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Shaded-relief map of Clarkson, Kentucky: rivers, roads, the city limits and where the water drains.
KENTUCKY · GRAYSON COUNTY

Clarkson

967 people, 710 ft above sea level in Grayson County.

710 ftElevation, city center
967People, 2024 estimate
1 sq miLand area
Clear 45°
Clear now Dew point 30° · NW 3 mph · high 43°
City of Clarkson River Interstate 2 miles
Explore the plate Order a print

The Clarkson plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.

MILE1
TODAY

Today in Clarkson

NWS forecast and National Blend of Models · updated 4:00 PM CST
RIGHT NOW Breckinridge County Airport (KI93) · 4:55 PM
Clear
45° Clear Feels like 43° · high of 43° near 5 PM
WindNW 3 mphno gusts
Humidity57%rising to 100% by morning
Pressure30.24 in →steady
Visibility9 mihazy
CloudsClear
UV index—no forecast
Dew point 30° · Dry41° by Tuesday: more humid
DryComfortableStickyMuggyOppressive
NEXT RAIN
Clear
Not this weeknone in the forecast for a week
LIKELY AMOUNT—nothing expected
LAST RAINNov. 130.02 in · 1 dry day
ALERTS & OUTLOOKS
No watches or warnings for Grayson County
NWS Louisville and the Storm Prediction Center · checked 5:16 PM
SUN & MOON
↑ 6:23 AM4:35 PM ↓
10 h 11 m of daylight, 2 minutes less than yesterday
Waxing crescent, 26% lit. Next full moon: Nov. 24.
AIR & POLLEN
6
GOODAir quality index · fine particles
No pollen source yet.

The next three days, hour by hour

Sky: clear, cloudy, night Rain likely National Blend of Models
SATURDAY, NOV. 14
SUNDAY, NOV. 15
MONDAY, NOV. 16
TUESDAY, NOV. 17
5p
8p
11p
2a
5a
8a
11a
2p
5p
8p
11p
2a
5a
8a
11a
2p
5p
8p
11p
2a
5a
8a
11a
2p
mostly clear night
clear night
clear night
clear night
mostly sunny
mostly sunny
mostly sunny
partly cloudy day
mostly clear night
mostly clear night
mostly clear night
mostly clear night
partly cloudy day
mostly sunny
mostly sunny
clear day
mostly clear night
clear night
clear night
mostly clear night
mostly sunny
clear day
clear day
clear day
TEMPERATURE °F
43°
27°
52°
29°
52°
29°
CHANCE OF RAIN
50%
WIND, MPH
1
0
0
0
0
2
3
3
1
1
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HOW IT FEELS · DEW POINT
Dry: dew points 27 to 39° ↑ Humid air returns More humid: 38° by Tuesday

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 56° / 35°
SAT Nov. 14 Mostly sunny Mostly sunny
43° 26°
0% rain — NW 1 A
SUN Nov. 15 Mostly sunny; warmer Mostly sunny; warmer
55° 26°
0% rain — NNE 2 B
MON Nov. 16 Mostly sunny Mostly sunny
55° 27°
0% rain — E 3 A
TUE Nov. 17 Sunny Sunny
60° 29°
0% rain — E 1 A
WED Nov. 18 Mostly sunny Mostly sunny
63° 34°
0% rain — SSE 2 A
THU Nov. 19 Partly cloudy Partly cloudy
65° 41°
0% rain — S 2 B
FRI Nov. 20 Mostly sunny Mostly sunny
68° 41°
0% rain — ESE 1 B
How sure are we? AModels agree: highs within 4° BSome spread: within 8° CWide spread: check back
Range from the National Blend of Models percentiles · graded on Forecast Scores
AIR MAIL

Where today’s air came from

The air arriving over Clarkson about 5,000 feet above the ground was over British Columbia three days ago, and over the northern Plains a day ago, about 2,170 miles back along its path. Near the ground the air came from British Columbia; at 10,000 feet, from the Pacific off the Northwest. It has stayed over land, which is why it feels dry. Traced back 72 hours through NOAA’s hourly RAP analyses, nine paths at each of three heights.

THIS WEEK IN 2002 Nov. 11, 2002

The hottest this week has been

81° on Nov. 11, 2002, the hottest reading for this week of the year since 1964. Next is 80° in 1989.

