July weather forecastHillsboro, OR
July
Weather in July
As the warmest month in Hillsboro, July showcases peak summer with an average high temperature reaching as much as 80.6°F (27°C), reflective of the city's moderate summer weather. Humidity is relatively low, and the frequency of rainfall reaches its annual low. CBSunshine seems to take center stage with the maximum average duration of 10.5 hours per day, resulting in bright, captivating sunrises and sunsets. The scarcity of any significant rainfall and little cloud cover open up abundant opportunities for stargazing and night-time events. Despite occasional winds gusting at 6.9mph (11.1km/h), July overall is characterized by calm, sunny weather perfect for abundant summer activities.Temperature
With the onset of July, the average high-temperature subtly transitions from an agreeable 72.7°F (22.6°C) in June to a moderately hot 80.6°F (27°C). A considerable shift from the daytime highs is observed in Hillsboro during July nights, with an average low of 53.4°F (11.9°C).Heat index
July's heat index is appraised at 82.4°F (28°C). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
The average relative humidity in July is 65%.Rainfall
In Hillsboro, during July, the rain falls for 5.1 days and regularly aggregates up to 0.39" (10mm) of precipitation. In Hillsboro, during the entire year, the rain falls for 173 days and collects up to 29.49" (749mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Hillsboro, the average length of the day in July is 15h and 16min.On the first day of July, sunrise is at 5:27 am and sunset at 9:04 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 8:40 pm PDT.
Sunshine
In Hillsboro, the average sunshine in July is 10.5h.UV index
With an average maximum UV index of 6, July is the month with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: In July, a daily maximum UV index of 6 leads to the following instructions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Hillsboro, OR
- Average high temperature in July: 80.6°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 July: 53.4°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 July
Hillsboro, OR
- Average pressure in July: 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 July
Hillsboro, OR
- Average wind speed in July: 4.6mph
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 July
Hillsboro, OR
- Average humidity in July: 65%
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 July
Hillsboro, OR
- Average rainfall in July: 0.39"
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 July
Hillsboro, OR
- Average rainfall days in July: 5.1 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 July
Hillsboro, OR
- Average snowfall in July: 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 July
Hillsboro, OR
- Average snowfall days in July: 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 July /
Average sunshine in July
Hillsboro, OR
- Average daylight in July: 15h and 18min
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 July: 10h and 30min
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 July
Hillsboro, OR
- Average sunshine days in July: 24.4 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 July
Hillsboro, OR
- Average UV index in July: 6
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 July
Hillsboro, OR
- Average cloud cover in July: 27
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 July
Hillsboro, OR
- Average visibility in July: 6mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January and February (4mi).
