Photo: Elizabeth B. Thomsen Ethomsen · CC BY 2.5Carrboro’s winters are milder and less snowy than most of the U.S.
A typical July afternoon reaches 89°, a January night drops to 30°, and about 3 inches of snow falls in a normal winter.
A year in Carrboro at a glance
Each month’s typical high and low, and what it brings.
What stands out about Carrboro’s climate
Compared with towns across the U.S., with Carrboro’s place in North Carolina beside it.
What a year in Carrboro feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 218 frost-free days a year
In half of years the last 32° night comes by March 31 and the first by November 3. Frost and day counts come from NOAA’s station at Chapel Hill 2 W, NC, 1.3 miles from the town’s center, at about the same height.
The 2023 USDA map puts Carrboro’s center in zone 8a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 12°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 3 inches of snow a winter
Snow, measured at Chapel Hill 2 W, NC, falls mostly in January. Precipitation (rain plus melted snow) adds up to 47 inches a year; September is the wettest month and February the driest. Rain or snow falls on about 124 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Carrboro
69% of the work is heating. Months averaging under 55° run from November through March.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Chapel Hill 2 W, NC.
Living with Carrboro’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
218 frost-free days in zone 8a. The last frost comes by Mar 31 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 3.
Months with highs of 62–84° and lows of 40° or more: April, May, September and October. 29 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Carrboro from natural hazards, river flooding is the largest share (66%); heat waves, cold waves, winter storms and ice storms together are 8%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Carrboro and similar climates
TownRatings has no climate map of the towns around Carrboro yet.
Climates most like Carrboro’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Carrboro, NC | 30° | 89° | 47" | 2.8" |
| Gaffney, SC | 30° | 90° | 47" | 1.9" |
| Newport, TN | 28° | 88° | 47" | 3.3" |
| Williamsburg, VA | 30° | 89° | 49" | 4.3" |
| Sikeston, MO | 28° | 90° | 49" | 3.1" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Carrboro averaged 1.1° warmer than the 1900s. The biggest change is in December (+2.4°).
A smaller shift than in 71% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Carrboro compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Carrboro’s place among North Carolina’s.
Carrboro weather by month
Highs, lows and precipitation from NOAA’s grid at Carrboro’s center; snow, wet days and snow on the ground from Chapel Hill 2 W, NC. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 51° | 30° | 3.6" | 1.5" | 11 | 0 | 35° – 46° |
| February | 55° | 32° | 3.0" | 0.9" | 10 | 0 | 34° – 51° |
| March | 62° | 38° | 4.3" | 0.1" | 12 | 0 | 43° – 59° |
| April | 72° | 46° | 3.7" | 0.0" | 10 | 0 | 55° – 64° |
| May | 79° | 55° | 3.7" | 0.0" | 10 | 0 | 62° – 73° |
| June | 86° | 64° | 4.3" | 0.0" | 11 | 0 | 71° – 80° |
| July | 89° | 68° | 4.6" | 0.0" | 11 | 0 | 75° – 82° |
| August | 87° | 67° | 4.4" | 0.0" | 11 | 0 | 74° – 83° |
| September | 82° | 60° | 4.9" | 0.0" | 9 | 0 | 68° – 76° |
| October | 72° | 48° | 3.5" | 0.0" | 9 | 0 | 57° – 65° |
| November | 62° | 38° | 3.3" | 0.1" | 9 | 0 | 45° – 56° |
| December | 54° | 32° | 3.6" | 0.2" | 11 | 0 | 34° – 54° |
| Year | 71° | 48° | 46.9" | 2.8" | 124 | 0 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 34° to 54°. July is the most reliable, staying within 7°.
Where Carrboro’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Carrboro’s center.
- Snow: Chapel Hill 2 W, NC (NOAA station in town).
- Frost, freezing nights, 90° and 100° days, heating and cooling: Chapel Hill 2 W, NC, 1.3 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Carrboro’s climate
What is the weather like in Carrboro?
A typical July afternoon reaches 89°, a January night drops to 30°, and about 3 inches of snow falls in a normal winter. Milder January nights than 72% of U.S. towns; hotter July afternoons than 74% of U.S. towns.
How cold does it get in Carrboro in winter?
January nights average 30°. About 77 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 35°.
How much snow does Carrboro get?
About 2.8 inches in a normal winter at Chapel Hill 2 W, NC, most of it in January, with snow on the ground about 0 days a year.
How hot does it get in Carrboro?
July, with a typical high of 89° and a low of 68°. About 44 days a year reach 90° (Chapel Hill 2 W, NC).
When is the first and last frost in Carrboro?
In half of years the last spring frost (32°) comes by March 31 and the first fall frost by November 3, about 218 frost-free days, at Chapel Hill 2 W, NC.
What growing zone is Carrboro in?
Zone 8a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 12°.
What is the best time of year to visit Carrboro?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Carrboro getting warmer?
Yes: 1991–2020 averaged 1.1° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 71% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Carrboro.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.