Temperature
Cold by day, freezing at night.
38°Ftypical December high
Typical range
December climate
December in Alamosa
United States · North America
Cold weather is the main limitation.
Some tradeoffs
Daytime high
38°F
Lows around 13°F
Precipitation
4 days/mo
Sun
8.5 h/day
Air feel
Very dry
When to visit
Month-by-month fit
Best
Precipitation
Some precipitation is expected this month.
13%wet-day frequency
AmountWet-day chance
Sunshine
Plenty of sun this month.
8.7 hDecember sunshine
Heat & humidity by month
Humidity is rarely noticeable in the cool air.
Very dryDecember Heat feel
Easy airWarm airHot air
Hourly temperature pattern
In December, afternoons feel about 26° and nights feel near 8°.
FrigidFreezingVery coldColdCoolComfortableWarmNight hours
Clear sky
Mostly clear skies this month.
65%December Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in December.
4 mphDecember Calm
More detailIncludes daypart comfort
Typical December day
December late afternoons are around 34°F, easing to about 26°F in early evening.
Avg temp Typical range
Morning24°F
Rain6%
Cloud35%
Humid airLow
Sun intensityLow
Midday35°F
Rain6%
Cloud38%
Humid airLow
Sun intensityModerate
Best windowLate afternoon33°F
Rain6%
Cloud35%
Humid airLow
Sun intensityLow
Early evening26°F
Rain6%
Cloud34%
Humid airLow
Sun intensityMinimal
Data tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 37 | 10 | 0.6 | 4 | 9.0 | 62 |
| Feb | 42 | 16 | 0.6 | 4 | 9.9 | 57 |
| Mar | 52 | 25 | 0.8 | 5 | 11.0 | 49 |
| Apr | 60 | 31 | 1.1 | 6 | 11.8 | 43 |
| May | 69 | 39 | 1.2 | 7 | 13.1 | 41 |
| Jun | 80 | 48 | 0.7 | 6 | 13.5 | 37 |
| Jul | 84 | 53 | 1.2 | 9 | 13.1 | 49 |
| Aug | 81 | 52 | 1.2 | 8 | 12.3 | 52 |
| Sep | 75 | 45 | 1.0 | 5 | 11.5 | 49 |
| Oct | 63 | 34 | 0.9 | 4 | 10.3 | 49 |
| Nov | 49 | 24 | 0.5 | 3 | 9.4 | 50 |
| Dec | 38 | 13 | 0.6 | 4 | 8.7 | 59 |
Similar climates
Similar
Similar travel styleArcoUnited StatesSimilar travel styleAuroraUnited StatesSimilar travel styleArvadaUnited StatesSimilar travel styleAlturasUnited States
Want a side-by-side climate view? Compare Alamosa with Arco.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jul 31, 2026
Data & methodology