Callahan, FL climate
Callahan has warm winters and hot summers, with plenty of rain. A typical July afternoon reaches 92°, a January night drops to 42°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Callahan feels like
Winter
Spring
Summer
Fall
Callahan 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 | 65° | 42° | 3.4" | 0 | 8 | 0 | 48° – 60° |
| February | 69° | 45° | 3.0" | 0 | 8 | 0 | 49° – 65° |
| March | 75° | 50° | 3.4" | 0 | 8 | 0 | 56° – 70° |
| April | 80° | 55° | 3.1" | 0 | 6 | 0 | 63° – 72° |
| May | 86° | 63° | 3.1" | 0 | 7 | 0 | 71° – 78° |
| June | 90° | 70° | 6.9" | 0 | 14 | 0 | 77° – 84° |
| July | 92° | 72° | 6.1" | 0 | 14 | 0 | 80° – 84° |
| August | 91° | 72° | 6.9" | 0 | 15 | 0 | 79° – 84° |
| September | 88° | 69° | 6.3" | 0 | 12 | 0 | 76° – 82° |
| October | 81° | 60° | 4.0" | 0 | 8 | 0 | 67° – 75° |
| November | 73° | 50° | 2.0" | 0 | 7 | 0 | 57° – 68° |
| December | 67° | 45° | 2.7" | 0 | 8 | 0 | 46° – 66° |
| Year | 80° | 58° | 50.9" | 0.0" | 114 | 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 Callahan
Callahan gets 51 inches of rain and melted snow a year. June is the wettest month and November the driest. Rain or snow falls on about 114 days a year.
About 288 frost-free days a year
In half of years the last 32° night comes by February 25 and the first one by December 7. That leaves about 288 frost-free days for gardens, longer than 94% of U.S. towns.
Heating and cooling a home in Callahan
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Callahan, 30% of that work is heating and 70% 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 Callahan 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 Callahan averaged 1.4° warmer than the 1900s. The biggest change is in December (+2.3°). The shift is larger than in 66% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Callahan’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 46° to 66°. July is the most reliable, staying within 4°.
Common questions about Callahan’s climate
What is the coldest month in Callahan?
January, with a typical high of 65° and a low of 42°.
What is the hottest month in Callahan?
July, with a typical high of 92° and a low of 72°. About 80 days a year reach 90°.
How much snow does Callahan get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Callahan?
In half of years the first 32° night comes by December 7, and the last spring frost by February 25.
What is the rainiest month in Callahan?
June, with 6.9 inches of rain and melted snow. The year totals 51 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Callahan itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Jacksonville, FL (10 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.