May weather forecast
Greenacres, WA

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Weather in May

May, the last month of the spring in Greenacres, is a refreshing month, with temperature in the range of an average low of 41.2°F (5.1°C) and an average high of 65.1°F (18.4°C).

Temperature

The onset of May brings a temperature shift, with the average high-temperature moving from a cool 54.1°F (12.3°C) in April to a refreshing 65.1°F (18.4°C). Greenacres anticipates a stark contrast in temperature during May nights, with an average low of 41.2°F (5.1°C).

Humidity

The average relative humidity in May is 65%.

Rainfall

In Greenacres, in May, it is raining for 12.7 days, with typically 1.61" (41mm) of accumulated precipitation. Throughout the year, in Greenacres, there are 125.4 rainfall days, and 17.28" (439mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. May is the last month it regularly snows in Greenacres, Washington. During 0.2 snowfall days, in May, Greenacres aggregates 0.04" (1mm) of snow. In Greenacres, during the entire year, snow falls for 56.4 days and aggregates up to 37.4" (950mm) of snow.

Daylight

The average length of the day in May is 15h and 10min.
On the first day of the month, sunrise is at 5:29 am and sunset at 8:01 pm. On the last day of May, sunrise is at 4:54 am and sunset at 8:38 pm PDT.

Sunshine

In Greenacres, the average sunshine in May is 10.3h.

UV index

The average daily maximum UV index in May in Greenacres, Washington, is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 4 in May interprets into the following recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What are the temperatures in Greenacres in May?

Greenacres in May has an average high-temperature of 65.1°F (18.4°C) and an average low-temperature of 41.2°F (5.1°C).

What is the average humidity in May in Greenacres?

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

How many days does it rain in May in Greenacres?

In May, in Greenacres, the rain falls for 12.7 days. Throughout May, 1.61" (41mm) of precipitation is accumulated.

What is the last month it snows in Greenacres?

May is the last month it regularly snows in Greenacres. During 0.2 snowfall days, in May, Greenacres aggregates 0.04" (1mm) of snow.

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

In Greenacres, the average day length in May is 15h and 10min.

When is the sunrise / sunset in May in Greenacres?

In May, on the first day of the month, sunrise is at 5:29 am and sunset at 8:01 pm. On the last day of the month, in Greenacres, Washington, sunrise is at 4:54 am and sunset at 8:38 pm PDT.

How many hours of sunshine does Greenacres have in May?

The average sunshine duration in May in Greenacres is 10.3h.

How high is the UV index in May in Greenacres?

The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Greenacres, WA

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

The warmest month (with the highest average high temperature) is August (83.3°F).
The month with the lowest average high temperature is December (32°F).

  • Average low temperature in May: 41.2°F

The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).

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Average pressure in May
Greenacres, WA

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

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed in May
Greenacres, WA

Average wind speed in May - Greenacres, WA
  • Average wind speed in May: 5.5mph

The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is December (4.7mph).

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Average humidity in May
Greenacres, WA

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

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (43%).

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Average rainfall in May
Greenacres, WA

Average rainfall in May - Greenacres, WA
  • Average rainfall in May: 1.61"

The wettest month (with the highest rainfall) is January (2.28").
The driest months (with the least rainfall) are July and August (0.35").

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Average rainfall days in May
Greenacres, WA

Average rainfall days in May - Greenacres, WA
  • Average rainfall days in May: 12.7 days

The month with the highest number of rainy days is March (16 days).
The month with the least rainy days is July (5.1 days).

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Average snowfall in May
Greenacres, WA

Average snowfall in May - Greenacres, WA
  • Average snowfall in May: 0.04"

The month with the highest snowfall is January (10.51").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in May
Greenacres, WA

Average snowfall days in May - Greenacres, WA
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is December (13.9 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
Greenacres, WA

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

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in May: 10h and 2min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).

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Average sunshine days in May
Greenacres, WA

Average sunshine days in May - Greenacres, WA
  • Average sunshine days in May: 16.4 days

The month with the most sunshine days is July (24.3 days).
The month with the least sunshine days is March (10.3 days).

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Average UV index in May
Greenacres, WA

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

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in May
Greenacres, WA

Average cloud cover in May - Greenacres, WA
  • Average cloud cover in May: 34

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 13).

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Average visibility in May
Greenacres, WA

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

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

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Greenacres, Washington, USA

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