Photo: Brian Stansberry · CC BY 4.0More precipitation falls on Clay than on 81% of U.S. towns: 49 inches a year
Deep winter brings January lows near 26°. The seasons are far apart: from a winter night to a summer afternoon the average spans 63°. In July, afternoons here are warmer than in 72% of U.S. towns. Radiators earn their keep from November to March, the months that average under 50°.
A year in Clay at a glance
Each month’s typical high and low, and what it brings.
What stands out about Clay’s climate
Compared with towns across the U.S., with Clay’s place in Kentucky beside it.
What a year in Clay feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 203 frost-free days a year
In half of years the last 32° night comes by April 7 and the first by October 28. Frost and day counts come from NOAA’s station at Providence, KY, 6 miles from the town’s center, at about the same height.
The 2023 USDA map puts Clay’s center in zone 7a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 2°. 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 12 inches of snow a winter
Snow, measured at Henderson 8 Ssw, KY, falls mostly in January. Precipitation (rain plus melted snow) adds up to 49 inches a year; May is the wettest month and August the driest. Rain or snow falls on about 114 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Clay
73% 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 Providence, KY.
Living with Clay’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
203 frost-free days in zone 7a. The last frost comes by Apr 7 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 28.
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 Clay from natural hazards, river flooding is the largest share (42%); heat waves, cold waves, winter storms and ice storms together are 12%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Clay and similar climates
TownRatings has no climate map of the towns around Clay yet.
Climates most like Clay’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 |
|---|---|---|---|---|
| Clay, KY | 26° | 89° | 49" | 12" |
| Rogers, AR | 26° | 89° | 48" | 9.5" |
| Seaford, DE | 27° | 89° | 46" | 13" |
| Glen Allen, VA | 27° | 89° | 46" | 15" |
| Aurora, MO | 24° | 89° | 47" | 12" |
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 Clay averaged 0.7° warmer than the 1900s. The biggest change is in February (+1.5°).
A smaller shift than in 93% 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 Clay compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Clay’s place among Kentucky’s.
Clay weather by month
Highs, lows and precipitation from NOAA’s grid at Clay’s center; snow, wet days and snow on the ground from Henderson 8 Ssw, KY. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 43° | 26° | 3.5" | 4.3" | 10 | 27° – 44° |
| February | 48° | 29° | 3.8" | 3.2" | 9 | 27° – 48° |
| March | 58° | 37° | 4.8" | 1.7" | 12 | 40° – 61° |
| April | 69° | 46° | 4.9" | 0.0" | 12 | 51° – 63° |
| May | 78° | 57° | 4.9" | 0.0" | 12 | 62° – 74° |
| June | 86° | 65° | 4.4" | 0.0" | 10 | 71° – 80° |
| July | 89° | 69° | 4.5" | 0.0" | 9 | 74° – 84° |
| August | 88° | 67° | 3.0" | 0.0" | 7 | 72° – 84° |
| September | 82° | 59° | 3.4" | 0.0" | 7 | 67° – 77° |
| October | 71° | 47° | 3.6" | 0.2" | 8 | 55° – 64° |
| November | 57° | 37° | 3.9" | 0.1" | 9 | 40° – 54° |
| December | 47° | 30° | 4.3" | 2.9" | 10 | 25° – 48° |
| Year | 68° | 47° | 49.1" | 12.4" | 114 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 25° to 48°. June is the most reliable, staying within 9°.
Where Clay’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 Clay’s center.
- Snow: Henderson 8 Ssw, KY.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Providence, KY, 6 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 Clay’s climate
What is the weather like in Clay?
A typical July afternoon reaches 89°, a January night drops to 26°, and about 12 inches of snow falls in a normal winter. Milder January nights than 66% of U.S. towns; hotter July afternoons than 72% of U.S. towns.
How cold does it get in Clay in winter?
January nights average 26°. About 93 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 27°.
How much snow does Clay get?
About 12 inches in a normal winter at Henderson 8 Ssw, KY, most of it in January.
How hot does it get in Clay?
July, with a typical high of 89° and a low of 69°. About 56 days a year reach 90° and 2 reach 100° (Providence, KY).
When is the first and last frost in Clay?
In half of years the last spring frost (32°) comes by April 7 and the first fall frost by October 28, about 203 frost-free days, at Providence, KY.
What growing zone is Clay in?
Zone 7a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 2°.
What is the best time of year to visit Clay?
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 Clay getting warmer?
Yes: 1991–2020 averaged 0.7° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 93% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Clay.
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.