Fairfax Weather in January
During January, Fairfax experiences moderate daytime temperatures of 14°C (57°F) and cooler nights around 6°C (43°F). As part of the winter season, expect quite a bit of rainfall. Around 142 mm (5.6 in) is typical.
Rainfall in Fairfax in January
Historically, January sees about 10 days of rain, with a monthly average of 142 mm (5.6 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Fairfax in January
In January, expect moderate temperatures in Fairfax, with highs of 14°C (57°F) and lows of 6°C (43°F) at night. January is part of the winter season. Even when the weather is stable, mornings and evenings can still feel distinctly cool. With overnight lows of 6°C (43°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Fairfax in January
The city usually sees around 186 hours of sunlight, indicating a moderately sunny period.For Fairfax itself, April, May, June, July, August, September and October generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Fairfax's climate page.
Fairfax Temperature in January
Min Temperature
6°C (43°F)
Max Temperature
14°C (57°F)
Chance of Rain
33%
Precipitation
142 mm (5.6 in)
Rainy days
10 days
Humidity
80% *
Sunshine
186 hours *
Percentage Sunshine
61% *
Best Places in the United States of America in January
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in January →
perfect weather
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What to Wear in Fairfax in January
The weather can swing between comfortable and chilly in January, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Fairfax in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Fairfax's climate page.
Temperature Rainfall Sunshine Humidity
See the full Fairfax climate overview or explore weather in the United States of America.
