Hillsboro Weather in January

Hillsboro in January sees low temperatures, with highs around 8°C (46°F) and overnight lows of 2°C (36°F). Rainfall is fairly high at around 142 mm (5.6 in) on average, so pack waterproofs just in case.

Rainfall in Hillsboro in January

This month experiences about 20 days of rain according to historical data, averaging 142 mm (5.6 in). Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.

Temperature in Hillsboro in January

Daytime temperatures in Hillsboro reach 8°C (46°F) in January, dropping to 2°C (36°F) at night. The month of January belongs to the winter season. It stays cool throughout the day, so warm layers are a good idea from morning to evening. With lows around 2°C (36°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Hillsboro in January

With limited sunshine this month, there are about 86 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.

January in Hillsboro can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Hillsboro's climate page.

Hillsboro Temperature in January

Min Temperature 2°C (36°F)  

Max Temperature 8°C (46°F)  

Chance of Rain 67%  

Precipitation 142 mm (5.6 in)  

Rainy days 20 days  

Humidity 81% *  

Sunshine 86 hours *  

Percentage Sunshine *  

* Data from: Portland, the United States of America (31 KM, 19 Miles).

What to Wear in Hillsboro in January

Dress warmly and in layers for your trip to Hillsboro in January. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Expect heavy rainfall, so bring good rain protection and waterproof bags. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.

What To Do in Hillsboro in January

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

4/10

Cycling

4/10

Walking

4/10

Camping

3/10

Outdoor sports

4/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Hillsboro's climate page.

More climate data for Hillsboro

Temperature Rainfall Sunshine Humidity

See the full Hillsboro climate overview or explore weather in the United States of America.