May weather forecast
Regal, WA

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Weather in May

May, the last month of the spring in Regal, is a comfortable month, with temperature in the range of an average low of 43.3°F (6.3°C) and an average high of 64.9°F (18.3°C).

Temperature

The arrival of May sees a shift in the average high-temperature, moving from a cool 54.5°F (12.5°C) in April to an enjoyable 64.9°F (18.3°C). Nighttime temperatures in Regal exhibit a substantial dip from daytime highs during May, averaging at a chilly 43.3°F (6.3°C).

Humidity

In May, the average relative humidity in Regal, Washington, is 58%.

Rainfall

In Regal, in May, it is raining for 9.6 days, with typically 0.91" (23mm) of accumulated precipitation. In Regal, during the entire year, the rain falls for 99.9 days and collects up to 8.66" (220mm) of precipitation.

Snowfall

In Regal, Washington, snow does not fall in May through August.

Daylight

The average length of the day in May is 15h and 5min.
On the first day of the month, sunrise is at 5:44 am and sunset at 8:13 pm. On the last day of May, sunrise is at 5:10 am and sunset at 8:48 pm PDT.

Sunshine

The average sunshine in May is 11h.

UV index

In Regal, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 4 in May converts into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Around midday, solar radiation is most harmful; hence, exposure should be limited. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

What is the average May temperature in Regal?

The high-temperature, in May, in Regal, is 64.9°F (18.3°C), while the low-temperature averages to 43.3°F (6.3°C).

What is the average humidity in May in Regal?

In Regal, the average relative humidity in May is 58%.

How much does it rain in Regal in May?

In Regal, Washington, in May, it is raining for 9.6 days, with typically 0.91" (23mm) of accumulated precipitation.

When it does not snow in Regal?

May through August are months without snowfall in Regal.

Does it snow in Regal in May?

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

How many hours of daylight does Regal have in May?

In May, the average day length in Regal is 15h and 5min.

What time are sunrise and sunset in May in Regal?

In May, on the first day of the month, sunrise is at 5:44 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 5:10 am and sunset at 8:48 pm PDT.

How many hours of sunshine does Regal have in May?

In Regal, Washington, the average sunshine duration in May is 11h.

What is the UV index reading in May in Regal?

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

Average temperature in May - Regal, WA
  • Average high temperature in May: 64.9°F

The warmest months (with the highest average high temperature) are July and August (82°F).
The month with the lowest average high temperature is December (33.3°F).

  • Average low temperature in May: 43.3°F

The month with the highest average low temperature is August (55.2°F).
The coldest month (with the lowest average low temperature) is December (21.4°F).

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Average pressure in May
Regal, WA

Average pressure in May - Regal, WA
  • Average pressure in May: 29.97"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
Regal, WA

Average wind speed in May - Regal, WA
  • Average wind speed in May: 7.7mph

The windiest month (with the highest average wind speed) is June (8.9mph).
The calmest month (with the lowest average wind speed) is December (4.2mph).

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Average humidity in May
Regal, WA

Average humidity in May - Regal, WA
  • Average humidity in May: 58%

The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are July and August (46%).

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Average rainfall in May
Regal, WA

Average rainfall in May - Regal, WA
  • Average rainfall in May: 0.91"

The wettest month (with the highest rainfall) is December (1.3").
The driest month (with the least rainfall) is July (0.16").

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Average rainfall days in May
Regal, WA

Average rainfall days in May - Regal, WA
  • Average rainfall days in May: 9.6 days

The month with the highest number of rainy days is March (12.4 days).
The month with the least rainy days is August (2.8 days).

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Average snowfall in May
Regal, WA

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

The month with the highest snowfall is December (4.65").
The months with the least snowfall are May, June, July and August (0").

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Average snowfall days in May
Regal, WA

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

The months with the highest number of snowfall days are January and December (8.7 days).
The 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
Regal, WA

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

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in May: 11h and 0min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 4h and 48min).

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Average sunshine days in May
Regal, WA

Average sunshine days in May - Regal, WA
  • Average sunshine days in May: 19.6 days

The month with the most sunshine days is July (27.1 days).
The month with the least sunshine days is February (13.5 days).

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Average UV index in May
Regal, WA

Average UV index in May - Regal, 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, March, November and December (UV index 2).

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Average cloud cover in May
Regal, WA

Average cloud cover in May - Regal, WA
  • Average cloud cover in May: 26

The month with the most cloud cover is January (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 11).

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Average visibility in May
Regal, WA

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

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).

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Regal, Washington, USA

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