Marianna, FL climate
Marianna has mild winters and hot summers, with plenty of rain. A typical July afternoon reaches 92°, a January night drops to 40°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Marianna feels like
Winter
Spring
Summer
Fall
Marianna weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 63° | 40° | 4.9" | 0 | 10 | 0 | 44° – 58° |
| February | 67° | 43° | 4.7" | 0 | 9 | 0 | 45° – 65° |
| March | 73° | 49° | 4.9" | 0 | 9 | 0 | 55° – 69° |
| April | 80° | 54° | 4.2" | 0 | 7 | 0 | 62° – 72° |
| May | 87° | 63° | 3.3" | 0 | 8 | 0 | 71° – 78° |
| June | 91° | 70° | 5.3" | 0 | 12 | 0 | 77° – 85° |
| July | 92° | 72° | 6.0" | 0 | 15 | 0 | 80° – 85° |
| August | 91° | 72° | 5.7" | 0 | 14 | 0 | 79° – 85° |
| September | 88° | 68° | 5.2" | 0 | 10 | 0 | 75° – 83° |
| October | 81° | 57° | 2.8" | 0 | 7 | 0 | 65° – 74° |
| November | 72° | 47° | 3.6" | 0 | 7 | 0 | 53° – 65° |
| December | 64° | 42° | 4.9" | 0 | 9 | 0 | 43° – 62° |
| Year | 79° | 56° | 55.4" | 0.0" | 117 | 0 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Marianna
Marianna gets 55 inches of rain and melted snow a year. July is the wettest month and October the driest. Rain or snow falls on about 117 days a year.
About 270 frost-free days a year
In half of years the last 32° night comes by March 1 and the first one by November 27. That leaves about 270 frost-free days for gardens, longer than 93% of U.S. towns.
Heating and cooling a home in Marianna
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Marianna, 36% of that work is heating and 64% is cooling, so air conditioning is the bigger bill.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
How Marianna compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Marianna averaged 0.6° warmer than the 1900s. The biggest change is in December (+1.3°). The shift is smaller than in 94% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Marianna’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 45° to 65°. July is the most reliable, staying within 5°.
Common questions about Marianna’s climate
What is the coldest month in Marianna?
January, with a typical high of 63° and a low of 40°.
What is the hottest month in Marianna?
July, with a typical high of 92° and a low of 72°. About 100 days a year reach 90°.
How much snow does Marianna get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Marianna?
In half of years the first 32° night comes by November 27, and the last spring frost by March 1.
What is the rainiest month in Marianna?
July, with 6.0 inches of rain and melted snow. The year totals 55 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Marianna itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Chipley, FL (19 mi, snow) and Marianna Municipal Airport, FL (4 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.