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

Buffalo

3,571 people, 500 ft above sea level in Union County.

500 ftElevation, city center
3,571People, 2024 estimate
30 sq miLand area
Clear 45°
Clear now Dew point 33° · WNW 5 mph · high 42°
City of Buffalo River Interstate 2 miles
Explore the plate Order a print

The 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 Buffalo

NWS forecast and National Blend of Models · updated 6:00 PM EST
RIGHT NOW Selinsgrove Penn Valley Airport (KSEG) · 6:53 PM
Clear
45° Clear Feels like 43° · high of 42° near 7 PM
WindWNW 5 mphno gusts
Humidity63%rising to 92% by morning
Pressure29.94 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 33° · Dryabout the same for three days
DryComfortableStickyMuggyOppressive
NEXT RAIN
Clear
Not this weeknone in the forecast for a week
LIKELY AMOUNT—nothing expected
LAST RAINNov. 130.01 in · 1 dry day
ALERTS & OUTLOOKS
No watches or warnings for Union County
NWS State College and the Storm Prediction Center · checked 7:21 PM
SUN & MOON
↑ 6:54 AM4:50 PM ↓
9 h 56 m of daylight, 2 minutes less than yesterday
Waxing crescent, 27% 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
7p
10p
1a
4a
7a
10a
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7p
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1a
4a
7a
10a
1p
4p
7p
10p
1a
4a
7a
10a
1p
4p
mostly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
mostly sunny
mostly cloudy day
mostly cloudy day
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
mostly cloudy day
mostly cloudy day
partly cloudy day
mostly clear night
mostly clear night
mostly clear night
mostly clear night
mostly clear night
mostly sunny
mostly sunny
clear day
mostly clear night
TEMPERATURE °F
42°
33°
49°
33°
52°
28°
CHANCE OF RAIN
50%
WIND, MPH
7
7
6
6
7
9
9
7
3
2
1
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7
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2
0
0
0
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0
HOW IT FEELS · DEW POINT
Dry: dew points 27 to 35° ↑ Humid air returns More humid: 35° by Tuesday

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 52° / 32°
SAT Nov. 14 Mostly cloudy Mostly cloudy
42° 29°
10% rain — WNW 7 A
SUN Nov. 15 Partly cloudy Partly cloudy
49° 27°
0% rain — NNW 8 A
MON Nov. 16 Partly cloudy Partly cloudy
54° 23°
0% rain — NNW 5 B
TUE Nov. 17 Sunny Sunny
58° 25°
0% rain — W 5 A
WED Nov. 18 Sunny Sunny
60° 26°
0% rain — SW 5 B
THU Nov. 19 Mostly sunny Mostly sunny
61° 30°
0% rain — SW 5 B
FRI Nov. 20 Mostly sunny Mostly sunny
63° 33°
0% rain — WNW 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 Buffalo about 5,000 feet above the ground was over the Canadian Prairies three days ago, and over the Great Lakes a day ago, about 2,210 miles back along its path. It rose from near the ground on the way. Near the ground the air came from British Columbia; at 10,000 feet, from the Gulf of Alaska. 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, NINE YEARS AGO Nov. 11, 2017

The coldest this week has been

10° on Nov. 11, 2017, the coldest reading for this week of the year since 1996. Next is 15° in 2019.

15°
10°
20192017
Source: NOAA RCC-ACIS, the Lewisburg record since 1996.
MILE2
THE GROUND

What Buffalo stands on

Buffalo’s center stands about 500 ft above sea level. Within three miles the land runs from 470 ft to 700 ft, a difference of 230 ft: rolling country. The highest named summit within 15 miles is Jones Mountain, about 2,180 ft, 8 miles west.

Under the town center the state geologic map shows Keyser and Tonoloway Formations, undivided (limestone), from the Silurian to Devonian, 359 to 445 million years old.

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

Adams to McEwensville, cut in half

A section southwest to northeast, 24 miles through the town center
500 ft1,000 ft1,500 ft2,000 ft BUFFALO500 ftHigh point of the line2,050 ftPenns Creekabout 570 ftMifflinburg600 ftKelly510 ftNew Columbia570 ftWest Branch Susquehanna Riverabout 440 ft ← SW · AdamsMcEwensville · NE →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 12×. 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

Wills Creek Formation

Shale. Age: Silurian, 422 to 445 million years old. About 7 mi of the line.

Keyser and Tonoloway Formations, undivided

Limestone. Age: Silurian to Devonian, 359 to 445 million years old. About 7 mi of the line.

Bloomsburg and Mifflintown Formations, undivided

Shale. Age: Silurian, 422 to 445 million years old. About 5 mi of the line.

Tuscarora Formation

Quartzite. Age: Silurian, 422 to 445 million years old. About 3 mi of the line.

Clinton Group

Shale, sandstone. Age: Silurian, 422 to 445 million years old. About 1 mi of the line.

Onondaga and Old Port Formations, undivided

Age: Early Devonian to Middle Devonian, 384 to 422 million years old. About 0.9 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 Buffalo’s rain goes

A raindrop that lands in Buffalo reaches Chesapeake Bay and the Atlantic Ocean by way of the Mill Race, the West Branch Susquehanna and the Susquehanna: about 150 river miles.

THE WAY DOWN, TO SCALE
Buffalo≈ 150 mi · Chesapeake Bay and the Atlantic Ocean
FROM THE CENTER OF BUFFALO ≈ 150 mi to Chesapeake Bay and the Atlantic Ocean Mill Race → West Branch Susquehanna → Susquehanna

Lake on the way: Lake Aldred.

