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Shaded-relief map of West Salem, Pennsylvania: rivers, roads, the city limits and where the water drains.
PENNSYLVANIA · MERCER COUNTY

West Salem

3,188 people, 1,030 ft above sea level in Mercer County.

1,030 ftElevation, city center
3,188People, 2024 estimate
37 sq miLand area
Sunny 38°
Sunny now Dew point 37° · W 12 mph · high 41°
City of West Salem River Interstate 2 miles
Explore the plate Order a print

The West Salem 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 West Salem

NWS forecast and National Blend of Models · updated 3:00 PM EST
RIGHT NOW Youngstown-Warren Regional Airport (KYNG) · 3:51 PM
Sunny
38° Sunny Feels like 30° · high of 41° near 4 PM
WindW 12 mphgusts 23
Humidity97%rising to 100% by morning
Pressure30.02 in →steady
Visibility8 mihazy
CloudsClear
UV index—no forecast
Dew point 37° · Dry29° by Tuesday: drier air arrives
DryComfortableStickyMuggyOppressive
NEXT RAIN
Rain
Tomorrow, about 3 AMin about 11 hours · 37% chance · rain
LIKELY AMOUNT—amounts come within 3 days
LAST RAINNov. 120.4 in · 2 dry days
ALERTS & OUTLOOKS
No watches or warnings for Mercer County
NWS Pittsburgh and the Storm Prediction Center · checked 4:17 PM
SUN & MOON
↑ 7:09 AM5:03 PM ↓
9 h 54 m of daylight, 2 minutes less than yesterday
Waxing crescent, 25% lit. Next full moon: Nov. 24.
AIR & POLLEN
19
GOODAir quality index · ozone
Tomorrow: 20, good. 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
4p
7p
10p
1a
4a
7a
10a
1p
4p
7p
10p
1a
4a
7a
10a
1p
4p
7p
10p
1a
4a
7a
10a
1p
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
rain
mostly cloudy day
mostly cloudy day
mostly cloudy day
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy day
mostly cloudy day
mostly cloudy day
partly cloudy night
mostly clear night
mostly clear night
mostly clear night
mostly clear night
mostly sunny
mostly sunny
clear day
TEMPERATURE °F
41°
37°
44°
38°
47°
29°
CHANCE OF RAIN
37% · 0.03 in Sunday overnight 50%
WIND, MPH
14
12
10
9
8
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10
10
8
5
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3
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0
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HOW IT FEELS · DEW POINT
Dry: dew points 29 to 39°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 50° / 34°
SAT Nov. 14 Mostly cloudy Mostly cloudy
41° 33°
30% rain — WNW 14 A
SUN Nov. 15 Chance of showers Chance of showers
46° 34°
40% rain up to 0.05″ NNW 9 A
MON Nov. 16 Mostly cloudy Mostly cloudy
48° 26°
0% rain — WNW 4 A
TUE Nov. 17 Sunny Sunny
52° 27°
0% rain — SW 3 A
WED Nov. 18 Mostly sunny Mostly sunny
55° 29°
0% rain — S 6 A
THU Nov. 19 Partly cloudy Partly cloudy
58° 38°
0% rain — SSW 8 B
FRI Nov. 20 Partly cloudy Partly cloudy
59° 38°
0% rain — SSW 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 West Salem about 5,000 feet above the ground was over Canada three days ago, and over the northern Plains a day ago, about 2,690 miles back along its path. It came down from about 13,200 feet up, warming and drying as it sank. Near the ground the air came from British Columbia; at 10,000 feet, from the Gulf of Alaska. It has stayed over land, which is why it feels dry. Traced back 72 hours through NOAA’s hourly RAP analyses and the GFS beyond them, nine paths at each of three heights.

THIS WEEK IN 1949 Nov. 13, 1949

The hottest this week has been

77° on Nov. 13, 1949, the hottest reading for this week of the year since 1931. Next is 77° in 2020.

77°
77°
20201949
Source: NOAA RCC-ACIS, the Jamestown 2 NW record since 1931.
MILE2
THE GROUND

What West Salem stands on

West Salem’s center stands about 1,030 ft above sea level. Within three miles the land runs from 980 ft to 1,320 ft, a difference of 340 ft: rolling country. The highest named summit within 15 miles is Wheeler Hill, about 1,410 ft, 7 miles east.

