Rocky Mountain National Park, Colorado, USA — Moonrise, Moonset, and Moon Phases, May 2025

Moonrise, Moonset, and Phase Calendar for Rocky Mountain National Park, May 2025

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2025	Moonrise/Moonset						Meridian Passing
May	Moonrise		Moonset		Moonrise		Time		Distance (mi)	Illumination
1	-		12:10 am	↑ (309°)	8:55 am	↑ (51°)	5:04 pm	(77.6°)	231,432	23.3%
2	-		1:08 am	↑ (307°)	10:04 am	↑ (54°)	6:03 pm	(75.3°)	235,388	33.7%
3	-		1:52 am	↑ (303°)	11:15 am	↑ (59°)	6:57 pm	(71.5°)	239,293	44.5%
4	-		2:27 am	↑ (298°)	12:25 pm	↑ (65°)	7:46 pm	(66.8°)	242,884	55.2%
5	-		2:55 am	↑ (291°)	1:31 pm	↑ (72°)	8:30 pm	(61.3°)	245,981	65.3%
6	-		3:18 am	↑ (284°)	2:34 pm	↑ (80°)	9:11 pm	(55.5°)	248,481	74.5%
7	-		3:38 am	↑ (276°)	3:35 pm	↑ (87°)	9:51 pm	(49.6°)	250,352	82.6%
8	-		3:57 am	↑ (269°)	4:35 pm	↑ (95°)	10:30 pm	(43.7°)	251,601	89.3%
9	-		4:16 am	↑ (261°)	5:35 pm	↑ (103°)	11:10 pm	(38.0°)	252,272	94.5%
10	-		4:36 am	↑ (254°)	6:36 pm	↑ (110°)	11:51 pm	(32.8°)	252,418	98.0%
11	-		4:59 am	↑ (247°)	7:38 pm	↑ (117°)	Moon does not pass the meridian on this day.
12	-		5:25 am	↑ (241°)	8:41 pm	↑ (122°)	12:35 am	(28.2°)	252,093	99.7%
13	-		5:56 am	↑ (236°)	9:44 pm	↑ (126°)	1:21 am	(24.4°)	251,340	99.5%
14	-		6:35 am	↑ (233°)	10:44 pm	↑ (129°)	2:11 am	(21.8°)	250,181	97.4%
15	-		7:23 am	↑ (231°)	11:38 pm	↑ (129°)	3:04 am	(20.5°)	248,626	93.3%
16	-		8:19 am	↑ (232°)	-		3:57 am	(20.6°)	246,670	87.4%
17	12:24 am	↑ (127°)	9:22 am	↑ (235°)	-		4:51 am	(22.4°)	244,318	79.8%
18	1:03 am	↑ (122°)	10:30 am	↑ (240°)	-		5:43 am	(25.6°)	241,581	70.8%
19	1:35 am	↑ (117°)	11:40 am	↑ (246°)	-		6:33 am	(30.0°)	238,525	60.5%
20	2:03 am	↑ (109°)	12:50 pm	↑ (254°)	-		7:22 am	(35.6°)	235,243	49.5%
21	2:28 am	↑ (101°)	2:01 pm	↑ (263°)	-		8:09 am	(42.0°)	231,915	38.2%
22	2:51 am	↑ (92°)	3:14 pm	↑ (272°)	-		8:56 am	(49.0°)	228,758	27.1%
23	3:15 am	↑ (83°)	4:29 pm	↑ (282°)	-		9:45 am	(56.2°)	226,062	17.1%
24	3:41 am	↑ (74°)	5:47 pm	↑ (291°)	-		10:37 am	(63.1°)	224,098	8.8%
25	4:12 am	↑ (66°)	7:09 pm	↑ (299°)	-		11:33 am	(69.3°)	223,147	3.1%
26	4:49 am	↑ (59°)	8:31 pm	↑ (305°)	-		12:34 pm	(74.2°)	223,370	0.4%
27	5:36 am	↑ (54°)	9:47 pm	↑ (308°)	-		1:39 pm	(77.1°)	224,800	0.9%
28	6:35 am	↑ (52°)	10:53 pm	↑ (308°)	-		2:45 pm	(77.9°)	227,316	4.6%
29	7:43 am	↑ (53°)	11:44 pm	↑ (305°)	-		3:48 pm	(76.4°)	230,659	10.9%
30	8:56 am	↑ (57°)	-		-		4:46 pm	(73.1°)	234,481	19.1%
31	-		12:24 am	↑ (300°)	10:09 am	↑ (62°)	5:38 pm	(68.6°)	238,429	28.6%
* All times are local time for Rocky Mountain National Park. Time is adjusted for DST when applicable. They take into account refraction. Dates are based on the Gregorian calendar. Illumination is calculated at lunar noon.

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