80°
81°
19892002
Source: NOAA RCC-ACIS, the Nolin River Lake record since 1964.
MILE2
THE GROUND

What Clarkson stands on

Clarkson’s center stands about 710 ft above sea level. Within three miles the land runs from 580 ft to 770 ft, a difference of 190 ft: gently rolling country. The highest named summit within 15 miles is Buzzard Roost, about 970 ft, 8 miles southeast.

Under the town center the state geologic map shows Rocks of Chesterian age, upper part (shale), from the Carboniferous, 324 to 359 million years old.

The section below crosses 3 rock units mapped at the surface.

Clarkson, cut in half from southwest to northeast

A section southwest to northeast, 24 miles through the town center
500 ft600 ft700 ft CLARKSON710 ftLow point460 ftBear Creekabout 530 ftDouble S Hill740 ftHigh point of the line800 ft ← SWNE →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 56×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.

Rock at the surface along the line

Rocks of Chesterian age, lower part

Limestone, sandstone. Age: Carboniferous, 324 to 359 million years old. About 13 mi of the line.

Rocks of Chesterian age, upper part

Shale. Age: Carboniferous, 324 to 359 million years old. About 8 mi of the line.

Caseyville Formation

Sandstone. Age: Carboniferous, 299 to 324 million years old. About 3 mi of the line.

From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale.

Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR; rock from the USGS State Geologic Map Compilation.

MILE3
THE WATER

Where Clarkson’s rain goes

A raindrop that lands in Clarkson reaches the Gulf of America by way of Bear Creek, the Green River, the Ohio and the Mississippi: about 1,380 river miles.

THE WAY DOWN, TO SCALE
Clarkson≈ 1,380 mi · the Gulf of America
FROM THE CENTER OF CLARKSON ≈ 1,380 mi to the Gulf of America Bear Creek → Green River → Ohio → Mississippi

970 miles of the trip are on the Mississippi.

Traced down the USGS NHDPlus V2.1 river network from the Census center point of Clarkson; river miles along the main stem, rounded.

MILE5
THE ALMANAC

Clarkson’s year

1991–2020 normals · records since 1964 · Nolin River Lake, 15 mi south

Clarkson has a humid subtropical climate. Summer afternoons average 91° in July; winter nights fall to about 24° in January. About 54 inches of rain fall in a normal year, with about 5 inches of snow.

46°24°51°26°60°33°71°42°79°52°88°61°91°64°91°63°85°56°73°44°60°34°50°28° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 123 TODAY CLARKSON 53.9 in rain a year
Normal high to low, by month Record high to low, by day Rain by month Freezing
July, average91° / 64°high / low, the warmest month
January, average46° / 24°high / low, the coldest month
Rain a year53.9 inwettest months: May and April
Snow a year4.7 insnowiest: February
Hottest on record111°FJuly 6, 2012
Coldest on record−20°FJanuary 18, 1982
Wettest day on record8.50 inJune 28, 2026
Snowiest day on record6.5 inJanuary 30, 2010
90° days a year59about 3 of them 100° or more
Nights at or below 32°107and 11 days that stay below freezing
Climate typeHumid subtropicalKöppen Cfa

AROUND THE RING

1Freeze seasonfrom the first fall freeze, about Oct. 22, to the last in spring, about April 25 (median dates)
2Highs of 90° and upJune 23 to Aug. 29; normal highs reach 90°
3Lows below freezingNov. 21 to March 14; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 Clarkson normally reaches 61° and falls to 34°. The record high is 77°, in 1989; the record low 12°, in 1986. The most rain on this date, 2.18 in, fell in 2024.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high46°51°60°71°79°88°91°91°85°73°60°50°
Normal low24°26°33°42°52°61°64°63°56°44°34°28°
Rain, inches4.074.344.955.145.614.884.583.503.853.913.975.06
Snow, inches1.62.20.40.00.00.00.00.00.00.00.00.5
Record high73° (2013)84° (1997)89° (2026)93° (1989)97° (2012)111° (2012)111° (2012)107° (2007)105° (2011)103° (2019)88° (2016)78° (2013)
Record low−20° (1982)−10° (2015)−1° (1980)17° (1992)29° (2008)34° (1993)45° (1975)43° (1992)29° (1983)20° (1987)3° (1976)−18° (1989)

