May weather forecast
Jacksonville, OR

Weather in May

The last month of the spring, May, is a comfortable month in Jacksonville, Oregon, with temperature in the range of an average high of 66°F (18.9°C) and an average low of 39.2°F (4°C).

Temperature

In May, the average high-temperature slightly increases from a moderate 57.2°F (14°C) in April to an enjoyable 66°F (18.9°C). In May, the average low-temperature is 39.2°F (4°C).

Humidity

In May, the average relative humidity is 72%.

Rainfall

In Jacksonville, in May, during 12.2 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In Jacksonville, during the entire year, the rain falls for 130.2 days and collects up to 19.17" (487mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Jacksonville, the average length of the day in May is 14h and 37min.
On the first day of the month, sunrise is at 6:06 am and sunset at 8:11 pm. On the last day of May, sunrise is at 5:38 am and sunset at 8:41 pm PDT.

Sunshine

The average sunshine in May in Jacksonville is 10.5h.

UV index

In Jacksonville, Oregon, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 4 in May interpret into the following advice:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in May in Jacksonville?

In May, the average high-temperature is 66°F (18.9°C), and the average low-temperature is 39.2°F (4°C).

What is the average humidity in May in Jacksonville?

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

How much does it rain in Jacksonville in May?

In Jacksonville, in May, it is raining for 12.2 days, with typically 1.57" (40mm) of accumulated precipitation.

When it does not snow in Jacksonville?

May through October are months without snowfall in Jacksonville, Oregon.

Does it snow in Jacksonville in May?

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

How many hours of daylight does Jacksonville have in May?

The average day length in May in Jacksonville is 14h and 37min.

When is the sunrise / sunset in May in Jacksonville?

On the first day of May, sunrise is at 6:06 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:41 pm PDT.

How long on average sun shines in May in Jacksonville?

In Jacksonville, the average sunshine duration in May is 10.5h.

What is the UV index intensity in May in Jacksonville?

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

Average temperature in May
Jacksonville, OR

Average temperature in May - Jacksonville, OR
  • Average high temperature in May: 66°F

The warmest month (with the highest average high temperature) is August (85.1°F).
The month with the lowest average high temperature is December (44.4°F).

  • Average low temperature in May: 39.2°F

The month with the highest average low temperature is August (49.5°F).
The coldest month (with the lowest average low temperature) is December (29.3°F).

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Average pressure in May
Jacksonville, OR

Average pressure in May - Jacksonville, OR
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).

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Average wind speed in May
Jacksonville, OR

Average wind speed in May - Jacksonville, OR
  • Average wind speed in May: 3.9mph

The windiest months (with the highest average wind speed) are January and March (4.2mph).
The calmest months (with the lowest average wind speed) are August, September and October (3.4mph).

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Average humidity in May
Jacksonville, OR

Average humidity in May - Jacksonville, OR
  • Average humidity in May: 72%

The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is August (59%).

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Average rainfall in May
Jacksonville, OR

Average rainfall in May - Jacksonville, OR
  • Average rainfall in May: 1.57"

The wettest month (with the highest rainfall) is December (3.11").
The driest month (with the least rainfall) is July (0.2").

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Average rainfall days in May
Jacksonville, OR

Average rainfall days in May - Jacksonville, OR
  • Average rainfall days in May: 12.2 days

The month with the highest number of rainy days is March (17.8 days).
The month with the least rainy days is August (3.7 days).

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Average snowfall in May
Jacksonville, OR

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

The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
Jacksonville, OR

Average snowfall days in May - Jacksonville, OR
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is February (4.8 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
Jacksonville, OR

Average daylight in May / Average sunshine in May - Jacksonville, OR
  • Average daylight in May: 14h and 37min

The month with the longest days is June (Average daylight: 15h and 14min).
The month with the shortest days is December (Average daylight: 9h and 9min).

  • Average sunshine in May: 10h and 30min

The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in May
Jacksonville, OR

Average sunshine days in May - Jacksonville, OR
  • Average sunshine days in May: 16.3 days

The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is March (11.2 days).

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Average UV index in May
Jacksonville, OR

Average UV index in May - Jacksonville, 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
Jacksonville, OR

Average cloud cover in May - Jacksonville, OR
  • Average cloud cover in May: 36

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 11).

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Average visibility in May
Jacksonville, OR

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

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

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