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Shaded-relief map of South Buffalo, Pennsylvania: rivers, roads, the city limits and where the water drains.
PENNSYLVANIA · ARMSTRONG COUNTY

South Buffalo

2,660 people, 1,290 ft above sea level in Armstrong County.

1,290 ftElevation, city center
2,660People, 2024 estimate
27 sq miLand area
Sunny 39°
Sunny now Dew point 36° · W 17 mph · high 41°
City of South Buffalo River Interstate 2 miles
Explore the plate Order a print

The South Buffalo 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 South Buffalo

NWS forecast and National Blend of Models · updated 1:00 PM EST
RIGHT NOW Pittsburgh/Butler Regional Airport (KBTP) · 2:56 PM
Sunny
39° Sunny Feels like 30° · high of 41° near 3 PM
WindW 17 mphgusts 23
Humidity89%rising to 100% by morning
Pressure29.99 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 36° · Dryabout the same for three days
DryComfortableStickyMuggyOppressive
NEXT RAIN
Rain
Today, about 4 PMin about 1 hours · 36% chance · rain
LIKELY AMOUNT—amounts come within 3 days
LAST RAINNov. 70.05 in · 7 dry days
ALERTS & OUTLOOKS
No watches or warnings for Armstrong County
NWS Pittsburgh and the Storm Prediction Center · checked 3:17 PM
SUN & MOON
↑ 7:04 AM5:01 PM ↓
9 h 57 m of daylight, 2 minutes less than yesterday
Waxing crescent, 25% lit. Next full moon: Nov. 24.
AIR & POLLEN
30
GOODAir quality index · ozone
Tomorrow: 25, 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
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
rain
rain
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy day
mostly cloudy day
mostly cloudy day
mostly cloudy day
mostly cloudy night
partly cloudy night
partly cloudy night
mostly cloudy night
mostly cloudy day
mostly cloudy day
mostly cloudy day
partly cloudy day
partly cloudy night
mostly clear night
mostly clear night
mostly clear night
mostly sunny
mostly sunny
clear day
TEMPERATURE °F
41°
36°
44°
35°
45°
28°
CHANCE OF RAIN
36% · 0.01 in Saturday afternoon 50%
WIND, MPH
13
12
10
8
7
7
9
10
9
5
0
0
0
0
5
6
5
0
0
0
0
0
1
5
HOW IT FEELS · DEW POINT
Dry: dew points 28 to 39°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 80° / 62°
SAT Nov. 14 Chance of showers Chance of showers
41° 32°
40% rain — WNW 13 A
SUN Nov. 15 Chance of showers Chance of showers
46° 32°
30% rain — NNW 9 A
MON Nov. 16 Mostly cloudy Mostly cloudy
48° 25°
0% rain — NW 4 A
TUE Nov. 17 Partly cloudy Partly cloudy
52° 26°
0% rain — SW 5 B
WED Nov. 18 Sunny Sunny
55° 27°
0% rain — S 5 B
THU Nov. 19 Partly cloudy Partly cloudy
58° 36°
0% rain — SSW 5 B
FRI Nov. 20 Mostly sunny Mostly sunny
59° 37°
0% rain — SW 5 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 South Buffalo about 5,000 feet above the ground was over the Gulf of Alaska three days ago, and over Ontario a day ago, about 2,580 miles back along its path. It came down from about 12,600 feet up, warming and drying as it sank. Near the ground the air came from the Canadian Prairies; at 10,000 feet, from the open Pacific. It feels dry all the same. 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 1994 Nov. 14, 1994

The hottest this week has been

76° on Nov. 14, 1994, the hottest reading for this week of the year since 1943. Next is 75° in 1949.

75°
76°
19491994
Source: NOAA RCC-ACIS, the Ford City 4 S Dam record since 1943.
MILE2
THE GROUND

What South Buffalo stands on

South Buffalo’s center stands about 1,290 ft above sea level. Within three miles the land runs from 750 ft to 1,330 ft, a difference of 580 ft: hilly country.

Under the town center the state geologic map shows Glenshaw Formation (shale), from the Carboniferous, 299 to 324 million years old.

The section below crosses 2 rock units mapped at the surface.

Orchard Hills to Fenelton, cut in half

A section south to north, 24 miles through the town center
750 ft1,000 ft1,250 ft SOUTH BUFFALO1,290 ftVandergrift950 ftLeechburg790 ftGilpin1,200 ftAllegheny Riverabout 750 ftHigh point of the line1,440 ft ← S · Orchard HillsFenelton · N →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 28×. 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

Glenshaw Formation

Shale. Age: Carboniferous, 299 to 324 million years old. About 20 mi of the line.

Allegheny Formation

Sandstone. Age: Carboniferous, 299 to 324 million years old. About 5 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 South Buffalo’s rain goes

A raindrop that lands in South Buffalo reaches the Gulf of America by way of Buffalo Creek, the Allegheny, the Ohio and the Mississippi: about 1,980 river miles.

THE WAY DOWN, TO SCALE
South Buffalo≈ 1,980 mi · the Gulf of America
FROM THE CENTER OF SOUTH BUFFALO ≈ 1,980 mi to the Gulf of America Buffalo Creek → Allegheny → Ohio → Mississippi

970 miles of the trip are on the Ohio.

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

MILE5
THE ALMANAC

South Buffalo’s year

1991–2020 normals · records since 1943 · Ford City 4 S Dam, 7 mi east

South Buffalo has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 17° in January. About 44 inches of rain fall in a normal year.

