May weather forecast
Chewelah, WA

A straight road through a small town in Chewelah, Washington
A straight road through a small town in Chewelah, Washington

Weather in May

May, the last month of the spring, in Chewelah, is a comfortable month, with average temperature varying between 39.6°F (4.2°C) and 65.1°F (18.4°C).

Temperature

In Chewelah, the average high-temperature increases, from a cool 53.4°F (11.9°C) in April, to an enjoyable 65.1°F (18.4°C). In May, the average low-temperature is 39.6°F (4.2°C).

Humidity

In Chewelah, the average relative humidity in May is 65%.

Rainfall

In Chewelah, during May, the rain falls for 14.8 days and regularly aggregates up to 1.93" (49mm) of precipitation. Throughout the year, in Chewelah, there are 141.6 rainfall days, and 17.56" (446mm) of precipitation is accumulated.

Snowfall

May through August are months without snowfall in Chewelah.

Daylight

In May, the average length of the day is 15.2h.

Sunshine

The average sunshine in May is 10.5h.

UV index

In Chewelah, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to the UV radiation for the average person.
Note: In May, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. 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 average humidity in May in Chewelah?

In Chewelah, the average relative humidity in May is 65%.

How much does it rain in Chewelah in May?

In Chewelah, Washington, in May, it is raining for 14.8 days, with typically 1.93" (49mm) of accumulated precipitation.

When it does not snow in Chewelah?

May through August are months without snowfall.

Does it snow in Chewelah in May?

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

What is the average length of the day in May in Chewelah?

In Chewelah, the average length of the day in May is 15.2h.

How many hours of sunshine does Chewelah have in May?

In Chewelah, Washington, the average sunshine in May is 10.5h.

What is the UV index reading in May in Chewelah?

In Chewelah, Washington, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to the UV radiation.

Average temperature in May
Chewelah, WA

Average temperature in May - Chewelah, WA
  • Average high temperature in May: 65.1°F

The warmest month (with the highest average high temperature) is August (83.1°F).
The month with the lowest average high temperature is December (29.8°F).

  • Average low temperature in May: 39.6°F

The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (18.7°F).

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Average pressure in May
Chewelah, WA

Average pressure in May - Chewelah, WA
  • Average pressure in May: 29.94"

The month with the highest atmospheric pressure is January (30.19").
Months with the lowest atmospheric pressure are June and August (29.91").

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Average wind speed in May
Chewelah, WA

Average wind speed in May - Chewelah, WA
  • Average wind speed in May: 4.4mph

The windiest month (with the highest average wind speed) is April (4.7mph).
The calmest months (with the lowest average wind speed) are January and December (3.5mph).

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Average humidity in May
Chewelah, WA

Average humidity in May - Chewelah, WA
  • Average humidity in May: 65%

The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (47%).

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Average rainfall in May
Chewelah, WA

Average rainfall in May - Chewelah, WA
  • Average rainfall in May: 1.93"

The wettest month (with the highest rainfall) is January (2.2").
The driest month (with the least rainfall) is August (0.35").

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Average rainfall days in May
Chewelah, WA

Average rainfall days in May - Chewelah, WA
  • Average rainfall days in May: 14.8 days

The month with the highest number of rainy days is March (17.1 days).
The month with the least rainy days is August (5.6 days).

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Average snowfall in May
Chewelah, WA

Average snowfall in May - Chewelah, WA
  • Average snowfall in May: 0"

The month with the highest snowfall is January (10.47").
Months with the least snowfall are May, June, July and August (0").

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Average snowfall days in May
Chewelah, WA

Average snowfall days in May - Chewelah, WA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is December (15.4 days).
Months with the least snowfall days are May, June, July and August (0 days).

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Average daylight in May /
Average sunshine in May
Chewelah, WA

Average daylight in May / Average sunshine in May - Chewelah, WA
  • Average daylight in May: 15.2h

The month with the longest days is June (Average daylight: 16h).
The month with the shortest days is December (Average daylight: 8.4h).

  • Average sunshine in May: 10.5h

The month with the most sunshine is August (Average sunshine: 12h).
The month with the least sunshine is January (Average sunshine: 3.6h).

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Average sunshine days in May
Chewelah, WA

Average sunshine days in May - Chewelah, WA
  • Average sunshine days in May: 14.6 days

The month with the most sunshine days is August (22.9 days).
The month with the least sunshine days is March (9.3 days).

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Average UV index in May
Chewelah, WA

Average UV index in May - Chewelah, WA
  • Average UV index in May: 4

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 1).

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Average cloud cover in May
Chewelah, WA

Average cloud cover in May - Chewelah, WA
  • Average cloud cover in May: 33

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 13).

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Average visibility in May
Chewelah, WA

Average visibility in May - Chewelah, WA
  • Average visibility in May: 6mi

Months with the highest visibility are April, May, June, July, August, September and October (6mi).
Months with the lowest visibility are January and February (3mi).

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