Marianna, Florida climate: Normal weather by month, frost dates and records
Marianna's normal year runs from 41°F January nights to 92°F July afternoons, with 51.1 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 20.2°C, January lows of 5°C, July highs of 34°C, 1,298 mm of precipitation a year.
- NOAA stationMarianna Municipal Airport
- Station IDUSW00003818
- Location30.84°N 85.18°W
- Elevation113 ft (34 m)
- Population7,975
On October 22, the normal high in Marianna is 79°F and the normal low 55°F, and the chance of measurable rain or snow is 27%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Marianna.
- Jan 63° 41°
- Feb 67° 44°
- Mar 74° 49°
- Apr 80° 55°
- May 88° 64°
- Jun 91° 71°
- Jul 92° 73°
- Aug 91° 73°
- Sep 89° 69°
- Oct 81° 58°
- Nov 72° 47°
- Dec 65° 43°
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 Marianna each month?
July is the warmest month, with normal highs of 92°F; January the coldest, with normal lows of 41°F. The most precipitation falls in July (5.10 in), the least in October (3.06 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 63°F | 41°F | 51.8°F | 4.04 | 10 | <1 | 9 | 10 h 20 min |
| February | 67°F | 44°F | 55.4°F | 4.49 | 9 | <1 | 4 | 11 h |
| March | 74°F | 49°F | 61.5°F | 5.01 | 9 | <1 | 1 | 12 h |
| April | 80°F | 55°F | 67.6°F | 3.72 | 7 | 1 | <1 | 12 h 50 min |
| May | 88°F | 64°F | 75.9°F | 3.15 | 6 | 12 | <1 | 13 h 40 min |
| June | 91°F | 71°F | 81.1°F | 5.07 | 12 | 20 | <1 | 14 h 10 min |
| July | 92°F | 73°F | 82.7°F | 5.10 | 14 | 25 | <1 | 14 h |
| August | 91°F | 73°F | 82.1°F | 4.93 | 14 | 23 | <1 | 13 h 20 min |
| September | 89°F | 69°F | 78.7°F | 4.06 | 9 | 16 | <1 | 12 h 20 min |
| October | 81°F | 58°F | 69.5°F | 3.06 | 8 | 3 | <1 | 11 h 30 min |
| November | 72°F | 47°F | 59.6°F | 3.67 | 9 | <1 | 2 | 10 h 40 min |
| December | 65°F | 43°F | 53.9°F | 4.81 | 11 | <1 | 6 | 10 h 10 min |
| Year (annual) | 79°F | 57°F | 68.3°F | 51.11 | 119 | 100 | 22 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 17°C | 5°C | 11.0°C | 103 mm |
| February | 19°C | 7°C | 13.0°C | 114 mm |
| March | 23°C | 10°C | 16.4°C | 127 mm |
| April | 27°C | 13°C | 19.8°C | 94 mm |
| May | 31°C | 18°C | 24.4°C | 80 mm |
| June | 33°C | 22°C | 27.3°C | 129 mm |
| July | 34°C | 23°C | 28.2°C | 130 mm |
| August | 33°C | 23°C | 27.8°C | 125 mm |
| September | 32°C | 20°C | 25.9°C | 103 mm |
| October | 27°C | 14°C | 20.8°C | 78 mm |
| November | 22°C | 9°C | 15.3°C | 93 mm |
| December | 18°C | 6°C | 12.2°C | 122 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Chipley (22 miles away), gets 0 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USW00003818; 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 Marianna?
Normal highs sit between 65°F and 85°F in February, March, April, October and November. Of those, April 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 USW00003818.
When is the last frost in Marianna?
In Marianna, the last spring frost (32°F) comes after March 1 in half of years and after March 21 in one year in ten; the first autumn frost comes before November 27 in half of years and before November 8 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 11 year in 10 after March 21; 9 in 10 after February 2
- First autumn frost, half of years before
- November 271 year in 10 before November 8; 9 in 10 before December 28
NOAA puts the median frost-free season at 270 days, and the season without a hard freeze (28°F) at 308 days.
A hard freeze (28°F) comes after February 9 in half of springs and before December 22 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Marianna in zone 9a in ZIP code 32446, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Marianna's NOAA station is in zone 9a: the coldest night of a typical year reaches 22°F (18 complete years).
