Thermopolis Weather in December
December in Thermopolis typically sees daytime highs of 1°C (34°F) and nighttime lows of -13°C (9°F). Expect some snow/rainfall during the month. It falls within the winter season.
Rainfall in Thermopolis in December
Looking at the last 30 years, the data shows about 7 days with snow/rain, averaging 19 mm (0.7 in) for the month. Rain days are few and the total is low, so this is a largely dry month. Any showers that do occur tend to be brief.
Temperature in Thermopolis in December
December in Thermopolis sees highs of 1°C (34°F) and lows of -13°C (9°F) overnight. December marks the winter season. Time outdoors is usually more comfortable with proper winter clothing and protection from wind. With overnight lows of -13°C (9°F), temperatures fall below freezing at night. An extra thick blanket can make a real difference if your accommodation runs cold. Typically, it's the chilliest month of the year. Ensure you're prepared by packing appropriate winter gear.If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Thermopolis. 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 Thermopolis's climate page.
Thermopolis Temperature in December
Min Temperature
-13°C (9°F)
Max Temperature
1°C (34°F)
Chance of Rain
23%
Precipitation
19 mm (0.7 in)
Rainy days
7 days
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 →
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What to Wear in Thermopolis in December
We recommend to layer up for chilly conditions in Thermopolis in December. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. Almost no rain is expected, so no need to bring rain gear.What To Do in Thermopolis 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 Thermopolis's climate page.
See the full Thermopolis climate overview or explore weather in the United States of America.
