Boise Weather in April
Average highs run from 59°F on April 1 to 67°F on April 30, and lows from 37°F to 43°F. Normal precipitation for the month is 1.23 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
- 62°F
- Average low
- 40°F
- Precipitation
- 1.23 in
- Snowfall
- 0.1 in
- Record high
- 92°FApr 25, 1946
- Record low
- 19°FApr 13, 1968
- Chance of a freeze
- 91%
- Daylight
- 12 h 46 min to 14 h 08 min
- Cloud cover
- 61%
- Humidity
- 59%
- Dew point
- 32°F
- Wind
- 8.1 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 | 59°F | 37°F | 82°F 1966 | 20°F 1975 | 32% | 3% |
| Apr 2 | 59°F | 37°F | 79°F 1943 | 20°F 1976 | 32% | 2% |
| Apr 3 | 59°F | 38°F | 79°F 1987 | 21°F 1955 | 32% | 2% |
| Apr 4 | 59°F | 38°F | 79°F 2000 | 25°F 1950 | 32% | 2% |
| Apr 5 | 59°F | 38°F | 80°F 1960 | 21°F 1997 | 32% | 2% |
| Apr 6 | 60°F | 38°F | 78°F 1988 | 23°F 1982 | 32% | 2% |
| Apr 7 | 60°F | 38°F | 79°F 1977 | 23°F 1984 | 32% | 2% |
| Apr 8 | 60°F | 38°F | 82°F 1996 | 22°F 1953 | 32% | 2% |
| Apr 9 | 60°F | 38°F | 78°F 2016 | 23°F 1987 | 31% | 2% |
| Apr 10 | 61°F | 38°F | 82°F 2023 | 24°F 1945 | 31% | 2% |
| Apr 11 | 61°F | 39°F | 80°F 1949 | 23°F 1953 | 31% | 1% |
| Apr 12 | 61°F | 39°F | 82°F 1988 | 23°F 1970 | 31% | 1% |
| Apr 13 | 61°F | 39°F | 81°F 2024 | 19°F 1968 | 31% | 1% |
| Apr 14 | 62°F | 39°F | 86°F 1962 | 25°F 1945 | 31% | 1% |
| Apr 15 | 62°F | 39°F | 85°F 1990 | 21°F 1995 | 30% | 1% |
| Apr 16 | 62°F | 39°F | 85°F 1994 | 20°F 1960 | 30% | 1% |
| Apr 17 | 62°F | 40°F | 84°F 1994 | 21°F 1964 | 30% | 1% |
| Apr 18 | 63°F | 40°F | 89°F 1994 | 21°F 1968 | 30% | 1% |
| Apr 19 | 63°F | 40°F | 83°F 1989 | 22°F 1966 | 30% | 1% |
| Apr 20 | 63°F | 40°F | 89°F 1994 | 20°F 1985 | 29% | 1% |
| Apr 21 | 64°F | 40°F | 87°F 2016 | 23°F 1968 | 29% | 1% |
| Apr 22 | 64°F | 41°F | 91°F 2012 | 24°F 1968 | 29% | 1% |
| Apr 23 | 64°F | 41°F | 91°F 2012 | 25°F 1992 | 29% | 0% |
| Apr 24 | 65°F | 41°F | 91°F 1977 | 22°F 1950 | 29% | 0% |
| Apr 25 | 65°F | 42°F | 92°F 1946 | 26°F 1961 | 29% | 0% |
| Apr 26 | 66°F | 42°F | 85°F 1987 | 24°F 1985 | 29% | 0% |
| Apr 27 | 66°F | 42°F | 92°F 1987 | 26°F 1966 | 29% | 0% |
| Apr 28 | 66°F | 42°F | 88°F 1987 | 29°F 1984 | 28% | 0% |
| Apr 29 | 67°F | 43°F | 89°F 1992 | 27°F 1954 | 28% | 0% |
| Apr 30 | 67°F | 43°F | 90°F 2023 | 25°F 1972 | 28% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- April 1
- sunrise 7:26 AM, sunset 8:12 PM
- April 30
- sunrise 6:38 AM, sunset 8:46 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00024131 (Boise Air Terminal), public domain. Records: NOAA GHCN-Daily, station USW00024131, 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.