Jacksonville, FL climate: monthly averages and frost dates
Jacksonville, FL has mild winters and hot summers by this site's scale, with wet annual precipitation. The figures are the 1991–2020 climate normals for NOAA station USW00013889 (JACKSONVILLE), 11 mi (17 km) in a straight line from the city's center point (US Census).
- Warmest month high
- 91.9°F
- July
- Coldest month mean
- 54.2°F
- January
- Precipitation
- 53.4 in
- per year
- Snowfall
- 0.0 in
- per year
- Median last frost
- February 25
- 32°F, spring
- Median first frost
- December 7
- 32°F, autumn
Monthly averages in Jacksonville
| Month | High °F | Low °F | Mean °F | Precip. in | Snow in | Days ≥0.01 in | Days ≥90°F | Nights ≤32°F |
|---|---|---|---|---|---|---|---|---|
| January | 65.5 | 42.9 | 54.2 | 3.28 | 0.0 | 7.7 | 0.0 | 6.2 |
| February | 68.9 | 46.1 | 57.5 | 2.86 | 0.0 | 7.7 | 0.0 | 2.7 |
| March | 74.3 | 50.6 | 62.4 | 3.29 | 0.0 | 8.0 | 0.2 | 1.0 |
| April | 79.8 | 56.4 | 68.1 | 2.93 | 0.0 | 6.0 | 1.3 | 0.0 |
| May | 85.9 | 63.9 | 74.9 | 3.42 | 0.0 | 7.0 | 8.4 | 0.0 |
| June | 89.9 | 70.7 | 80.3 | 7.60 | 0.0 | 14.1 | 16.2 | 0.0 |
| July | 91.9 | 73.2 | 82.5 | 6.77 | 0.0 | 13.6 | 23.6 | 0.0 |
| August | 90.8 | 73.4 | 82.1 | 6.88 | 0.0 | 15.1 | 20.3 | 0.0 |
| September | 87.2 | 70.5 | 78.8 | 7.56 | 0.0 | 12.4 | 9.0 | 0.0 |
| October | 80.9 | 61.5 | 71.2 | 4.03 | 0.0 | 8.0 | 1.1 | 0.0 |
| November | 73.2 | 51.3 | 62.3 | 2.00 | 0.0 | 6.6 | 0.0 | 0.8 |
| December | 67.5 | 45.8 | 56.7 | 2.78 | 0.0 | 7.7 | 0.0 | 3.6 |
| Year | 79.7 | 58.9 | 69.3 | 53.40 | 0.0 | 113.9 | 80.1 | 14.3 |
How cold is winter in Jacksonville?
Winters in Jacksonville are mild by this site's scale (coldest-month mean 45 to under 60°F). The coldest month is January, with a mean temperature of 54.2°F (12.3°C), a normal daily high of 65.5°F (18.6°C) and a normal daily low of 42.9°F (6.1°C).
The station averages 14.3 nights a year at or below 32°F.
How hot is summer in Jacksonville?
Summers in Jacksonville are hot by this site's scale (hottest-month high 90 to under 100°F). July has the highest normal daily high, 91.9°F (33.3°C), with nights averaging 73.2°F (22.9°C).
The high reaches 90°F or more on 80.1 days in a normal year.
The normal daily high itself is 90°F or above in July and August.
What is the wettest month in Jacksonville?
Jacksonville gets 53.40 in (1356 mm) of precipitation in a normal year, which this site classes as wet (40 to under 60 in a year). The wettest month is June with 7.60 in (193 mm); the driest is November with 2.00 in (51 mm).
Measurable precipitation (0.01 in or more) falls on 113.9 days a year.
Does it snow in Jacksonville?
Snow is rare in Jacksonville: the normal annual snowfall is 0.0 in (0 cm).
Which months are mild in Jacksonville?
6 months in Jacksonville meet this site's comfort thresholds (normal high 65–85°F, low 45°F or higher, fewer than 10 days with 0.10 in or more of precipitation): February to April and October to December.
May misses by one threshold only (normal high 85.9°F, above the 85°F limit).
Thresholds and their limits: methodology.
Frost dates and growing season in Jacksonville
In Jacksonville the median last spring night at or below 32°F is February 25, and the median first autumn one is December 7 (NOAA P50 dates). NOAA's median length of the freeze-free season is 288 days. NOAA takes that median over each year's own season, so it need not equal the 285 days between the two median dates.
There is still a 10% chance of a 32°F night on or after March 19, and a 10% chance that the first one has come by November 17.
