April weather in Heron Lake, MN
The average temperature in Heron Lake in April is 43.7°F (32.5°F–54.9°F). Average precipitation: 3.03 inches. Average snowfall is 5.4 inches.
April is a spring month in Heron Lake, and is cooler than the annual average of 44°F. Daily temperatures swing about 22.4°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 13h 13m. For travel, April is cool.
Avg High
54.9°F
Avg Low
32.5°F
Precipitation
3.03 in
Snow
5.4 in
April records in Heron Lake
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| April 1 | 73.9°F (2010) | 14.0°F (2018) | 0.60 in (2007) |
| April 2 | 82.0°F (2015) | 12.9°F (2018) | 0.94 in (2006) |
| April 3 | 82.0°F (2012) | 18.0°F (2002) | 0.64 in (2025) |
| April 4 | 75.0°F (2016) | 3.9°F (2018) | 0.49 in (2014) |
| April 5 | 80.1°F (2021) | 5.0°F (2018) | 0.23 in (2009) |
| April 6 | 82.0°F (2021) | 12.9°F (2007) | 1.11 in (1999) |
| April 7 | 75.9°F (2021) | 10.0°F (2007) | 2.23 in (2006) |
| April 8 | 73.9°F (2004) | 6.1°F (1997) | 0.54 in (1998) |
| April 9 | 75.9°F (2017) | 6.1°F (1997) | 1.44 in (1999) |
| April 10 | 75.9°F (2005) | 10.9°F (1997) | 0.36 in (2011) |
| April 11 | 77.0°F (2006) | 15.1°F (1997) | 1.56 in (2001) |
| April 12 | 81.0°F (2023) | 16.0°F (1997) | 1.37 in (2001) |
| April 13 | 84.9°F (2023) | 14.0°F (2020) | 0.48 in (2012) |
| April 14 | 86.0°F (2023) | 12.9°F (2020) | 1.03 in (2018) |
| April 15 | 78.1°F (2002) | 12.0°F (2020) | 0.86 in (2018) |
| April 16 | 90.0°F (2002) | 14.0°F (2014) | 0.68 in (2006) |
| April 17 | 82.9°F (2002) | 15.1°F (2018) | 0.77 in (2024) |
| April 18 | 81.0°F (2025) | 17.1°F (2018) | 0.75 in (2025) |
| April 19 | 87.1°F (2004) | 17.1°F (2018) | 0.78 in (2000) |
| April 20 | 73.9°F (2014) | 16.0°F (2013) | 0.80 in (2023) |
| April 21 | 79.0°F (2019) | 17.1°F (2013) | 1.01 in (2001) |
| April 22 | 82.9°F (2007) | 27.0°F (2015) | 0.39 in (2012) |
| April 23 | 79.0°F (2000) | 19.9°F (2013) | 1.41 in (2001) |
| April 24 | 87.1°F (2009) | 19.9°F (2013) | 0.55 in (2014) |
| April 25 | 82.9°F (2012) | 24.1°F (2013) | 1.16 in (2016) |
| April 26 | 84.9°F (2012) | 21.9°F (2022) | 0.52 in (2011) |
| April 27 | 75.9°F (2001) | 24.1°F (2022) | 1.69 in (2008) |
| April 28 | 75.9°F (2001) | 24.1°F (2005) | 1.20 in (2021) |
| April 29 | 90.0°F (2004) | 27.0°F (2005) | 1.33 in (2024) |
| April 30 | 89.1°F (2007) | 25.0°F (2005) | 1.45 in (2006) |