Aynor, SC climate
Aynor has mild winters and warm summers, with plenty of rain. A typical July afternoon reaches 91°, a January night drops to 35°.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Aynor feels like
Winter
Spring
Summer
Fall
Aynor 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 | 57° | 35° | 3.4" | 41° – 52° |
| February | 61° | 38° | 3.2" | 41° – 58° |
| March | 68° | 43° | 3.6" | 48° – 63° |
| April | 76° | 51° | 3.3" | 59° – 67° |
| May | 82° | 59° | 3.8" | 67° – 75° |
| June | 88° | 68° | 5.0" | 74° – 82° |
| July | 91° | 71° | 5.5" | 78° – 84° |
| August | 89° | 70° | 6.3" | 77° – 84° |
| September | 84° | 65° | 5.6" | 71° – 80° |
| October | 76° | 53° | 3.9" | 60° – 70° |
| November | 67° | 43° | 3.1" | 50° – 61° |
| December | 60° | 37° | 3.7" | 39° – 60° |
| Year | 75° | 53° | 50.4" |
“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 Aynor
Aynor gets 50 inches of rain and melted snow a year. August is the wettest month and November the driest.
About 254 frost-free days a year
In half of years the last 32° night comes by March 15 and the first one by November 22. That leaves about 254 frost-free days for gardens, longer than 91% of U.S. towns.
Heating and cooling a home in Aynor
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Aynor, 52% of that work is heating and 48% is cooling.
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 Aynor 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 Aynor averaged 1.0° warmer than the 1900s. The biggest change is in December (+2.2°). The shift is smaller than in 72% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Aynor’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 39° to 60°. July is the most reliable, staying within 6°.
Common questions about Aynor’s climate
What is the coldest month in Aynor?
January, with a typical high of 57° and a low of 35°.
What is the hottest month in Aynor?
July, with a typical high of 91° and a low of 71°. About 58 days a year reach 90°.
When is the first frost in Aynor?
In half of years the first 32° night comes by November 22, and the last spring frost by March 15.
What is the rainiest month in Aynor?
August, with 6.3 inches of rain and melted snow. The year totals 50 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Aynor itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Conway, SC (15 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.