Iona, FL climate
Iona has warm winters and warm summers, with plenty of rain. A typical July afternoon reaches 92°, a January night drops to 55°.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Iona feels like
Winter
Spring
Summer
Fall
Iona weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 75° | 55° | 2.4" | 58° – 70° |
| February | 77° | 57° | 1.9" | 59° – 74° |
| March | 80° | 60° | 2.1" | 63° – 75° |
| April | 84° | 65° | 2.3" | 71° – 79° |
| May | 88° | 70° | 3.6" | 76° – 82° |
| June | 91° | 75° | 8.3" | 81° – 86° |
| July | 92° | 76° | 8.3" | 82° – 85° |
| August | 92° | 76° | 8.7" | 83° – 85° |
| September | 90° | 75° | 8.0" | 80° – 84° |
| October | 87° | 71° | 3.5" | 76° – 83° |
| November | 81° | 63° | 1.9" | 68° – 78° |
| December | 77° | 58° | 1.9" | 57° – 75° |
| Year | 84° | 67° | 52.7" |
“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 Iona
Iona gets 53 inches of rain and melted snow a year. August is the wettest month and February the driest.
A year-round growing season
Heating and cooling a home in Iona
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Iona, 6% of that work is heating and 94% 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.
Iona and its neighbors
Iona borders 2 towns with climate data. January nights across them vary by 0.5°. McGregor has the coldest January nights (55°) and Punta Rassa the hottest July afternoons (92°). Iona’s January low is 55° and its July high 92°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Iona 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 Iona averaged 1.5° warmer than the 1900s. The biggest change is in February (+2.4°). The shift is larger than in 71% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Iona’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. December swings the most: between 1991 and 2020 its average temperature ranged from 57° to 75°. August is the most reliable, staying within 3°.
Common questions about Iona’s climate
What is the coldest month in Iona?
January, with a typical high of 75° and a low of 55°.
What is the hottest month in Iona?
August, with a typical high of 92° and a low of 76°. About 120 days a year reach 90°.
When is the first frost in Iona?
Frost is uncommon. Only 14% of years see a night at 32° or below.
What is the rainiest month in Iona?
August, with 8.7 inches of rain and melted snow. The year totals 53 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Iona itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Ft Myers Page Fld Airport, FL (8 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.