Weather in Richmond in December

United States · 20-year averages, December

The month to avoid. December is the month most people should skip in Richmond. Highs sit at 5.8 °C and the day is short; this is an indoors-with-excursions month, not an outdoors-all-day one.

December ranks 12 of 12 — near the bottom of Richmond's year. July is the month that works, and the swing between the two is 72 points, which is a different holiday rather than a slightly better one.

Rain on 20 of the month's 31 days, 6 of them heavy. At that frequency a wet-weather backup is not a contingency, it is the itinerary — book the indoor things first and treat the clear days as the bonus. Layers, and a genuinely waterproof outer — at 5.8 °C the difference between a good day and a miserable one is entirely down to what you are wearing.

What the averages hide

Averages flatten a month, and this one hides a few things: 5 nights fall below freezing; the day barely swings — 3 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest December day reached 13.2 °C and the coldest night fell to -9.4 °C, and the wettest single day dropped 49 mm — roughly 28% of the month's rain in one day.

December is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest December on record still delivered 275 mm against 78 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 177 mm average is a reasonable planning figure, not a promise.

Wind is light at 8.8 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 87%, which at 5.8 °C means damp rather than muggy — the kind of cold that gets into a coat and stays there.

How December sits in the year

Temperatures hold steady either side: 8.6 °C in November, 5.8 here, 6.1 in January. Nothing about the timing within the month matters much.

Daylight in December

December sits at the dark end of Richmond's year — 9.6 hours of daylight against 14.7 at midsummer, holding steady all month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.

An inland climate

Despite being inland, the year stays fairly even: 18.7 °C between the year's warmest afternoons and coldest nights.

How busy it gets

Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

December in Richmond versus nearby

If Richmond is one option among several, the nearby comparison is worth making. Virginia Beach is a better bet in December — 4.8 °C warmer, 11 days less rain. Washington is a better bet in December — within a degree on temperature, 11 days less rain.

So: December is a compromise. July is 72 points better and is what Richmond is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Richmond

MonthHigh °CLow °CRain daysRain mmHumidity %Daylight hScore
January6.12.9 20194889.821
February6.82.9 161038410.828
March8.84.4 201428311.929
April11.76.5 15878013.147
May15.79.8 12607714.266
June18.212.2 11467714.775
July21.414.7 5267514.592
August21.515.1 5337513.791
September18.212.7 11707912.574
October138.9 171408411.343
November8.65.3 202068710.229
December5.82.8 20177879.620

See all twelve months in Richmond, or where else to go in December.

Planning the rest of the trip

Built and maintained by Amit Sharma, Auckland, New Zealand. I build these sites so the answer is free and the data is public.

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