Umatilla
Oregon, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Umatilla, OR

The last month of the spring, May, is a moderately hot month in Umatilla, Oregon, with average temperature fluctuating between 46.9°F (8.3°C) and 76.6°F (24.8°C).

Temperature

In May, the average high-temperature slightly increases, from a pleasant 68.5°F (20.3°C) in April, to a warm 76.6°F (24.8°C). In Umatilla, the average low-temperature is 46.9°F (8.3°C).

Rainfall

In Umatilla, during May, the rain falls for 4 days and regularly aggregates up to 0.6" (15.7mm) of precipitation. Throughout the year, there are 60 rainfall days, and 8" (203.8mm) of precipitation is accumulated.

Snowfall

Throughout the year, 8.1" (205.7mm) of snow is accumulated.

Daylight

In May, the average length of the day in Umatilla, Oregon, is 15h.

What is the temperature in May in Umatilla?

In May, in Umatilla, Oregon, the average high-temperature is 76.6°F (24.8°C), and the average low-temperature is 46.9°F (8.3°C).

How many days does it rain in May in Umatilla?

In May, the rain falls for 4 days. Throughout May, 0.6" (15.7mm) of precipitation is accumulated.

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

In Umatilla, the average length of the day in May is 15h.
Average temperature in May - Umatilla, OR
  • Average high temperature in May: 76.7°F

The warmest month (with the highest average high temperature) is July (92.6°F).
The month with the lowest average high temperature is January (40°F).

  • Average low temperature in May: 47°F

The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

Average rainfall in May - Umatilla, OR
  • Average rainfall in May: 0.6"

Wettest months (with the highest rainfall) are January, November and December (1.1").
The driest month (with the lowest rainfall) is July (0.2").

Average rainfall days in May - Umatilla, OR
  • Average rainfall days in May: 4 days

Months with the highest number of rainy days are January and December (8 days).
The month with the lowest number of rainy days is July (1 days).

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

The month with the highest snowfall is January (3.9").
Months with the lowest snowfall are April, May, June, July, August, September and October (0").

Average daylight in May - Umatilla, OR
  • Average daylight in May: 15h

The month with the longest days is June (Average daylight: 15.7h).
The month with shortest days is December (Average daylight: 8.7h).