Frost dates for every NOAA station in Florida · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00003818; 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.
How hot and how cold does it get in Marianna?
In a normal year in Marianna, 100 days a year reach 90°F (4 of them 100°F or more), 22 nights fall to 32°F or colder and 119 days bring measurable precipitation.
- Days at 90°F or more
- 100a normal year
- Days at 100°F or more
- 4a normal year
- Nights at 32°F or colder
- 22a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 119a normal year
The highest temperature in this station's record (since 1950) is 105°F, on June 15, 2011; the lowest is 15°F, on January 22, 2025.
The wettest calendar year on that record is 1953, with 67.19 in; the snowiest season is 2024–25, with 5.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USW00003818; records: ACIS (NOAA Regional Climate Centers), station USW00003818. Records use complete months only; a month missing more than three days is left out.
How sunny is Marianna?
Over a year 79% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Marianna, 4.8 kWh per square metre a day. May is the sunniest month (84%) and February the cloudiest (74%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 76% | 3.1 |
| February | 74% | 3.7 |
| March | 79% | 5.0 |
| April | 81% | 6.0 |
| May | 84% | 6.6 |
| June | 78% | 6.1 |
| July | 78% | 5.8 |
| August | 77% | 5.4 |
| September | 80% | 5.0 |
| October | 83% | 4.4 |
| November | 82% | 3.6 |
| December | 75% | 2.8 |
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 Marianna need?
A normal year in Marianna brings 1,522 heating degree days, 72% fewer than the median U.S. place (5,373), and 2,755 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 6,933 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 420 | 11 |
| February | 285 | 17 |
| March | 161 | 50 |
| April | 49 | 127 |
| May | 3 | 339 |
| June | 0 | 484 |
| July | 0 | 549 |
| August | 0 | 530 |
| September | 1 | 410 |
| October | 41 | 183 |
| November | 201 | 38 |
| December | 363 | 17 |
| Year (annual) | 1,522 | 2,755 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00003818. 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 Marianna been warmer than normal lately?
2025 averaged 69.0°F, 0.7°F above the 1991-2020 normal of 68.3°F. 3 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 68.3°F | at normal | – |
| 2022 | 68.1°F | −0.2°F | 51.33 |
| 2023 | 69.3°F | +1.0°F | 45.63 |
| 2024 | 69.7°F | +1.4°F | 64.60 |
| 2025 | 69.0°F | +0.7°F | 40.09 |
Source: observed years: ACIS, station USW00003818. A year counts only with all twelve months complete.
How does Marianna's climate compare?
Marianna is warmer than 13 of the other 105 places with their own NOAA record in Florida, and wetter than 24. 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, Marianna 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 Marianna share this climate record?
4 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.
- Cottonwood, AL1,093 people · 17 mi NW
- Grand Ridge, FL925 people · 13 mi SE
- Greenwood, FL561 people · 3 mi NE
- Altha, FL495 people · 18 mi S
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Marianna's climate
What is the coldest month in Marianna?
January, with a normal high of 63°F and a normal low of 41°F. The warmest is July (92°F by day, 73°F at night).
Does it snow in Marianna?
Rarely. NOAA publishes no 1991-2020 snowfall normal for Marianna's NOAA station; the nearest record that keeps one, Chipley (22 miles away), records 0 inches of snow in a normal year.
What is the rainiest month in Marianna?
July, with 5.10 in of precipitation in a normal year; the driest is October with 3.06 in.
What plant hardiness zone is Marianna in?
The USDA's 2023 map puts Marianna in zone 9a in ZIP code 32446, the nearest ZIP area. By the same method at Marianna's NOAA station, the coldest night of a typical year reaches 22°F (18 years, 1991-2020): zone 9a.
How late can frost come in Marianna?
In half of years the last 32°F night comes after March 1; in one year in ten it comes after March 21. Waiting until March 21 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Florida climateThe statewide normals and every place in the state
- Donalsonville, GA22 miles from this station, 67.0°F a year
- Chipley, FL22 miles from this station, 67.7°F a year
- Bonifay, FL25 miles from this station, 67.3°F a year
- Bainbridge, GA34 miles from this station, 67.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made