August weather forecast
Lyman, WA

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Weather in August

The last month of the summer, August, is also an agreeable month in Lyman, Washington, with an average temperature ranging between min 50.5°F (10.3°C) and max 70.7°F (21.5°C).

Temperature

The weather during August records an average high-temperature of a still agreeable 70.7°F (21.5°C), closely mirroring the preceding month. Lyman experiences an average low-temperature of 50.5°F (10.3°C) in the month of August.

Humidity

In Lyman, the average relative humidity in August is 76%.

Rainfall

In Lyman, in August, during 9.4 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. Throughout the year, there are 203.2 rainfall days, and 49.72" (1263mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In August, the average length of the day is 14h and 17min.
On the first day of the month, sunrise is at 5:43 am and sunset at 8:45 pm. On the last day of August, sunrise is at 6:25 am and sunset at 7:51 pm PDT.

Sunshine

August has the most sunshine of the year, with an average of 10.3h of sunshine.

UV index

The average daily maximum UV index in August is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high UV index of 4 in August translates into the following recommendations:
Take precautions - Protection against sun damage is advised. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Updated: Jul 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature?

In August, the average high-temperature and low-temperature are 70.7°F (21.5°C) and 50.5°F (10.3°C) respectively.

What is the average humidity in August in Lyman?

In Lyman, the average relative humidity in August is 76%.

How much does it rain in August?

In Lyman, in August, during 9.4 rainfall days, 1.14" (29mm) of precipitation is typically accumulated.

When it does not snow?

In Lyman, snow does not fall in May through October.

How many hours of daylight does Lyman have in August?

In August, the average day length is 14h and 17min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 5:43 am and sunset at 8:45 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:51 pm PDT.

What month has the most sunshine?

August has the most sunshine of the year, with an average of 10.3h of sunshine.

How many hours of sunshine does Lyman have in August?

In August, the average sunshine duration is 10.3h.

What is the UV index intensity in August?

The average daily maximum UV index in August is 4. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Lyman, WA

Average temperature in August - Lyman, WA
  • Average high temperature in August: 70.7°F

The warmest month (with the highest average high temperature) is July (70.9°F).
The month with the lowest average high temperature is December (40.5°F).

  • Average low temperature in August: 50.5°F

The month with the highest average low temperature is August (50.5°F).
The coldest months (with the lowest average low temperature) are February and December (32.5°F).

Average pressure in August
Lyman, WA

Average pressure in August - Lyman, WA
  • Average pressure in August: 30"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

Average wind speed in August
Lyman, WA

Average wind speed in August - Lyman, WA
  • Average wind speed in August: 3.3mph

The windiest month (with the highest average wind speed) is November (5.7mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).

Average humidity in August
Lyman, WA

Average humidity in August - Lyman, WA
  • Average humidity in August: 76%

The months with the highest relative humidity are January, February and March (86%).
The month with the lowest relative humidity is July (75%).

Average rainfall in August
Lyman, WA

Average rainfall in August - Lyman, WA
  • Average rainfall in August: 1.14"

The wettest month (with the highest rainfall) is November (7.09").
The driest month (with the least rainfall) is July (0.98").

Average rainfall days in August
Lyman, WA

Average rainfall days in August - Lyman, WA
  • Average rainfall days in August: 9.4 days

The month with the highest number of rainy days is March (22.1 days).
The month with the least rainy days is August (9.4 days).

Average snowfall in August
Lyman, WA

Average snowfall in August - Lyman, WA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (4.96").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Lyman, WA

Average snowfall days in August - Lyman, WA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Lyman, WA

Average daylight in August / Average sunshine in August - Lyman, WA
  • Average daylight in August: 14h and 2min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).

Average sunshine days in August
Lyman, WA

Average sunshine days in August - Lyman, WA
  • Average sunshine days in August: 19.2 days

The month with the most sunshine days is August (19.2 days).
The month with the least sunshine days is March (7.3 days).

Average UV index in August
Lyman, WA

Average UV index in August - Lyman, WA
  • Average UV index in August: 4

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in August
Lyman, WA

Average cloud cover in August - Lyman, WA
  • Average cloud cover in August: 28

The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in August
Lyman, WA

Average visibility in August - Lyman, WA
  • Average visibility in August: 6mi

The months with the highest visibility are June, July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (5mi).

Lyman, Washington, USA

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