May weather forecast
Weston, OR

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Weather in May

May, the last month of the spring in Weston, is a comfortable month, with an average temperature fluctuating between 61.5°F (16.4°C) and 39.7°F (4.3°C).

Temperature

As April transitions into May, a change in temperatures is observed, with average highs moving from a fresh 52.3°F (11.3°C) to an enjoyable 61.5°F (16.4°C). Weston encounters a significant temperature differential, with an average low-temperature of 39.7°F (4.3°C) during May nights.

Humidity

The average relative humidity in May in Weston is 68%.

Rainfall

In Weston, in May, it is raining for 15.4 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, there are 127.6 rainfall days, and 24.33" (618mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Weston are January through May, September through December. May is the last month it regularly snows in Weston. During 2.2 snowfall days, in May, Weston aggregates 0.75" (19mm) of snow. In Weston, during the entire year, snow falls for 84.8 days and aggregates up to 74.33" (1888mm) of snow.

Daylight

In Weston, the average length of the day in May is 14h and 58min.
On the first day of the month, sunrise is at 5:39 am and sunset at 8:01 pm. On the last day of May, sunrise is at 5:07 am and sunset at 8:35 pm PDT.

Sunshine

The average sunshine in May in Weston is 10.3h.

UV index

The average daily maximum UV index in May in Weston is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In May, an average UV index of 4 transforms into the following instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

What is the temperature in May in Weston?

An average high-temperature, in May, in Weston, is 61.5°F (16.4°C) and the average low-temperature is 39.7°F (4.3°C).

What is the average humidity in May in Weston?

In Weston, Oregon, the average relative humidity in May is 68%.

How much does it rain in Weston in May?

In Weston, in May, it is raining for 15.4 days, with typically 2.24" (57mm) of accumulated precipitation.

What is the last month it snows in Weston?

May is the last month it regularly snows. During 2.2 snowfall days, in May, Weston aggregates 0.75" (19mm) of snow.

How many hours of daylight does Weston have in May?

In Weston, the average day length in May is 14h and 58min.

When are sunrise and sunset in May in Weston?

On the first day of May in Weston, Oregon, sunrise is at 5:39 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:07 am and sunset at 8:35 pm PDT.

How long on average sun shines in May in Weston?

The average sunshine duration in May is 10.3h.

What is the UV index intensity in May in Weston?

The average daily maximum UV index in May in Weston is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
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
Weston, OR

Average temperature in May - Weston, OR
  • Average high temperature in May: 61.5°F

The warmest month (with the highest average high temperature) is August (80.6°F).
The month with the lowest average high temperature is December (34.5°F).

  • Average low temperature in May: 39.7°F

The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (22.3°F).

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Average pressure in May
Weston, OR

Average pressure in May - Weston, OR
  • Average pressure in May: 29.95"Hg

The month with the highest atmospheric pressure is January (30.21"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed in May
Weston, OR

Average wind speed in May - Weston, OR
  • Average wind speed in May: 5.6mph

The windiest month (with the highest average wind speed) is March (6.7mph).
The calmest month (with the lowest average wind speed) is September (4.9mph).

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Average humidity in May
Weston, OR

Average humidity in May - Weston, OR
  • Average humidity in May: 68%

The months with the highest relative humidity are January, February and December (84%).
The month with the lowest relative humidity is August (44%).

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Average rainfall in May
Weston, OR

Average rainfall in May - Weston, OR
  • Average rainfall in May: 2.24"

The wettest month (with the highest rainfall) is February (3.23").
The driest month (with the least rainfall) is July (0.24").

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Average rainfall days in May
Weston, OR

Average rainfall days in May - Weston, OR
  • Average rainfall days in May: 15.4 days

The month with the highest number of rainy days is March (15.9 days).
The month with the least rainy days is August (4.8 days).

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Average snowfall in May
Weston, OR

Average snowfall in May - Weston, OR
  • Average snowfall in May: 0.75"

The month with the highest snowfall is February (19.21").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in May
Weston, OR

Average snowfall days in May - Weston, OR
  • Average snowfall days in May: 2.2 days

The month with the highest number of snowfall days is December (17.7 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in May /
Average sunshine in May
Weston, OR

Average daylight in May / Average sunshine in May - Weston, OR
  • 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 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: 4h and 36min).

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Average sunshine days in May
Weston, OR

Average sunshine days in May - Weston, OR
  • Average sunshine days in May: 12.8 days

The month with the most sunshine days is July (24.5 days).
The months with the least sunshine days are February and March (8.2 days).

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Average UV index in May
Weston, OR

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

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Average cloud cover in May
Weston, OR

Average cloud cover in May - Weston, OR
  • Average cloud cover in May: 34

The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 11).

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Average visibility in May
Weston, OR

Average visibility in May - Weston, OR
  • 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, February and December (5mi).

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Weston, Oregon, USA

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