May weather forecast
South Prairie, WA

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Weather in May

May, the last month of the spring in South Prairie, is a refreshing month, with temperature in the range of an average high of 60.6°F (15.9°C) and an average low of 40.6°F (4.8°C).

Temperature

With the onset of May, South Prairie's average high-temperature experiences a slight rise, moving from April's fresh 51.8°F (11°C) to a moderate 60.6°F (15.9°C). Throughout May nights, South Prairie experiences a consistent temperature average of 40.6°F (4.8°C).

Humidity

In May, the average relative humidity in South Prairie is 78%.

Rainfall

In South Prairie, during May, the rain falls for 14.9 days and regularly aggregates up to 2.44" (62mm) of precipitation. Throughout the year, in South Prairie, Washington, there are 189.1 rainfall days, and 41.93" (1065mm) of precipitation is accumulated.

Snowfall

In South Prairie, snow does not fall in May through October.

Daylight

In South Prairie, the average length of the day in May is 15h and 7min.
On the first day of the month, sunrise is at 5:50 am and sunset at 8:19 pm. On the last day of May, sunrise is at 5:16 am and sunset at 8:55 pm PDT.

Sunshine

The average sunshine in May in South Prairie, Washington, is 8.5h.

UV index

In South Prairie, Washington, 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 unsafe exposure to UV radiation for average individuals.
Note: A maximum daily UV index of 4 during May morphs into the following directions:
Take necessary precautions - Defending against sun damage is advocated. To protect against the Sun's most potent rays, avoid direct exposure around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
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Frequently asked questions

What is the average May temperature in South Prairie?

May temperatures in South Prairie vary between a high-temperature of 60.6°F (15.9°C) and a low-temperature of 40.6°F (4.8°C).

What is the average humidity in May in South Prairie?

The average relative humidity in May in South Prairie is 78%.

How many days does it rain in May in South Prairie?

In South Prairie, in May, it is raining for 14.9 days, with typically 2.44" (62mm) of accumulated precipitation.

When it does not snow in South Prairie?

May through October are months without snowfall.

Does it snow in South Prairie in May?

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

What is the average length of the day in May in South Prairie?

In South Prairie, the average day length in May is 15h and 7min.

When are sunrise and sunset in May in South Prairie?

In May, on the first day of the month, sunrise is at 5:50 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 5:16 am and sunset at 8:55 pm PDT.

How long on average sun shines in May in South Prairie?

In May, the average sunshine duration in South Prairie is 8.5h.

How high is the UV index in May in South Prairie?

In South Prairie, Washington, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium health risk from unsafe 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
South Prairie, WA

Average temperature in May - South Prairie, WA
  • Average high temperature in May: 60.6°F

The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is December (39.9°F).

  • Average low temperature in May: 40.6°F

The month with the highest average low temperature is August (49.3°F).
The coldest month (with the lowest average low temperature) is December (29.8°F).

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Average pressure in May
South Prairie, WA

Average pressure in May - South Prairie, WA
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).

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Average wind speed in May
South Prairie, WA

Average wind speed in May - South Prairie, WA
  • Average wind speed in May: 3.9mph

The windiest month (with the highest average wind speed) is January (5.3mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

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Average humidity in May
South Prairie, WA

Average humidity in May - South Prairie, WA
  • Average humidity in May: 78%

The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is July (70%).

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Average rainfall in May
South Prairie, WA

Average rainfall in May - South Prairie, WA
  • Average rainfall in May: 2.44"

The wettest months (with the highest rainfall) are January and December (6.1").
The driest month (with the least rainfall) is July (0.63").

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Average rainfall days in May
South Prairie, WA

Average rainfall days in May - South Prairie, WA
  • Average rainfall days in May: 14.9 days

The month with the highest number of rainy days is March (21.2 days).
The month with the least rainy days is August (7.6 days).

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Average snowfall in May
South Prairie, WA

Average snowfall in May - South Prairie, WA
  • Average snowfall in May: 0"

The month with the highest snowfall is February (5.2").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
South Prairie, WA

Average snowfall days in May - South Prairie, WA
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are June, July, August and October (0 days).

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Average daylight in May /
Average sunshine in May
South Prairie, WA

Average daylight in May / Average sunshine in May - South Prairie, 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 36min).

  • Average sunshine in May: 8h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).

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Average sunshine days in May
South Prairie, WA

Average sunshine days in May - South Prairie, WA
  • Average sunshine days in May: 13.5 days

The month with the most sunshine days is July (21.2 days).
The month with the least sunshine days is March (7.8 days).

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Average UV index in May
South Prairie, WA

Average UV index in May - South Prairie, WA
  • Average UV index in May: 4

The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is November (UV index 1).

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Average cloud cover in May
South Prairie, WA

Average cloud cover in May - South Prairie, WA
  • Average cloud cover in May: 48

The month with the most cloud cover is March (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in May
South Prairie, WA

Average visibility in May - South Prairie, WA
  • Average visibility in May: 5mi

The months with the highest visibility are April, May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, November and December (4mi).

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South Prairie, Washington, USA

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