Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Highland, Washington, experiences a subtle adjustment in high-temperatures to a still tropical 89.2°F (31.8°C) with the onset of August, maintaining near parity with July's 90.1°F (32.3°C). Despite higher daytime temperatures, nighttime averages fall to a refreshing 64°F (17.8°C) in August.Humidity
The average relative humidity in August is 36%.Rainfall
In August, the rain falls for 3.8 days. Throughout August, 0.24" (6mm) of precipitation is accumulated. In Highland, during the entire year, the rain falls for 102.8 days and collects up to 7.32" (186mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in August is 14h and 6min.On the first day of the month, sunrise is at 5:39 am and sunset at 8:25 pm. On the last day of August, sunrise is at 6:16 am and sunset at 7:36 pm PDT.
Sunshine
The average sunshine in August is 12h.UV index
In August, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In August, the maximum UV index of 6 transforms into these recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is August?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow?
What is the average length of the day in August?
When is the sunrise / sunset in August?
How long on average sun shines in August?
What is the UV index intensity in August?
Average temperature in August
Highland, WA
- Average high temperature in August: 89.2°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is December (38.3°F).
- Average low temperature in August: 64°F
The month with the highest average low temperature is August (64°F).
The coldest month (with the lowest average low temperature) is December (27.9°F).
Average pressure in August
Highland, WA
- Average pressure in August: 29.91"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in August
Highland, WA
- Average wind speed in August: 6.4mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is December (5.8mph).
Average humidity in August
Highland, WA
- Average humidity in August: 36%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is July (35%).
Average rainfall in August
Highland, WA
- Average rainfall in August: 0.24"
The wettest months (with the highest rainfall) are March and December (0.94").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in August
Highland, WA
- Average rainfall days in August: 3.8 days
The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is July (3.5 days).
Average snowfall in August
Highland, WA
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Highland, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (3.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Highland, WA
- Average daylight in August: 14h and 1min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in August: 12h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in August
Highland, WA
- Average sunshine days in August: 24.6 days
The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is March (15.4 days).
Average UV index in August
Highland, WA
- Average UV index in August: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Highland, WA
- Average cloud cover in August: 10
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in August
Highland, WA
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Highland, Washington, USA
Weather forecast for your location
2. Allow the app to use your location