85 miles of the trip are on the Susquehanna.

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

MILE5
THE ALMANAC

Buffalo’s year

1991–2020 normals · records since 1996 · Lewisburg, 5 mi east-southeast

Buffalo has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 19° in January. A normal year brings about 29 inches of snow; with the rain, that comes to about 44 inches of water.

35°19°39°20°48°27°62°37°72°48°80°57°84°62°83°60°75°52°63°41°50°31°40°24° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 12 TODAY BUFFALO 43.9 in rain and snowmelt
Normal high to low, by month Rain by month Freezing
July, average84° / 62°high / low, the warmest month
January, average35° / 19°high / low, the coldest month
Rain and melted snow43.9 inwettest months: July and September
Snow a year28.8 insnowiest: January
Hottest on record100°FJuly 23, 2011
Coldest on record−13°FJanuary 18, 2009
Wettest day on record6.77 inSeptember 7, 1999
Snowiest day on record13.7 inDecember 17, 2020
90° days a year13very few reach 100°
Nights at or below 32°133and 28 days that stay below freezing
Climate typeHot-summer humid continentalKöppen Dfa

AROUND THE RING

1Freeze seasonfrom the first fall freeze, about Oct. 19, to the last in spring, about April 26 (median dates)
2Lows below freezingNov. 11 to April 2; normal lows fall below 32°
MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high35°39°48°62°72°80°84°83°75°63°50°40°
Normal low19°20°27°37°48°57°62°60°52°41°31°24°
Rain and melt, in3.132.413.483.753.933.744.494.284.413.813.103.35
Snow, inches8.07.85.30.80.00.00.00.00.00.21.35.4

Normals 1991–2020 and records since 1996 at Lewisburg, 5 miles east-southeast. NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Buffalo on the Forecast Network

Neighboring plates

Williamsport PA · 19 MI 19 miles north Philadelphia PA · 117 MI 117 miles southeast Washington DC · 142 MI 142 miles south New York NY · 160 MI 160 miles east Hempstead NY · 178 MI 178 miles east
FORECASTCITY
Map of Buffalo, Pennsylvania. Explore the plate
PENNSYLVANIA · UNION

Buffalo

3,571 people, 500 ft above sea level in Union County.

500 ftElevation
3,571People
30 sq miLand
Clear 45°
ClearDew point 33°
1

Today in Buffalo

NEXT 15 HOURS
Now mostly cloudy night 42° 9%
10p mostly cloudy night 39° 7%
1a partly cloudy night 37° 1%
4a partly cloudy night 35° 0%
7a mostly sunny 33° 0%
10a mostly sunny 43° 1%
Clear
NEXT RAINNone this week
→
Sat10%
Mostly cloudy Mostly cloudy
29
42
A
Sun0%
Partly cloudy Partly cloudy
27
49
A
Mon0%
Partly cloudy Partly cloudy
23
54
B
Tue0%
Sunny Sunny
25
58
A
Wed0%
Sunny Sunny
26
60
B
Thu0%
Mostly sunny Mostly sunny
30
61
B
Fri0%
Mostly sunny Mostly sunny
33
63
B
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK, NINE YEARS AGO · NOV. 11, 2017

10°, the coldest this week of the year has been since 1996.

2

What Buffalo stands on

Buffalo’s center stands about 500 ft above sea level. Within three miles the land runs from 470 ft to 700 ft, a difference of 230 ft: rolling country. The highest named summit within 15 miles is Jones Mountain, about 2,180 ft, 8 miles west.

Buffalo, southwest to northeast Buffalo500 ftPenns Creekabout 570 ftWest Branch Susquehanna Riverabout 440 ft ← SWNE → 24 miles through the town center; vertical exaggeration about 23×. Colors: rock at the surface.
Elevation, center500 ft
Within 3 miles470 to 700 ft
Lie of the landRolling (230 ft of relief)
High point nearbyJones Mountain, 2,180 ft, 8 mi west
Rock at the surfaceKeyser and Tonoloway Formations, undivided
Its ageSilurian to Devonian, 359 to 445 million years old
5

Buffalo’s year

Buffalo has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 19° in January. A normal year brings about 29 inches of snow; with the rain, that comes to about 44 inches of water.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 12 43.9 in
July, average84° / 62° · high / low, the warmest month
January, average35° / 19° · high / low, the coldest month
Rain and melted snow43.9 in · wettest months: July and September
Snow a year28.8 in · snowiest: January
Hottest on record100°F · July 23, 2011
Coldest on record−13°F · January 18, 2009
Wettest day on record6.77 in · September 7, 1999
Snowiest day on record13.7 in · December 17, 2020
90° days a year13 · very few reach 100°
Nights at or below 32°133 · and 28 days that stay below freezing
Climate typeHot-summer humid continental · Köppen Dfa
1Freeze season · from the first fall freeze, about Oct. 19, to the last in spring, about April 26 (median dates)
2Lows below freezing · Nov. 11 to April 2; normal lows fall below 32°
Normals 1991–2020 and records since 1996 at Lewisburg, 5 miles east-southeast. NOAA, through RCC-ACIS.
3

Where the rain goes

≈ 150 mito the AtlanticMill Race → West Branch Susquehanna → Susquehanna

A raindrop that lands in Buffalo reaches Chesapeake Bay and the Atlantic Ocean by way of the Mill Race, the West Branch Susquehanna and the Susquehanna: about 150 river miles.

Lake on the way: Lake Aldred.

85 miles of the trip are on the Susquehanna.