May weather forecast
West Slope, OR

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Weather in May

May, the last month of the spring in West Slope, is a comfortable month, with an average temperature ranging between min 44.6°F (7°C) and max 67.6°F (19.8°C).

Temperature

With the onset of May, West Slope sees a temperature rise, with the average high-temperature moving from April's refreshing 58.6°F (14.8°C) to a comfortable 67.6°F (19.8°C). Despite higher daytime temperatures, nighttime averages fall to a frosty 44.6°F (7°C) in May.

Humidity

The average relative humidity in May in West Slope is 72%.

Rainfall

In West Slope, during May, the rain falls for 13.8 days and regularly aggregates up to 1.69" (43mm) of precipitation. Throughout the year, in West Slope, there are 173.2 rainfall days, and 30.55" (776mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In May, the average length of the day in West Slope is 14h and 56min.
On the first day of May in West Slope, sunrise is at 5:57 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 8:52 pm PDT.

Sunshine

In West Slope, the average sunshine in May is 8.7h.

UV index

The average daily maximum UV index in May in West Slope, Oregon, is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: An average UV index of 4 in May transforms into this advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

What is the temperature in May in West Slope?

An average high-temperature, in May, in West Slope, is 67.6°F (19.8°C) and the average low-temperature is 44.6°F (7°C).

What is the average humidity in May in West Slope?

In May, the average relative humidity in West Slope is 72%.

How many days does it rain in May in West Slope?

In West Slope, during May, the rain falls for 13.8 days and regularly aggregates up to 1.69" (43mm) of precipitation.

When it does not snow in West Slope?

April through October are months without snowfall in West Slope.

How many hours of daylight does West Slope have in May?

In May, the average day length is 14h and 56min.

When is the sunrise / sunset in May in West Slope?

On the first day of May in West Slope, Oregon, sunrise is at 5:57 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 8:52 pm PDT.

How long on average sun shines in May in West Slope?

In West Slope, Oregon, the average sunshine duration in May is 8.7h.

What is the UV index reading in May in West Slope?

The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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
West Slope, OR

Average temperature in May - West Slope, OR
  • Average high temperature in May: 67.6°F

The warmest month (with the highest average high temperature) is August (81.7°F).
The month with the lowest average high temperature is December (44.2°F).

  • Average low temperature in May: 44.6°F

The month with the highest average low temperature is August (55.6°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).

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Average pressure in May
West Slope, OR

Average pressure in May - West Slope, OR
  • Average pressure in May: 30.03"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

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Average wind speed in May
West Slope, OR

Average wind speed in May - West Slope, OR
  • Average wind speed in May: 4.3mph

The windiest month (with the highest average wind speed) is January (5.4mph).
The calmest month (with the lowest average wind speed) is August (4mph).

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Average humidity in May
West Slope, OR

Average humidity in May - West Slope, OR
  • Average humidity in May: 72%

The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is August (63%).

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Average rainfall in May
West Slope, OR

Average rainfall in May - West Slope, OR
  • Average rainfall in May: 1.69"

The wettest month (with the highest rainfall) is December (4.61").
The driest month (with the least rainfall) is July (0.31").

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Average rainfall days in May
West Slope, OR

Average rainfall days in May - West Slope, OR
  • Average rainfall days in May: 13.8 days

The month with the highest number of rainy days is March (20.6 days).
The month with the least rainy days is August (4.6 days).

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Average snowfall in May
West Slope, OR

Average snowfall in May - West Slope, OR
  • Average snowfall in May: 0"

The month with the highest snowfall is February (1.61").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in May
West Slope, OR

Average snowfall days in May - West Slope, OR
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
West Slope, OR

Average daylight in May / Average sunshine in May - West Slope, OR
  • Average daylight in May: 14h and 5min

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

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

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Average sunshine days in May
West Slope, OR

Average sunshine days in May - West Slope, OR
  • Average sunshine days in May: 15.8 days

The month with the most sunshine days is July (24.9 days).
The month with the least sunshine days is March (8.6 days).

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Average UV index in May
West Slope, OR

Average UV index in May - West Slope, OR
  • 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, November and December (UV index 2).

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Average cloud cover in May
West Slope, OR

Average cloud cover in May - West Slope, OR
  • Average cloud cover in May: 47

The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).

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Average visibility in May
West Slope, OR

Average visibility in May - West Slope, OR
  • Average visibility in May: 5mi

The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).

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West Slope, Oregon, USA

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