April weather in New Boston, IL
The average temperature in New Boston in April is 51.2°F (40.4°F–61.9°F). Average precipitation: 3.56 inches.
April is a spring month in New Boston, and is cooler than the annual average of 51.2°F. Daily temperatures swing about 21.5°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 13h 7m. For travel, April is a comfortable month to visit.
Avg High
61.9°F
Avg Low
40.4°F
Precipitation
3.56 in
Daylight
13h 7m
April records in New Boston
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| April 1 | 79.0°F (1946) | 23.0°F (2018) | 2.05 in (1967) |
| April 2 | 84.9°F (2012) | 19.0°F (2018) | 1.53 in (1983) |
| April 3 | 82.0°F (2012) | 19.0°F (2018) | 1.49 in (1957) |
| April 4 | 82.0°F (2003) | 21.9°F (2018) | 0.96 in (1950) |
| April 5 | 80.1°F (2005) | 19.9°F (2018) | 2.08 in (1947) |
| April 6 | 78.1°F (2000) | 23.0°F (2007) | 1.78 in (1938) |
| April 7 | 79.0°F (2010) | 17.1°F (2018) | 0.63 in (1938) |
| April 8 | 78.1°F (1999) | 17.1°F (2018) | 1.01 in (2021) |
| April 9 | 82.0°F (2001) | 19.9°F (2018) | 1.33 in (1973) |
| April 10 | 80.1°F (2011) | 25.0°F (2016) | 1.15 in (1943) |
| April 11 | 82.9°F (2005) | 28.0°F (2003) | 2.20 in (2021) |
| April 12 | 80.1°F (1941) | 23.0°F (1940) | 1.50 in (1981) |
| April 13 | 81.0°F (1941) | 28.9°F (2004) | 1.10 in (1955) |
| April 14 | 84.9°F (2006) | 28.9°F (2004) | 1.73 in (1960) |
| April 15 | 84.0°F (2003) | 27.0°F (2020) | 1.36 in (1949) |
| April 16 | 87.1°F (2002) | 26.1°F (2020) | 1.56 in (1999) |
| April 17 | 86.0°F (2004) | 28.0°F (2018) | 1.70 in (2024) |
| April 18 | 88.0°F (2002) | 28.9°F (2022) | 2.77 in (2013) |
| April 19 | 88.0°F (2002) | 30.9°F (2022) | 0.90 in (1963) |
| April 20 | 80.1°F (2015) | 28.0°F (2018) | 2.30 in (1964) |
| April 21 | 81.0°F (2005) | 28.0°F (2018) | 2.46 in (1973) |
| April 22 | 80.1°F (2014) | 32.0°F (2011) | 3.04 in (1973) |
| April 23 | 82.0°F (2007) | 33.1°F (2012) | 1.73 in (1989) |
| April 24 | 82.0°F (2022) | 28.9°F (2023) | 3.34 in (1976) |
| April 25 | 82.0°F (2025) | 30.9°F (2023) | 2.06 in (1950) |
| April 26 | 84.9°F (1938) | 30.0°F (2023) | 1.03 in (2009) |
| April 27 | 84.9°F (1938) | 30.0°F (1946) | 1.49 in (1943) |
| April 28 | 84.0°F (2021) | 33.1°F (2023) | 2.05 in (2002) |
| April 29 | 84.9°F (1942) | 33.1°F (2019) | 2.25 in (2019) |
| April 30 | 87.1°F (2007) | 33.1°F (2008) | 1.70 in (2017) |