Spearfish Weather in April
Average highs run from 51°F on April 1 to 59°F on April 30, and lows from 29°F to 36°F. Normal precipitation for the month is 2.23 in over about 9 wet days.
April day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
April at a glance
- Average high
- 55°F
- Average low
- 32°F
- Precipitation
- 2.23 in
- Snowfall
- 8.5 in
- Record high
- 91°FApr 22, 1980
- Record low
- -8°FApr 4, 1920
- Chance of a freeze
- 100%
- Daylight
- 12 h 47 min to 14 h 12 min
- Cloud cover
- 67%
- Humidity
- 62%
- Dew point
- 28°F
- Wind
- 8.9 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Apr 1 | 51°F | 29°F | 79°F 1908 | 1°F 1899 | 27% | 10% |
| Apr 2 | 52°F | 29°F | 81°F 2012 | -2°F 1920 | 27% | 9% |
| Apr 3 | 52°F | 29°F | 79°F 1943 | -4°F 2020 | 27% | 9% |
| Apr 4 | 52°F | 29°F | 90°F 1921 | -8°F 1920 | 28% | 9% |
| Apr 5 | 52°F | 30°F | 77°F 1991 | 5°F 1920 | 28% | 9% |
| Apr 6 | 53°F | 30°F | 80°F 1969 | 6°F 1920 | 28% | 9% |
| Apr 7 | 53°F | 30°F | 78°F 1952 | 4°F 1997 | 28% | 9% |
| Apr 8 | 53°F | 30°F | 82°F 2005 | 6°F 1997 | 29% | 9% |
| Apr 9 | 53°F | 30°F | 84°F 1977 | 10°F 1928 | 29% | 9% |
| Apr 10 | 54°F | 31°F | 80°F 1960 | 9°F 1997 | 29% | 9% |
| Apr 11 | 54°F | 31°F | 80°F 1931 | 4°F 1940 | 29% | 8% |
| Apr 12 | 54°F | 31°F | 84°F 2016 | 8°F 1940 | 30% | 8% |
| Apr 13 | 54°F | 31°F | 86°F 1936 | 8°F 2022 | 30% | 8% |
| Apr 14 | 55°F | 32°F | 83°F 1895 | 6°F 1928 | 30% | 8% |
| Apr 15 | 55°F | 32°F | 82°F 2015 | 6°F 1961 | 30% | 8% |
| Apr 16 | 55°F | 32°F | 85°F 1979 | 11°F 1907 | 31% | 7% |
| Apr 17 | 55°F | 32°F | 83°F 1979 | 17°F 1961 | 31% | 7% |
| Apr 18 | 55°F | 32°F | 83°F 2005 | 14°F 1953 | 31% | 7% |
| Apr 19 | 56°F | 33°F | 85°F 1936 | 12°F 1920 | 31% | 7% |
| Apr 20 | 56°F | 33°F | 88°F 1910 | 10°F 1966 | 31% | 7% |
| Apr 21 | 56°F | 33°F | 87°F 1980 | 13°F 1927 | 31% | 6% |
| Apr 22 | 57°F | 33°F | 91°F 1980 | 17°F 1967 | 32% | 6% |
| Apr 23 | 57°F | 34°F | 85°F 1906 | 17°F 1931 | 32% | 6% |
| Apr 24 | 57°F | 34°F | 86°F 1962 | 11°F 1920 | 32% | 6% |
| Apr 25 | 57°F | 34°F | 85°F 2012 | 11°F 1920 | 32% | 5% |
| Apr 26 | 58°F | 35°F | 85°F 1898 | 12°F 1920 | 33% | 5% |
| Apr 27 | 58°F | 35°F | 86°F 1910 | 9°F 1920 | 33% | 5% |
| Apr 28 | 58°F | 35°F | 85°F 2001 | 13°F 1969 | 33% | 5% |
| Apr 29 | 59°F | 36°F | 84°F 1987 | 13°F 1907 | 33% | 5% |
| Apr 30 | 59°F | 36°F | 89°F 1992 | 12°F 1950 | 34% | 4% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- April 1
- sunrise 6:36 AM, sunset 7:23 PM
- April 30
- sunrise 5:47 AM, sunset 7:59 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00397882 (Spearfish), public domain. Records: NOAA GHCN-Daily, station USC00397882, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.