Lewiston Weather in April
Average highs run from 64°F on April 1 to 72°F on April 30, and lows from 36°F to 40°F. Normal precipitation for the month is 2.57 in over about 10 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
- 68°F
- Average low
- 38°F
- Precipitation
- 2.57 in
- Record high
- 94°FApr 24, 1946
- Record low
- 16°FApr 4, 1924
- Chance of a freeze
- 91%
- Daylight
- 12 h 42 min to 13 h 56 min
- Cloud cover
- 52%
- Humidity
- 79%
- Dew point
- 38°F
- Wind
- 3.8 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 | 64°F | 36°F | 87°F 1966 | 20°F 1953 | 37% | 0% |
| Apr 2 | 64°F | 36°F | 87°F 2002 | 18°F 1945 | 37% | 0% |
| Apr 3 | 64°F | 36°F | 87°F 2000 | 20°F 1918 | 36% | 0% |
| Apr 4 | 65°F | 36°F | 87°F 1990 | 16°F 1924 | 36% | 0% |
| Apr 5 | 65°F | 36°F | 87°F 1990 | 18°F 1945 | 36% | 0% |
| Apr 6 | 65°F | 36°F | 90°F 2016 | 19°F 1929 | 36% | 0% |
| Apr 7 | 65°F | 37°F | 93°F 1924 | 23°F 1957 | 35% | 0% |
| Apr 8 | 65°F | 37°F | 90°F 1924 | 21°F 1932 | 35% | 0% |
| Apr 9 | 66°F | 37°F | 90°F 1951 | 19°F 1933 | 35% | 0% |
| Apr 10 | 66°F | 37°F | 89°F 1951 | 21°F 1933 | 35% | 0% |
| Apr 11 | 66°F | 37°F | 88°F 1988 | 19°F 1991 | 34% | 0% |
| Apr 12 | 66°F | 37°F | 90°F 1951 | 22°F 1945 | 34% | 0% |
| Apr 13 | 67°F | 37°F | 90°F 1947 | 22°F 1945 | 33% | 0% |
| Apr 14 | 67°F | 37°F | 91°F 1947 | 20°F 1945 | 33% | 0% |
| Apr 15 | 67°F | 37°F | 93°F 1947 | 19°F 1955 | 33% | 0% |
| Apr 16 | 68°F | 37°F | 90°F 1939 | 20°F 1924 | 32% | 0% |
| Apr 17 | 68°F | 38°F | 89°F 1954 | 21°F 1975 | 32% | 0% |
| Apr 18 | 68°F | 38°F | 90°F 1939 | 20°F 1975 | 31% | 0% |
| Apr 19 | 69°F | 38°F | 90°F 1939 | 22°F 1972 | 31% | 0% |
| Apr 20 | 69°F | 38°F | 92°F 2009 | 23°F 1968 | 30% | 0% |
| Apr 21 | 69°F | 38°F | 92°F 1986 | 19°F 1932 | 30% | 0% |
| Apr 22 | 70°F | 39°F | 92°F 1986 | 20°F 1932 | 29% | 0% |
| Apr 23 | 70°F | 39°F | 92°F 1946 | 21°F 1984 | 29% | 0% |
| Apr 24 | 70°F | 39°F | 94°F 1946 | 24°F 1914 | 29% | 0% |
| Apr 25 | 71°F | 39°F | 90°F 1926 | 21°F 1924 | 28% | 0% |
| Apr 26 | 71°F | 39°F | 91°F 1926 | 24°F 1925 | 28% | 0% |
| Apr 27 | 71°F | 40°F | 94°F 1987 | 20°F 1955 | 28% | 0% |
| Apr 28 | 72°F | 40°F | 90°F 2020 | 20°F 1955 | 27% | 0% |
| Apr 29 | 72°F | 40°F | 94°F 1981 | 22°F 1972 | 27% | 0% |
| Apr 30 | 72°F | 40°F | 90°F 1919 | 23°F 1946 | 27% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- April 1
- sunrise 6:54 AM, sunset 7:36 PM
- April 30
- sunrise 6:11 AM, sunset 8:07 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00049026 (Trinity Rvr Hatchery), public domain. Records: NOAA GHCN-Daily, station USC00049490, 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.