Under the town center the state geologic map shows Cuyahoga Group (siltstone, shale), from the Carboniferous, 324 to 359 million years old.

The section below crosses 6 rock units mapped at the surface.

Brookfield Center to Hartstown, cut in half

A section southwest to northeast, 24 miles through the town center
1,000 ft1,200 ft1,400 ft WEST SALEM1,030 ftBrookfield Center940 ftSouth Pymatuning1,020 ftHigh point of the line1,410 ftWest Fallowfield1,200 ft ← SW · Brookfield CenterHartstown · NE →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 37×. 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

Cuyahoga Group

Siltstone, shale. Age: Carboniferous, 324 to 359 million years old. About 9 mi of the line.

Shenango Formation

Sandstone. Age: Carboniferous, 324 to 359 million years old. About 6 mi of the line.

Pottsville Formation

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

Berea Sandstone through Venango Formation, undivided

Shale. Age: Late Devonian, 359 to 384 million years old. About 3 mi of the line.

Maxville Limestone; Rushville, Logan, and Cuyhoga Formations, Undivided

Shale, siltstone, sandstone. Age: Devonian to Carboniferous, 324 to 422 million years old. About 2 mi of the line.

Allegheny and Pottsville Groups, Undivided

Shale, siltstone. Age: Carboniferous, 299 to 324 million years old. About 1 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 West Salem’s rain goes

A raindrop that lands in West Salem reaches the Gulf of America by way of Big Run, the Shenango, the Beaver, the Ohio and the Mississippi: about 2,000 river miles.

THE WAY DOWN, TO SCALE
West Salem≈ 2,000 mi · the Gulf of America
FROM THE CENTER OF WEST SALEM ≈ 2,000 mi to the Gulf of America Big Run → Shenango → Beaver → 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 West Salem; river miles along the main stem, rounded.

MILE5
THE ALMANAC

West Salem’s year

1991–2020 normals · records since 1931 · Jamestown 2 NW, 7 mi north

West Salem has a warm-summer humid continental climate. Summer afternoons average 81° in July; winter nights fall to about 16° in January. A normal year brings about 62 inches of snow; with the rain, that comes to about 44 inches of water.

34°16°36°17°45°24°59°35°70°46°78°54°81°59°80°57°74°51°62°40°50°31°39°23° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 12 TODAY WEST SALEM 43.8 in rain and snowmelt
Normal high to low, by month Record high to low, by day Rain by month Freezing
July, average81° / 59°high / low, the warmest month
January, average34° / 16°high / low, the coldest month
Rain and melted snow43.8 inwettest months: June and July
Snow a year61.5 insnowiest: January
Hottest on record102°FJuly 1, 1941
Coldest on record−27°FFebruary 20, 2015
Wettest day on record5.15 inAugust 14, 1994
Snowiest day on record14.0 inMarch 18, 1973
90° days a year4on average, 1991–2020
Nights at or below 32°145and 40 days that stay below freezing
Climate typeWarm-summer humid continentalKöppen Dfb

AROUND THE RING

1Freeze seasonfrom the first fall freeze, about Oct. 12, to the last in spring, about May 10 (median dates)
2Lows below freezingNov. 11 to April 9; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 West Salem normally reaches 50° and falls to 32°. The record high is 70°, in 1989; the record low 13°, in 1933. The most rain on this date, 1.22 in, fell in 1972.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high34°36°45°59°70°78°81°80°74°62°50°39°
Normal low16°17°24°35°46°54°59°57°51°40°31°23°
Rain and melt, in3.162.263.003.933.924.904.633.774.243.553.223.22
Snow, inches18.613.39.51.60.00.00.00.00.00.15.013.4
Record high70° (1950)75° (2000)84° (1976)89° (1990)93° (1934)98° (1988)102° (1941)99° (1953)99° (1954)88° (1951)81° (1950)73° (1982)
Record low−27° (1994)−27° (2015)−18° (2015)3° (1964)21° (1947)28° (1945)35° (1963)32° (1982)27° (1957)14° (1965)−2° (2014)−19° (1989)

