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

Monthly weather forecast and climate
Dayton, WA

January, like December, in Dayton, Washington, is another cold winter month, with average temperature ranging between max 40.3°F (4.6°C) and min 26.2°F (-3.2°C). With an average high-temperature of 40.3°F (4.6°C) and an average low-temperature of 26.2°F (-3.2°C), January is the coldest month. Weather in January »
The last month of the winter, February, is a frosty month in Dayton, Washington, with average temperature varying between 45.9°F (7.7°C) and 29.5°F (-1.4°C). In Dayton, the average high-temperature marginally rises, from a cold 40.3°F (4.6°C) in January, to a frosty 45.9°F (7.7°C). Weather in February »

March, the first month of the spring, in Dayton, is a cool month, with temperature in the range of an average low of 34.2°F (1.2°C) and an average high of 53.4°F (11.9°C). In March, the average high-temperature marginally rises, from a frosty 45.9°F (7.7°C) in February, to a cool 53.4°F (11.9°C). Weather in March »

April is a comfortable spring month in Dayton, Washington, with average temperature fluctuating between 38.7°F (3.7°C) and 61.2°F (16.2°C). In Dayton, the average high-temperature marginally rises, from a cool 53.4°F (11.9°C) in March, to a comfortable 61.2°F (16.2°C). Weather in April »

May, the last month of the spring, in Dayton, is an agreeable month, with average temperature varying between 44.8°F (7.1°C) and 69.1°F (20.6°C). In May, the average high-temperature marginally rises, from a comfortable 61.2°F (16.2°C) in April, to a pleasant 69.1°F (20.6°C). Weather in May »

June, the first month of the summer, in Dayton, is a warm month, with average temperature ranging between min 50.4°F (10.2°C) and max 77.2°F (25.1°C). In Dayton, the average high-temperature slightly increases, from an agreeable 69.1°F (20.6°C) in May, to a moderately hot 77.2°F (25.1°C). Weather in June »

July is a hot summer month in Dayton, Washington, with average temperature ranging between max 86.5°F (30.3°C) and min 55.2°F (12.9°C). The warmest months are July and August, with an average high-temperature of 86.5°F (30.3°C). Weather in July »

The last month of the summer, August, is another hot month in Dayton, Washington, with average temperature ranging between max 86.5°F (30.3°C) and min 55°F (12.8°C). July and August, with an average high-temperature of 86.5°F (30.3°C), are the warmest months. Weather in August »

September, the first month of the autumn, in Dayton, is also a moderately hot month, with average temperature fluctuating between 76.8°F (24.9°C) and 47.5°F (8.6°C). In September, the average high-temperature drops, from a hot 86.5°F (30.3°C) in August, to a moderately hot 76.8°F (24.9°C). Weather in September »

October, like September, in Dayton, Washington, is another enjoyable autumn month, with average temperature varying between 38.7°F (3.7°C) and 64.2°F (17.9°C). In Dayton, the average high-temperature drops, from a moderately hot 76.8°F (24.9°C) in September, to an enjoyable 64.2°F (17.9°C). Weather in October »

The last month of the autumn, November, is also a frosty month in Dayton, Washington, with average temperature fluctuating between 33.1°F (0.6°C) and 48.7°F (9.3°C). In November, the average high-temperature plummets, from an enjoyable 64.2°F (17.9°C) in October, to a chilly 48.7°F (9.3°C). Weather in November »

December, the first month of the winter, in Dayton, is still a cold month, with average temperature ranging between max 40.5°F (4.7°C) and min 27°F (-2.8°C). In December, the average high-temperature slightly decreases, from a frosty 48.7°F (9.3°C) in November, to a cold 40.5°F (4.7°C). Weather in December »

What is the coldest month in Dayton?

January is the coldest month in Dayton, with an average high-temperature of 40.3°F (4.6°C) and an average low-temperature of 26.2°F (-3.2°C).

How many days does it rain in Dayton?

Throughout the year, in Dayton, Washington, there are 121.9 rainfall days, and 19.3" (491.1mm) of precipitation is accumulated.

When does it snow in Dayton?

Months with snowfall in Dayton are January through March, October through December.

How many days does it snow in Dayton?

Throughout the year, in Dayton, Washington, there are 10.4 snowfall days, and 17.8" (451.9mm) of snow is accumulated.

What is the snowiest month in Dayton?

Months with the most snowfall are January and December, with an average 6.1" (154.9mm) of accumulated snow.

When are the longest days in Dayton?

June has the longest days of the year, with an average of 15.7h of daylight.

What is the warmest month in Dayton?

July and August, with an average high-temperature of 86.5°F (30.3°C), are warmest months in Dayton.

What is the driest month in Dayton?

The month with the least rainfall is July when the rain falls for 4.2 days and typically collects 0.5" (11.7mm) of precipitation.

What is the wettest month in Dayton?

November is the month with the most rainfall in Dayton. Rain falls for 15.9 days and accumulates 2.5" (64.3mm) of precipitation.

What is the month with the shortest days in Dayton?

With an average of 8.7h of daylight, December has the shortest days of the year.
Average temperature - Dayton, WA
Average rainfall - Dayton, WA
Average rainfall days - Dayton, WA

The month with the highest number of rainy days is November (15.9 days).
The month with the lowest number of rainy days is August (4.1 days).

Average snowfall - Dayton, WA

Months with the highest snowfall are January and December (6.1").
Months with the lowest snowfall are April, May, June, July, August and September (0").

Average snowfall days - Dayton, WA

The month with the highest number of snowfall days is January (3.4 days).
Months with the lowest number of snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight - Dayton, WA

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