Gulfport - Biloxi, MS Climate: Temperature & Rain by Month
Explore NOAA NCEI's 1991–2020 climate normals → and a clearly labeled PlainClimate comfort calculation
30-year climate normals (1991-2020) from Gulfport - Biloxi's primary NOAA station, GULFPORT - BILOXI AP.
The climate verdict for Gulfport - Biloxi
Water is the standout signal in Gulfport - Biloxi, Mississippi: 62.8 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 68°F. Its climate comfort score of 73/100 (good) lands mid-pack nationally, exceeding 66% of station-mapped location scores.
- 68°F
- annual average temperature (NOAA normal)
- 73/100
- comfort score, above 66% of station-mapped location scores
- 62.8"
- annual precipitation
- 283 days
- growing season, frost-free days
Gulfport - Biloxi: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00093874 · Gulfport - Biloxi, MS 68°F mean · 62.8" precip
TEMP-MILD · RANK-WARM · PHOTO-FINISH · PRCP-WET · SWING-MID · COMF-MID · LOAD-MIX · STN-1 · BOOK-FULL
- TEMP-MILD 68°F
- RANK-WARM #6,381
- PHOTO-FINISH ≈ Grand Coteau
- PRCP-WET 62.8"
- SWING-MID 31°F
- COMF-MID 73/100
- LOAD-MIX H/C balanced
- STN-1 USW00093874
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Grand Coteau, LA (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every MS station list.
- Gulfport - Bilo… (this station) 68°F
- Hot Natchitoches, LA 68°F
- Near Grand Coteau, LA 68°F
- Near High Springs, FL 68°F
- Near Marianna, FL 68°F
Gulfport - Biloxi sits in Mississippi, the #5 hottest U.S. state at 64.1°F statewide annual average - see all 50 hottest states ranked by NOAA normals
Climate Living Index · Gulfport - Biloxi
Gulfport - Biloxi: 76/100 · grade B
Gulfport - Biloxi publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Gulfport - Biloxi, not an official NOAA rating. Rankings still use Comfort Score 73/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Frost-free season | 283 days/year | 98/100 · A |
| Annual temperature balance | 68.3°F · 0.8° from 67.5°F | 96/100 · A |
| Normal heat + freeze calendar | 57 calendar days | 90/100 · A |
| Precipitation balance | 62.8 in · 27.8 from 35 in | 6/100 · F |
Gulfport - Biloxi · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Gulfport - Biloxi is a temperate Köppen climate: Cfa
Coldest-month mean 51.8°F and warmest-month mean 82.7°F place this station in temperate, no dry season, hot summer climates (Cfa). Class Cfa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, no dry season, hot summer.
- Köppen code
- Cfa
- Group
- Temperate
- Warmest month
- 82.7°F
- Coldest month
- 51.8°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · balanced station
Where Gulfport - Biloxi sits across the climate record
Three NOAA fields for Gulfport - Biloxi's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 7% warmest
- Among 6,861 stations, Gulfport - Biloxi sits in the warmer third of annual means.
- Annual precipitation
- Top 4% wettest
- Gulfport - Biloxi's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 89%
- Warmest-to-coldest month gap for Gulfport - Biloxi is compact versus 6,861 complete station-years.
How Gulfport - Biloxi compares across U.S. station-mapped locations
Gulfport - Biloxi's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
73 Top 34% score exceeds 66% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). Below this entry.
- 70–80: 650 station-mapped locations (11%). This entry sits in this band.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 61°F (16°C) | 42°F (6°C) | 52°F (11°C) | 4.9" | 7.0 | 0.0 |
| February | 65°F (18°C) | 46°F (8°C) | 56°F (13°C) | 4.4" | 3.2 | 0.0 |
| March | 70°F (21°C) | 52°F (11°C) | 61°F (16°C) | 5.2" | 0.7 | 0.0 |
| April | 77°F (25°C) | 58°F (15°C) | 68°F (20°C) | 5.5" | 0.0 | 0.1 |
| May | 84°F (29°C) | 66°F (19°C) | 75°F (24°C) | 4.7" | 0.0 | 2.5 |
| June | 89°F (32°C) | 73°F (23°C) | 81°F (27°C) | 6.9" | 0.0 | 13.0 |
| July | 90°F (32°C) | 75°F (24°C) | 83°F (28°C) | 7.2" | 0.0 | 20.1 |
| August | 91°F (33°C) | 75°F (24°C) | 83°F (28°C) | 6.5" | 0.0 | 21.2 |
| September | 88°F (31°C) | 71°F (21°C) | 79°F (26°C) | 5.2" | 0.0 | 11.0 |
| October | 80°F (27°C) | 60°F (16°C) | 70°F (21°C) | 3.7" | 0.0 | 1.3 |
| November | 70°F (21°C) | 49°F (10°C) | 60°F (15°C) | 4.0" | 1.0 | 0.0 |
| December | 64°F (18°C) | 45°F (7°C) | 54°F (12°C) | 4.5" | 4.0 | 0.0 |
The year, day by day
The year in Gulfport - Biloxi runs from a mild 42°F around January 10 to 91°F at the peak near August 1, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from July 5 through August 30, covering 57 dates. The broader mild season, normal highs of 70°F or more, runs March 14 to November 14.
