December weather in Port St. Lucie, FL
The average temperature in Port St. Lucie in December is °F (°F–°F). Average precipitation: 2.61 inches.
December is a winter month in Port St. Lucie, and is cooler than the annual average of 0°F. Daylight averages about 10h 17m.
Avg High
°F
Avg Low
°F
Precipitation
2.61 in
Daylight
10h 17m
December records in Port St. Lucie
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 86.0°F (2016) | 30.0°F (2005) | 0.55 in (2015) |
| December 2 | 82.9°F (2006) | 33.1°F (2005) | 0.15 in (2014) |
| December 3 | 86.0°F (2018) | 33.1°F (2005) | 0.60 in (2015) |
| December 4 | 86.0°F (2018) | 41.0°F (2008) | 3.55 in (2009) |
| December 5 | 84.0°F (2002) | 36.0°F (2005) | 0.60 in (2014) |
| December 6 | 87.1°F (2016) | 42.1°F (2005) | 0.50 in (2013) |
| December 7 | 86.0°F (2016) | 43.0°F (2008) | 1.72 in (2009) |
| December 8 | 84.0°F (2025) | 37.9°F (2003) | 2.05 in (2005) |
| December 9 | 82.9°F (2017) | 44.1°F (2003) | 0.20 in (2015) |
| December 10 | 84.9°F (2009) | 41.0°F (2017) | 1.83 in (2002) |
| December 11 | 84.9°F (2009) | 37.9°F (2017) | 0.25 in (2009) |
| December 12 | 84.9°F (2012) | 36.0°F (2017) | 0.43 in (2008) |
| December 13 | 84.0°F (2000) | 37.0°F (2004) | 1.57 in (2019) |
| December 14 | 84.0°F (2016) | 36.0°F (2017) | 2.05 in (2007) |
| December 15 | 82.0°F (2015) | 37.0°F (2003) | 0.50 in (2021) |
| December 16 | 84.9°F (2015) | 28.9°F (2002) | 0.62 in (2002) |
| December 17 | 84.9°F (2015) | 30.9°F (2002) | 0.52 in (2024) |
| December 18 | 87.1°F (2016) | 30.0°F (2003) | 4.57 in (2024) |
| December 19 | 86.0°F (2015) | 35.1°F (2003) | 0.04 in (2005) |
| December 20 | 84.9°F (2002) | 30.0°F (2000) | 1.06 in (1999) |
| December 21 | 82.0°F (2018) | 32.0°F (2000) | 0.99 in (2018) |
| December 22 | 81.0°F (2017) | 30.0°F (2003) | 0.05 in (2021) |
| December 23 | 82.0°F (2015) | 35.1°F (2012) | 0.78 in (2002) |
| December 24 | 84.0°F (2013) | 41.0°F (2012) | 0.21 in (2003) |
| December 25 | 82.9°F (2015) | 45.0°F (2009) | 0.00 in (1999) |
| December 26 | 84.0°F (2015) | 39.9°F (2002) | 2.02 in (2002) |
| December 27 | 82.9°F (2015) | 32.0°F (2001) | 0.91 in (2004) |
| December 28 | 82.0°F (2016) | 42.1°F (2012) | 0.40 in (2009) |
| December 29 | 82.0°F (2012) | 39.0°F (1999) | 0.30 in (1998) |
| December 30 | 84.0°F (2015) | 30.0°F (2002) | 0.15 in (2005) |
| December 31 | 84.9°F (2015) | 36.0°F (2002) | 0.02 in (2024) |