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

Monthly weather forecast and climate
Umatilla, OR

January, like December, in Umatilla, Oregon, is another cold winter month, with average temperature fluctuating between 25.2°F (-3.8°C) and 39.9°F (4.4°C). With an average high-temperature of 39.9°F (4.4°C) and an average low-temperature of 25.2°F (-3.8°C), January is the coldest month. Weather in January »
February, the last month of the winter, in Umatilla, is a chilly month, with average temperature fluctuating between 47.5°F (8.6°C) and 28.9°F (-1.7°C). In February, the average high-temperature marginally rises, from a wintry 39.9°F (4.4°C) in January, to a frosty 47.5°F (8.6°C). Weather in February »

March, the first month of the spring, in Umatilla, is a mild month, with average temperature ranging between max 58.6°F (14.8°C) and min 33.8°F (1°C). In March, the average high-temperature rises, from a frosty 47.5°F (8.6°C) in February, to a moderate 58.6°F (14.8°C). Weather in March »

April is an agreeable spring month in Umatilla, Oregon, with average temperature varying between 40.3°F (4.6°C) and 68.5°F (20.3°C). In April, the average high-temperature rises, from a moderate 58.6°F (14.8°C) in March, to an agreeable 68.5°F (20.3°C). Weather in April »

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). 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). Weather in May »

The first month of the summer, June, is still a warm month in Umatilla, Oregon, with average temperature fluctuating between 54°F (12.2°C) and 83.8°F (28.8°C). In Umatilla, Oregon, the average high-temperature in June slightly increases, from 76.6°F (24.8°C) in May, to a still moderately hot 83.8°F (28.8°C). Weather in June »

July is a hot summer month in Umatilla, Oregon, with average temperature fluctuating between 92.7°F (33.7°C) and 59.4°F (15.2°C). With an average high-temperature of 92.7°F (33.7°C) and an average low-temperature of 59.4°F (15.2°C), July is the warmest month. Weather in July »

August, the last month of the summer, in Umatilla, is another tropical month, with average temperature ranging between min 57.4°F (14.1°C) and max 90.5°F (32.5°C). In August, the average high-temperature is practically the same as in July - a still hot 90.5°F (32.5°C). Weather in August »

The first month of the autumn, September, is also a moderately hot month in Umatilla, Oregon, with average temperature varying between 48.9°F (9.4°C) and 80.8°F (27.1°C). In Umatilla, Oregon, the average high-temperature decreases, from a tropical 90.5°F (32.5°C) in August, to a warm 80.8°F (27.1°C). Weather in September »

October, the same as September, is another enjoyable autumn month in Umatilla, Oregon, with average temperature ranging between max 66.9°F (19.4°C) and min 40.1°F (4.5°C). In Umatilla, the average high-temperature decreases, from a moderately hot 80.8°F (27.1°C) in September, to an enjoyable 66.9°F (19.4°C). Weather in October »

November, the last month of the autumn, in Umatilla, is also a fresh month, with temperature in the range of an average low of 32.7°F (0.4°C) and an average high of 50.9°F (10.5°C). In Umatilla, the average high-temperature plummets, from an enjoyable 66.9°F (19.4°C) in October, to a cool 50.9°F (10.5°C). Weather in November »

December, the first month of the winter, in Umatilla, is also a wintry month, with temperature in the range of an average low of 28.4°F (-2°C) and an average high of 42.1°F (5.6°C). In December, the average high-temperature marginally drops, from a fresh 50.9°F (10.5°C) in November, to a cold 42.1°F (5.6°C). Weather in December »

What is the coldest month in Umatilla?

The coldest month is January, with an average high-temperature of 39.9°F (4.4°C) and an average low-temperature of 25.2°F (-3.8°C).

How many days does it rain in Umatilla?

Throughout the year, in Umatilla, Oregon, there are 60 rainfall days, and 8" (203.8mm) of precipitation is accumulated.

When does it snow in Umatilla?

January through March, November and December are months with snowfall in Umatilla, Oregon.

How much does it snow in Umatilla?

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

What is the snowiest month in Umatilla?

January is the month with the most snowfall, with 3.9" (99.1mm) of accumulated snow.

When are the longest days in Umatilla?

The month with the longest days in Umatilla, Oregon, is June, with an average of 15.7h of daylight.

What is the warmest month in Umatilla?

July is the warmest month, with an average high-temperature of 92.7°F (33.7°C) and an average low-temperature of 59.4°F (15.2°C).

What is the driest month in Umatilla?

July is the month with the least rainfall in Umatilla. Rain falls for 1 days and accumulates 0.2" (4.1mm) of precipitation.

What is the rainiest month in Umatilla?

The month with the most rainfall is December when the rain falls for 8 days and typically aggregates up to 1.1" (27.7mm) of precipitation.

What is the month with the shortest days in Umatilla?

The month with the shortest days in Umatilla is December, with an average of 8.7h of daylight.
Average rainfall - Umatilla, OR

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 - Umatilla, OR
Average snowfall - Umatilla, OR
Average daylight - Umatilla, OR

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