Normals 1991–2020 and records since 1964 at Nolin River Lake, 15 miles south. NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Clarkson on the Forecast Network

Neighboring plates

Elizabethtown KY · 24 MI 24 miles northeast Bowling Green KY · 37 MI 37 miles south Louisville KY · 56 MI 56 miles northeast Nashville TN · 96 MI 96 miles south Lexington-Fayette urban county KY · 104 MI 104 miles east Indianapolis IN · 158 MI 158 miles north
FORECASTCITY
Map of Clarkson, Kentucky. Explore the plate
KENTUCKY · GRAYSON

Clarkson

967 people, 710 ft above sea level in Grayson County.

710 ftElevation
967People
1 sq miLand
Clear 45°
ClearDew point 30°
1

Today in Clarkson

NEXT 15 HOURS
Now mostly clear night 43° 0%
8p clear night 36° 0%
11p clear night 32° 0%
2a clear night 29° 0%
5a mostly clear night 27° 0%
8a clear day 36° 0%
Clear
NEXT RAINNone this week
→
Sat0%
Mostly sunny Mostly sunny
26
43
A
Sun0%
Mostly sunny; warmer Mostly sunny; warmer
26
55
B
Mon0%
Mostly sunny Mostly sunny
27
55
A
Tue0%
Sunny Sunny
29
60
A
Wed0%
Mostly sunny Mostly sunny
34
63
A
Thu0%
Partly cloudy Partly cloudy
41
65
B
Fri0%
Mostly sunny Mostly sunny
41
68
B
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK IN 2002 · NOV. 11, 2002

81°, the hottest this week of the year has been since 1964.

2

What Clarkson stands on

Clarkson’s center stands about 710 ft above sea level. Within three miles the land runs from 580 ft to 770 ft, a difference of 190 ft: gently rolling country. The highest named summit within 15 miles is Buzzard Roost, about 970 ft, 8 miles southeast.

Clarkson, southwest to northeast Clarkson710 ftBear Creekabout 530 ftDouble S Hill740 ft ← SWNE → 24 miles through the town center; vertical exaggeration about 106×. Colors: rock at the surface.
Elevation, center710 ft
Within 3 miles580 to 770 ft
Lie of the landGently rolling (190 ft of relief)
High point nearbyBuzzard Roost, 970 ft, 8 mi southeast
Rock at the surfaceRocks of Chesterian age, upper part
Its ageCarboniferous, 324 to 359 million years old
5

Clarkson’s year

Clarkson has a humid subtropical climate. Summer afternoons average 91° in July; winter nights fall to about 24° in January. About 54 inches of rain fall in a normal year, with about 5 inches of snow.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 123 53.9 in
July, average91° / 64° · high / low, the warmest month
January, average46° / 24° · high / low, the coldest month
Rain a year53.9 in · wettest months: May and April
Snow a year4.7 in · snowiest: February
Hottest on record111°F · July 6, 2012
Coldest on record−20°F · January 18, 1982
Wettest day on record8.50 in · June 28, 2026
Snowiest day on record6.5 in · January 30, 2010
90° days a year59 · about 3 of them 100° or more
Nights at or below 32°107 · and 11 days that stay below freezing
Climate typeHumid subtropical · Köppen Cfa
1Freeze season · from the first fall freeze, about Oct. 22, to the last in spring, about April 25 (median dates)
2Highs of 90° and up · June 23 to Aug. 29; normal highs reach 90°
3Lows below freezing · Nov. 21 to March 14; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 Clarkson normally reaches 61° and falls to 34°. The record high is 77°, in 1989; the record low 12°, in 1986. The most rain on this date, 2.18 in, fell in 2024.

Normals 1991–2020 and records since 1964 at Nolin River Lake, 15 miles south. NOAA, through RCC-ACIS.
3

Where the rain goes

≈ 1,380 mito the Gulf of AmericaBear Creek → Green River → Ohio → Mississippi

A raindrop that lands in Clarkson reaches the Gulf of America by way of Bear Creek, the Green River, the Ohio and the Mississippi: about 1,380 river miles.

970 miles of the trip are on the Mississippi.