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

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

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2025	Moonrise/Moonset						Meridian Passing
Dec	Moonrise		Moonset		Moonrise		Time		Distance (mi)	Illumination
1	-		3:09 am	↑ (284°)	2:04 pm	↑ (72°)	9:08 pm	(61.8°)	224,856	88.5%
2	-		4:29 am	↑ (293°)	2:33 pm	↑ (63°)	10:05 pm	(67.7°)	222,755	95.2%
3	-		5:53 am	↑ (301°)	3:10 pm	↑ (56°)	11:07 pm	(72.2°)	221,835	99.0%
4	-		7:17 am	↑ (307°)	3:59 pm	↑ (51°)	Moon does not pass the meridian on this day.
5	-		8:35 am	↑ (310°)	5:01 pm	↑ (50°)	12:14 am	(74.8°)	222,243	99.6%
6	-		9:38 am	↑ (309°)	6:15 pm	↑ (52°)	1:22 am	(74.9°)	223,966	97.0%
7	-		10:27 am	↑ (305°)	7:33 pm	↑ (57°)	2:26 am	(72.9°)	226,804	91.4%
8	-		11:04 am	↑ (299°)	8:51 pm	↑ (64°)	3:26 am	(69.0°)	230,440	83.5%
9	-		11:32 am	↑ (291°)	10:04 pm	↑ (72°)	4:19 am	(63.9°)	234,474	74.2%
10	-		11:55 am	↑ (283°)	11:14 pm	↑ (81°)	5:07 am	(58.1°)	238,564	64.0%
11	-		12:15 pm	↑ (275°)	-		5:50 am	(51.9°)	242,390	53.5%
12	12:19 am	↑ (89°)	12:33 pm	↑ (267°)	-		6:32 am	(45.8°)	245,734	43.2%
13	1:23 am	↑ (97°)	12:51 pm	↑ (259°)	-		7:12 am	(39.8°)	248,443	33.5%
14	2:26 am	↑ (105°)	1:11 pm	↑ (252°)	-		7:53 am	(34.2°)	250,455	24.6%
15	3:29 am	↑ (113°)	1:32 pm	↑ (245°)	-		8:35 am	(29.2°)	251,755	16.8%
16	4:34 am	↑ (119°)	1:58 pm	↑ (239°)	-		9:19 am	(24.8°)	252,389	10.2%
17	5:38 am	↑ (124°)	2:29 pm	↑ (234°)	-		10:06 am	(21.4°)	252,425	5.2%
18	6:40 am	↑ (128°)	3:08 pm	↑ (231°)	-		10:56 am	(19.1°)	251,946	1.8%
19	7:38 am	↑ (130°)	3:56 pm	↑ (230°)	-		11:47 am	(18.1°)	251,038	0.3%
20	8:29 am	↑ (130°)	4:52 pm	↑ (231°)	-		12:40 pm	(18.6°)	249,767	0.7%
21	9:12 am	↑ (127°)	5:56 pm	↑ (234°)	-		1:32 pm	(20.5°)	248,181	3.1%
22	9:47 am	↑ (123°)	7:03 pm	↑ (239°)	-		2:22 pm	(23.8°)	246,302	7.5%
23	10:16 am	↑ (117°)	8:12 pm	↑ (246°)	-		3:10 pm	(28.2°)	244,141	13.8%
24	10:40 am	↑ (110°)	9:20 pm	↑ (254°)	-		3:55 pm	(33.5°)	241,700	21.7%
25	11:02 am	↑ (102°)	10:29 pm	↑ (262°)	-		4:40 pm	(39.5°)	239,001	31.1%
26	11:22 am	↑ (93°)	11:39 pm	↑ (271°)	-		5:24 pm	(46.0°)	236,094	41.7%
27	11:42 am	↑ (84°)	-		-		6:10 pm	(52.6°)	233,086	52.9%
28	-		12:51 am	↑ (281°)	12:04 pm	↑ (75°)	6:58 pm	(59.2°)	230,148	64.3%
29	-		2:06 am	↑ (290°)	12:30 pm	↑ (67°)	7:50 pm	(65.3°)	227,500	75.2%
30	-		3:26 am	↑ (298°)	1:02 pm	↑ (59°)	8:47 pm	(70.3°)	225,414	85.0%
31	-		4:47 am	↑ (305°)	1:43 pm	↑ (53°)	9:50 pm	(73.8°)	224,166	92.7%
* All times are local time for Casper. They take into account refraction. Dates are based on the Gregorian calendar. Illumination is calculated at lunar noon.

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