57").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days in June
Hillsboro, OR
- Average rainfall days in June: 11.4 days
The month with the highest number of rainy days is March (20.8 days).
The month with the least rainy days is August (4.4 days).
Average snowfall in June
Hillsboro, OR
- Average snowfall in June: 0"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in June
Hillsboro, OR
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in June /
Average sunshine in June
Hillsboro, OR
- Average daylight in June: 15h and 36min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in June: 8h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in June
Hillsboro, OR
- Average sunshine days in June: 16.2 days
The month with the most sunshine days is July (24.4 days).
The month with the least sunshine days is March (8.5 days).
Average UV index in June
Hillsboro, OR
- 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
Hillsboro, OR
- Average cloud cover in June: 45
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in June
Hillsboro, OR
- Average visibility in June: 5mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January and February (4mi).