The chance that the last spring 32°F night comes on or after January 22 is 90%.
For a hard freeze (28°F or lower) the median dates are February 4 in spring and January 2 in autumn.
| Chance | Last spring 32°F night on or after | First autumn 32°F night by | Freeze-free season, days |
|---|---|---|---|
| 10% | March 19 | November 17 | 326 |
| 20% | March 12 | November 23 | 312 |
| 30% | March 7 | November 29 | 303 |
| 40% | March 2 | December 3 | 295 |
| 50% | February 25 | December 7 | 288 |
| 60% | February 19 | December 12 | 282 |
| 70% | February 13 | December 22 | 274 |
| 80% | February 4 | January 1 | 266 |
| 90% | January 22 | January 10 | 256 |
| Threshold | Median last date (spring) | Median first date (autumn or winter) | Median season, days |
|---|---|---|---|
| 36°F | March 13 | November 22 | 256 |
| 32°F | February 25 | December 7 | 288 |
| 28°F | February 4 | January 2 | 325 |
| 24°F | No such night in most years, though a few years have one; no typical season to show | ||
| 20°F | No such night in most years, though a few years have one; no typical season to show | ||
| 16°F | No such night in a typical year (NOAA publishes no dates) | ||
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 86% | 69% | 42% | 1% | 0% | 0% | 0% | 0% | 0% | 0% | 33% | 67% |
Nearby and similar places
Of the places on this site, the closest to Jacksonville by station distance are Tampa, FL at 181 mi (292 km), Atlanta, GA at 270 mi (435 km) and Charlotte, NC at 330 mi (532 km).
Among places whose winter, summer and precipitation words are each within one band of Jacksonville's (winter: mild, summer: hot, precipitation: wet), the closest monthly temperature and precipitation patterns are Tampa, FL, New Orleans, LA and Houston, TX.
Compared with Tampa, FL, Jacksonville's peak-month normal high is 0.7°F (0.4°C) higher, its coldest-month mean is 7.8°F (4.3°C) lower, and its annual precipitation is 3.92 in more.
| Place | Listed as | Station distance | Coldest mean °F | Warmest high °F | Precip. in/yr | Snow in/yr | Last frost |
|---|---|---|---|---|---|---|---|
| Jacksonville, FL | this page | – | 54.2 | 91.9 | 53.4 | 0.0 | February 25 |
| Tampa, FL | nearby, similar | 181 mi (292 km) | 62.0 | 91.2 | 49.5 | 0.0 | rare freeze |
| Atlanta, GA | nearby | 270 mi (435 km) | 44.8 | 90.1 | 50.4 | 2.2 | March 15 |
| Charlotte, NC | nearby | 330 mi (532 km) | 42.1 | 90.3 | 43.6 | 3.5 | March 30 |
| New Orleans, LA | similar | 511 mi (823 km) | 54.3 | 91.4 | 63.4 | 0.0 | January 30 |
| Houston, TX | similar | 816 mi (1,313 km) | 53.8 | 94.9 | 51.8 | 0.1 | February 13 |
How nearby and similar places are chosen: methodology.
Source and station
The data for Jacksonville come from NOAA station JACKSONVILLE, FL US (USW00013889) at 30.4844, -81.7019, elevation 33 ft (10 m). It lies 11 mi (17 km) in a straight line from the center point of Jacksonville city, the “internal point” in the US Census 2024 Gazetteer.
Each monthly normal used here rests on at least 16 years of data from 1991–2020 (NOAA's per-field year counts).
NOAA completeness flags on the monthly fields used here:
- P: Provisional: meets WMO standards for data availability for 10 or more years (missing months cannot be filled).
- S: Standard: meets WMO standards for data availability for 24 or more years.
Cite the data as:
Palecki, Michael; Durre, Imke; Applequist, Scott; Arguez, Anthony; Lawrimore, Jay (2021). U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991-2020). Station USW00013889 (JACKSONVILLE, FL US). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/wck8-er13. Accessed 2026-10-09.
Palecki, Michael; Durre, Imke; Applequist, Scott; Arguez, Anthony; Lawrimore, Jay (2021). U.S. Climate Normals 2020: U.S. Annual/Seasonal Climate Normals (1991-2020). Station USW00013889 (JACKSONVILLE, FL US). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/4ek7-fk11. Accessed 2026-10-09.
Files used: monthly normals CSV, annual/seasonal normals CSV (retrieved 2026-10-09). The values on this page as JSON: /us/fl/jacksonville/data.json.