Timmonsville has mild winters and hot summers, with plenty of rain
A typical July afternoon reaches 92°, a January night drops to 34°, and snow is almost unheard of.
A year in Timmonsville at a glance
Each month’s typical high and low, and what it brings.
What a year in Timmonsville feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
Rain and snow in Timmonsville
August is the wettest month and November the driest. Rain or snow falls on about 105 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
About 0.4" in a normal year, so most winters see none.
About 221 frost-free days a year
In half of years the last 32° night comes by March 30 and the first by November 6.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
Living with Timmonsville’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
221 frost-free days. The last frost comes by Mar 30 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 6.
About 0.4" in a normal winter.
Months averaging under 55° run from November through February. Heating is 58% of the year’s heating-and-cooling load.
About 72 days a year reach 90°, and July afternoons average 92°.
The nicest months are March, April, May, October and November.
Parks & trails →Normals are averages. Ice storms, nor’easters, floods and heat waves are on the natural hazards page.
Natural hazards →Warmer than it used to be
The last 30 years in Timmonsville averaged 1.1° warmer than the 1900s. The biggest change is in December (+2.2°).
A smaller shift than in 65% of U.S. towns.
Change by month
How Timmonsville compares
Against every U.S. town on TownTapestry, each counted once, with its place in South Carolina.
Timmonsville 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 | 57° | 34° | 3.6" | 0 | 10 | 0 | 40° – 52° |
| February | 60° | 37° | 3.3" | 0.2" | 8 | 0 | 41° – 58° |
| March | 68° | 43° | 3.5" | 0.1" | 9 | 0 | 49° – 64° |
| April | 76° | 50° | 3.2" | 0 | 7 | 0 | 59° – 68° |
| May | 83° | 59° | 3.7" | 0 | 8 | 0 | 67° – 76° |
| June | 89° | 67° | 4.7" | 0 | 11 | 0 | 73° – 82° |
| July | 92° | 71° | 5.3" | 0 | 11 | 0 | 78° – 85° |
| August | 90° | 70° | 5.4" | 0 | 11 | 0 | 77° – 85° |
| September | 85° | 64° | 4.9" | 0 | 8 | 0 | 71° – 80° |
| October | 76° | 52° | 3.4" | 0 | 7 | 0 | 60° – 70° |
| November | 67° | 42° | 3.0" | 0 | 7 | 0 | 50° – 59° |
| December | 59° | 37° | 3.7" | 0.1" | 9 | 0 | 38° – 59° |
| Year | 75° | 52° | 47.6" | 0.4" | 105 | 0 |
Heating and cooling a home in Timmonsville
58% of the work is heating.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. Source: NOAA station normals.
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 38° to 59°. July is the most reliable, staying within 7°.
Common questions about Timmonsville’s climate
What is the coldest month in Timmonsville?
January, with a typical high of 57° and a low of 34°.
What is the hottest month in Timmonsville?
July, with a typical high of 92° and a low of 71°. About 72 days a year reach 90°.
How much snow does Timmonsville get?
Almost none. A normal year brings 0.4 inches.
When is the first frost in Timmonsville?
In half of years the first 32° night comes by November 6, and the last spring frost by March 30.
What is the rainiest month in Timmonsville?
August, with 5.4 inches of rain and melted snow. The year totals 48 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Timmonsville.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Timmonsville itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Effingham, SC (12 mi, snow) and Darlington, SC (12 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. Today’s forecast: National Weather Service.