May weather forecast
Cascade Valley, WA

Weather in May

The last month of the spring, May, is a pleasant month in Cascade Valley, Washington, with an average temperature varying between 49.1°F (9.5°C) and 70.9°F (21.6°C).

Temperature

In May, the average high-temperature rises from a moderate 60.6°F (15.9°C) in April to an agreeable 70.9°F (21.6°C). In May, in Cascade Valley, the average low-temperature is 49.1°F (9.5°C).

Humidity

The average relative humidity in May in Cascade Valley is 49%.

Rainfall

In Cascade Valley, in May, during 9.8 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. Throughout the year, in Cascade Valley, there are 103.1 rainfall days, and 7.8" (198mm) of precipitation is accumulated.

Snowfall

In Cascade Valley, snow does not fall in May through August and October.

Daylight

In Cascade Valley, the average length of the day in May is 15h and 7min.
On the first day of the month, sunrise is at 5:40 am and sunset at 8:07 pm. On the last day of May, in Cascade Valley, sunrise is at 5:06 am and sunset at 8:44 pm PDT.

Sunshine

In Cascade Valley, the average sunshine in May is 10.8h.

UV index

In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in May in Cascade Valley?

In May, the average high-temperature is 70.9°F (21.6°C), and the average low-temperature is 49.1°F (9.5°C).

What is the average humidity in May in Cascade Valley?

The average relative humidity in May in Cascade Valley is 49%.

How many days does it rain in May in Cascade Valley?

In Cascade Valley, in May, during 9.8 rainfall days, 0.87" (22mm) of precipitation is typically accumulated.

When it does not snow in Cascade Valley?

In Cascade Valley, Washington, snow does not fall in May through August and October.

Does it snow in Cascade Valley in May?

In May, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does Cascade Valley have in May?

The average day length in May is 15h and 7min.

What time are sunrise and sunset in May in Cascade Valley?

On the first day of May, sunrise is at 5:40 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 5:06 am and sunset at 8:44 pm PDT.

How long on average sun shines in May in Cascade Valley?

The average sunshine duration in May is 10.8h.

What is the UV index reading in May in Cascade Valley?

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

Average temperature in May
Cascade Valley, WA

Average temperature in May - Cascade Valley, WA
  • Average high temperature in May: 70.9°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is December (34°F).

  • Average low temperature in May: 49.1°F

The month with the highest average low temperature is August (62.2°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).

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Average pressure in May
Cascade Valley, WA

Average pressure in May - Cascade Valley, WA
  • Average pressure in May: 29.94"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed in May
Cascade Valley, WA

Average wind speed in May - Cascade Valley, WA
  • Average wind speed in May: 7mph

The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest months (with the lowest average wind speed) are January and December (5.5mph).

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Average humidity in May
Cascade Valley, WA

Average humidity in May - Cascade Valley, WA
  • Average humidity in May: 49%

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are July and August (36%).

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Average rainfall in May
Cascade Valley, WA

Average rainfall in May - Cascade Valley, WA
  • Average rainfall in May: 0.87"

The wettest month (with the highest rainfall) is January (1.02").
The driest month (with the least rainfall) is August (0.2").

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Average rainfall days in May
Cascade Valley, WA

Average rainfall days in May - Cascade Valley, WA
  • Average rainfall days in May: 9.8 days

The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is July (3.8 days).

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Average snowfall in May
Cascade Valley, WA

Average snowfall in May - Cascade Valley, WA
  • Average snowfall in May: 0"

The month with the highest snowfall is December (2.6").
The months with the least snowfall are May, June, July, August and October (0").

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Average snowfall days in May
Cascade Valley, WA

Average snowfall days in May - Cascade Valley, WA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is December (6.8 days).
The months with the least snowfall days are May, June, July, August and October (0 days).

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Average daylight in May /
Average sunshine in May
Cascade Valley, WA

Average daylight in May / Average sunshine in May - Cascade Valley, WA
  • Average daylight in May: 15h and 7min

The month with the longest days is June (Average daylight: 15h and 51min).
The month with the shortest days is December (Average daylight: 8h and 34min).

  • Average sunshine in May: 10h and 48min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

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Average sunshine days in May
Cascade Valley, WA

Average sunshine days in May - Cascade Valley, WA
  • Average sunshine days in May: 19.1 days

The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is March (14.2 days).

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Average UV index in May
Cascade Valley, WA

Average UV index in May - Cascade Valley, WA
  • Average UV index in May: 5

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).

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Average cloud cover in May
Cascade Valley, WA

Average cloud cover in May - Cascade Valley, WA
  • Average cloud cover in May: 26

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 11).

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Average visibility in May
Cascade Valley, WA

Average visibility in May - Cascade Valley, WA
  • Average visibility in May: 6mi

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

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