May weather forecast
Emerald, WA

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Weather in May

The last month of the spring, May, is a pleasant month in Emerald, Washington, with an average temperature ranging between min 48.7°F (9.3°C) and max 70.3°F (21.3°C).

Temperature

The shift into May is characterized by a rise in the average high-temperature, transitioning from April's refreshing 60.4°F (15.8°C) to a pleasant 70.3°F (21.3°C). From significant daily highs, Emerald's nights in May cool down to an average low-temperature of 48.7°F (9.3°C).

Humidity

The average relative humidity in May in Emerald is 50%.

Rainfall

May is the month with the most rainfall. Rain falls for 10.3 days and accumulates 1.1" (28mm) of precipitation.

Snowfall

April through August and October are months without snowfall.

Daylight

The average length of the day in May in Emerald is 15h and 1min.
On the first day of the month, sunrise is at 5:44 am and sunset at 8:09 pm. On the last day of May, in Emerald, sunrise is at 5:11 am and sunset at 8:44 pm PDT.

Sunshine

In May, the average sunshine is 10.7h.

UV index

In Emerald, Washington, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In May, the average maximum UV index of 5 translates into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature in Emerald?

May temperatures in Emerald, Washington, vary between a high-temperature of 70.3°F (21.3°C) and a low-temperature of 48.7°F (9.3°C).

What is the average humidity in May in Emerald?

In Emerald, the average relative humidity in May is 50%.

What is the wettest month in Emerald?

May is the month with the most rainfall in Emerald, Washington. Rain falls for 10.3 days and accumulates 1.1" (28mm) of precipitation.

How many days does it rain in May in Emerald?

In Emerald, Washington, in May, during 10.3 rainfall days, 1.1" (28mm) of precipitation is typically accumulated.

When it does not snow in Emerald?

April through August and October are months without snowfall in Emerald.

How many hours of daylight does Emerald have in May?

In Emerald, Washington, the average day length in May is 15h and 1min.

When is the sunrise / sunset in May in Emerald?

In May, on the first day of the month, sunrise is at 5:44 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 5:11 am and sunset at 8:44 pm PDT.

How long on average sun shines in May in Emerald?

The average sunshine duration in May is 10.7h.

What is the UV index reading in May in Emerald?

The average daily maximum UV index in May in Emerald, Washington, is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Emerald, WA

Average temperature in May - Emerald, WA
  • Average high temperature in May: 70.3°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is December (36.1°F).

  • Average low temperature in May: 48.7°F

The month with the highest average low temperature is August (61.5°F).
The coldest month (with the lowest average low temperature) is December (25.3°F).

Average pressure in May
Emerald, WA

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).

Average wind speed in May
Emerald, WA

Average wind speed in May - Emerald, WA
  • Average wind speed in May: 7.5mph

The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is December (5mph).

Average humidity in May
Emerald, WA

Average humidity in May - Emerald, WA
  • Average humidity in May: 50%

The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are July and August (38%).

Average rainfall in May
Emerald, WA

Average rainfall in May - Emerald, WA
  • Average rainfall in May: 1.1"

The wettest month (with the highest rainfall) is May (1.1").
The driest month (with the least rainfall) is July (0.24").

Average rainfall days in May
Emerald, WA

Average rainfall days in May - Emerald, WA
  • Average rainfall days in May: 10.3 days

The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is July (4.1 days).

Average snowfall in May
Emerald, WA

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

The month with the highest snowfall is December (2.24").
The months with the least snowfall are April, May, June, July, August and October (0").

Average snowfall days in May
Emerald, WA

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

The month with the highest number of snowfall days is December (5 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).

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

Average daylight in May / Average sunshine in May - Emerald, WA
  • Average daylight in May: 15h and 0min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in May: 10h and 4min

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).

Average sunshine days in May
Emerald, WA

Average sunshine days in May - Emerald, WA
  • Average sunshine days in May: 18.7 days

The month with the most sunshine days is July (26.2 days).
The month with the least sunshine days is March (15.4 days).

Average UV index in May
Emerald, WA

Average UV index in May - Emerald, WA
  • Average UV index in May: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in May
Emerald, WA

Average cloud cover in May - Emerald, WA
  • Average cloud cover in May: 28

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 10).

Average visibility in May
Emerald, WA

Average visibility in May - Emerald, 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).

Emerald, Washington, USA

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