Riverton, Wyoming, USA — Moonrise, Moonset, and Moon Phases, December 2025

Moonrise, Moonset, and Phase Calendar for Riverton, December 2025

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2025	Moonrise/Moonset						Meridian Passing
Dec	Moonrise		Moonset		Moonrise		Time		Distance (mi)	Illumination
1	-		3:18 am	↑ (284°)	2:12 pm	↑ (72°)	9:17 pm	(61.6°)	224,841	88.5%
2	-		4:38 am	↑ (293°)	2:41 pm	↑ (63°)	10:14 pm	(67.5°)	222,746	95.2%
3	-		6:03 am	↑ (301°)	3:18 pm	↑ (56°)	11:16 pm	(72.1°)	221,833	99.0%
4	-		7:27 am	↑ (307°)	4:06 pm	↑ (51°)	Moon does not pass the meridian on this day.
5	-		8:44 am	↑ (310°)	5:09 pm	↑ (50°)	12:23 am	(74.6°)	222,249	99.6%
6	-		9:48 am	↑ (309°)	6:22 pm	↑ (52°)	1:30 am	(74.8°)	223,979	96.9%
7	-		10:36 am	↑ (305°)	7:41 pm	↑ (57°)	2:35 am	(72.7°)	226,823	91.3%
8	-		11:13 am	↑ (299°)	8:59 pm	↑ (64°)	3:34 am	(68.8°)	230,463	83.5%
9	-		11:41 am	↑ (291°)	10:13 pm	↑ (72°)	4:27 am	(63.7°)	234,497	74.1%
10	-		12:04 pm	↑ (283°)	11:22 pm	↑ (81°)	5:15 am	(57.8°)	238,587	63.9%
11	-		12:23 pm	↑ (275°)	-		5:59 am	(51.7°)	242,410	53.4%
12	12:28 am	↑ (89°)	12:41 pm	↑ (267°)	-		6:40 am	(45.6°)	245,751	43.2%
13	1:32 am	↑ (97°)	12:59 pm	↑ (259°)	-		7:21 am	(39.6°)	248,457	33.5%
14	2:35 am	↑ (105°)	1:19 pm	↑ (251°)	-		8:01 am	(34.0°)	250,464	24.6%
15	3:38 am	↑ (113°)	1:40 pm	↑ (245°)	-		8:44 am	(29.0°)	251,761	16.7%
16	4:43 am	↑ (119°)	2:06 pm	↑ (239°)	-		9:28 am	(24.6°)	252,390	10.2%
17	5:47 am	↑ (125°)	2:37 pm	↑ (234°)	-		10:15 am	(21.2°)	252,423	5.1%
18	6:50 am	↑ (128°)	3:16 pm	↑ (231°)	-		11:04 am	(18.9°)	251,942	1.8%
19	7:48 am	↑ (130°)	4:04 pm	↑ (230°)	-		11:56 am	(18.0°)	251,032	0.3%
20	8:39 am	↑ (130°)	5:00 pm	↑ (231°)	-		12:48 pm	(18.4°)	249,759	0.7%
21	9:22 am	↑ (127°)	6:04 pm	↑ (234°)	-		1:40 pm	(20.4°)	248,172	3.1%
22	9:56 am	↑ (123°)	7:11 pm	↑ (239°)	-		2:30 pm	(23.6°)	246,291	7.5%
23	10:25 am	↑ (117°)	8:20 pm	↑ (246°)	-		3:18 pm	(28.0°)	244,128	13.8%
24	10:49 am	↑ (110°)	9:29 pm	↑ (254°)	-		4:04 pm	(33.3°)	241,685	21.8%
25	11:10 am	↑ (102°)	10:38 pm	↑ (262°)	-		4:48 pm	(39.4°)	238,985	31.2%
26	11:30 am	↑ (93°)	11:48 pm	↑ (271°)	-		5:33 pm	(45.8°)	236,077	41.7%
27	11:50 am	↑ (84°)	-		-		6:18 pm	(52.5°)	233,069	53.0%
28	-		1:00 am	↑ (281°)	12:12 pm	↑ (75°)	7:06 pm	(59.1°)	230,132	64.4%
29	-		2:15 am	↑ (290°)	12:38 pm	↑ (67°)	7:58 pm	(65.1°)	227,486	75.3%
30	-		3:35 am	↑ (298°)	1:09 pm	↑ (59°)	8:56 pm	(70.2°)	225,404	85.0%
31	-		4:57 am	↑ (305°)	1:51 pm	↑ (53°)	9:59 pm	(73.6°)	224,162	92.7%
* All times are local time for Riverton. They take into account refraction. Dates are based on the Gregorian calendar. Illumination is calculated at lunar noon.

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