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

Monthly weather forecast and climate
Sunnyside, WA

January, like December, in Sunnyside, Washington, is a wintry winter month, with average temperature fluctuating between 38.8°F (3.8°C) and 23°F (-5°C). January is the coldest month, with an average high-temperature of 38.8°F (3.8°C) and an average low-temperature of 23°F (-5°C). Weather in January »
February, the last month of the winter, in Sunnyside, is a chilly month, with temperature in the range of an average high of 47.1°F (8.4°C) and an average low of 27°F (-2.8°C). In Sunnyside, the average high-temperature in February slightly increases, from a wintry 38.8°F (3.8°C) in January, to a frosty 47.1°F (8.4°C). Weather in February »

The first month of the spring, March, is a mild month in Sunnyside, Washington, with average temperature varying between 31.8°F (-0.1°C) and 58.1°F (14.5°C). In March, the average high-temperature increases, from a frosty 47.1°F (8.4°C) in February, to a moderate 58.1°F (14.5°C). Weather in March »

April is an enjoyable spring month in Sunnyside, Washington, with average temperature varying between 66.9°F (19.4°C) and 37.6°F (3.1°C). In April, the average high-temperature marginally rises, from a moderate 58.1°F (14.5°C) in March, to a comfortable 66.9°F (19.4°C). Weather in April »

The last month of the spring, May, is a warm month in Sunnyside, Washington, with average temperature ranging between max 75°F (23.9°C) and min 44.8°F (7.1°C). In May, the average high-temperature marginally rises, from an enjoyable 66.9°F (19.4°C) in April, to a warm 75°F (23.9°C). Weather in May »

June, the first month of the summer, in Sunnyside, is also a moderately hot month, with temperature in the range of an average low of 51.1°F (10.6°C) and an average high of 82.2°F (27.9°C). In Sunnyside, the average high-temperature marginally rises, from 75°F (23.9°C) in May, to a still warm 82.2°F (27.9°C). Weather in June »

July in Sunnyside, Washington, is a hot summer month, with temperature in the range of an average high of 90°F (32.2°C) and an average low of 54.7°F (12.6°C). The warmest month is July, with an average high-temperature of 90°F (32.2°C) and an average low-temperature of 54.7°F (12.6°C). Weather in July »

The last month of the summer, August, is another tropical month in Sunnyside, Washington, with average temperature fluctuating between 52.7°F (11.5°C) and 88.5°F (31.4°C). In August, the average high-temperature is practically the same as in July - a still tropical 88.5°F (31.4°C). Weather in August »

September, the first month of the autumn, in Sunnyside, is also a moderately hot month, with average temperature ranging between min 45.9°F (7.7°C) and max 79.5°F (26.4°C). In September, the average high-temperature drops, from a tropical 88.5°F (31.4°C) in August, to a warm 79.5°F (26.4°C). Weather in September »

October, like September, in Sunnyside, Washington, is another comfortable autumn month, with average temperature ranging between max 66.9°F (19.4°C) and min 37.2°F (2.9°C). In Sunnyside, the average high-temperature drops, from a warm 79.5°F (26.4°C) in September, to a comfortable 66.9°F (19.4°C). Weather in October »

The last month of the autumn, November, is another cool month in Sunnyside, Washington, with temperature in the range of an average high of 50.5°F (10.3°C) and an average low of 30°F (-1.1°C). In November, the average high-temperature significantly decreases, from a comfortable 66.9°F (19.4°C) in October, to a fresh 50.5°F (10.3°C). Weather in November »

December, the first month of the winter, in Sunnyside, is also a wintry month, with average temperature fluctuating between 39.9°F (4.4°C) and 25.3°F (-3.7°C). In December, the average high-temperature drops, from a fresh 50.5°F (10.3°C) in November, to a wintry 39.9°F (4.4°C). Weather in December »

What is the coldest month in Sunnyside?

The coldest month in Sunnyside is January, with an average high-temperature of 38.8°F (3.8°C) and an average low-temperature of 23°F (-5°C).

How many days does it rain in Sunnyside?

Throughout the year, there are 58 rainfall days, and 6.8" (172.4mm) of precipitation is accumulated.

When does it snow in Sunnyside?

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

How much does it snow in Sunnyside?

Throughout the year, in Sunnyside, Washington, 12.3" (312.4mm) of snow is accumulated.

What is the snowiest month in Sunnyside?

The month with the most snowfall in Sunnyside is January when 4.5" (114.3mm) of snow is typically aggregated.

When are the longest days in Sunnyside?

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

What is the warmest month in Sunnyside?

With an average high-temperature of 90°F (32.2°C) and an average low-temperature of 54.7°F (12.6°C), July is the warmest month in Sunnyside, Washington.

What is the driest month in Sunnyside?

The month with the least rainfall is July when the rain falls for 2 days and typically collects 0.2" (4.6mm) of precipitation.

What is the rainiest month in Sunnyside?

The month with the most rainfall in Sunnyside, Washington, is December when the rain falls for 8 days and typically aggregates up to 0.9" (23.6mm) of precipitation.

What is the month with the shortest days in Sunnyside?

December has the shortest days of the year in Sunnyside, with an average of 8.7h of daylight.
Average rainfall - Sunnyside, WA

Wettest months (with the highest rainfall) are January, November and December (0.9").
The driest month (with the lowest rainfall) is July (0.2").

Average rainfall days - Sunnyside, WA
Average snowfall - Sunnyside, WA
Average daylight - Sunnyside, WA

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