Alamosa
United States · North America
Year-round range: 9°F to 82°F
September
Excellent conditions this month
Your monthly fit score
Comfort fit by month.
Climate details▼
Temperature
Average highs and lows.
September has comfortable temperatures — not too hot, not too cold.
Shaded band = typical daily swing (P10 of night lows to P90 of afternoon peaks) — spans wider than avg high/low lines because it captures day-to-day variation.
| = SepPrecipitation
Monthly precipitation, wet-day risk, and snow signal where relevant.
September has moderate rainfall — occasional showers but mostly manageable.
Sunshine
Average hours of bright sun per day.
September is one of the sunniest months — great for outdoor plans.
Air comfort by month
Humidity and heat feel by month.
Time-of-day patterns
Typical hourly rhythm for September.
Temperature by hour
Temperature by hour and month
Typical temperature through the day across the year (1996-2025 normals, local time). Shaded cells are nighttime.
In September, afternoons reach about 72° and nights settle near 46°.
▶Full month-by-month data
| Month | High °F | Low °F | Rain days | Rain (in) | Sun h/day | Humidity |
|---|---|---|---|---|---|---|
| Jan | 36°F | 9°F | 3 | 0.6in | 7.5h | 57.99999999999999% |
| Feb | 41°F | 15°F | 4 | 0.6in | 7.8h | 53.57142857142857% |
| Mar | 49°F | 23°F | 5 | 0.9in | 8.8h | 46.42857142857143% |
| Apr | 58°F | 28°F | 6 | 1.1in | 9.5h | 37.71428571428571% |
| May | 68°F | 36°F | 7 | 1.3in | 10.6h | 35.71428571428571% |
| Jun | 72°F | 54°F | 6 | 0.8in | 12.2h | 30.428571428571427% |
| Jul | 82°F | 51°F | 9 | 1.2in | 10.6h | 40.857142857142854% |
| Aug | 79°F | 50°F | 9 | 1.4in | 10.2h | 46.285714285714285% |
| Sep | 73°F | 43°F | 5 | 1.0in | 10.4h | 43.57142857142857% |
| Oct | 62°F | 33°F | 4 | 0.9in | 9.5h | 43.714285714285715% |
| Nov | 48°F | 23°F | 3 | 0.6in | 8.3h | 48.285714285714285% |
| Dec | 38°F | 13°F | 4 | 0.6in | 7.5h | 54.42857142857142% |