St. Petersburg weather in December: St. Petersburg, Florida: normal highs, lows, rain and records for December
St. Petersburg in December has a normal high of 73°F and a normal low of 56°F, a daily mean of 64°F, falling from 75°F on the 1st to 71°F by the 31st. Measurable precipitation falls on 8 days in a normal December, 2.94 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 23°C and low of 13°C, 75 mm of precipitation in December.
- NOAA stationSt Petersburg International Airport
- Station IDUSW00012873
- Location27.91°N 82.69°W
- Elevation11 ft (3 m)
- From the center11 miles
- Population267,102
- Jan 71° 53°
- Feb 73° 55°
- Mar 77° 59°
- Apr 82° 64°
- May 87° 70°
- Jun 90° 75°
- Jul 90° 76°
- Aug 91° 76°
- Sep 89° 75°
- Oct 84° 70°
- Nov 77° 61°
- Dec 73° 56°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is St. Petersburg in December?
The normal high is 73°F and the normal low 56°F, for a daily mean of 64.4°F. December is 4.6°F cooler than November and 2.8°F warmer than January. December is the 10th warmest month of the year in St. Petersburg and the 5th wettest. Across the month the normal high falls 4°F, from 75°F on December 1 to 71°F on December 31. From one year to the next December's mean temperature typically moves about 3.9°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 61°F and 68°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 28%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 75°F | 58°F | 21% | 10% |
| December 8 | 74°F | 57°F | 23% | 11% |
| December 15 | 73°F | 56°F | 25% | 12% |
| December 22 | 72°F | 55°F | 26% | 12% |
| December 31 | 71°F | 54°F | 28% | 12% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 75°F | 58°F | 21% | 10% | 10 h 30 min |
| December 2 | 75°F | 58°F | 21% | 10% | 10 h 30 min |
| December 3 | 74°F | 58°F | 21% | 10% | 10 h 30 min |
| December 4 | 74°F | 58°F | 22% | 10% | 10 h 30 min |
| December 5 | 74°F | 58°F | 22% | 10% | 10 h 30 min |
| December 6 | 74°F | 58°F | 22% | 11% | 10 h 30 min |
| December 7 | 74°F | 57°F | 23% | 11% | 10 h 30 min |
| December 8 | 74°F | 57°F | 23% | 11% | 10 h 30 min |
| December 9 | 74°F | 57°F | 23% | 11% | 10 h 30 min |
| December 10 | 74°F | 57°F | 24% | 11% | 10 h 30 min |
| December 11 | 73°F | 57°F | 24% | 11% | 10 h 20 min |
| December 12 | 73°F | 57°F | 24% | 11% | 10 h 20 min |
| December 13 | 73°F | 57°F | 24% | 11% | 10 h 20 min |
| December 14 | 73°F | 56°F | 25% | 12% | 10 h 20 min |
| December 15 | 73°F | 56°F | 25% | 12% | 10 h 20 min |
| December 16 | 73°F | 56°F | 25% | 12% | 10 h 20 min |
| December 17 | 73°F | 56°F | 25% | 12% | 10 h 20 min |
| December 18 | 73°F | 56°F | 25% | 12% | 10 h 20 min |
| December 19 | 72°F | 56°F | 25% | 12% | 10 h 20 min |
| December 20 | 72°F | 56°F | 26% | 12% | 10 h 20 min |
| December 21 | 72°F | 55°F | 26% | 12% | 10 h 20 min |
| December 22 | 72°F | 55°F | 26% | 12% | 10 h 20 min |
| December 23 | 72°F | 55°F | 26% | 12% | 10 h 20 min |
| December 24 | 72°F | 55°F | 26% | 12% | 10 h 20 min |
| December 25 | 72°F | 55°F | 26% | 12% | 10 h 20 min |
| December 26 | 72°F | 55°F | 27% | 12% | 10 h 20 min |
| December 27 | 72°F | 54°F | 27% | 12% | 10 h 20 min |
| December 28 | 71°F | 54°F | 27% | 12% | 10 h 20 min |
| December 29 | 71°F | 54°F | 27% | 12% | 10 h 20 min |
| December 30 | 71°F | 54°F | 27% | 12% | 10 h 20 min |
| December 31 | 71°F | 54°F | 28% | 12% | 10 h 20 min |
- Normal high
- 73°FDecember average
- Normal low
- 56°FDecember average
- Precipitation
- 2.94 inmonth total
- Days with precipitation
- 80.01 inch or more
- Daylight
- 10 h 30 min to 10 h 20 minDecember 1 to December 31
- Days at 70°F or more
- 22
- Days at 80°F or more
- 9
- Sunshine
- 81%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00012873; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in St. Petersburg in December?
On a given December day the chance of 0.01 inch or more is 25% on average, highest around December 31 (28%). In all, 2.94 in falls on 8 days of a normal December, 1 of them with an inch or more.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00012873.
How humid and windy is St. Petersburg in December?
At 3 p.m. the normal temperature is 69°F with 60% relative humidity and a dew point of 55°F; at 6 a.m. it is 58°F with 85% humidity. The wind averages 8.7 mph, most often from the northwest in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 58°F | 54°F | 85% | 7.9 mph | 61% |
| 9 a.m. | 60°F | 54°F | 81% | 8.7 mph | 56% |
| noon | 67°F | 55°F | 66% | 10.4 mph | 62% |
| 3 p.m. | 69°F | 55°F | 60% | 10.4 mph | 59% |
| 6 p.m. | 64°F | 55°F | 73% | 8.6 mph | 67% |
| 9 p.m. | 61°F | 55°F | 80% | 7.7 mph | 70% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00012873. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for December in St. Petersburg?
The warmest December temperature on this station's record (since 1998) is 86°F, on December 30, 2015; the coldest is 30°F, on December 29, 2010. The wettest December brought 16.69 in (2002).
The December mean against the 1991-2020 normal of 64.4°F: 2021 69.8°F (+5.4), 2022 64.7°F (+0.3), 2023 64.8°F (+0.4), 2025 66.8°F (+2.4). 4 of 4 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 69.8°F | +5.4°F | 0.96 in |
| 2022 | 64.7°F | +0.3°F | 2.02 in |
| 2023 | 64.8°F | +0.4°F | 2.80 in |
| 2025 | 66.8°F | +2.4°F | 3.22 in |
Source: records: ACIS, station USW00012873; recent months: ACIS, station USW00012873. Records and recent months use complete months only.
How does December in St. Petersburg compare across Florida?
Across the 106 places PlainClimate covers in Florida, December normal highs run from 63°F in Milton to 80°F in Everglades; St. Petersburg's is 73°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- St. Petersburg in November77°F by day, 61°F at night
- St. Petersburg in January71°F by day, 53°F at night
- St. Petersburg through the yearEvery month, frost dates, records and recent years
- Florida in DecemberThe statewide normal and the warmest and coolest places
- Everglades: Florida's warmest Decembernormal high 80°F