July weather forecastNapavine, WA
July
Weather in July
July in Napavine, Washington, is a moderately hot summer month, with an average temperature ranging between min 48.4°F (9.1°C) and max 76.6°F (24.8°C).Temperature
The shift from June to July is marked by a slight increase in the average high-temperature, moving from a pleasant 69.4°F (20.8°C) to a moderately hot 76.6°F (24.8°C). In July, the nighttime temperature plummets remarkably from the daily apex to a steady average of 48.4°F (9.1°C).Humidity
The least humid month is July, with an average relative humidity of 73%.Rainfall
July is the month with the least rainfall. Rain falls for 6.5 days and accumulates 0.47" (12mm) of precipitation.Snowfall
In Napavine, snow does not fall in April through October.Daylight
In Napavine, the average length of the day in July is 15h and 23min.On the first day of the month, sunrise is at 5:22 am and sunset at 9:08 pm. On the last day of July, sunrise is at 5:52 am and sunset at 8:43 pm PDT.
Sunshine
In Napavine, the average sunshine in July is 9.9h.UV index
With an average maximum UV index of 5, July is the month with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 5 in July interprets into the following recommendations:
Take precautions - Protection against sunburn is recommended. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Napavine, WA
- Average high temperature in July: 76.6°F
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (42.6°F).
- Average low temperature in July: 48.4°F
The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).
Average pressure in July
Napavine, WA
- Average pressure in July: 30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.02"Hg).
Average wind speed in July
Napavine, WA
- Average wind speed in July: 3.9mph
The windiest months (with the highest average wind speed) are January, March and November (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).
Average humidity in July
Napavine, WA
- Average humidity in July: 73%
The months with the highest relative humidity are January, February, November and December (89%).
The month with the lowest relative humidity is July (73%).
Average rainfall in July
Napavine, WA
- Average rainfall in July: 0.47"
The wettest month (with the highest rainfall) is January (5.51").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days in July
Napavine, WA
- Average rainfall days in July: 6.5 days
The month with the highest number of rainy days is March (21.5 days).
The month with the least rainy days is August (6.4 days).
Average snowfall in July
Napavine, WA
- Average snowfall in July: 0"
The month with the highest snowfall is February (1.93").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in July
Napavine, WA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Napavine, WA
- Average daylight in July: 15h and 24min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in July: 9h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in July
Napavine, WA
- Average sunshine days in July: 20.8 days
The months with the most sunshine days are July and August (20.8 days).
The month with the least sunshine days is February (7.6 days).
Average UV index in July
Napavine, WA
- Average UV index in July: 5
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in July
Napavine, WA
- Average cloud cover in July: 39
The months with the most cloud cover are January, February and December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in July
Napavine, WA
- Average visibility in July: 4mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).





