Gulfport, Mississippi climate: Normal weather by month, frost dates and records
Gulfport's normal year runs from 42°F January nights to 90°F July afternoons, with 62.8 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 20.2°C, January lows of 6°C, July highs of 32°C, 1,596 mm of precipitation a year.
- NOAA stationGulfport - Biloxi Airport
- Station IDUSW00093874
- Location30.41°N 89.08°W
- Elevation42 ft (13 m)
- Population74,621
On October 14, the normal high in Gulfport is 81°F and the normal low 61°F, and the chance of measurable rain or snow is 26%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Gulfport.
- Jan 61° 42°
- Feb 65° 46°
- Mar 70° 52°
- Apr 77° 58°
- May 84° 66°
- Jun 89° 73°
- Jul 90° 75°
- Aug 91° 75°
- Sep 88° 71°
- Oct 80° 60°
- Nov 70° 49°
- Dec 64° 45°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Gulfport each month?
July is the warmest month, with normal highs of 90°F; January the coldest, with normal lows of 42°F. The most precipitation falls in July (7.21 in), the least in October (3.71 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 61°F | 42°F | 51.8°F | 4.87 | 9 | <1 | 7 | 10 h 20 min |
| February | 65°F | 46°F | 55.5°F | 4.44 | 9 | <1 | 3 | 11 h 10 min |
| March | 70°F | 52°F | 61.1°F | 5.22 | 9 | <1 | 1 | 12 h |
| April | 77°F | 58°F | 67.5°F | 5.51 | 8 | <1 | <1 | 12 h 50 min |
| May | 84°F | 66°F | 75.0°F | 4.74 | 7 | 3 | <1 | 13 h 40 min |
| June | 89°F | 73°F | 80.9°F | 6.89 | 12 | 13 | <1 | 14 h 10 min |
| July | 90°F | 75°F | 82.7°F | 7.21 | 13 | 20 | <1 | 14 h |
| August | 91°F | 75°F | 82.6°F | 6.53 | 14 | 21 | <1 | 13 h 20 min |
| September | 88°F | 71°F | 79.2°F | 5.18 | 9 | 11 | <1 | 12 h 20 min |
| October | 80°F | 60°F | 70.0°F | 3.71 | 8 | 1 | <1 | 11 h 30 min |
| November | 70°F | 49°F | 59.6°F | 4.03 | 8 | <1 | 1 | 10 h 40 min |
| December | 64°F | 45°F | 54.0°F | 4.49 | 11 | <1 | 4 | 10 h 10 min |
| Year (annual) | 77°F | 59°F | 68.3°F | 62.82 | 117 | 69 | 16 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 16°C | 6°C | 11.0°C | 124 mm |
| February | 18°C | 8°C | 13.1°C | 113 mm |
| March | 21°C | 11°C | 16.2°C | 133 mm |
| April | 25°C | 15°C | 19.7°C | 140 mm |
| May | 29°C | 19°C | 23.9°C | 120 mm |
| June | 32°C | 23°C | 27.2°C | 175 mm |
| July | 32°C | 24°C | 28.2°C | 183 mm |
| August | 33°C | 24°C | 28.1°C | 166 mm |
| September | 31°C | 21°C | 26.2°C | 132 mm |
| October | 27°C | 16°C | 21.1°C | 94 mm |
| November | 21°C | 10°C | 15.3°C | 102 mm |
| December | 18°C | 7°C | 12.2°C | 114 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00093874; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Gulfport?
Normal highs sit between 65°F and 85°F in March, April, May, October and November. Of those, May has the fewest days with rain (7).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USW00093874.
When is the last frost in Gulfport?
In Gulfport, the last spring frost (32°F) comes after February 23 in half of years and after March 16 in one year in ten; the first autumn frost comes before December 3 in half of years and before November 12 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- February 231 year in 10 after March 16; 9 in 10 after January 25
- First autumn frost, half of years before
- December 31 year in 10 before November 12; 9 in 10 before January 5
NOAA puts the median frost-free season at 287 days, and the season without a hard freeze (28°F) at 323 days.
A hard freeze (28°F) comes after February 1 in half of springs and before December 31 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Gulfport in zone 9a across its 3 ZIP code areas (9a in 39503, the largest). By the map's own method, the average of each year's coldest night over 1991-2020, Gulfport's NOAA station is in zone 9a: the coldest night of a typical year reaches 23°F (22 complete years).
Frost dates for every NOAA station in Mississippi · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00093874; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
What hardiness zone is each Gulfport ZIP code in?
The USDA's 2023 map gives each ZIP code area one zone. Gulfport's 3 ZIP code areas are all in zone 9a. Each ZIP's frost dates are in the frost tool.
