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Has the climate in Alamosa changed?

Alamosa has warmed about 3.8°F since 2006.

About 1.9°F per decade, measured from Alamosa's official daily weather records, 2006–2025. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.

Is that a lot? Alamosa's climate has warmed faster than most other cities in United States.

What has actually changed

Each card compares the 1970s (the first ten years of the record) with recent years (the last ten) — the same span the headline and the chart use.

Freezing nights
4 fewer nights
1970s
229 / yr
Recent
225 / yr
Milder winters — fewer frosts
Average temperature
+2.7°F
1970s
41.4°F
Recent
44.0°F
A steady upward drift
Hot days above 90°F
3 more days
1970s
2 / yr
Recent
5 / yr
More days of serious heat
Rainy days
about the same
1970s
62 / yr
Recent
60 / yr
Rainfall pattern about the same

Alamosa's temperature, year by year

Average temperature for each year from 2006 to 2025.

38°40°42°44°46°2006: 41.1°F2007: 40.7°F2008: 39.8°F2009: 41.8°F2010: 42.7°F2011: 42.0°F2012: 43.3°F2013: 40.2°F2014: 44.5°F2015: 45.2°F2016: 44.1°F2017: 45.4°F2018: 44.6°F2019: 41.6°F2020: 44.5°F2021: 44.4°F2022: 43.1°F2023: 42.9°F2024: 44.3°F2025: 45.1°Flong-term trend2006201020202025
a warmer-than-average year a cooler-than-average year

Each bar is one year. Most recent years sit above the older ones. Some recent years still came in cool — warming is a slope, not a straight climb.

Methodology & sources

Temperature — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Alamosa 1E (NOAA GHCN station USC00050128), about 1 km from the city centre.

How we build these numbers →