Normals 1991–2020 and records since 1931 at Jamestown 2 NW, 7 miles north. NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around West Salem on the Forecast Network

Neighboring plates

Warren OH · 22 MI 22 miles southwest Youngstown OH · 23 MI 23 miles southwest Cleveland OH · 64 MI 64 miles west Pittsburgh PA · 71 MI 71 miles south Buffalo NY · 131 MI 131 miles northeast Detroit MI · 152 MI 152 miles northwest
FORECASTCITY
Map of West Salem, Pennsylvania. Explore the plate
PENNSYLVANIA · MERCER

West Salem

3,188 people, 1,030 ft above sea level in Mercer County.

1,030 ftElevation
3,188People
37 sq miLand
Sunny 38°
SunnyDew point 37°
1

Today in West Salem

NEXT 15 HOURS
Now mostly cloudy day 41° 17%
7p mostly cloudy night 40° 24%
10p mostly cloudy night 38° 8%
1a mostly cloudy night 38° 13%
4a rain 38° 35%
7a mostly cloudy day 37° 14%
Rain
NEXT RAINTomorrow about 3 AM · 37%
→
Sat30%
Mostly cloudy Mostly cloudy
33
41
A
Sun40%
Chance of showers Chance of showers
34
46
A
Mon0%
Mostly cloudy Mostly cloudy
26
48
A
Tue0%
Sunny Sunny
27
52
A
Wed0%
Mostly sunny Mostly sunny
29
55
A
Thu0%
Partly cloudy Partly cloudy
38
58
B
Fri0%
Partly cloudy Partly cloudy
38
59
B
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK IN 1949 · NOV. 13, 1949

77°, the hottest this week of the year has been since 1931.

2

What West Salem stands on

West Salem’s center stands about 1,030 ft above sea level. Within three miles the land runs from 980 ft to 1,320 ft, a difference of 340 ft: rolling country. The highest named summit within 15 miles is Wheeler Hill, about 1,410 ft, 7 miles east.

West Salem, southwest to northeast West Salem1,030 ft ← SWNE → 24 miles through the town center; vertical exaggeration about 71×. Colors: rock at the surface.
Elevation, center1,030 ft
Within 3 miles980 to 1,320 ft
Lie of the landRolling (340 ft of relief)
High point nearbyWheeler Hill, 1,410 ft, 7 mi east
Rock at the surfaceCuyahoga Group
Its ageCarboniferous, 324 to 359 million years old
5

West Salem’s year

West Salem has a warm-summer humid continental climate. Summer afternoons average 81° in July; winter nights fall to about 16° in January. A normal year brings about 62 inches of snow; with the rain, that comes to about 44 inches of water.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 12 43.8 in
July, average81° / 59° · high / low, the warmest month
January, average34° / 16° · high / low, the coldest month
Rain and melted snow43.8 in · wettest months: June and July
Snow a year61.5 in · snowiest: January
Hottest on record102°F · July 1, 1941
Coldest on record−27°F · February 20, 2015
Wettest day on record5.15 in · August 14, 1994
Snowiest day on record14.0 in · March 18, 1973
90° days a year4 · on average, 1991–2020
Nights at or below 32°145 · and 40 days that stay below freezing
Climate typeWarm-summer humid continental · Köppen Dfb
1Freeze season · from the first fall freeze, about Oct. 12, to the last in spring, about May 10 (median dates)
2Lows below freezing · Nov. 11 to April 9; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 West Salem normally reaches 50° and falls to 32°. The record high is 70°, in 1989; the record low 13°, in 1933. The most rain on this date, 1.22 in, fell in 1972.

Normals 1991–2020 and records since 1931 at Jamestown 2 NW, 7 miles north. NOAA, through RCC-ACIS.
3

Where the rain goes

≈ 2,000 mito the Gulf of AmericaBig Run → Shenango → Beaver → Ohio → Mississippi

A raindrop that lands in West Salem reaches the Gulf of America by way of Big Run, the Shenango, the Beaver, the Ohio and the Mississippi: about 2,000 river miles.

970 miles of the trip are on the Mississippi.