Hattiesburg, Mississippi climate: Normal weather by month, frost dates and records
Hattiesburg's normal year runs from 38°F January nights to 92°F July afternoons, with 58.9 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 19.2°C, January lows of 3°C, July highs of 33°C, 1,496 mm of precipitation a year.
- NOAA stationHattiesburg Chain Municipal Airport
- Station IDUSW00013833
- Location31.28°N 89.25°W
- Elevation151 ft (46 m)
- From the center4 miles
- Population48,522
On October 22, the normal high in Hattiesburg is 78°F and the normal low 52°F, and the chance of measurable rain or snow is 23%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Hattiesburg.
- Jan 60° 38°
- Feb 65° 42°
- Mar 72° 48°
- Apr 78° 54°
- May 85° 62°
- Jun 90° 70°
- Jul 92° 72°
- Aug 92° 72°
- Sep 88° 67°
- Oct 80° 55°
- Nov 69° 44°
- Dec 62° 41°
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 Hattiesburg each month?
July is the warmest month, with normal highs of 92°F; January the coldest, with normal lows of 38°F. The most precipitation falls in June (5.85 in), the least in October (3.70 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 | 60°F | 38°F | 49.1°F | 5.82 | 10 | <1 | 12 | 10 h 20 min |
| February | 65°F | 42°F | 53.1°F | 4.88 | 11 | <1 | 7 | 11 h |
| March | 72°F | 48°F | 59.8°F | 5.57 | 10 | <1 | 2 | 12 h |
| April | 78°F | 54°F | 66.0°F | 5.37 | 8 | 1 | <1 | 12 h 50 min |
| May | 85°F | 62°F | 73.5°F | 4.44 | 9 | 8 | <1 | 13 h 40 min |
| June | 90°F | 70°F | 79.7°F | 5.85 | 11 | 21 | <1 | 14 h 10 min |
| July | 92°F | 72°F | 81.9°F | 5.70 | 14 | 25 | <1 | 14 h |
| August | 92°F | 72°F | 81.8°F | 4.75 | 12 | 25 | <1 | 13 h 20 min |
| September | 88°F | 67°F | 77.4°F | 4.15 | 9 | 15 | <1 | 12 h 20 min |
| October | 80°F | 55°F | 67.3°F | 3.70 | 7 | 3 | <1 | 11 h 30 min |
| November | 69°F | 44°F | 56.6°F | 3.70 | 8 | <1 | 4 | 10 h 40 min |
| December | 62°F | 41°F | 51.4°F | 4.98 | 10 | <1 | 10 | 10 h 10 min |
| Year (annual) | 78°F | 55°F | 66.5°F | 58.91 | 118 | 96 | 34 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 16°C | 3°C | 9.5°C | 148 mm |
| February | 18°C | 5°C | 11.7°C | 124 mm |
| March | 22°C | 9°C | 15.4°C | 141 mm |
| April | 26°C | 12°C | 18.9°C | 136 mm |
| May | 29°C | 17°C | 23.1°C | 113 mm |
| June | 32°C | 21°C | 26.5°C | 149 mm |
| July | 33°C | 22°C | 27.7°C | 145 mm |
| August | 33°C | 22°C | 27.7°C | 121 mm |
| September | 31°C | 19°C | 25.2°C | 105 mm |
| October | 26°C | 13°C | 19.6°C | 94 mm |
| November | 21°C | 7°C | 13.7°C | 94 mm |
| December | 17°C | 5°C | 10.8°C | 126 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. Hattiesburg's own co-op station Hattiesburg (5 mi SW) does: 1 inches of snow in a normal year (see the other stations below).
Source: NOAA NCEI 1991-2020 monthly normals, station USW00013833; 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 Hattiesburg?
Normal highs sit between 65°F and 85°F in March, April, May, October and November. Of those, October 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 USW00013833.
When is the last frost in Hattiesburg?
In Hattiesburg, the last spring frost (32°F) comes after March 8 in half of years and after March 28 in one year in ten; the first autumn frost comes before November 15 in half of years and before November 1 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
- March 81 year in 10 after March 28; 9 in 10 after February 16
- First autumn frost, half of years before
- November 151 year in 10 before November 1; 9 in 10 before December 4
NOAA puts the median frost-free season at 252 days, and the season without a hard freeze (28°F) at 285 days.
A hard freeze (28°F) comes after February 22 in half of springs and before November 30 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Hattiesburg in zone 8b across its 3 ZIP code areas (8b in 39401, the largest). By the map's own method, the average of each year's coldest night over 1991-2020, Hattiesburg's NOAA station is in zone 8b: the coldest night of a typical year reaches 20°F (19 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 USW00013833; 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 Hattiesburg ZIP code in?
The USDA's 2023 map gives each ZIP code area one zone. Hattiesburg's 3 ZIP code areas are all in zone 8b. 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 Hattiesburg?
