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

Monthly weather forecast and climate
Prosser, WA

January, the same as December, is a wintry winter month in Prosser, Washington, with temperature in the range of an average low of 25.2°F (-3.8°C) and an average high of 41°F (5°C). With an average high-temperature of 41°F (5°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 Prosser, is a frosty month, with average temperature fluctuating between 28.9°F (-1.7°C) and 48°F (8.9°C). In Prosser, the average high-temperature marginally rises, from a wintry 41°F (5°C) in January, to a frosty 48°F (8.9°C). Weather in February »

The first month of the spring, March, is a moderate month in Prosser, Washington, with average temperature ranging between min 33.8°F (1°C) and max 58.1°F (14.5°C). In March, the average high-temperature rises, from a frosty 48°F (8.9°C) in February, to a mild 58.1°F (14.5°C). Weather in March »

April is a comfortable spring month in Prosser, Washington, with average temperature ranging between max 66.4°F (19.1°C) and min 38.8°F (3.8°C). In Prosser, the average high-temperature slightly increases, from a mild 58.1°F (14.5°C) in March, to a comfortable 66.4°F (19.1°C). Weather in April »

The last month of the spring, May, is a moderately hot month in Prosser, Washington, with average temperature varying between 74.5°F (23.6°C) and 45.3°F (7.4°C). In Prosser, Washington, the average high-temperature marginally rises, from an enjoyable 66.4°F (19.1°C) in April, to a moderately hot 74.5°F (23.6°C). Weather in May »

The first month of the summer, June, is still a warm month in Prosser, Washington, with average temperature ranging between min 51.1°F (10.6°C) and max 81.9°F (27.7°C). In Prosser, Washington, the average high-temperature in June marginally rises, from 74.5°F (23.6°C) in May, to a still warm 81.9°F (27.7°C). Weather in June »

July is a hot summer month in Prosser, Washington, with average temperature fluctuating between 54.9°F (12.7°C) and 89.2°F (31.8°C). In Prosser, the average high-temperature slightly increases, from a moderately hot 81.9°F (27.7°C) in June, to a tropical 89.2°F (31.8°C). Weather in July »

August, the last month of the summer, in Prosser, is also a hot month, with temperature in the range of an average low of 54.3°F (12.4°C) and an average high of 89.4°F (31.9°C). The warmest month is August, with an average high-temperature of 89.4°F (31.9°C) and an average low-temperature of 54.3°F (12.4°C). Weather in August »

September, the first month of the autumn, in Prosser, is still a warm month, with average temperature fluctuating between 47.1°F (8.4°C) and 80.4°F (26.9°C). In September, the average high-temperature decreases, from a tropical 89.4°F (31.9°C) in August, to a moderately hot 80.4°F (26.9°C). Weather in September »

October, the same as September, is another comfortable autumn month in Prosser, Washington, with average temperature fluctuating between 38.5°F (3.6°C) and 67.8°F (19.9°C). In October, the average high-temperature decreases, from a moderately hot 80.4°F (26.9°C) in September, to a comfortable 67.8°F (19.9°C). Weather in October »

The last month of the autumn, November, is another cool month in Prosser, Washington, with average temperature fluctuating between 31.6°F (-0.2°C) and 51.3°F (10.7°C). In Prosser, Washington, the average high-temperature in November significantly decreases, from an enjoyable 67.8°F (19.9°C) in October, to a fresh 51.3°F (10.7°C). Weather in November »

December, the first month of the winter, in Prosser, is also a wintry month, with average temperature varying between 41.4°F (5.2°C) and 25.9°F (-3.4°C). In Prosser, the average high-temperature in December drops, from a fresh 51.3°F (10.7°C) in November, to a cold 41.4°F (5.2°C). Weather in December »

What is the coldest month in Prosser?

The coldest month in Prosser, Washington, is January, with an average high-temperature of 41°F (5°C) and an average low-temperature of 25.2°F (-3.8°C).

How much does it rain in Prosser?

Throughout the year, 8.1" (206.1mm) of rain is accumulated.

When are the longest days in Prosser?

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

What is the driest month in Prosser?

July is the month with the least rainfall in Prosser, Washington, with 0.2" (6.1mm) of accumulated precipitation.

What is the warmest month in Prosser?

The warmest month in Prosser, Washington, is August, with an average high-temperature of 89.4°F (31.9°C) and an average low-temperature of 54.3°F (12.4°C).

What is the rainiest month in Prosser?

December is the month with the most rainfall in Prosser, with 1.2" (30mm) of accumulated precipitation.

What is the month with the shortest days in Prosser?

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

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