La Grande
Oregon, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
La Grande, OR

May, the last month of the spring, in La Grande, is an enjoyable month, with temperature in the range of an average high of 67.1°F (19.5°C) and an average low of 41.7°F (5.4°C).

Temperature

In May, the average high-temperature slightly increases, from a moderate 58.3°F (14.6°C) in April, to a comfortable 67.1°F (19.5°C). The average low-temperature, in La Grande, is 41.7°F (5.4°C).

Rainfall

In La Grande, during 10 rainfall days, 1.9" (47.8mm) of precipitation is typically accumulated. Throughout the year, there are 101 rainfall days, and 16.8" (426.1mm) of precipitation is accumulated.

Snowfall

In La Grande snow does not fall through September.

Daylight

In La Grande, the average length of the day is 14.9h.

Sunshine

In La Grande, the average sunshine in May is 9h.

UV index

In La Grande, the average daily maximum UV index in May is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to the UV radiation for average individuals.
Note: The average daily UV index of 7 transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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.

What is the temperature in May in La Grande?

In La Grande, in May, the average high-temperature is 67.1°F (19.5°C), and the average low-temperature is 41.7°F (5.4°C).

How many days does it rain in May in La Grande?

In La Grande, in May, during 10 rainfall days, 1.9" (47.8mm) of precipitation is typically accumulated.

Does it snow in La Grande in May?

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

When it does not snow in La Grande?

May through September are months without snowfall.

What is the average length of the day in May in La Grande?

The average length of the day in May in La Grande, Oregon, is 14.9h.

How long on average sun shines in May in La Grande?

The average sunshine in May in La Grande is 9h.

What is the UV index intensity in May in La Grande?

In La Grande, the average daily maximum UV index in May is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from the exposure to the Sun's UV radiation.
Average temperature in May - La Grande, OR
  • Average high temperature in May: 67.1°F

The warmest month (with the highest average high temperature) is August (86°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in May: 41.8°F

The month with the highest average low temperature is July (53.5°F).
The coldest month (with the lowest average low temperature) is January (24.2°F).

Average rainfall in May - La Grande, OR
  • Average rainfall in May: 1.9"

The wettest month (with the highest rainfall) is November (2").
The driest month (with the lowest rainfall) is July (0.7").

Average rainfall days in May - La Grande, OR
  • Average rainfall days in May: 10 days

Months with the highest number of rainy days are January, March, November and December (11 days).
Months with the lowest number of rainy days are July and August (4 days).

Average snowfall in May - La Grande, OR
  • Average snowfall in May: 0"

The month with the highest snowfall is January (7").
Months with the lowest snowfall are May, June, July, August and September (0").

Average daylight in May / Average sunshine in May - La Grande, OR
  • Average daylight in May: 14.9h

The month with the longest days is June (Average daylight: 15.6h).
The month with shortest days is December (Average daylight: 8.8h).

  • Average sunshine in May: 9h

The month with most sunshine is July (Average sunshine: 13h).
The month with least sunshine is December (Average sunshine: 2h).

Average UV index in May - La Grande, OR
  • Average UV index in May: 7

The month with the highest UV index is July (UV index 9).
Months with the lowest UV index are January and December (UV index 1).