Moon · December 2026
Moon calendar for Billings, Montana, United States: December 2026
Daily moon phases, illumination, moonrise and moonset in Billings, Montana, United States for December 2026. Full moon: December 23, 2026. All times are shown in the local time of Billings, Montana, United States.
Full moonWednesday, December 23, 2026, 6:16 PM
New moonTuesday, December 8, 2026, 4:17 PM
| Day | Phase | Illumination | Moonrise | Moonset |
|---|---|---|---|---|
| 1 | Last Quarter | 45% | — | 1:28 PM |
| 2 | Waning Crescent | 34% | 12:26 AM | 1:36 PM |
| 3 | Waning Crescent | 25% | 1:43 AM | 1:48 PM |
| 4 | Waning Crescent | 16% | 2:57 AM | 2:16 PM |
| 5 | Waning Crescent | 9% | 4:16 AM | 2:28 PM |
| 6 | Waning Crescent | 5% | 5:29 AM | 3:11 PM |
| 7 | Waning Crescent | 1% | 6:22 AM | 3:39 PM |
| 8 | New Moon | 0% | 7:34 AM | 4:20 PM |
| 9 | New Moon | 1% | 8:21 AM | 5:21 PM |
| 10 | Waxing Crescent | 3% | 9:20 AM | 6:11 PM |
| 11 | Waxing Crescent | 7% | 9:44 AM | 7:22 PM |
| 12 | Waxing Crescent | 13% | 10:19 AM | 8:18 PM |
| 13 | Waxing Crescent | 19% | 10:31 AM | 9:32 PM |
| 14 | Waxing Crescent | 28% | 11:09 AM | 10:24 PM |
| 15 | Waxing Crescent | 37% | 11:32 AM | 11:37 PM |
| 16 | First Quarter | 47% | 11:39 AM | — |
| 17 | First Quarter | 57% | 11:55 AM | 12:37 AM |
| 18 | Waxing Gibbous | 68% | 12:19 PM | 2:00 AM |
| 19 | Waxing Gibbous | 78% | 12:28 PM | 3:27 AM |
| 20 | Waxing Gibbous | 86% | 1:10 PM | 4:28 AM |
| 21 | Waxing Gibbous | 93% | 1:39 PM | 5:55 AM |
| 22 | Waxing Gibbous | 98% | 2:21 PM | 7:27 AM |
| 23 | Full Moon | 100% | 3:33 PM | 8:24 AM |
| 24 | Full Moon | 99% | 4:33 PM | 9:32 AM |
| 25 | Waning Gibbous | 96% | 6:13 PM | 10:05 AM |
| 26 | Waning Gibbous | 90% | 7:36 PM | 10:27 AM |
| 27 | Waning Gibbous | 82% | 8:50 PM | 10:59 AM |
| 28 | Waning Gibbous | 72% | 10:18 PM | 11:30 AM |
| 29 | Waning Gibbous | 62% | 11:35 PM | 11:37 AM |
| 30 | Last Quarter | 51% | — | 11:55 AM |
| 31 | Last Quarter | 40% | 12:31 AM | 12:19 PM |
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Frequently asked questions
When is the full moon in December 2026 in Billings, Montana, United States?
The full moon peaks on Wednesday, December 23, 2026, 6:16 PM (local time).
When is the new moon in December 2026?
The new moon falls on Tuesday, December 8, 2026, 4:17 PM (local time) — the darkest nights of the month, best for stargazing.
Data: Meeus astronomical algorithms. How we calculate this
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