May weather forecast
Twisp, WA

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Weather in May

The maturing spring in May marks noticeable changes in the weather patterns in Twisp, Washington. As the last of the spring rains fall, days become progressively drier and warmer compared to April. With average temperatures reaching between 36.7°F (2.6°C) and 59.4°F (15.2°C), outdoor activities flourish providing a boost to local tourism. To accompany the favorable weather, the daily sunshine duration increases, painting Twisp under bright daylight for longer periods. Winds remain mild, ensuring visitors can enjoy the numerous outdoor events the city offers during this period without major weather impacts to contend with.

Temperature

With the onset of May, Twisp sees a temperature rise, with the average high-temperature moving from April's chilly 47.5°F (8.6°C) to a moderate 59.4°F (15.2°C). During May, Twisp perceives a consistent contrast from the daytime highs, with an average low-temperature of 36.7°F (2.6°C).

Humidity

In Twisp, the average relative humidity in May is 66%.

Rainfall

In Twisp, in May, it is raining for 14.6 days, with typically 1.57" (40mm) of accumulated precipitation. In Twisp, during the entire year, the rain falls for 141.4 days and collects up to 18.07" (459mm) of precipitation.

Snowfall

May through August are months without snowfall.

Daylight

In May, the average length of the day is 15h and 15min.
On the first day of the month, sunrise is at 5:39 am and sunset at 8:15 pm. On the last day of May, sunrise is at 5:03 am and sunset at 8:53 pm PDT.

Sunshine

The average sunshine in May in Twisp is 10.8h.

UV index

In Twisp, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: An average UV index of 4 in May transforms into this advice:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
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Frequently asked questions

What is the usual temperature for Twisp in May?

Twisp in May has an average high-temperature of 59.4°F (15.2°C) and an average low-temperature of 36.7°F (2.6°C).

What is the average humidity in May in Twisp?

In Twisp, the average relative humidity in May is 66%.

How much does it rain in Twisp in May?

In Twisp, Washington, in May, during 14.6 rainfall days, 1.57" (40mm) of precipitation is typically accumulated.

When it does not snow in Twisp?

In Twisp, snow does not fall in May through August.

Does it snow in Twisp in May?

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

How many hours of daylight does Twisp have in May?

The average day length in May in Twisp, Washington, is 15h and 15min.

What time are sunrise and sunset in May in Twisp?

On the first day of May, sunrise is at 5:39 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 5:03 am and sunset at 8:53 pm PDT.

How long on average sun shines in May in Twisp?

In Twisp, Washington, the average sunshine duration in May is 10.8h.

What is the UV index intensity in May in Twisp?

The average daily maximum UV index in May in Twisp, Washington, is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from 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 May
Twisp, WA

Average temperature in May - Twisp, WA
  • Average high temperature in May: 59.4°F

The warmest month (with the highest average high temperature) is August (76.8°F).
The month with the lowest average high temperature is December (27.9°F).

  • Average low temperature in May: 36.7°F

The month with the highest average low temperature is August (48.9°F).
The coldest month (with the lowest average low temperature) is December (14.7°F).

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Average pressure in May
Twisp, WA

Average pressure in May - Twisp, WA
  • Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.94"Hg).

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Average wind speed in May
Twisp, WA

Average wind speed in May - Twisp, WA
  • Average wind speed in May: 4.6mph

The windiest month (with the highest average wind speed) is July (5.1mph).
The calmest months (with the lowest average wind speed) are January and December (3.5mph).

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Average humidity in May
Twisp, WA

Average humidity in May - Twisp, WA
  • Average humidity in May: 66%

The months with the highest relative humidity are January and February (92%).
The months with the lowest relative humidity are July and August (51%).

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Average rainfall in May
Twisp, WA

Average rainfall in May - Twisp, WA
  • Average rainfall in May: 1.57"

The wettest month (with the highest rainfall) is December (2.52").
The driest month (with the least rainfall) is July (0.35").

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Average rainfall days in May
Twisp, WA

Average rainfall days in May - Twisp, WA
  • Average rainfall days in May: 14.6 days

The month with the highest number of rainy days is March (17.1 days).
The month with the least rainy days is August (5.7 days).

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Average snowfall in May
Twisp, WA

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

The month with the highest snowfall is December (12.28").
The months with the least snowfall are May, June, July and August (0").

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Average snowfall days in May
Twisp, WA

Average snowfall days in May - Twisp, WA
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is December (15.5 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in May / Average sunshine in May - Twisp, WA
  • Average daylight in May: 15h and 1min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in May: 10h and 5min

The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in May
Twisp, WA

Average sunshine days in May - Twisp, WA
  • Average sunshine days in May: 13.3 days

The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is March (8.9 days).

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Average UV index in May
Twisp, WA

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

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

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Average cloud cover in May
Twisp, WA

Average cloud cover in May - Twisp, WA
  • Average cloud cover in May: 31

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 14).

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Average visibility in May
Twisp, WA

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

The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).

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Twisp, Washington, USA

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