Lewis and Clark County Weather in April
Average highs run from 50°F on April 1 to 57°F on April 30, and lows from 28°F to 33°F. Normal precipitation for the month is 1.77 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
- 53°F
- Average low
- 30°F
- Precipitation
- 1.77 in
- Snowfall
- 2.2 in
- Record high
- 83°FApr 24, 2012
- Record low
- -12°FApr 3, 2002
- Chance of a freeze
- 100%
- Daylight
- 12 h 51 min to 14 h 24 min
- Cloud cover
- 73%
- Humidity
- 75%
- Dew point
- 27°F
- Wind
- 6.0 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 | 50°F | 28°F | 68°F 1994 | -5°F 1975 | 28% | 5% |
| Apr 2 | 50°F | 28°F | 69°F 2016 | -11°F 2002 | 28% | 5% |
| Apr 3 | 51°F | 28°F | 75°F 1992 | -12°F 2002 | 28% | 5% |
| Apr 4 | 51°F | 28°F | 71°F 1987 | -5°F 1975 | 28% | 5% |
| Apr 5 | 51°F | 28°F | 70°F 1987 | 0°F 1975 | 28% | 5% |
| Apr 6 | 51°F | 28°F | 70°F 1976 | -2°F 1997 | 28% | 5% |
| Apr 7 | 51°F | 29°F | 75°F 2005 | 5°F 1975 | 28% | 5% |
| Apr 8 | 51°F | 29°F | 78°F 2016 | 0°F 1975 | 28% | 4% |
| Apr 9 | 52°F | 29°F | 70°F 1976 | 9°F 1975 | 28% | 4% |
| Apr 10 | 52°F | 29°F | 72°F 1985 | 10°F 1975 | 28% | 4% |
| Apr 11 | 52°F | 29°F | 72°F 2003 | -2°F 2020 | 28% | 4% |
| Apr 12 | 52°F | 29°F | 72°F 2016 | 2°F 1997 | 28% | 4% |
| Apr 13 | 52°F | 29°F | 71°F 2008 | 4°F 1968 | 28% | 4% |
| Apr 14 | 53°F | 30°F | 73°F 2008 | 4°F 2022 | 28% | 4% |
| Apr 15 | 53°F | 30°F | 80°F 1988 | 2°F 2022 | 28% | 4% |
| Apr 16 | 53°F | 30°F | 77°F 1984 | 8°F 2022 | 28% | 3% |
| Apr 17 | 53°F | 30°F | 78°F 1984 | 8°F 1968 | 28% | 3% |
| Apr 18 | 54°F | 30°F | 77°F 1994 | 11°F 2011 | 28% | 3% |
| Apr 19 | 54°F | 30°F | 76°F 1980 | 6°F 2008 | 28% | 3% |
| Apr 20 | 54°F | 30°F | 81°F 1980 | -9°F 2008 | 28% | 3% |
| Apr 21 | 54°F | 31°F | 77°F 2016 | 18°F 1968 | 28% | 3% |
| Apr 22 | 55°F | 31°F | 79°F 1969 | 0°F 1967 | 28% | 3% |
| Apr 23 | 55°F | 31°F | 80°F 2012 | 1°F 2009 | 28% | 2% |
| Apr 24 | 55°F | 31°F | 83°F 2012 | 8°F 2002 | 28% | 2% |
| Apr 25 | 56°F | 32°F | 76°F 2012 | 14°F 2010 | 28% | 2% |
| Apr 26 | 56°F | 32°F | 75°F 2004 | 12°F 1966 | 28% | 2% |
| Apr 27 | 56°F | 32°F | 82°F 1987 | 8°F 1966 | 28% | 2% |
| Apr 28 | 56°F | 32°F | 82°F 1987 | 12°F 2004 | 28% | 2% |
| Apr 29 | 57°F | 33°F | 81°F 1987 | 14°F 1984 | 28% | 2% |
| Apr 30 | 57°F | 33°F | 82°F 1992 | 14°F 2019 | 28% | 2% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- April 1
- sunrise 7:08 AM, sunset 7:59 PM
- April 30
- sunrise 6:15 AM, sunset 8:39 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00247159 (Rogers Pass 9 Nne), public domain. Records: NOAA GHCN-Daily, station USC00247159, 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.