Rule
Dark Skies
Durango - Dark Skies - Rocky Mountains
Pagosa Springs, Colorado, United States
Moonless nights with crystal-clear skies for deep-sky photography
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
Times shown in America/Denver
Next opportunity
Pristine Dark Skies (pristine)
Durango
Sat, Feb 21 · 02:00–04:00 · 2h window
Low confidence
39%
🌛Moon Altitude-40.6--37.8°
☁️Total Cloud Coverage0%
Pristine Dark Skies (pristine)
Durango
Sun, Feb 22 · 02:00–03:00
🌛Moon Altitude:-27.7°
Medium
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72-hour requirements breakdown
What passed or failed, hour by hour0matching hours in the next 95 hours
OR logic: one branch per group is enough
Meets requirement
Misses requirement
Time America/Denver | Astronomical Night Any | Total Cloud Coverage ≤ 20.0% | Visibility ≥ 12000.0m | Precipitation Chance ≤ 10.0% | Moon Illumination OR1·B1≤ 35.0% | Moon Altitude OR1·B2≤ 10.0° |
|---|---|---|---|---|---|---|
| Mon, Feb 16 | ||||||
| 06:00 | ✓ | 100% | 24134m | 0% | 1.2% | -6.8° |
| 07:00 | ✓ | 100% | 24135m | 0% | 1.2% | 4.1° |
| 08:00 | ✓ | 100% | 24135m | 0% | 1.2% | 14° |
| 09:00 | ✓ | 100% | 24135m | 13% | 1.2% | 23° |
| 10:00 | ✓ | 100% | 24134m | 26% | 1.2% | 30° |
| 11:00 | ✓ | 100% | 24135m | 39% | 1.2% | 35° |
| 12:00 | ✓ | 100% | 24135m | 29% | 1.2% | 36° |
| 13:00 | ✓ | 100% | 24134m | 19% | 1.2% | 34° |
| 14:00 | ✓ | 100% | 24135m | 8.3% | 1.2% | 29° |
| 15:00 | ✓ | 100% | 24134m | 33% | 1.2% | 22° |
| 16:00 | ✓ | 100% | 24134m | 58% | 1.2% | 12° |
| 17:00 | ✓ | 100% | 24134m | 83% | 0% | 2.2° |
| 18:00 | ✓ | 97% | 24134m | 86% | 0% | -8.7° |
| 19:00 | ✓ | 100% | 24134m | 92% | 0% | -20° |
| 20:00 | ✓ | 100% | 24135m | 99% | 0% | -31° |
| 21:00 | ✓ | 100% | 24134m | 99% | 0% | -43° |
| 22:00 | ✓ | 100% | 24134m | 100% | 0% | -53° |
| 23:00 | ✓ | 100% | 24134m | 100% | 0% | -62° |
| Tue, Feb 17 | ||||||
| 24:00 | ✓ | 100% | 24134m | 100% | 0% | -66° |
| 01:00 | ✓ | 99% | 24134m | 100% | 0% | -64° |
| 02:00 | ✓ | 100% | 24134m | 100% | 0% | -57° |
| 03:00 | ✓ | 100% | 17621m | 100% | 0% | -47° |
| 04:00 | ✓ | 100% | 14362m | 100% | 0% | -36° |
| 05:00 | ✓ | 100% | 116m | 100% | 0% | -24° |
| 06:00 | ✓ | 100% | 239m | 98% | 0% | -12° |
| 07:00 | ✓ | 100% | 76m | 97% | 0% | -0.98° |
| 08:00 | ✓ | 100% | 10160m | 95% | 0% | 10° |
| 09:00 | ✓ | 100% | 8176m | 97% | 0% | 20° |
| 10:00 | ✓ | 100% | 183m | 98% | 0% | 29° |
| 11:00 | ✓ | 98% | 1838m | 100% | 0% | 37° |
| 12:00 | ✓ | 100% | 1784m | 100% | 0% | 41° |
| 13:00 | ✓ | 94% | 6399m | 100% | 0% | 42° |
| 14:00 | ✓ | 44% | 23678m | 100% | 0% | 39° |
| 15:00 | ✓ | 93% | 24000m | 100% | 0% | 32° |
| 16:00 | ✓ | 97% | 21622m | 100% | 0% | 24° |
| 17:00 | ✓ | 91% | 24135m | 100% | 1.2% | 14° |
| 18:00 | ✓ | 100% | 21740m | 100% | 1.2% | 3.5° |
| 19:00 | ✓ | 100% | 3805m | 100% | 1.2% | -7.7° |
| 20:00 | ✓ | 100% | 1474m | 100% | 1.2% | -19° |
| 21:00 | ✓ | 100% | 1782m | 100% | 1.2% | -30° |
