Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
With average high temperatures of 83.5°F (28.6°C) and lows of 56.8°F (13.8°C), July is the warmest month.Heat index
July's heat index is computed to be 84.2°F (29°C). One might feel worn out with persistent exposure and activity, resulting in heat cramps.When assessing, remember that heat index measurements are for light winds and shaded spots. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'real feel' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important 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 47%.Rainfall
July is the month with the least rainfall in Grass Valley, Oregon. Rain falls for 2.9 days and accumulates 0.12" (3mm) of precipitation.Snowfall
In Grass Valley, snow does not fall in April through October.Daylight
In July, the average length of the day is 15h and 15min.On the first day of the month, sunrise is at 5:19 am and sunset at 8:54 pm. On the last day of July, in Grass Valley, sunrise is at 5:47 am and sunset at 8:31 pm PDT.
Sunshine
July and August, with an average of 12h of sunshine, are months with the most sunshine in Grass Valley.UV index
The month with the highest UV index in Grass Valley is July, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum UV index of 6 in July translates into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Frequently asked questions
What is the warmest month in Grass Valley?
How hot is it in Grass Valley in July?
What is the average humidity in July in Grass Valley?
What is the driest month in Grass Valley?
How many days does it rain in July in Grass Valley?
When it does not snow in Grass Valley?
What is the average length of the day in July in Grass Valley?
When is the sunrise / sunset in July in Grass Valley?
What are the months with the most sunshine in Grass Valley?
How many hours of sunshine does Grass Valley have in July?
What is the month with the highest UV index in Grass Valley?
How high is the UV index in July in Grass Valley?
Average temperature in July
Grass Valley, OR
- Average high temperature in July: 83.5°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is December (37.4°F).
- Average low temperature in July: 56.8°F
The month with the highest average low temperature is August (57.9°F).
The coldest month (with the lowest average low temperature) is December (27°F).
Average pressure in July
Grass Valley, OR
- Average pressure in July: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.95"Hg).
Average wind speed in July
Grass Valley, OR
- Average wind speed in July: 7.4mph
The windiest month (with the highest average wind speed) is June (7.9mph).
The calmest months (with the lowest average wind speed) are January and December (5mph).
Average humidity in July
Grass Valley, OR
- Average humidity in July: 47%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (46%).
Average rainfall in July
Grass Valley, OR
- Average rainfall in July: 0.12"
The wettest month (with the highest rainfall) is January (1.93").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in July
Grass Valley, OR
- Average rainfall days in July: 2.9 days
The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is July (2.9 days).
Average snowfall in July
Grass Valley, OR
- Average snowfall in July: 0"
The month with the highest snowfall is February (2.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in July
Grass Valley, OR
- Average snowfall days in July: 0 days
The months with the highest number of snowfall days are February and December (3.9 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
Grass Valley, OR
- Average daylight in July: 15h and 1min
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: 12h
The months with the most sunshine are July and August (Average sunshine: 12h).
The month with the least sunshine is January (Average sunshine: 5h).
Average sunshine days in July
Grass Valley, OR
- Average sunshine days in July: 27 days
The month with the most sunshine days is July (27 days).
The month with the least sunshine days is February (12.3 days).
Average UV index in July
Grass Valley, 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
Grass Valley, OR
- Average cloud cover in July: 9
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 9).
Average visibility in July
Grass Valley, OR
- Average visibility in July: 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, February and December (5mi).
Grass Valley, Oregon, USA
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