In a normal year in Hattiesburg, 96 days a year reach 90°F (3 of them 100°F or more), 34 nights fall to 32°F or colder and 118 days bring measurable precipitation.
- Days at 90°F or more
- 96a normal year
- Days at 100°F or more
- 3a normal year
- Nights at 32°F or colder
- 34a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 118a normal year
The highest temperature in Hattiesburg'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 13, 1899.
The wettest calendar year on that record is 1961, with 90.71 in; the snowiest season is 2017–18, with 5.7 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USW00013833; records: ACIS (NOAA Regional Climate Centers), NWS threaded record HBGthr. Records use complete months only; a month missing more than three days is left out.
How sunny is Hattiesburg?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Hattiesburg, 4.6 kWh per square metre a day. September is the sunniest month (82%) and February the cloudiest (69%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 71% | 2.8 |
| February | 69% | 3.4 |
| March | 73% | 4.5 |
| April | 78% | 5.6 |
| May | 80% | 6.1 |
| June | 81% | 6.3 |
| July | 79% | 5.9 |
| August | 81% | 5.6 |
| September | 82% | 5.1 |
| October | 81% | 4.2 |
| November | 79% | 3.3 |
| December | 70% | 2.5 |
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 Hattiesburg need?
A normal year in Hattiesburg brings 1,920 heating degree days, 64% fewer than the median U.S. place (5,373), and 2,479 cooling degree days, 2.7 times the median (908). Three months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 6,396 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 502 | 8 |
| February | 348 | 15 |
| March | 204 | 43 |
| April | 72 | 101 |
| May | 9 | 271 |
| June | 0 | 439 |
| July | 0 | 525 |
| August | 0 | 521 |
| September | 2 | 375 |
| October | 70 | 141 |
| November | 276 | 24 |
| December | 437 | 15 |
| Year (annual) | 1,920 | 2,479 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00013833. 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 Hattiesburg been warmer than normal lately?
2025 averaged 69.5°F, 3.0°F above the 1991-2020 normal of 66.5°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 66.9°F | +0.4°F | 78.33 |
| 2022 | 67.2°F | +0.7°F | 66.93 |
| 2023 | 69.6°F | +3.1°F | 48.14 |
| 2024 | 69.6°F | +3.1°F | 56.52 |
| 2025 | 69.5°F | +3.0°F | – |
Source: observed years: ACIS, station USW00013833. A year counts only with all twelve months complete.
How does Hattiesburg's climate compare?
Hattiesburg is warmer than 71 of the other 80 places with their own NOAA record in Mississippi, and wetter than 36. Across the 7,247 U.S. stations with normals, its annual mean of 66.5°F is warmer than 91%.
In the Köppen classification computed from these normals, Hattiesburg 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 Hattiesburg share this climate record?
9 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.
- Petal, MS11,538 people · 5 mi N
- West Hattiesburg, MS6,509 people · 8 mi W
- Oak Grove, MS2,200 people · 10 mi W
- Purvis, MS1,955 people · 13 mi SW
- Rawls Springs, MS1,554 people · 11 mi NW
- Glendale, MS1,519 people · 7 mi NW
- Arnold Line, MS1,434 people · 8 mi NW
- Runnelstown, MS347 people · 11 mi NE
- Eastabuchie, MS75 people · 10 mi N
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 Hattiesburg's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Hattiesburg. This page uses Hattiesburg Chain Municipal Airport; the other differs by site and elevation:
| Station | From the center | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Hattiesburg (5 mi SW) USC00223887 | 4 mi S | 385 ft | 66.4°F | 38°F | 91°F | 64.4 | 1 | March 7 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Hattiesburg's climate
What is the coldest month in Hattiesburg?
January, with a normal high of 60°F and a normal low of 38°F. The warmest is July (92°F by day, 72°F at night).
Does it snow in Hattiesburg?
Rarely. NOAA publishes no 1991-2020 snowfall normal for Hattiesburg's NOAA station; Hattiesburg's own co-op station Hattiesburg (5 mi SW) records 1 inches of snow in a normal year.
What is the rainiest month in Hattiesburg?
June, with 5.85 in of precipitation in a normal year; the driest is October with 3.70 in.
What plant hardiness zone is Hattiesburg in?
The USDA's 2023 map puts Hattiesburg in zone 8b across its 3 ZIP code areas (8b in 39401, the largest). By the same method at Hattiesburg's NOAA station, the coldest night of a typical year reaches 20°F (19 years, 1991-2020): zone 8b.
How late can frost come in Hattiesburg?
In half of years the last 32°F night comes after March 8; in one year in ten it comes after March 28. Waiting until March 28 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Hattiesburg in OctoberThis month day by day, its records and recent years
- Mississippi climateThe statewide normals and every place in the state
- Beaumont, MS20 miles from this station, 66.3°F a year
- Laurel, MS28 miles from this station, 65.5°F a year
- Wiggins, MS29 miles from this station, 66.1°F a year
- Collins, MS30 miles from this station, 66.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made