Kelso
Washington, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Kelso, WA

January is a chilly winter month in Kelso, Washington, with average temperature ranging between max 44.2°F (6.8°C) and min 33.4°F (0.8°C). In Kelso, the average high-temperature is practically the same as in December - a frosty 44.2°F (6.8°C). Weather in January »

February, the last month of the winter, in Kelso, is another chilly month, with average temperature ranging between min 33.3°F (0.7°C) and max 45.5°F (7.5°C). In Kelso, the average high-temperature is practically the same as in January - a still frosty 45.5°F (7.5°C). Weather in February »

March, the first month of the spring, in Kelso, is a cool month, with temperature in the range of an average high of 50°F (10°C) and an average low of 34.7°F (1.5°C). In March, the average high-temperature is relatively the same as in February - a cool 50°F (10°C). Weather in March »

April in Kelso, Washington, is a mild spring month, with average temperature ranging between min 36.7°F (2.6°C) and max 55.9°F (13.3°C). In Kelso, the average high-temperature slightly increases, from a cool 50°F (10°C) in March, to a moderate 55.9°F (13.3°C). Weather in April »

May, the last month of the spring, in Kelso, is a comfortable month, with average temperature fluctuating between 40.8°F (4.9°C) and 64.8°F (18.2°C). In Kelso, the average high-temperature slightly increases, from a moderate 55.9°F (13.3°C) in April, to an enjoyable 64.8°F (18.2°C). Weather in May »

The first month of the summer, June, is a pleasant month in Kelso, Washington, with average temperature fluctuating between 69.4°F (20.8°C) and 44.6°F (7°C). In Kelso, the average high-temperature is practically the same as in May - a pleasant 69.4°F (20.8°C). Weather in June »

July is a warm summer month in Kelso, Washington, with average temperature fluctuating between 76.8°F (24.9°C) and 48.9°F (9.4°C). In July, the average high-temperature marginally rises, from an agreeable 69.4°F (20.8°C) in June, to a moderately hot 76.8°F (24.9°C). Weather in July »

August, the last month of the summer, in Kelso, is also a moderately hot month, with temperature in the range of an average high of 77.9°F (25.5°C) and an average low of 49.8°F (9.9°C). With an average high-temperature of 77.9°F (25.5°C) and an average low-temperature of 49.8°F (9.9°C), August is the warmest month. Weather in August »

September, the first month of the autumn, in Kelso, is also an agreeable month, with average temperature fluctuating between 70.7°F (21.5°C) and 47.3°F (8.5°C). In September, the average high-temperature marginally drops, from a warm 77.9°F (25.5°C) in August, to an agreeable 70.7°F (21.5°C). Weather in September »

October, the same as September, in Kelso, Washington, is another mild autumn month, with temperature in the range of an average low of 42.3°F (5.7°C) and an average high of 59°F (15°C). In October, the average high-temperature decreases, from an agreeable 70.7°F (21.5°C) in September, to a moderate 59°F (15°C). Weather in October »

The last month of the autumn, November, is also a frosty month in Kelso, Washington, with average temperature fluctuating between 37.6°F (3.1°C) and 48.4°F (9.1°C). In Kelso, the average high-temperature in November drops, from a mild 59°F (15°C) in October, to a chilly 48.4°F (9.1°C). Weather in November »

The first month of the winter, December, is still a cold month in Kelso, Washington, with temperature in the range of an average low of 32.7°F (0.4°C) and an average high of 42.3°F (5.7°C). The coldest month is December, with an average high-temperature of 42.3°F (5.7°C) and an average low-temperature of 32.7°F (0.4°C). Weather in December »

What is the most humid month in Kelso?

Months with the highest humidity in Kelso are January, February, November and December, with an average relative humidity of 88%.

How many days does it rain in Kelso?

In Kelso, Washington, during the entire year, the rain falls for 175.5 days and collects up to 25.83" (656mm) of precipitation.

What is the rainiest month in Kelso?

January is the month with the most rainfall in Kelso, Washington. Rain falls for 18.7 days and accumulates 3.9" (99mm) of precipitation.

When does it snow in Kelso?

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

How much does it snow in Kelso?

In Kelso, during the entire year, snow falls for 6.7 days, and aggregates up to 3.54" (90mm) of snow.

What is the snowiest month in Kelso?

The month with the most snowfall is January when snow falls for 1.7 days and typically aggregates up to 1.26" (32mm) of snow.

What is the month with the least sunshine in Kelso?

Months with the least sunshine in Kelso, Washington, are January, February and December, with an average of 3.5h of sunshine.

When it does not snow in Kelso?

April through October are months without snowfall in Kelso.

When are the longest days in Kelso?

With an average of 15.7h of daylight, June has the longest days of the year in Kelso, Washington.

What are the months with the highest UV index in Kelso?

June and July, with an average maximum UV index of 5, are months with the highest UV index.

What is the least humid month in Kelso?

The least humid month in Kelso is July, with an average relative humidity of 72%.

What is the warmest month in Kelso?

With an average high-temperature of 77.9°F (25.5°C) and an average low-temperature of 49.8°F (9.9°C), August is the warmest month in Kelso, Washington.

What is the driest month in Kelso?

The month with the least rainfall is August when the rain falls for 6.3 days and typically collects 0.39" (10mm) of precipitation.

What month has the most sunshine in Kelso?

The month with the most sunshine is August, with an average of 10.4h of sunshine.

What is the month with the lowest UV index in Kelso?

November is the month with the lowest UV index, with an average maximum UV index of 1.

What is the coldest month in Kelso?

December is the coldest month in Kelso, with an average high-temperature of 42.3°F (5.7°C) and an average low-temperature of 32.7°F (0.4°C).

What is the month with the shortest days in Kelso?

The month with the shortest days in Kelso is December, with an average of 8.7h of daylight.
Average temperature - Kelso, WA
Average humidity - Kelso, WA

Months with the highest relative humidity are January, February, November and December (88%).
The month with the lowest relative humidity is July (72%).

Average rainfall - Kelso, WA

The wettest month (with the highest rainfall) is January (3.9").
The driest month (with the lowest rainfall) is August (0.39").

Average rainfall days - Kelso, WA

The month with the highest number of rainy days is March (20.3 days).
The month with the lowest number of rainy days is July (6.1 days).

Average snowfall - Kelso, WA

The month with the highest snowfall is January (1.26").
Months with the lowest snowfall are April, May, June, July, August, September and October (0").

Average snowfall days - Kelso, WA

The month with the highest number of snowfall days is February (2.2 days).
Months with the lowest number of snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight / Average sunshine - Kelso, WA

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

The month with most sunshine is August (Average sunshine: 10.4h).
Months with least sunshine are January, February and December (Average sunshine: 3.5).