Clarkson, KY climate
Clarkson has chilly winters and warm summers, with plenty of rain. A typical July afternoon reaches 88°, a January night drops to 25°, and about 9 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decade14° warmer than normal today. The forecast high is 90°, and a typical Oct 1 in Clarkson peaks around 76°.Live forecast: National Weather Service · Normal: NOAA 1991–2020
What a year in Clarkson feels like
Winter
Spring
Summer
Fall
Clarkson 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 | 30-yr range |
|---|---|---|---|---|---|---|
| January | 44° | 25° | 3.7" | 4.0" | 11 | 26° – 43° |
| February | 49° | 28° | 4.1" | 2.1" | 10 | 26° – 46° |
| March | 58° | 35° | 4.9" | 0.8" | 12 | 39° – 59° |
| April | 69° | 44° | 5.1" | 0.1" | 11 | 51° – 62° |
| May | 77° | 53° | 5.5" | 0 | 11 | 59° – 72° |
| June | 85° | 62° | 4.9" | 0 | 11 | 69° – 78° |
| July | 88° | 65° | 4.7" | 0 | 9 | 72° – 82° |
| August | 87° | 63° | 3.5" | 0 | 7 | 71° – 82° |
| September | 82° | 56° | 3.6" | 0 | 8 | 65° – 74° |
| October | 70° | 45° | 4.0" | 0 | 8 | 54° – 64° |
| November | 58° | 35° | 3.9" | 0 | 9 | 39° – 52° |
| December | 47° | 28° | 4.8" | 2.4" | 12 | 26° – 49° |
| Year | 68° | 45° | 52.5" | 9.4" | 117 |
“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 Clarkson
Clarkson gets 53 inches of rain and melted snow a year. May is the wettest month and August the driest. Rain or snow falls on about 117 days a year.
About 172 frost-free days a year
In half of years the last 32° night comes by April 26 and the first one by October 15. That leaves about 172 frost-free days for gardens, shorter than 58% of U.S. towns.
Heating and cooling a home in Clarkson
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Clarkson, 84% of that work is heating and 16% is cooling, so the furnace matters far more than the air conditioner.
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 Clarkson 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 Clarkson averaged 1.0° warmer than the 1900s. The biggest change is in February (+1.9°). The shift is smaller than in 68% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Clarkson’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 26° to 49°. June is the most reliable, staying within 9°.
Common questions about Clarkson’s climate
What is the coldest month in Clarkson?
January, with a typical high of 44° and a low of 25°.
What is the hottest month in Clarkson?
July, with a typical high of 88° and a low of 65°. About 23 days a year reach 90°.
How much snow does Clarkson get?
About 9 inches in a normal winter, most of it in January.
When is the first frost in Clarkson?
In half of years the first 32° night comes by October 15, and the last spring frost by April 26.
What is the rainiest month in Clarkson?
May, with 5.5 inches of rain and melted snow. The year totals 53 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Clarkson itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Leitchfield 2 N, KY (3 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.