Great Falls, Montana, USA — Moonrise, Moonset, and Moon Phases, December 2025

Moonrise, Moonset, and Phase Calendar for Great Falls, December 2025

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2025	Moonrise/Moonset						Meridian Passing
Dec	Moonrise		Moonset		Moonrise		Time		Distance (mi)	Illumination
1	-		3:37 am	↑ (285°)	2:15 pm	↑ (70°)	9:29 pm	(57.1°)	224,820	88.6%
2	-		5:03 am	↑ (296°)	2:39 pm	↑ (61°)	10:26 pm	(63.0°)	222,734	95.2%
3	-		6:32 am	↑ (304°)	3:11 pm	↑ (53°)	11:28 pm	(67.5°)	221,831	99.1%
4	-		8:01 am	↑ (311°)	3:56 pm	↑ (48°)	Moon does not pass the meridian on this day.
5	-		9:20 am	↑ (314°)	4:57 pm	↑ (46°)	12:35 am	(70.0°)	222,258	99.6%
6	-		10:23 am	↑ (313°)	6:12 pm	↑ (48°)	1:42 am	(70.2°)	223,998	96.9%
7	-		11:08 am	↑ (308°)	7:35 pm	↑ (54°)	2:47 am	(68.1°)	226,850	91.3%
8	-		11:40 am	↑ (301°)	8:58 pm	↑ (62°)	3:46 am	(64.2°)	230,494	83.4%
9	-		12:03 pm	↑ (293°)	10:16 pm	↑ (71°)	4:39 am	(59.1°)	234,531	74.0%
10	-		12:22 pm	↑ (284°)	11:30 pm	↑ (80°)	5:27 am	(53.3°)	238,620	63.8%
11	-		12:37 pm	↑ (275°)	-		6:11 am	(47.1°)	242,439	53.4%
12	12:40 am	↑ (89°)	12:52 pm	↑ (267°)	-		6:52 am	(41.0°)	245,776	43.1%
13	1:47 am	↑ (98°)	1:06 pm	↑ (258°)	-		7:33 am	(35.1°)	248,476	33.4%
14	2:55 am	↑ (107°)	1:21 pm	↑ (250°)	-		8:13 am	(29.5°)	250,477	24.5%
15	4:02 am	↑ (115°)	1:39 pm	↑ (242°)	-		8:56 am	(24.4°)	251,768	16.7%
16	5:11 am	↑ (122°)	2:01 pm	↑ (236°)	-		9:40 am	(20.1°)	252,393	10.1%
17	6:19 am	↑ (128°)	2:29 pm	↑ (230°)	-		10:27 am	(16.7°)	252,421	5.1%
18	7:24 am	↑ (132°)	3:05 pm	↑ (227°)	-		11:16 am	(14.4°)	251,937	1.8%
19	8:24 am	↑ (134°)	3:52 pm	↑ (225°)	-		12:08 pm	(13.5°)	251,023	0.3%
20	9:14 am	↑ (134°)	4:49 pm	↑ (227°)	-		1:00 pm	(14.0°)	249,747	0.7%
21	9:55 am	↑ (131°)	5:55 pm	↑ (231°)	-		1:52 pm	(15.9°)	248,157	3.1%
22	10:26 am	↑ (126°)	7:06 pm	↑ (236°)	-		2:42 pm	(19.1°)	246,274	7.6%
23	10:50 am	↑ (119°)	8:20 pm	↑ (244°)	-		3:30 pm	(23.5°)	244,109	13.9%
24	11:10 am	↑ (111°)	9:33 pm	↑ (253°)	-		4:16 pm	(28.9°)	241,665	21.8%
25	11:28 am	↑ (102°)	10:46 pm	↑ (262°)	-		5:00 pm	(34.9°)	238,962	31.3%
26	11:43 am	↑ (93°)	-		-		5:45 pm	(41.4°)	236,053	41.8%
27	-		12:01 am	↑ (272°)	11:59 am	↑ (84°)	6:30 pm	(48.0°)	233,045	53.0%
28	-		1:17 am	↑ (282°)	12:17 pm	↑ (74°)	7:18 pm	(54.6°)	230,109	64.4%
29	-		2:38 am	↑ (292°)	12:38 pm	↑ (65°)	8:11 pm	(60.6°)	227,467	75.4%
30	-		4:02 am	↑ (301°)	1:05 pm	↑ (56°)	9:08 pm	(65.7°)	225,391	85.1%
31	-		5:29 am	↑ (308°)	1:42 pm	↑ (50°)	10:11 pm	(69.1°)	224,156	92.8%
* All times are local time for Great Falls. They take into account refraction. Dates are based on the Gregorian calendar. Illumination is calculated at lunar noon.

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