Source: USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; ZIP areas in the place: Census Bureau 2020 ZCTA-to-place relationship file. A ZIP area counts when at least a tenth of its land (and 0.5 km²) lies in the place.
How hot and how cold does it get in Gulfport?
In a normal year in Gulfport, 69 days a year reach 90°F (1 of them 100°F or more), 16 nights fall to 32°F or colder and 117 days bring measurable precipitation.
- Days at 90°F or more
- 69a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 16a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 117a normal year
The highest temperature in Gulfport's official record (kept by the National Weather Service since 1893) is 107°F, on August 26, 2023; the lowest is 1°F, on February 12, 1899.
The wettest calendar year on that record is 2021, with 99.13 in; the snowiest season is 1963–64, with 7.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USW00093874; records: ACIS (NOAA Regional Climate Centers), NWS threaded record GPTthr. Records use complete months only; a month missing more than three days is left out.
How sunny is Gulfport?
Over a year 79% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Gulfport, 4.7 kWh per square metre a day. October is the sunniest month (84%) and February the cloudiest (71%). Among the 459 U.S. places of 50,000 or more, that ranks tied 176th (with 33 others) in sunshine.
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 73% | 3.0 |
| February | 71% | 3.5 |
| March | 76% | 4.7 |
| April | 80% | 5.8 |
| May | 83% | 6.4 |
| June | 80% | 6.2 |
| July | 78% | 5.9 |
| August | 80% | 5.6 |
| September | 83% | 5.2 |
| October | 84% | 4.5 |
| November | 81% | 3.5 |
| December | 72% | 2.7 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Gulfport need?
A normal year in Gulfport brings 1,507 heating degree days, 72% fewer than the median U.S. place (5,373), and 2,749 cooling degree days, 3.0 times the median (908). Two months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 6,931 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 416 | 8 |
| February | 282 | 16 |
| March | 166 | 45 |
| April | 48 | 122 |
| May | 3 | 313 |
| June | 0 | 478 |
| July | 0 | 547 |
| August | 0 | 547 |
| September | 1 | 426 |
| October | 39 | 194 |
| November | 198 | 36 |
| December | 355 | 15 |
| Year (annual) | 1,507 | 2,749 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00093874. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Gulfport been warmer than normal lately?
2025 averaged 69.1°F, 0.8°F above the 1991-2020 normal of 68.3°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 68.9°F | +0.6°F | 99.13 |
| 2022 | 69.1°F | +0.8°F | 56.20 |
| 2023 | 71.5°F | +3.2°F | 38.21 |
| 2024 | 71.1°F | +2.8°F | 67.04 |
| 2025 | 69.1°F | +0.8°F | 63.68 |
Source: observed years: ACIS, station USW00093874. A year counts only with all twelve months complete.
How does Gulfport's climate compare?
Gulfport is warmer than 79 of the other 80 places with their own NOAA record in Mississippi, and wetter than 65. Across the 7,247 U.S. stations with normals, its annual mean of 68.3°F is warmer than 93%.
In the Köppen classification computed from these normals, Gulfport is Cfa: temperate, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Gulfport share this climate record?
2 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Long Beach, MS17,217 people · 6 mi SW
- Lyman, MS2,041 people · 7 mi NW
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
What do Gulfport's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Gulfport. This page uses Gulfport - Biloxi Airport; the other differs by site and elevation:
| Station | From this station | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Gulfport Naval Center USC00223671 | 3 mi SW | 35 ft | 68.4°F | 44°F | 90°F | 68.2 | 0 | February 18 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Gulfport's climate
What is the coldest month in Gulfport?
January, with a normal high of 61°F and a normal low of 42°F. The warmest is July (90°F by day, 75°F at night).
Does it snow in Gulfport?
Rarely. NOAA publishes no 1991-2020 snowfall normal for Gulfport's NOAA station; Gulfport's own co-op station Gulfport Naval Center records 0 inches of snow in a normal year.
What is the rainiest month in Gulfport?
July, with 7.21 in of precipitation in a normal year; the driest is October with 3.71 in.
What plant hardiness zone is Gulfport in?
The USDA's 2023 map puts Gulfport in zone 9a across its 3 ZIP code areas (9a in 39503, the largest). By the same method at Gulfport's NOAA station, the coldest night of a typical year reaches 23°F (22 years, 1991-2020): zone 9a.
How late can frost come in Gulfport?
In half of years the last 32°F night comes after February 23; in one year in ten it comes after March 16. Waiting until March 16 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Gulfport in OctoberThis month day by day, its records and recent years
- Mississippi climateThe statewide normals and every place in the state
- Biloxi, MS5 miles from this station, 68.5°F a year
- Saucier, MS15 miles from this station, 66.9°F a year
- Waveland, MS20 miles from this station, 67.0°F a year
- Bay St. Louis, MS31 miles from this station, 65.6°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made