36°17°39°18°48°26°62°35°72°46°80°55°84°60°83°58°76°51°64°39°51°30°40°23° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 12 TODAY 44.3 in rain a year
Normal high to low, by month Record high to low, by day Rain by month Freezing
July, average84° / 60°high / low, the warmest month
January, average36° / 17°high / low, the coldest month
Rain a year44.3 inwettest months: June and July
Hottest on record104°FJuly 23, 2011
Coldest on record−29°FJanuary 19, 1994
Wettest day on record7.00 inSeptember 18, 2004
Snowiest day on record17.0 inDecember 10, 1992
90° days a year17very few reach 100°
Nights at or below 32°141and 30 days that stay below freezing
Climate typeHot-summer humid continentalKöppen Dfa

AROUND THE RING

1Freeze seasonfrom the first fall freeze, about Oct. 14, to the last in spring, about May 6 (median dates)
2Lows below freezingNov. 6 to April 8; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 South Buffalo normally reaches 52° and falls to 30°. The record high is 76°, in 1994; the record low 9°, in 1986. The most rain on this date, 0.75 in, fell in 2007.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high36°39°48°62°72°80°84°83°76°64°51°40°
Normal low17°18°26°35°46°55°60°58°51°39°30°23°
Rain, inches3.202.613.253.663.994.694.454.224.223.343.313.38
Record high76° (1950)77° (2017)87° (1998)91° (1985)96° (2000)99° (1988)104° (2011)98° (1995)98° (1953)91° (2019)84° (2026)75° (1998)
Record low−29° (1994)−23° (2015)−12° (2015)10° (1982)21° (1947)32° (1949)32° (1986)36° (1965)27° (1957)16° (1952)4° (1976)−19° (1945)

Normals 1991–2020 and records since 1943 at Ford City 4 S Dam, 7 miles east, 360 ft lower. NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around South Buffalo on the Forecast Network

Neighboring plates

Pittsburgh PA · 26 MI 26 miles southwest Hempfield PA · 31 MI 31 miles south Cleveland OH · 118 MI 118 miles northwest Arlington VA · 186 MI 186 miles southeast Washington DC · 188 MI 188 miles southeast Baltimore MD · 188 MI 188 miles southeast
FORECASTCITY
Map of South Buffalo, Pennsylvania. Explore the plate
PENNSYLVANIA · ARMSTRONG

South Buffalo

2,660 people, 1,290 ft above sea level in Armstrong County.

1,290 ftElevation
2,660People
27 sq miLand
Sunny 39°
SunnyDew point 36°
1

Today in South Buffalo

NEXT 15 HOURS
Now mostly cloudy day 41° 25%
6p mostly cloudy night 39° 24%
9p mostly cloudy night 35° 29%
12a rain 36° 30%
3a mostly cloudy night 36° 27%
6a mostly cloudy night 36° 15%
Rain
NEXT RAINToday about 4 PM · 36%
→
Sat40%
Chance of showers Chance of showers
32
41
A
Sun30%
Chance of showers Chance of showers
32
46
A
Mon0%
Mostly cloudy Mostly cloudy
25
48
A
Tue0%
Partly cloudy Partly cloudy
26
52
B
Wed0%
Sunny Sunny
27
55
B
Thu0%
Partly cloudy Partly cloudy
36
58
B
Fri0%
Mostly sunny Mostly sunny
37
59
B
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK IN 1994 · NOV. 14, 1994

76°, the hottest this week of the year has been since 1943.

2

What South Buffalo stands on

South Buffalo’s center stands about 1,290 ft above sea level. Within three miles the land runs from 750 ft to 1,330 ft, a difference of 580 ft: hilly country.

South Buffalo, south to north South Buffalo1,290 ftAllegheny Riverabout 750 ft ← SN → 24 miles through the town center; vertical exaggeration about 54×. Colors: rock at the surface.
Elevation, center1,290 ft
Within 3 miles750 to 1,330 ft
Lie of the landHilly (580 ft of relief)
Rock at the surfaceGlenshaw Formation
Its ageCarboniferous, 299 to 324 million years old
5

South Buffalo’s year

South Buffalo has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 17° in January. About 44 inches of rain fall in a normal year.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 12 44.3 in
July, average84° / 60° · high / low, the warmest month
January, average36° / 17° · high / low, the coldest month
Rain a year44.3 in · wettest months: June and July
Hottest on record104°F · July 23, 2011
Coldest on record−29°F · January 19, 1994
Wettest day on record7.00 in · September 18, 2004
Snowiest day on record17.0 in · December 10, 1992
90° days a year17 · very few reach 100°
Nights at or below 32°141 · and 30 days that stay below freezing
Climate typeHot-summer humid continental · Köppen Dfa
1Freeze season · from the first fall freeze, about Oct. 14, to the last in spring, about May 6 (median dates)
2Lows below freezing · Nov. 6 to April 8; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 South Buffalo normally reaches 52° and falls to 30°. The record high is 76°, in 1994; the record low 9°, in 1986. The most rain on this date, 0.75 in, fell in 2007.

Normals 1991–2020 and records since 1943 at Ford City 4 S Dam, 7 miles east, 360 ft lower. NOAA, through RCC-ACIS.
3

Where the rain goes

≈ 1,980 mito the Gulf of AmericaBuffalo Creek → Allegheny → Ohio → Mississippi

A raindrop that lands in South Buffalo reaches the Gulf of America by way of Buffalo Creek, the Allegheny, the Ohio and the Mississippi: about 1,980 river miles.

970 miles of the trip are on the Ohio.