Basilemorin / CC0
Boise, ID Weather on April 12
Boise hits 82°F on April 12, 1988 in historic spring warm-up
April 12 in Boise typically brings mild spring weather with highs around 61°F and lows near 37°F, but the day has seen dramatic swings over 55 years of records. The record high of 82°F set in 1988 shows how quickly spring warmth can arrive in the Boise valley, while the record low of 23°F from 1987 demonstrates the lingering frost risk that can catch gardeners off guard. This 59-degree spread between records underscores the variability of Boise's transitional season.
What to Expect on April 12
Planning for April 12th in Boise, ID? Great weather for outdoor activities.
Frequently Asked Questions
What was the warmest April 12 ever in Boise?
The warmest April 12 in Boise, ID reached 82°F in 1988. That is 21°F above the long-term average high of 61°F.
What was the coldest April 12 ever in Boise?
The coldest April 12 in Boise, ID dropped to 23°F in 1987. That is 14°F below the long-term average low of 37°F.
What is the average temperature on April 12 in Boise?
On April 12, Boise averages a high of 61°F and a low of 37°F based on 55 years of NOAA weather observations from BOISE AIR TERMINAL.
How many years of weather data are available for April 12 in Boise?
We have 55 years of weather records for April 12 in Boise, ID, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
April 12 Weather History in Boise
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 58°F | 42°F | 0" | -- |
| 2024 | 79°F | 54°F | 0.03" | -- |
| 2023 | 50°F | 34°F | 0" | -- |
| 2022 | 45°F | 30°F | 0.08" | 0.4" |
| 2021 | 57°F | 26°F | 0" | -- |
| 2020 | 54°F | 33°F | 0" | -- |
| 2019 | 59°F | 35°F | 0.05" | -- |
| 2018 | 52°F | 33°F | 0.48" | 0.2" |
| 2017 | 72°F | 43°F | 0" | -- |
| 2016 | 70°F | 51°F | 0.05" | -- |
| 2015 | 55°F | 32°F | 0" | -- |
| 2014 | 63°F | 41°F | 0" | -- |
| 2013 | 62°F | 30°F | 0" | -- |
| 2012 | 61°F | 43°F | 0.41" | -- |
| 2011 | 59°F | 33°F | 0" | -- |
| 2010 | 51°F | 37°F | 0.51" | -- |
| 2009 | 64°F | 35°F | 0" | -- |
| 2008 | 69°F | 36°F | 0" | -- |
| 2007 | 59°F | 41°F | 0" | -- |
| 2006 | 68°F | 39°F | 0" | -- |
| 2005 | 67°F | 41°F | 0" | -- |
| 2004 | 77°F | 42°F | 0" | -- |
| 2003 | 66°F | 46°F | 0" | -- |
| 2002 | 66°F | 47°F | 0" | -- |
| 2001 | 48°F | 34°F | 0.03" | -- |
| 2000 | 75°F | 46°F | 0" | -- |
| 1999 | 66°F | 34°F | 0" | -- |
| 1998 | 50°F | 35°F | 0" | -- |
| 1997 | 55°F | 27°F | 0" | -- |
| 1996 | 54°F | 39°F | 0.13" | -- |
| 1995 | 67°F | 41°F | 0" | -- |
| 1994 | 67°F | 44°F | 0" | -- |
| 1993 | 54°F | 31°F | 0" | -- |
| 1992 | 65°F | 47°F | 0" | -- |
| 1991 | 62°F | 34°F | 0" | -- |
| 1990 | 64°F | 42°F | 0" | -- |
| 1989 | 69°F | 34°F | 0" | -- |
| 1988 | 82°F | 41°F | 0" | -- |
| 1987 | 53°F | 23°F | 0" | -- |
| 1986 | 50°F | 36°F | 0.51" | -- |
| 1985 | 70°F | 39°F | 0" | -- |
| 1984 | 55°F | 35°F | 0.08" | -- |
| 1983 | 53°F | 28°F | 0" | -- |
| 1982 | 57°F | 44°F | 0.1" | -- |
| 1981 | 58°F | 35°F | 0" | -- |
| 1980 | 64°F | 32°F | 0" | -- |
| 1979 | 54°F | 28°F | 0.03" | -- |
| 1978 | 57°F | 25°F | 0" | -- |
| 1977 | 67°F | 28°F | 0" | -- |
| 1976 | 51°F | 39°F | 0.18" | -- |
| 1975 | 65°F | 32°F | 0" | -- |
| 1974 | 49°F | 31°F | 0.03" | -- |
| 1973 | 72°F | 49°F | 0" | -- |
| 1972 | 49°F | 34°F | 0.36" | 1.4" |
| 1971 | 54°F | 31°F | 0" | -- |
Based on 55 years of data from NOAA station: BOISE AIR TERMINAL
How Has April 12 Changed?
The last decade has been 2.1°F cooler on this date compared to 20-30 years ago.
Monthly Climate Averages
Historical temperature and precipitation averages for Boise, ID, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.