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

Big Beaver

1,832 people, 1,150 ft above sea level in Beaver County.

1,150 ftElevation, city center
1,832People, 2024 estimate
18 sq miLand area
Clear 41°
Clear now Dew point 34° · NW 9 mph · high 40°
City of Big Beaver River Interstate 2 miles
Explore the plate Order a print

The Big Beaver 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 Big Beaver

NWS forecast and National Blend of Models · updated 5:00 PM EST
RIGHT NOW Beaver County Airport (KBVI) · 5:35 PM
Clear
41° Clear Feels like 36° · high of 40° near 5 PM
WindNW 9 mphgusts 21
Humidity76%rising to 100% by morning
Pressure30.07 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 34° · Dryabout the same for three days
DryComfortableStickyMuggyOppressive
NEXT RAIN
Mostly cloudy
Tomorrow, about 6 AMin about 12 hours · 33% chance · rain
LIKELY AMOUNT—amounts come within 3 days
LAST RAINNov. 80.04 in · 6 dry days
ALERTS & OUTLOOKS
No watches or warnings for Beaver County
NWS Pittsburgh and the Storm Prediction Center · checked 5:47 PM
SUN & MOON
↑ 7:07 AM5:04 PM ↓
9 h 57 m of daylight, 2 minutes less than yesterday
Waxing crescent, 26% lit. Next full moon: Nov. 24.
AIR & POLLEN
14
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 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
partly 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
40°
38°
44°
38°
47°
31°
CHANCE OF RAIN
33% · 0.04 in Sunday morning 50%
WIND, MPH
10
9
7
7
6
6
8
7
3
1
0
0
0
0
2
1
0
0
0
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0
0
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1
HOW IT FEELS · DEW POINT
Dry: dew points 31 to 40°

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
40° 38°
10% rain — W 9 A
SUN Nov. 15 Chance of showers; warmer Chance of showers; warmer
49° 38°
30% rain up to 0.07″ NNW 7 A
MON Nov. 16 Mostly cloudy Mostly cloudy
51° 31°
0% rain — WNW 1 A
TUE Nov. 17 Partly cloudy Partly cloudy
55° 31°
0% rain — SW 5 A
WED Nov. 18 Sunny Sunny
58° 32°
0% rain — S 5 B
THU Nov. 19 Mostly sunny Mostly sunny
61° 41°
0% rain — SSW 5 B
FRI Nov. 20 Mostly sunny Mostly sunny
63° 41°
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 Big Beaver about 5,000 feet above the ground was over British Columbia three days ago, and over the Great Lakes a day ago, about 2,450 miles back along its path. It came down from about 9,500 feet up, warming and drying as it sank. Near the ground the air came from British Columbia; at 10,000 feet, from a point about 3,400 miles to the west. 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, SIX YEARS AGO Nov. 11, 2020

The hottest this week has been

81° on Nov. 11, 2020, the hottest reading for this week of the year since 1961. Next is 75° in 2022.

75°
81°
20222020
Source: NOAA RCC-ACIS, the Montgomery Lock & Dam record since 1961.
MILE2
THE GROUND

What Big Beaver stands on

Big Beaver’s center stands about 1,150 ft above sea level. Within three miles the land runs from 740 ft to 1,270 ft, a difference of 530 ft: hilly country. The highest named summit within 15 miles is Big Knob, about 1,400 ft, 11 miles southeast.

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

Potter to New Castle, cut in half

A section south to north, 24 miles through the town center
800 ft1,000 ft1,200 ft BIG BEAVER1,150 ftOhio Riverabout 670 ftWest Mayfield1,170 ftBeaver Riverabout 780 ftNew Castle970 ft ← S · PotterNew Castle · N →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 32×. 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

Allegheny Formation

Sandstone. Age: Carboniferous, 299 to 324 million years old. About 11 mi of the line.

Glenshaw Formation

Shale. Age: Carboniferous, 299 to 324 million years old. About 8 mi of the line.

Pottsville Formation

Sandstone, conglomerate. 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 Big Beaver’s rain goes

A raindrop that lands in Big Beaver reaches the Gulf of America by way of Clarks Run, the Beaver, the Ohio and the Mississippi: about 1,930 river miles.

THE WAY DOWN, TO SCALE
Big Beaver≈ 1,930 mi · the Gulf of America
FROM THE CENTER OF BIG BEAVER ≈ 1,930 mi to the Gulf of America Clarks Run → 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 Big Beaver; river miles along the main stem, rounded.

MILE5
THE ALMANAC

Big Beaver’s year

1991–2020 normals · records since 1961 · Montgomery Lock & Dam, 12 mi south

Big Beaver has a hot-summer humid continental climate. Summer afternoons average 82° in July; winter nights fall to about 21° in January. About 41 inches of rain fall in a normal year.

