Mason City, Iowa, USA — Moonrise, Moonset, and Moon Phases, December 2025

Moonrise, Moonset, and Phase Calendar for Mason City, December 2025

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2025	Moonrise/Moonset						Meridian Passing
Dec	Moonrise		Moonset		Moonrise		Time		Distance (mi)	Illumination
1	-		3:14 am	↑ (284°)	2:10 pm	↑ (72°)	9:14 pm	(61.2°)	224,952	88.2%
2	-		4:34 am	↑ (293°)	2:38 pm	↑ (64°)	10:10 pm	(67.2°)	222,813	95.0%
3	-		5:59 am	↑ (301°)	3:15 pm	↑ (56°)	11:13 pm	(71.8°)	221,845	98.9%
4	-		7:23 am	↑ (307°)	4:03 pm	↑ (51°)	Moon does not pass the meridian on this day.
5	-		8:41 am	↑ (310°)	5:04 pm	↑ (50°)	12:19 am	(74.4°)	222,204	99.7%
6	-		9:45 am	↑ (309°)	6:18 pm	↑ (52°)	1:27 am	(74.7°)	223,882	97.1%
7	-		10:34 am	↑ (305°)	7:37 pm	↑ (57°)	2:32 am	(72.7°)	226,685	91.6%
8	-		11:11 am	↑ (299°)	8:55 pm	↑ (64°)	3:31 am	(68.8°)	230,299	83.8%
9	-		11:39 am	↑ (292°)	10:09 pm	↑ (72°)	4:24 am	(63.8°)	234,324	74.5%
10	-		12:02 pm	↑ (284°)	11:18 pm	↑ (80°)	5:12 am	(58.0°)	238,418	64.3%
11	-		12:22 pm	↑ (275°)	-		5:56 am	(51.9°)	242,257	53.9%
12	12:24 am	↑ (89°)	12:40 pm	↑ (267°)	-		6:38 am	(45.7°)	245,623	43.6%
13	1:28 am	↑ (97°)	12:58 pm	↑ (259°)	-		7:18 am	(39.7°)	248,356	33.9%
14	2:32 am	↑ (105°)	1:17 pm	↑ (252°)	-		7:59 am	(34.1°)	250,394	24.9%
15	3:35 am	↑ (112°)	1:38 pm	↑ (245°)	-		8:41 am	(29.0°)	251,720	17.0%
16	4:40 am	↑ (119°)	2:03 pm	↑ (239°)	-		9:25 am	(24.7°)	252,376	10.4%
17	5:44 am	↑ (124°)	2:34 pm	↑ (234°)	-		10:12 am	(21.2°)	252,433	5.3%
18	6:47 am	↑ (128°)	3:13 pm	↑ (231°)	-		11:01 am	(18.9°)	251,972	1.9%
19	7:45 am	↑ (130°)	4:00 pm	↑ (229°)	-		11:53 am	(17.8°)	251,078	0.3%
20	8:37 am	↑ (130°)	4:56 pm	↑ (231°)	-		12:45 pm	(18.3°)	249,819	0.6%
21	9:20 am	↑ (128°)	6:00 pm	↑ (234°)	-		1:37 pm	(20.1°)	248,245	3.0%
22	9:55 am	↑ (123°)	7:07 pm	↑ (239°)	-		2:27 pm	(23.3°)	246,376	7.3%
23	10:23 am	↑ (117°)	8:16 pm	↑ (246°)	-		3:15 pm	(27.7°)	244,225	13.5%
24	10:48 am	↑ (110°)	9:25 pm	↑ (254°)	-		4:01 pm	(33.0°)	241,794	21.4%
25	11:09 am	↑ (102°)	10:34 pm	↑ (262°)	-		4:46 pm	(39.0°)	239,103	30.8%
26	11:29 am	↑ (93°)	11:44 pm	↑ (271°)	-		5:30 pm	(45.4°)	236,202	41.3%
27	11:49 am	↑ (84°)	-		-		6:15 pm	(52.1°)	233,196	52.5%
28	-		12:56 am	↑ (280°)	12:10 pm	↑ (76°)	7:03 pm	(58.7°)	230,251	63.9%
29	-		2:12 am	↑ (289°)	12:35 pm	↑ (67°)	7:55 pm	(64.8°)	227,589	74.8%
30	-		3:31 am	↑ (298°)	1:07 pm	↑ (59°)	8:53 pm	(69.9°)	225,477	84.6%
31	-		4:53 am	↑ (305°)	1:47 pm	↑ (53°)	9:55 pm	(73.4°)	224,194	92.5%
* All times are local time for Mason City. They take into account refraction. Dates are based on the Gregorian calendar. Illumination is calculated at lunar noon.

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