Boise County Weather in April
Average highs run from 52°F on April 1 to 61°F on April 30, and lows from 25°F to 30°F. Normal precipitation for the month is 1.59 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
- 56°F
- Average low
- 28°F
- Precipitation
- 1.59 in
- Snowfall
- 4.4 in
- Record high
- 92°FApr 25, 1946
- Record low
- 19°FApr 13, 1968
- Chance of a freeze
- 100%
- Daylight
- 12 h 46 min to 14 h 09 min
- Cloud cover
- 67%
- Humidity
- 74%
- Dew point
- 28°F
- Wind
- 4.5 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 | 52°F | 25°F | 82°F 1966 | 20°F 1975 | 32% | 17% |
| Apr 2 | 52°F | 25°F | 79°F 1943 | 20°F 1976 | 32% | 17% |
| Apr 3 | 52°F | 26°F | 79°F 1987 | 21°F 1955 | 32% | 16% |
| Apr 4 | 52°F | 26°F | 79°F 2000 | 25°F 1950 | 32% | 16% |
| Apr 5 | 53°F | 26°F | 80°F 1960 | 21°F 1997 | 32% | 16% |
| Apr 6 | 53°F | 26°F | 78°F 1988 | 23°F 1982 | 32% | 15% |
| Apr 7 | 53°F | 26°F | 79°F 1977 | 23°F 1984 | 32% | 15% |
| Apr 8 | 53°F | 26°F | 82°F 1996 | 22°F 1953 | 32% | 15% |
| Apr 9 | 54°F | 26°F | 78°F 2016 | 23°F 1987 | 32% | 14% |
| Apr 10 | 54°F | 27°F | 82°F 2023 | 24°F 1945 | 32% | 14% |
| Apr 11 | 54°F | 27°F | 80°F 1949 | 23°F 1953 | 32% | 13% |
| Apr 12 | 55°F | 27°F | 82°F 1988 | 23°F 1970 | 32% | 13% |
| Apr 13 | 55°F | 27°F | 81°F 2024 | 19°F 1968 | 32% | 12% |
| Apr 14 | 55°F | 27°F | 86°F 1962 | 25°F 1945 | 32% | 12% |
| Apr 15 | 56°F | 27°F | 85°F 1990 | 21°F 1995 | 32% | 11% |
| Apr 16 | 56°F | 27°F | 85°F 1994 | 20°F 1960 | 32% | 11% |
| Apr 17 | 56°F | 28°F | 84°F 1994 | 21°F 1964 | 32% | 10% |
| Apr 18 | 57°F | 28°F | 89°F 1994 | 21°F 1968 | 32% | 10% |
| Apr 19 | 57°F | 28°F | 83°F 1989 | 22°F 1966 | 32% | 9% |
| Apr 20 | 57°F | 28°F | 89°F 1994 | 20°F 1985 | 32% | 9% |
| Apr 21 | 58°F | 28°F | 87°F 2016 | 23°F 1968 | 32% | 8% |
| Apr 22 | 58°F | 29°F | 91°F 2012 | 24°F 1968 | 31% | 8% |
| Apr 23 | 59°F | 29°F | 91°F 2012 | 25°F 1992 | 31% | 7% |
| Apr 24 | 59°F | 29°F | 91°F 1977 | 22°F 1950 | 31% | 7% |
| Apr 25 | 59°F | 29°F | 92°F 1946 | 26°F 1961 | 31% | 7% |
| Apr 26 | 60°F | 29°F | 85°F 1987 | 24°F 1985 | 31% | 6% |
| Apr 27 | 60°F | 30°F | 92°F 1987 | 26°F 1966 | 31% | 6% |
| Apr 28 | 60°F | 30°F | 88°F 1987 | 29°F 1984 | 31% | 6% |
| Apr 29 | 61°F | 30°F | 89°F 1992 | 27°F 1954 | 30% | 5% |
| Apr 30 | 61°F | 30°F | 90°F 2023 | 25°F 1972 | 30% | 5% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- April 1
- sunrise 7:24 AM, sunset 8:10 PM
- April 30
- sunrise 6:36 AM, sunset 8:45 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00104442 (Idaho City), 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.