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Weather & Climate
Costilla County, Colorado, United States
Overview
Climate data and monthly weather averages for Costilla County.
Key Metrics
Annual Avg
7°C
Summer Avg
18.6°C
Winter Avg
-4.2°C
Record High
34.3°C
Record Low
-27.3°C
Annual Precipitation
408.5 mm
Avg Humidity
54%
Summer Humidity
47%
Winter Humidity
67%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 12.3° | -4.6° | -25.3° | 25.1 | 69% | 97 | 49.6 |
| Feb | 15.5° | -3.3° | -24.5° | 26.6 | 65% | 117 | 49.1 |
| Mar | 20.8° | 1.4° | -19.5° | 32.2 | 56% | 162 | 51.2 |
| Apr | 24.1° | 5.4° | -10.8° | 38.7 | 50% | 191 | 58.4 |
| May | 32.6° | 10.9° | -7.7° | 35.6 | 46% | 224 | 53.2 |
| Jun | 33.9° | 17.5° | -1.1° | 22.2 | 39% | 233 | 57.7 |
| Jul | 34.3° | 20° | 6° | 60.8 | 49% | 214 | 34.6 |
| Aug | 32.4° | 18.4° | 4.4° | 49.9 | 52% | 198 | 33.6 |
| Sep | 31.1° | 14.2° | -6° | 36.9 | 50% | 170 | 48.9 |
| Oct | 26.9° | 7.2° | -11.5° | 27.6 | 51% | 139 | 48.4 |
| Nov | 20° | 1° | -20.4° | 22.8 | 56% | 99 | 47.3 |
| Dec | 13.9° | -4.6° | -27.3° | 30.1 | 68% | 85 | 51.7 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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