August weather in Guymon, OK
The average temperature in Guymon in August is 78.5°F (64.8°F–92.1°F). Average precipitation: 2.58 inches.
August is a summer month in Guymon, and is warmer than the annual average of 57.6°F. Daily temperatures swing about 27.3°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 13h 24m. For travel, August is hot.
Avg High
92.1°F
Avg Low
64.8°F
Precipitation
2.58 in
Daylight
13h 24m
August records in Guymon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 106.0°F (2012) | 57.9°F (2000) | 0.29 in (2015) |
| August 2 | 104.0°F (2010) | 59.0°F (2009) | 2.03 in (2015) |
| August 3 | 106.0°F (2000) | 55.9°F (2014) | 0.52 in (1999) |
| August 4 | 104.0°F (2000) | 59.0°F (2017) | 0.43 in (2011) |
| August 5 | 105.1°F (2000) | 57.9°F (2021) | 0.90 in (2011) |
| August 6 | 106.0°F (2025) | 59.0°F (2021) | 0.66 in (2004) |
| August 7 | 107.1°F (2003) | 63.0°F (2017) | 1.51 in (2013) |
| August 8 | 109.0°F (2025) | 57.0°F (2017) | 0.40 in (2003) |
| August 9 | 105.1°F (2021) | 55.9°F (2024) | 1.10 in (2020) |
| August 10 | 105.1°F (2021) | 55.9°F (2024) | 1.39 in (2002) |
| August 11 | 106.0°F (2012) | 57.0°F (2004) | 0.87 in (2025) |
| August 12 | 104.0°F (2007) | 57.9°F (2004) | 1.10 in (2023) |
| August 13 | 102.9°F (2000) | 55.0°F (2004) | 0.82 in (2006) |
| August 14 | 105.1°F (2010) | 55.0°F (1999) | 0.75 in (2013) |
| August 15 | 102.0°F (2000) | 54.0°F (2016) | 0.57 in (2008) |
| August 16 | 104.0°F (2019) | 57.0°F (2016) | 1.17 in (2010) |
| August 17 | 105.1°F (2019) | 57.0°F (2021) | 1.62 in (2015) |
| August 18 | 104.0°F (2024) | 57.9°F (2002) | 2.35 in (2008) |
| August 19 | 107.1°F (2019) | 57.0°F (2004) | 1.48 in (2002) |
| August 20 | 105.1°F (2007) | 55.9°F (2004) | 0.91 in (2006) |
| August 21 | 102.9°F (2003) | 52.0°F (2018) | 3.02 in (2019) |
| August 22 | 104.0°F (2024) | 57.9°F (2022) | 1.00 in (2005) |
| August 23 | 104.0°F (2021) | 55.0°F (2022) | 0.71 in (2010) |
| August 24 | 107.1°F (2021) | 55.9°F (2022) | 1.29 in (2025) |
| August 25 | 104.0°F (2024) | 53.1°F (2010) | 0.54 in (2025) |
| August 26 | 104.0°F (2000) | 50.0°F (2010) | 0.46 in (2016) |
| August 27 | 102.9°F (2018) | 53.1°F (2010) | 0.86 in (2025) |
| August 28 | 106.0°F (2020) | 55.0°F (2009) | 0.99 in (2002) |
| August 29 | 100.0°F (1999) | 51.1°F (2017) | 0.32 in (1999) |
| August 30 | 104.0°F (2013) | 52.0°F (2017) | 0.79 in (2003) |
| August 31 | 105.1°F (2011) | 50.0°F (2017) | 0.02 in (2009) |