Photo: Brian Stansberry · CC BY 4.0Collinwood sits near the top of U.S. towns for precipitation, with 59 inches a year
In January the night’s low is typically 29°. The seasons are far apart: from a winter night to a summer afternoon the average spans 60°. Winters are mild: January nights here are milder than in 70% of U.S. towns. Comfortable outdoor weather, highs of 72–82°, belongs to April, May, September and October.
A year in Collinwood at a glance
Each month’s typical high and low, and what it brings.
What stands out about Collinwood’s climate
Compared with towns across the U.S., with Collinwood’s place in Tennessee beside it.
What a year in Collinwood feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 192 frost-free days a year
In half of years the last 32° night comes by April 14 and the first by October 24. Frost and day counts come from NOAA’s station at Waynesboro, TN, 9 miles from the town’s center, 260 ft lower.
The 2023 USDA map puts Collinwood’s center in zone 7b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 6°. 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 1 inches of snow a winter
Snow, measured at Waynesboro, TN, falls mostly in March. Precipitation (rain plus melted snow) adds up to 59 inches a year; December is the wettest month and August the driest. Rain or snow falls on about 120 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Collinwood
74% 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 Waynesboro, TN.
Living with Collinwood’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
192 frost-free days in zone 7b. The last frost comes by Apr 14 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 24.
Months with highs of 62–84° and lows of 40° or more: April, May, September and October.
Parks & trails →Of the yearly building losses FEMA expects in Collinwood from natural hazards, river flooding is the largest share (40%); heat waves, cold waves, winter storms and ice storms together are 18%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Collinwood and similar climates
TownRatings has no climate map of the towns around Collinwood yet.
Climates most like Collinwood’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 |
|---|---|---|---|---|
| Collinwood, TN | 29° | 88° | 59" | 1.3" |
| Travelers Rest, SC | 32° | 88° | 60" | 1.9" |
| Bremen, GA | 31° | 88° | 55" | 0.6" |
| Mena, AR | 29° | 90° | 58" | 4.0" |
| Piney Green, NC | 34° | 89° | 57" | 0.6" |
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 Collinwood averaged 0.7° warmer than the 1900s. The biggest change is in February (+1.9°).
A smaller shift than in 94% 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 Collinwood compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Collinwood’s place among Tennessee’s.
Collinwood weather by month
Highs, lows and precipitation from NOAA’s grid at Collinwood’s center; snow, wet days and snow on the ground from Waynesboro, TN. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 49° | 29° | 5.2" | 0.4" | 11 | 0 | 31° – 47° |
| February | 53° | 32° | 5.5" | 0.4" | 10 | 0 | 34° – 51° |
| March | 62° | 38° | 5.6" | 0.5" | 12 | 0 | 44° – 60° |
| April | 72° | 46° | 5.3" | 0.0" | 10 | 0 | 54° – 64° |
| May | 78° | 55° | 4.9" | 0.0" | 11 | 0 | 61° – 72° |
| June | 85° | 63° | 4.9" | 0.0" | 11 | 0 | 70° – 78° |
| July | 88° | 66° | 4.5" | 0.0" | 10 | 0 | 72° – 80° |
| August | 88° | 65° | 4.0" | 0.0" | 9 | 0 | 71° – 83° |
| September | 82° | 58° | 4.0" | 0.0" | 8 | 0 | 66° – 77° |
| October | 72° | 47° | 4.3" | 0.0" | 8 | 0 | 56° – 66° |
| November | 60° | 37° | 4.3" | 0.0" | 9 | 0 | 43° – 54° |
| December | 51° | 31° | 6.3" | 0.0" | 11 | 0 | 30° – 51° |
| Year | 70° | 47° | 59.0" | 1.3" | 120 | 0 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 30° to 51°. June is the most reliable, staying within 8°.
Where Collinwood’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 Collinwood’s center.
- Snow: Waynesboro, TN.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Waynesboro, TN, 9 miles from the town’s center, 260 ft lower; 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 Collinwood’s climate
What is the weather like in Collinwood?
A typical July afternoon reaches 88°, a January night drops to 29°, and about 1 inches of snow falls in a normal winter. Milder January nights than 70% of U.S. towns; hotter July afternoons than 67% of U.S. towns.
How cold does it get in Collinwood in winter?
January nights average 29°. About 99 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 31°.
How much snow does Collinwood get?
About 1.3 inches in a normal winter at Waynesboro, TN, most of it in March, with snow on the ground about 0 days a year.
How hot does it get in Collinwood?
July, with a typical high of 88° and a low of 66°. About 39 days a year reach 90° (Waynesboro, TN).
When is the first and last frost in Collinwood?
In half of years the last spring frost (32°) comes by April 14 and the first fall frost by October 24, about 192 frost-free days, at Waynesboro, TN.
What growing zone is Collinwood in?
Zone 7b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 6°.
What is the best time of year to visit Collinwood?
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 Collinwood getting warmer?
Yes: 1991–2020 averaged 0.7° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 94% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Collinwood.
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.