July weather in Letcher, SD
The average temperature in Letcher in July is 75.3°F (63.9°F–86.7°F). Average precipitation: 2.36 inches.
July is a summer month in Letcher, and is warmer than the annual average of 47.7°F. Daily temperatures swing about 22.8°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 14h 58m. For travel, July is a comfortable month to visit.
Avg High
86.7°F
Avg Low
63.9°F
Precipitation
2.36 in
Daylight
14h 58m
July records in Letcher
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 99.0°F (2002) | 48.9°F (2016) | 0.24 in (2001) |
| July 2 | 102.9°F (2012) | 55.0°F (2001) | 0.16 in (2004) |
| July 3 | 99.0°F (2025) | 48.0°F (2008) | 1.37 in (2010) |
| July 4 | 102.0°F (2012) | 57.0°F (2005) | 1.41 in (2023) |
| July 5 | 98.1°F (2017) | 53.1°F (2006) | 1.51 in (2019) |
| July 6 | 98.1°F (2012) | 48.9°F (2023) | 0.43 in (2016) |
| July 7 | 102.9°F (2007) | 48.9°F (2004) | 0.79 in (2023) |
| July 8 | 99.0°F (2000) | 53.1°F (2015) | 0.90 in (2003) |
| July 9 | 100.0°F (2017) | 57.0°F (2015) | 1.98 in (2013) |
| July 10 | 96.1°F (2011) | 57.0°F (2007) | 0.12 in (2010) |
| July 11 | 99.0°F (2017) | 53.1°F (2007) | 0.90 in (2017) |
| July 12 | 97.0°F (2015) | 54.0°F (2002) | 1.25 in (2023) |
| July 13 | 96.1°F (2012) | 53.1°F (2002) | 1.03 in (2009) |
| July 14 | 100.9°F (2006) | 53.1°F (2014) | 0.85 in (2013) |
| July 15 | 108.0°F (2006) | 50.0°F (2014) | 1.21 in (2000) |
| July 16 | 105.1°F (2012) | 46.9°F (2014) | 0.45 in (2022) |
| July 17 | 100.9°F (2011) | 50.0°F (2009) | 0.57 in (2017) |
| July 18 | 102.0°F (2011) | 51.1°F (2006) | 0.32 in (2000) |
| July 19 | 102.0°F (2011) | 54.0°F (2000) | 0.37 in (2024) |
| July 20 | 109.0°F (2002) | 52.0°F (2000) | 0.94 in (2019) |
| July 21 | 97.0°F (2004) | 48.0°F (2000) | 1.78 in (2010) |
| July 22 | 102.0°F (2012) | 55.9°F (2000) | 0.28 in (2010) |
| July 23 | 109.0°F (2005) | 51.1°F (2004) | 0.72 in (2010) |
| July 24 | 104.0°F (2012) | 55.9°F (2004) | 0.57 in (2001) |
| July 25 | 102.0°F (2017) | 50.0°F (2004) | 1.14 in (2017) |
| July 26 | 97.0°F (2011) | 51.1°F (2013) | 1.04 in (2011) |
| July 27 | 99.0°F (2025) | 45.0°F (2013) | 0.27 in (2022) |
| July 28 | 108.0°F (2006) | 43.0°F (2013) | 1.72 in (2019) |
| July 29 | 108.0°F (2006) | 50.0°F (2014) | 3.03 in (2010) |
| July 30 | 106.0°F (2006) | 51.1°F (2014) | 0.94 in (2021) |
| July 31 | 109.0°F (2002) | 55.9°F (2003) | 0.97 in (2006) |