| 22:00 | ✓ | 100% | 1119m | 100% | 1.2% | -41° |
| 23:00 | ✓ | 96% | 1233m | 100% | 1.2% | -51° |
| Wed, Feb 18 | ||||||
| 24:00 | ✓ | 100% | 5114m | 100% | 1.2% | -58° |
| 01:00 | ✓ | 100% | 3874m | 100% | 1.2% | -61° |
| 02:00 | ✓ | 100% | 381m | 100% | 1.2% | -57° |
| 03:00 | ✓ | 100% | 137m | 100% | 1.2% | -50° |
| 04:00 | ✓ | 100% | 177m | 100% | 1.2% | -40° |
| 05:00 | ✓ | 100% | 114m | 100% | 1.2% | -29° |
| 06:00 | ✓ | 100% | 102m | 100% | 1.2% | -18° |
| 07:00 | ✓ | 100% | 117m | 100% | 1.2% | -6° |
| 08:00 | ✓ | 100% | 95m | 100% | 1.2% | 5.6° |
| 09:00 | ✓ | 100% | 141m | 100% | 1.2% | 17° |
| 10:00 | ✓ | 100% | 241m | 100% | 1.2% | 27° |
| 11:00 | ✓ | 100% | 1392m | 100% | 1.2% | 37° |
| 12:00 | ✓ | 100% | 1423m | 97% | 1.2% | 44° |
| 13:00 | ✓ | 100% | 640m | 93% | 1.2% | 48° |
| 14:00 | ✓ | 100% | 247m | 90% | 1.2% | 48° |
| 15:00 | ✓ | 100% | 1366m | 89% | 1.2% | 43° |
| 16:00 | ✓ | 100% | 487m | 88% | 1.2% | 36° |
| 17:00 | ✓ | 100% | 90m | 87% | 4.5% | 26° |
| 18:00 | ✓ | 100% | 480m | 65% | 4.5% | 16° |
| 19:00 | ✓ | 100% | 9634m | 44% | 4.5% | 4.8° |
| 20:00 | ✓ | 100% | 3242m | 22% | 4.5% | -6.6° |
| 21:00 | ✓ | 100% | 4991m | 23% | 4.5% | -18° |
| 22:00 | ✓ | 98% | 21627m | 25% | 4.5% | -29° |
| 23:00 | ✓ | 8.6% | 24134m | 26% | 4.5% | -39° |
| Thu, Feb 19 | ||||||
| 24:00 | ✓ | 36% | 16591m | 25% | 4.5% | -47° |
| 01:00 | ✓ | 48% | 16484m | 23% | 4.5% | -53° |
| 02:00 | ✓ | 39% | 16523m | 22% | 4.5% | -54° |
| 03:00 | ✓ | 16% | 19182m | 31% | 4.5% | -50° |
| 04:00 | ✓ | 5% | 24135m | 41% | 4.5% | -43° |
| 05:00 | ✓ | 83% | 23967m | 50% | 4.5% | -33° |
| 06:00 | ✓ | 47% | 24134m | 46% | 4.5% | -22° |
| 07:00 | ✓ | 33% | 24134m | 42% | 4.5% | -11° |
| 08:00 | ✓ | 79% | 24134m | 39% | 4.5% | 0.83° |
| 09:00 | ✓ | 34% | 24135m | 53% | 4.5% | 13° |
| 10:00 | ✓ | 18% | 24134m | 68% | 4.5% | 24° |
| 11:00 | ✓ | 18% | 24135m | 83% | 4.5% | 35° |
| 12:00 | ✓ | 45% | 19608m | 68% | 4.5% | 44° |
| 13:00 | ✓ | 72% | 15081m | 54% | 4.5% | 51° |
| 14:00 | ✓ | 98% | 10554m | 39% | 4.5% | 55° |
| 15:00 | ✓ | 95% | 7625m | 39% | 4.5% | 53° |
| 16:00 | ✓ | 92% | 4695m | 39% | 4.5% | 47° |
| 17:00 | ✓ | 89% | 1766m | 39% | 10% | 39° |
| 18:00 | ✓ | 93% | 1218m | 48% | 10% | 29° |
| 19:00 | ✓ | 96% | 670m | 57% | 10% | 18° |
| 20:00 | ✓ | 100% | 122m | 65% | 10% | 6.2° |
| 21:00 | ✓ | 100% | 121m | 73% | 10% | -5.2° |
| 22:00 | ✓ | 100% | 120m | 80% | 10% | -16° |
| 23:00 | ✓ | 100% | 119m | 88% | 10% | -27° |
| Fri, Feb 20 | ||||||
| 24:00 | ✓ | 100% | 109m | 88% | 10% | -36° |
| 01:00 | ✓ | 100% | 99m | 88% | 10% | -43° |
| 02:00 | ✓ | 100% | 89m | 88% | 10% | -47° |
| 03:00 | ✓ | 100% | 94m | 89% | 10% | -47° |
| 04:00 | ✓ | 100% | 98m | 90% | 10% | -42° |
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity). For OR groups, only one branch is required, so some OR-branch predicates can be ✕ even in a matching hour.
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