Longmont Weather in December
During December, Longmont experiences low daytime temperatures of 6°C (43°F) and cooler nights around -10°C (14°F). As part of the winter season, some snow/rainfall is to be expected.
Rainfall in Longmont in December
Based on our climate data of the past 30 years, about 5 days of snow/rain are anticipated, with 23 mm (0.9 in) on average. When rain does fall, showers tend to be light and brief. Most days will be dry.
Temperature in Longmont in December
December in Longmont brings low temperatures, with highs of 6°C (43°F) and nights around -10°C (14°F). During December, you'll experience the winter season. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. With lows of -10°C (14°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated. Expect the coldest temperatures of the year this month. Make sure you have enough winter clothing to stay warm.
Sunshine in Longmont in December
Enjoy a sunny month with about 195 hours of sunshine, making it one of the brighter months of the year despite the cool conditions.If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Longmont. Our weather planner can help you explore destinations with more pleasant weather conditions.
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 Longmont's climate page.
Longmont Temperature in December
Min Temperature
-10°C (14°F)
Max Temperature
6°C (43°F)
Chance of Rain
17%
Precipitation
23 mm (0.9 in)
Rainy days
5 days
Humidity
56% *
Sunshine
195 hours *
Percentage Sunshine
67% *
Best Places in the United States of America in December
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 December →
perfect weather
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What to Wear in Longmont in December
Dress warmly and in layers for your trip to Longmont in December. 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. Light rain is possible, so consider bringing a small umbrella or rain jacket. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Longmont in December
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 Longmont's climate page.
Temperature Rainfall Sunshine Humidity
See the full Longmont climate overview or explore weather in the United States of America.
