Sunrise and sunset in Spearfish

Spearfish Sunrise, Sunset and Moon in August 2026

Local time (MDT)

Day length goes from 14 h 38 min on August 1 to 13 h 16 min on August 31. Sunrise moves from 5:42 AM to 6:17 AM and sunset from 8:20 PM to 7:33 PM.

Every day

Dawn and dusk are civil twilight (the sun 6 degrees below the horizon); golden hour starts when the evening sun is 6 degrees up; full dark is astronomical twilight, 18 degrees down. A blank moonrise or moonset means it falls on the next day.

DateDawnSunriseSunsetDuskGolden hourFull darkDay lengthChangeMoonMoonriseMoonset
Aug 15:09 AM5:42 AM8:20 PM8:54 PM7:39 PM10:23 PM14 h 38 minWaning gibbous, 89%9:44 PM8:52 AM
Aug 25:10 AM5:44 AM8:19 PM8:52 PM7:38 PM10:21 PM14 h 35 min-3.0 minWaning gibbous, 81%10:02 PM10:01 AM
Aug 35:12 AM5:45 AM8:18 PM8:51 PM7:37 PM10:19 PM14 h 33 min-2.0 minWaning gibbous, 72%10:21 PM11:12 AM
Aug 45:13 AM5:46 AM8:17 PM8:49 PM7:35 PM10:17 PM14 h 31 min-2.0 minWaning gibbous, 63%10:44 PM12:25 PM
Aug 55:14 AM5:47 AM8:15 PM8:48 PM7:34 PM10:15 PM14 h 28 min-3.0 minLast quarter 8:21 PM11:12 PM1:41 PM
Aug 65:15 AM5:48 AM8:14 PM8:46 PM7:33 PM10:13 PM14 h 26 min-2.0 minLast quarter, 41%11:48 PM3:00 PM
Aug 75:17 AM5:49 AM8:12 PM8:45 PM7:32 PM10:10 PM14 h 23 min-3.0 minWaning crescent, 31%4:17 PM
Aug 85:18 AM5:50 AM8:11 PM8:43 PM7:30 PM10:08 PM14 h 21 min-2.0 minWaning crescent, 22%12:36 AM5:28 PM
Aug 95:19 AM5:52 AM8:10 PM8:42 PM7:29 PM10:06 PM14 h 18 min-3.0 minWaning crescent, 14%1:38 AM6:26 PM
Aug 105:20 AM5:53 AM8:08 PM8:40 PM7:28 PM10:04 PM14 h 15 min-3.0 minWaning crescent, 7%2:54 AM7:12 PM
Aug 115:22 AM5:54 AM8:07 PM8:39 PM7:26 PM10:02 PM14 h 13 min-2.0 minWaning crescent, 3%4:16 AM7:47 PM
Aug 125:23 AM5:55 AM8:05 PM8:37 PM7:25 PM10:00 PM14 h 10 min-3.0 minNew moon 11:37 AM5:39 AM8:14 PM
Aug 135:24 AM5:56 AM8:04 PM8:35 PM7:23 PM9:58 PM14 h 08 min-2.0 minNew moon, 0%6:59 AM8:36 PM
Aug 145:26 AM5:57 AM8:02 PM8:34 PM7:22 PM9:55 PM14 h 05 min-3.0 minWaxing crescent, 2%8:16 AM8:56 PM
Aug 155:27 AM5:58 AM8:01 PM8:32 PM7:20 PM9:53 PM14 h 03 min-2.0 minWaxing crescent, 7%9:29 AM9:15 PM
Aug 165:28 AM6:00 AM7:59 PM8:30 PM7:19 PM9:51 PM13 h 59 min-4.0 minWaxing crescent, 13%10:40 AM9:34 PM
Aug 175:29 AM6:01 AM7:57 PM8:29 PM7:17 PM9:49 PM13 h 56 min-3.0 minWaxing crescent, 21%11:50 AM9:56 PM
Aug 185:31 AM6:02 AM7:56 PM8:27 PM7:16 PM9:47 PM13 h 54 min-2.0 minWaxing crescent, 30%12:59 PM10:20 PM
Aug 195:32 AM6:03 AM7:54 PM8:25 PM7:14 PM9:44 PM13 h 51 min-3.0 minFirst quarter 8:46 PM2:06 PM10:50 PM
Aug 205:33 AM6:04 AM7:52 PM8:23 PM7:13 PM9:42 PM13 h 48 min-3.0 minFirst quarter, 50%3:11 PM11:27 PM
Aug 215:34 AM6:05 AM7:51 PM8:22 PM7:11 PM9:40 PM13 h 46 min-2.0 minWaxing gibbous, 61%4:10 PM
Aug 225:36 AM6:07 AM7:49 PM8:20 PM7:10 PM9:38 PM13 h 42 min-4.0 minWaxing gibbous, 71%5:02 PM12:13 AM
Aug 235:37 AM6:08 AM7:47 PM8:18 PM7:08 PM9:35 PM13 h 39 min-3.0 minWaxing gibbous, 80%5:45 PM1:07 AM
Aug 245:38 AM6:09 AM7:46 PM8:16 PM7:06 PM9:33 PM13 h 37 min-2.0 minWaxing gibbous, 88%6:19 PM2:09 AM
Aug 255:40 AM6:10 AM7:44 PM8:14 PM7:05 PM9:31 PM13 h 34 min-3.0 minWaxing gibbous, 94%6:48 PM3:15 AM
Aug 265:41 AM6:11 AM7:42 PM8:13 PM7:03 PM9:29 PM13 h 31 min-3.0 minWaxing gibbous, 98%7:11 PM4:23 AM
Aug 275:42 AM6:12 AM7:41 PM8:11 PM7:01 PM9:27 PM13 h 29 min-2.0 minFull moon 10:18 PM7:32 PM5:32 AM
Aug 285:43 AM6:14 AM7:39 PM8:09 PM7:00 PM9:24 PM13 h 25 min-4.0 minFull moon, 100%7:50 PM6:41 AM
Aug 295:45 AM6:15 AM7:37 PM8:07 PM6:58 PM9:22 PM13 h 22 min-3.0 minWaning gibbous, 97%8:09 PM7:51 AM
Aug 305:46 AM6:16 AM7:35 PM8:05 PM6:56 PM9:20 PM13 h 19 min-3.0 minWaning gibbous, 92%8:28 PM9:02 AM
Aug 315:47 AM6:17 AM7:33 PM8:03 PM6:55 PM9:18 PM13 h 16 min-3.0 minWaning gibbous, 86%8:50 PM10:15 AM

Other months

More

Sources

Computed with the NOAA solar position equations and the lunar methods of Meeus, Astronomical Algorithms, for a flat horizon; hills and buildings delay a real sunrise.