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

Monthly weather forecast and climate
Hillsboro, OR

The red tree colors of the fall along a road and amid trees in this tranquil neighborhood in Hillsboro, Oregon, and even better in the sun rays
The red tree colors of the fall along a road and amid trees in this tranquil neighborhood in Hillsboro, Oregon, and even better in the sun rays
January, like December, is a frosty winter month in Hillsboro, Oregon, with average temperature varying between 32.7°F (0.4°C) and 45°F (7.2°C). January is the coldest month, with an average high-temperature of 45°F (7.2°C) and an average low-temperature of 32.7°F (0.4°C). Weather in January »
The last month of the winter, February, is a fresh month in Hillsboro, Oregon, with average temperature varying between 50.5°F (10.3°C) and 34.5°F (1.4°C). In Hillsboro, Oregon, the average high-temperature in February marginally rises, from a chilly 45°F (7.2°C) in January, to a cool 50.5°F (10.3°C). Weather in February »

The first month of the spring, March, is a moderate month in Hillsboro, Oregon, with temperature in the range of an average high of 55.6°F (13.1°C) and an average low of 36.9°F (2.7°C). In March, the average high-temperature is relatively the same as in February - a mild 55.6°F (13.1°C). Weather in March »

April is an enjoyable spring month in Hillsboro, Oregon, with average temperature varying between 39.7°F (4.3°C) and 62.1°F (16.7°C). In April, the average high-temperature slightly increases, from a mild 55.6°F (13.1°C) in March, to a comfortable 62.1°F (16.7°C). Weather in April »

May, the last month of the spring, in Hillsboro, is a pleasant month, with average temperature ranging between min 44.1°F (6.7°C) and max 68.7°F (20.4°C). In May, the average high-temperature marginally rises, from an enjoyable 62.1°F (16.7°C) in April, to a pleasant 68.7°F (20.4°C). Weather in May »

June, the first month of the summer, in Hillsboro, is a moderately hot month, with temperature in the range of an average high of 73.9°F (23.3°C) and an average low of 48.9°F (9.4°C). In June, the average high-temperature is essentially the same as in May - a moderately hot 73.9°F (23.3°C). Weather in June »

July, the same as June, is a moderately hot summer month in Hillsboro, Oregon, with average temperature fluctuating between 81°F (27.2°C) and 52°F (11.1°C). The warmest months are July and August, with an average high-temperature of 81°F (27.2°C). Weather in July »

The last month of the summer, August, is also a moderately hot month in Hillsboro, Oregon, with average temperature varying between 51.3°F (10.7°C) and 81°F (27.2°C). July and August, with an average high-temperature of 81°F (27.2°C), are the warmest months. Weather in August »

September, the first month of the autumn, in Hillsboro, is still a warm month, with average temperature varying between 75.9°F (24.4°C) and 47.5°F (8.6°C). In September, the average high-temperature is essentially the same as in August - a still warm 75.9°F (24.4°C). Weather in September »

October, the same as September, is another enjoyable autumn month in Hillsboro, Oregon, with temperature in the range of an average low of 41.5°F (5.3°C) and an average high of 64.2°F (17.9°C). In October, the average high-temperature decreases, from a warm 75.9°F (24.4°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 fresh month in Hillsboro, Oregon, with average temperature fluctuating between 52.3°F (11.3°C) and 37°F (2.8°C). In Hillsboro, the average high-temperature drops, from a comfortable 64.2°F (17.9°C) in October, to a cool 52.3°F (11.3°C). Weather in November »

The first month of the winter, December, is also a frosty month in Hillsboro, Oregon, with average temperature ranging between min 34.2°F (1.2°C) and max 46.4°F (8°C). In Hillsboro, the average high-temperature marginally drops, from a cool 52.3°F (11.3°C) in November, to a frosty 46.4°F (8°C). Weather in December »

What is the coldest month in Hillsboro?

With an average high-temperature of 45°F (7.2°C) and an average low-temperature of 32.7°F (0.4°C), January is the coldest month in Hillsboro.

How much does it rain in Hillsboro?

In Hillsboro, Oregon, during the entire year, the rain falls for 151 days and collects up to 37.7" (958.6mm) of precipitation.

When are the longest days in Hillsboro?

The month with the longest days in Hillsboro is June, with an average of 15.6h of daylight.

What is the warmest month in Hillsboro?

Warmest months are July and August, with an average high-temperature of 81°F (27.2°C).

What is the driest month in Hillsboro?

July is the month with the least rainfall in Hillsboro, Oregon. Rain falls for 3 days and accumulates 0.5" (11.7mm) of precipitation.

What is the rainiest month in Hillsboro?

December is the month with the most rainfall in Hillsboro, Oregon. Rain falls for 20 days and accumulates 6.8" (172.7mm) of precipitation.

What is the month with the shortest days in Hillsboro?

The month with the shortest days in Hillsboro is December, with an average of 8.8h of daylight.
Average rainfall - Hillsboro, OR
Average rainfall days - Hillsboro, OR

Months with the highest number of rainy days are January and December (20 days).
The month with the lowest number of rainy days is July (3 days).

Average daylight - Hillsboro, OR

The month with the longest days is June (Average daylight: 15.6h).
The month with shortest days is December (Average daylight: 8.8h).