Climateby Month

Port St. Lucie, FL weather in January

NOAA 1991-2020 normals and daily records · Port St. Lucie all year

January in Port St. Lucie: mild, with some rain. Highs 72°F, lows 53°F, about 8 wet days. It is one of the coolest months in Port St. Lucie. A good month for most outdoor plans.

Normal high
72°F
Normal low
53°F
Wet days
8
3.0 in total
Muggy days
8
dew point 65°F+

How January changes from start to finish

Normal values at the start and end of January
January 1January 31
Normal high73°F73°F
Normal low54°F54°F
Chance of a wet day25%24%
Sunrise / sunset7:11 am / 5:38 pm7:07 am / 6:01 pm
Daylight10.4 h10.9 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).

A typical January day

  1. 6 am61°Fdew point 56°F
  2. 9 am66°Fdew point 57°F
  3. Noon72°Fdew point 57°F
  4. 3 pm73°Fdew point 57°F
  5. 6 pm69°Fdew point 58°F
  6. 9 pm66°Fdew point 58°F

NOAA hourly normals (local standard time) from West Palm Beach Intl Airport (45 mi away); average wind 10 mph; clear or few clouds in 53% of daytime hours, mostly cloudy or overcast in 34%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F12 of 31
  • Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph4 of 31
  • Hot dayshigh 90°F or more0 of 31
  • Muggy daysdaily mean dew point 65°F or more8 of 31
  • Wet daysat least 0.01 in of rain or melted snow8 of 31
  • Notable rainat least 0.10 in5 of 31
  • Freezing nightslow 32°F or below1 of 31

Average days per January, counted from daily records for each year 1991-2020.

Rain in January

Normal precipitation is 3.0 in; a dry January brings about 1.1 in and a wet one about 2.8 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.

How January varies from year to year

  • Warmest January, 1991-20201991: average high 79°F
  • Coolest January2010: average high 68°F
  • Wettest January2014: 13.6 in
  • Driest January2012: 0.03 in
  • Highest reading89°F (January 31, 1991)
  • Lowest reading28°F (January 9, 1996)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

January compared with December and February

DecemberJanuaryFebruary
Normal high74°F72°F74°F
Normal low57°F53°F55°F
Wet days887
Comfortable days91210
Daylight10.4 h10.6 h11.2 h

Highs change by -2°F from December and +2°F into February.

Nearby alternatives in January

How Port St. Lucie ranks in January

  • Normal high19th warmest of 378 cities; 10th of 23 in Florida
  • Wet days128th driest of 378
  • Comfortable days60th most of 339

Heating and cooling

January has 136 heating degree days and 65 cooling degree days (base 65°F), 5% of the year's total heating and cooling demand.

Questions

How hot is Port St. Lucie in January?

The normal high is 72°F and the normal low is 53°F. From 1991 to 2020 the hottest January reading was 89°F (January 31, 1991).

Does it rain a lot in Port St. Lucie in January?

About 8 days in January have at least 0.01 in of precipitation, and the normal total is 3.0 in. The wettest January in 1991-2020 was in 2014 (13.6 in); the driest was in 2012 (0.03 in).

Is January a good time to visit Port St. Lucie?

January ranks 2nd of 12 months on our comfort score for Port St. Lucie (61 out of 100). It has about 12 comfortable days. The best months are January, February and March.

Where the numbers come from

  • Temperature, rain, snowfall and snow depth: Ft Pierce (USC00083207), 10 mi N of the city center, 25 ft . NOAA normals and daily records, 1991-2020.
  • Frost dates: Stuart (USC00088620), 9.9 mi SE of the city center, 13 ft . NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour: West Palm Beach Intl Airport (USW00012844), 45 mi SSE of the city center, 19 ft . NOAA normals and daily records, 1991-2020.
  • Cloud cover: Melbourne Intl Airport (USW00012838), 58 mi NNW of the city center, 22 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Palm Beach International Airport (722030-12844), 45 mi SSE of the city center, 11 ft . Hourly observations, 1991-2020.