Boulder in December
okbusy · worth considering
The year in Boulder
Tap a month for its page
- JanJBoulder in January: avoid
- FebFBoulder in February: avoid
- MarMBoulder in March: good
- AprABoulder in April: good
- MayMBoulder in May: sweet spot
- JunJBoulder in June: sweet spot
- JulJBoulder in July: good, busy
- AugABoulder in August: sweet spot, busy
- SepSBoulder in September: good, busy
- OctOBoulder in October: good
- NovNBoulder in November: ok
- DecDBoulder in December: ok, busy
- Sweet spot
- Good
- OK
- Avoid
- Busy
Plan this trip
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Flights from
Flights
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Where are you flying from? Choose your city for its flights and fares.
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Where to stay
Book direct
Luxury
Things to do
Car hire
Rent direct
Travel insurance
Check whether your bank card or home insurance already covers this trip.
If the trip needs a visa, the travel agent or visa centre usually sells the cover it asks for.
Mobile data (eSIM)
Your own plan's EU roaming may already cover this.
Renting a pocket Wi-Fi is the other common way to stay connected.
These are sites people in book with. Each opens in a new tab, on the site's own pages.
The numbers
| Daily high | 7°C |
|---|---|
| Nightly low | -5°C |
| Feels like, afternoon | 2°C |
| Rainy days, 1 mm or more | 3 · 20 mm |
| Humidity | 52% |
| Sunshine | 7.7 h/day |
| Daylight | 9.4 h/day |
| Hiking | 9 of 31 days dry and 10–27 °C |
| Crowds | 56 / 100, higher is quieter |
Ten-year averages for this calendar month. A rainy day is one with at least 1 mm of rain, as a weather station counts it. The model these figures come from drizzles more than a rain gauge, the more so the warmer the month, so its days count from 2 mm, rising to 5 mm in the hottest.
Weather read at Pearl Street, downtown, 19 km from the airport (BJC): ten years of ERA5 and ERA5-Land reanalysis, through Open-Meteo's open data.
How busy it gets
Public holidays in December
Holidays crowd a place out and push fares up around them; they count toward the crowd score above.
Boulder in pictures
i
Tyler Cipriani, CC BY-SA 4.0, via Wikimedia Commons
i
Roger W, CC BY-SA 2.0, via Wikimedia Commons
i
David Shankbone, CC BY 3.0, via Wikimedia Commons
What to pack
- A proper coat, hat and gloves: nights average -5°C.
Each line is a threshold over the ten-year figures above, not advice from anywhere else.
Before you go
Type A and B plugs at 120 V. Drives on the right. The currency is the United states dollar. No UK Foreign Office advice against travel. Global Affairs Canada: Exercise normal security precautions. Everything for United States: cost of living, languages, emergency numbers and health.
On arrival in Boulder: the apps, paying, getting around, tipping and the emergency numbers.
December elsewhere
In December from
The other months at Boulder
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