West Yellowstone, Montana, USA — Moonrise, Moonset, and Moon Phases, December 2025

Moonrise, Moonset, and Phase Calendar for West Yellowstone, December 2025

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2025	Moonrise/Moonset						Meridian Passing
Dec	Moonrise		Moonset		Moonrise		Time		Distance (mi)	Illumination
1	-		3:31 am	↑ (285°)	2:20 pm	↑ (71°)	9:28 pm	(60.0°)	224,821	88.6%
2	-		4:54 am	↑ (294°)	2:47 pm	↑ (62°)	10:25 pm	(65.9°)	222,735	95.2%
3	-		6:20 am	↑ (302°)	3:23 pm	↑ (55°)	11:27 pm	(70.4°)	221,831	99.1%
4	-		7:46 am	↑ (309°)	4:10 pm	↑ (50°)	Moon does not pass the meridian on this day.
5	-		9:04 am	↑ (311°)	5:12 pm	↑ (49°)	12:34 am	(72.9°)	222,257	99.6%
6	-		10:07 am	↑ (310°)	6:26 pm	↑ (51°)	1:42 am	(73.1°)	223,997	96.9%
7	-		10:54 am	↑ (306°)	7:46 pm	↑ (56°)	2:46 am	(71.0°)	226,848	91.3%
8	-		11:29 am	↑ (300°)	9:06 pm	↑ (63°)	3:46 am	(67.1°)	230,492	83.4%
9	-		11:56 am	↑ (292°)	10:21 pm	↑ (72°)	4:39 am	(62.0°)	234,528	74.0%
10	-		12:17 pm	↑ (284°)	11:32 pm	↑ (80°)	5:26 am	(56.1°)	238,618	63.8%
11	-		12:35 pm	↑ (275°)	-		6:10 am	(50.0°)	242,438	53.4%
12	12:39 am	↑ (89°)	12:52 pm	↑ (267°)	-		6:52 am	(43.9°)	245,774	43.1%
13	1:44 am	↑ (98°)	1:09 pm	↑ (259°)	-		7:32 am	(37.9°)	248,474	33.4%
14	2:49 am	↑ (106°)	1:27 pm	↑ (251°)	-		8:13 am	(32.3°)	250,477	24.5%
15	3:54 am	↑ (113°)	1:47 pm	↑ (244°)	-		8:55 am	(27.3°)	251,768	16.7%
16	5:00 am	↑ (120°)	2:11 pm	↑ (238°)	-		9:39 am	(22.9°)	252,393	10.1%
17	6:05 am	↑ (126°)	2:41 pm	↑ (233°)	-		10:26 am	(19.5°)	252,421	5.1%
18	7:09 am	↑ (130°)	3:19 pm	↑ (229°)	-		11:16 am	(17.3°)	251,937	1.8%
19	8:07 am	↑ (132°)	4:07 pm	↑ (228°)	-		12:07 pm	(16.3°)	251,024	0.3%
20	8:58 am	↑ (131°)	5:04 pm	↑ (229°)	-		1:00 pm	(16.8°)	249,748	0.7%
21	9:40 am	↑ (129°)	6:08 pm	↑ (233°)	-		1:51 pm	(18.7°)	248,158	3.1%
22	10:14 am	↑ (124°)	7:17 pm	↑ (238°)	-		2:41 pm	(22.0°)	246,275	7.6%
23	10:41 am	↑ (117°)	8:27 pm	↑ (245°)	-		3:29 pm	(26.4°)	244,110	13.9%
24	11:03 am	↑ (110°)	9:37 pm	↑ (253°)	-		4:15 pm	(31.7°)	241,666	21.8%
25	11:23 am	↑ (102°)	10:48 pm	↑ (262°)	-		5:00 pm	(37.8°)	238,963	31.3%
26	11:42 am	↑ (93°)	11:59 pm	↑ (272°)	-		5:44 pm	(44.2°)	236,054	41.8%
27	12:00 pm	↑ (84°)	-		-		6:29 pm	(50.9°)	233,046	53.0%
28	-		1:13 am	↑ (281°)	12:21 pm	↑ (75°)	7:17 pm	(57.5°)	230,110	64.4%
29	-		2:30 am	↑ (290°)	12:45 pm	↑ (66°)	8:10 pm	(63.5°)	227,468	75.4%
30	-		3:52 am	↑ (299°)	1:15 pm	↑ (58°)	9:07 pm	(68.5°)	225,392	85.1%
31	-		5:15 am	↑ (306°)	1:55 pm	↑ (52°)	10:10 pm	(72.0°)	224,157	92.8%
* All times are local time for West Yellowstone. They take into account refraction. Dates are based on the Gregorian calendar. Illumination is calculated at lunar noon.

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