35°21°39°22°48°29°61°38°71°49°78°57°82°62°81°61°75°54°63°44°50°33°40°26° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 12 TODAY BIG BEAVER 40.7 in rain a year
Normal high to low, by month Record high to low, by day Rain by month Freezing
July, average82° / 62°high / low, the warmest month
January, average35° / 21°high / low, the coldest month
Rain a year40.7 inwettest months: July and June
Hottest on record105°FJune 11, 1983
Coldest on record−18°FJanuary 21, 1985
Wettest day on record4.99 inJuly 6, 2007
Snowiest day on record17.0 inFebruary 6, 2010
90° days a year6none reach 100°
Nights at or below 32°113and 30 days that stay below freezing
Climate typeHot-summer humid continentalKöppen Dfa

AROUND THE RING

1Freeze seasonfrom the first fall freeze, about Oct. 31, to the last in spring, about April 28 (median dates)
2Lows below freezingNov. 18 to March 30; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 Big Beaver normally reaches 51° and falls to 34°. The record high is 71°, in 1994; the record low 8°, in 1986. The most rain on this date, 0.89 in, fell in 1997.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high35°39°48°61°71°78°82°81°75°63°50°40°
Normal low21°22°29°38°49°57°62°61°54°44°33°26°
Rain, inches2.902.463.123.583.754.294.403.414.142.942.782.92
Record high71° (2005)76° (2000)82° (1998)90° (1976)94° (1962)105° (1983)103° (1988)100° (1988)94° (2026)87° (2019)82° (1987)74° (1982)
Record low−18° (1985)−11° (2015)−4° (1980)14° (1982)26° (1983)34° (1972)42° (2002)39° (1982)30° (1974)19° (1965)−5° (1976)−9° (1983)

Normals 1991–2020 and records since 1961 at Montgomery Lock & Dam, 12 miles south, 460 ft lower. NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Big Beaver on the Forecast Network

Neighboring plates

Youngstown OH · 24 MI 24 miles northwest Pittsburgh PA · 33 MI 33 miles southeast Cleveland OH · 82 MI 82 miles northwest Columbus OH · 150 MI 150 miles southwest Toledo OH · 177 MI 177 miles west Detroit MI · 178 MI 178 miles northwest
FORECASTCITY
Map of Big Beaver, Pennsylvania. Explore the plate
PENNSYLVANIA · BEAVER

Big Beaver

1,832 people, 1,150 ft above sea level in Beaver County.

1,150 ftElevation
1,832People
18 sq miLand
Clear 41°
ClearDew point 34°
1

Today in Big Beaver

NEXT 15 HOURS
Now mostly cloudy night 40° 0%
8p mostly cloudy night 38° 4%
11p mostly cloudy night 38° 8%
2a mostly cloudy night 38° 7%
5a mostly cloudy night 39° 25%
8a mostly cloudy day 39° 13%
Mostly cloudy
NEXT RAINTomorrow about 6 AM · 33%
→
Sat10%
Mostly cloudy Mostly cloudy
38
40
A
Sun30%
Chance of showers; warmer Chance of showers; warmer
38
49
A
Mon0%
Mostly cloudy Mostly cloudy
31
51
A
Tue0%
Partly cloudy Partly cloudy
31
55
A
Wed0%
Sunny Sunny
32
58
B
Thu0%
Mostly sunny Mostly sunny
41
61
B
Fri0%
Mostly sunny Mostly sunny
41
63
B
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK, SIX YEARS AGO · NOV. 11, 2020

81°, the hottest this week of the year has been since 1961.

2

What Big Beaver stands on

Big Beaver’s center stands about 1,150 ft above sea level. Within three miles the land runs from 740 ft to 1,270 ft, a difference of 530 ft: hilly country. The highest named summit within 15 miles is Big Knob, about 1,400 ft, 11 miles southeast.

Big Beaver, south to north Big Beaver1,150 ftOhio Riverabout 670 ftBeaver Riverabout 780 ft ← SN → 24 miles through the town center; vertical exaggeration about 61×. Colors: rock at the surface.
Elevation, center1,150 ft
Within 3 miles740 to 1,270 ft
Lie of the landHilly (530 ft of relief)
High point nearbyBig Knob, 1,400 ft, 11 mi southeast
5

Big Beaver’s year

Big Beaver has a hot-summer humid continental climate. Summer afternoons average 82° in July; winter nights fall to about 21° in January. About 41 inches of rain fall in a normal year.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 12 40.7 in
July, average82° / 62° · high / low, the warmest month
January, average35° / 21° · high / low, the coldest month
Rain a year40.7 in · wettest months: July and June
Hottest on record105°F · June 11, 1983
Coldest on record−18°F · January 21, 1985
Wettest day on record4.99 in · July 6, 2007
Snowiest day on record17.0 in · February 6, 2010
90° days a year6 · none reach 100°
Nights at or below 32°113 · and 30 days that stay below freezing
Climate typeHot-summer humid continental · Köppen Dfa
1Freeze season · from the first fall freeze, about Oct. 31, to the last in spring, about April 28 (median dates)
2Lows below freezing · Nov. 18 to March 30; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 Big Beaver normally reaches 51° and falls to 34°. The record high is 71°, in 1994; the record low 8°, in 1986. The most rain on this date, 0.89 in, fell in 1997.

Normals 1991–2020 and records since 1961 at Montgomery Lock & Dam, 12 miles south, 460 ft lower. NOAA, through RCC-ACIS.
3

Where the rain goes

≈ 1,930 mito the Gulf of AmericaClarks Run → Beaver → Ohio → Mississippi

A raindrop that lands in Big Beaver reaches the Gulf of America by way of Clarks Run, the Beaver, the Ohio and the Mississippi: about 1,930 river miles.

970 miles of the trip are on the Mississippi.