May weather forecast
Lebanon, OR

Weather in May

The last month of the spring, May, is an enjoyable month in Lebanon, Oregon, with an average temperature ranging between min 41.5°F (5.3°C) and max 65.3°F (18.5°C).

Temperature

In Lebanon, the average high-temperature in May marginally rises from a mild 57.6°F (14.2°C) in April to an enjoyable 65.3°F (18.5°C). The average low-temperature, in Lebanon, is 41.5°F (5.3°C).

Humidity

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

Rainfall

In Lebanon, it is raining for 13.3 days, with typically 1.85" (47mm) of accumulated precipitation. Throughout the year, in Lebanon, Oregon, there are 163.3 rainfall days, and 29.92" (760mm) of precipitation is accumulated.

Snowfall

In Lebanon, snow does not fall in April through October.

Daylight

In May, the average length of the day in Lebanon is 14h and 50min.
On the first day of the month, sunrise is at 6:01 am and sunset at 8:15 pm. On the last day of May, in Lebanon, Oregon, sunrise is at 5:30 am and sunset at 8:48 pm PDT.

Sunshine

In Lebanon, the average sunshine in May is 8.5h.

UV index

The average daily maximum UV index in May in Lebanon, Oregon, is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In May, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in May in Lebanon?

In Lebanon, Oregon, in May, the average high-temperature is 65.3°F (18.5°C), and the average low-temperature is 41.5°F (5.3°C).

What is the average humidity in May in Lebanon?

The average relative humidity in May in Lebanon, Oregon, is 78%.

How many days does it rain in May in Lebanon?

In Lebanon, Oregon, during May, the rain falls for 13.3 days and regularly aggregates up to 1.85" (47mm) of precipitation.

When it does not snow in Lebanon?

In Lebanon, snow does not fall in April through October.

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

In Lebanon, Oregon, the average day length in May is 14h and 50min.

What time are sunrise and sunset in May in Lebanon?

On the first day of May, sunrise is at 6:01 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 5:30 am and sunset at 8:48 pm PDT.

How long on average sun shines in May in Lebanon?

In Lebanon, Oregon, the average sunshine duration in May is 8.5h.

What is the UV index reading in May in Lebanon?

In May, the average daily maximum UV index in Lebanon is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Lebanon, OR

Average temperature in May - Lebanon, OR
  • Average high temperature in May: 65.3°F

The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (45.3°F).

  • Average low temperature in May: 41.5°F

The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).

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Average pressure in May
Lebanon, OR

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

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

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Average wind speed in May
Lebanon, OR

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

The windiest months (with the highest average wind speed) are January and March (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

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Average humidity in May
Lebanon, OR

Average humidity in May - Lebanon, OR
  • Average humidity in May: 78%

The months with the highest relative humidity are January, February, March and December (86%).
The month with the lowest relative humidity is August (66%).

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Average rainfall in May
Lebanon, OR

Average rainfall in May - Lebanon, OR
  • Average rainfall in May: 1.85"

The wettest month (with the highest rainfall) is December (4.41").
The driest month (with the least rainfall) is July (0.24").

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Average rainfall days in May
Lebanon, OR

Average rainfall days in May - Lebanon, OR
  • Average rainfall days in May: 13.3 days

The month with the highest number of rainy days is March (20.1 days).
The months with the least rainy days are July and August (3.8 days).

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Average snowfall in May
Lebanon, OR

Average snowfall in May - Lebanon, OR
  • Average snowfall in May: 0"

The month with the highest snowfall is February (2.13").
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
Lebanon, OR

Average snowfall days in May - Lebanon, OR
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Lebanon, OR
  • Average daylight in May: 14h and 50min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 53min).

  • Average sunshine in May: 8h and 30min

The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

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Average sunshine days in May
Lebanon, OR

Average sunshine days in May - Lebanon, OR
  • Average sunshine days in May: 15.5 days

The month with the most sunshine days is July (25.6 days).
The month with the least sunshine days is March (9.1 days).

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Average UV index in May
Lebanon, OR

Average UV index in May - Lebanon, 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
Lebanon, OR

Average cloud cover in May - Lebanon, OR
  • Average cloud cover in May: 48

The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 20).

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Average visibility in May
Lebanon, OR

Average visibility in May - Lebanon, OR
  • Average visibility in May: 5mi

The months with the highest visibility are July, August and September (6mi).
The month with the lowest visibility is February (4mi).

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