This counts calendar dates whose 1991–2020 normal high reaches 90°F. It is a smaller number than the 90°F+ day counts in the monthly table above, which measure how often the threshold was actually crossed in a typical year. A date can average 88°F and still exceed 90°F in half of all years.
No freezing date
Not one calendar date in the 1991–2020 record carries a normal low at or below 32°F. The coldest normal low of the year is 42°F around January 10.
Where the wet dates fall
The likeliest wet date is August 14, when 44% of years recorded at least a hundredth of an inch. The driest is May 2 at 22%. Summed across the calendar, that is about 117 wet dates a year.
The widest day
November 2 carries the biggest normal gap between afternoon and dawn, 21°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Gulfport - Biloxi.
Where Gulfport - Biloxi Stands Nationally
This is one of the wettest normals climates ranked: about 63 inches of precipitation in a normal year, a total fewer than one station in ten surpasses.
Among the steadiest day-night climates ranked: even the widest normal daily swing holds to roughly 21°F.
Gulfport - Biloxi earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall
8.9 days with precipitation
9.3 days with precipitation
8.9 days with precipitation
7.5 days with precipitation
7.3 days with precipitation
12.0 days with precipitation
12.8 days with precipitation
13.9 days with precipitation
9.2 days with precipitation
7.9 days with precipitation
8.3 days with precipitation
10.5 days with precipitation
Gulfport - Biloxi spreads its precipitation across the year
Neither half of the year dominates here: June through August take 33% of the annual total and December through February 22%, with neither reaching the 35% that would mark a distinct wet season. Gulfport - Biloxi has no dry season to plan around, though it does carry a 30.9°F seasonal spread.
The gap between the wettest and driest month still matters: July averages 7.2" and October 3.7". The three wettest months together take 33% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
When it rains in Gulfport - Biloxi, it arrives in quantity
62.8" of precipitation falls across only about 117 wet days here, averaging 0.54 inches each. Fewer days carry more water: the year's total is delivered in comparatively heavy events rather than persistent damp.
- Days with measurable precipitation
- about 117 a year, 32% of all days
- Average depth per wet day
- 0.54 inches
- Most wet days
- August, about 14
- Fewest wet days
- May, about 7
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, and a per-day average is not a forecast of any individual storm.
Frost Dates & Growing Season
First Fall Freeze
December 3
50% probability date
Last Spring Freeze
February 23
50% probability date
Growing Season
283 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
1,507
Higher = more heating needed
Cooling Degree Days
2,749
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside MS closest to Gulfport - Biloxi on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (68°F here).
- Grand Coteau, LA 68°F · 0.0°F off
- High Springs, FL 68°F · 0.0°F off
- Marianna, FL 68°F · 0.0°F off
- Natchitoches, LA 68°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (62.8" here), excluding temperature-peer places.
- Liberty, TX 62.8" · 0.0" off
- Buras, LA 62.8" · 0.0" off
- Stuart, FL 62.7" · 0.1" off
- Cascadia, OR 63.1" · 0.3" off
Data-derived climate profile
How Gulfport - Biloxi's climate pattern fits together
mixed demand · wet · mid swing
Water is prominent even though neither heating nor cooling wholly defines the record. Gulfport - Biloxi averages 62.8 inches of precipitation a year. Snowfall is not added to the interpretation because its annual value is missing. The monthly table supplies the seasonal distribution hidden by that annual total.
July and January mark the typical warm and cold ends of the calendar in Gulfport - Biloxi's middle-range seasonal profile. The measured spread is 30.9°F. The annual average is 68°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Heating and cooling both register in Gulfport - Biloxi's normal, at 1,507 and 2,749 degree days respectively. Neither total exceeds the other by more than two to one, so the record is better read as a mixed-demand calendar than as heating-led or cooling-led.
The frost-free window extends for about 283 days. That is a long calendar measure, but it is not a forecast and does not combine heat, rainfall, soil, or local elevation into a planting recommendation.
These labels group NOAA 1991-2020 normals from Gulfport - Biloxi's primary station, where heating and cooling demand are close enough that neither season sets the character on its own. On a balanced station like Gulfport - Biloxi, the bands are descriptive ranges rather than an official NOAA classification or a forecast.
Questions about Gulfport - Biloxi's climate
How much rain does Gulfport - Biloxi get? ▼
How many days above 90°F does Gulfport - Biloxi get? ▼
How much energy does heating and cooling require in Gulfport - Biloxi? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Gulfport - Biloxi's primary station: GULFPORT - BILOXI AP (USW00093874). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Gulfport - Biloxi; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Gulfport - Biloxi comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.