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

Kapp Heights

877 people, 550 ft above sea level in Northumberland County.

550 ftElevation, city center
877People, 2024 estimate
0 sq miLand area
Clear 45°
Clear now Dew point 33° · Calm · high 41°
City of Kapp Heights River Interstate 2 miles
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The Kapp Heights 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 Kapp Heights

NWS forecast and National Blend of Models · updated 7:00 PM EST
RIGHT NOW Selinsgrove Penn Valley Airport (KSEG) · 7:53 PM
Clear
45° Clear Feels like 45° · high of 41° near 8 PM
WindCalmno gusts
Humidity63%rising to 92% by morning
Pressure29.96 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 Northumberland County
NWS State College and the Storm Prediction Center · checked 8:47 PM
SUN & MOON
↑ 6:53 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
8p
11p
2a
5a
8a
11a
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11p
2a
5a
8a
11a
2p
5p
8p
11p
2a
5a
8a
11a
2p
5p
overcast
partly cloudy night
partly cloudy night
partly cloudy night
mostly sunny
mostly cloudy day
mostly cloudy day
mostly 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
mostly sunny
clear night
TEMPERATURE °F
41°
33°
49°
33°
52°
28°
55°
CHANCE OF RAIN
50%
WIND, MPH
7
6
6
6
8
9
9
5
3
1
2
2
5
6
4
1
0
0
0
0
0
2
1
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
41° 29°
10% rain — WNW 7 A
SUN Nov. 15 Partly cloudy; warmer Partly cloudy; warmer
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 — SSW 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 Kapp Heights about 5,000 feet above the ground was over the Canadian Prairies three days ago, and over the Great Lakes a day ago, about 1,970 miles back along its path. It rose from near the ground on the way. Near the ground the air came from Canada; 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, SIX YEARS AGO Nov. 11, 2020

The hottest this week has been

74° on Nov. 11, 2020, the hottest reading for this week of the year since 1926. Next is 72° in 1973.

72°
74°
19732020
Source: NOAA RCC-ACIS, the Sunbury record since 1926.
MILE2
THE GROUND

What Kapp Heights stands on

Kapp Heights’s center stands about 550 ft above sea level. Within three miles the land runs from 420 ft to 1,320 ft, a difference of 900 ft: hilly country. The highest named summit within 15 miles is Catharines Crown, about 1,950 ft, 15 miles northwest.

Under the town center the state geologic map shows Irish Valley Member of Catskill Formation (siltstone), from the Late Devonian, 359 to 384 million years old.

The section below crosses 13 rock units mapped at the surface.

Jackson to McEwensville, cut in half

A section south to north, 24 miles through the town center
500 ft750 ft1,000 ft1,250 ft KAPP HEIGHTS550 ftHigh point of the line1,470 ftShamokin Dam440 ftTurbot570 ft ← S · JacksonMcEwensville · N →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 18×. 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

Hamilton Group

Black-shale. Age: Early Devonian to Middle Devonian, 384 to 422 million years old. About 6 mi of the line.

Wills Creek Formation

Shale. Age: Silurian, 422 to 445 million years old. About 4 mi of the line.

Keyser and Tonoloway Formations, undivided

Limestone. Age: Silurian to Devonian, 359 to 445 million years old. About 2 mi of the line.

Irish Valley Member of Catskill Formation

Siltstone. Age: Late Devonian, 359 to 384 million years old. About 2 mi of the line.

Trimmers Rock Formation

Siltstone, shale. Age: Late Devonian, 359 to 384 million years old. About 2 mi of the line.

Sherman Creek Member of Catskill Formation

Siltstone, mudstone. Age: Late Devonian, 359 to 384 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. 7 smaller units along the line are not listed.

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 Kapp Heights’s rain goes

A raindrop that lands in Kapp Heights reaches Chesapeake Bay and the Atlantic Ocean by way of the West Branch Susquehanna and the Susquehanna: about 130 river miles.

THE WAY DOWN, TO SCALE
Kapp Heights≈ 130 mi · Chesapeake Bay and the Atlantic Ocean
FROM THE CENTER OF KAPP HEIGHTS ≈ 130 mi to Chesapeake Bay and the Atlantic Ocean 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 Kapp Heights; river miles along the main stem, rounded.

MILE5
THE ALMANAC

Kapp Heights’s year

1991–2020 normals · records since 1926 · Sunbury, 3 mi southeast

Kapp Heights 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°21°48°27°61°37°72°47°80°57°84°60°82°59°75°51°64°40°51°32°40°25° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 12 TODAY KAPP HEIGHTS 43.7 in rain and snowmelt
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, average35° / 19°high / low, the coldest month
Rain and melted snow43.7 inwettest months: September and June
Snow a year28.6 insnowiest: February
Hottest on record102°FJuly 4, 1966
Coldest on record−15°FJanuary 22, 1961
Wettest day on record7.45 inJune 22, 1972
Snowiest day on record19.0 inJanuary 20, 1936
90° days a year15very few reach 100°
Nights at or below 32°135and 29 days that stay below freezing
Climate typeHot-summer humid continentalKöppen Dfa

AROUND THE RING

1Freeze seasonfrom the first fall freeze, about Oct. 15, to the last in spring, about April 30 (median dates)
2Lows below freezingNov. 13 to April 1; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 Kapp Heights normally reaches 51° and falls to 32°. The record high is 70°, in 1964; the record low 18°, in 2019. The most rain on this date, 0.97 in, fell in 1972.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high35°39°48°61°72°80°84°82°75°64°51°40°
Normal low19°21°27°37°47°57°60°59°51°40°32°25°
Rain and melt, in2.982.303.333.743.774.384.323.934.523.923.163.34
Snow, inches7.68.65.20.60.00.00.00.00.00.21.54.9
Record high71° (1967)77° (2018)81° (2007)92° (2009)97° (1975)100° (1959)102° (1966)99° (2001)96° (1964)91° (2007)81° (2024)71° (2006)
Record low−15° (1961)−10° (1967)−1° (2003)16° (1964)28° (2005)37° (2009)41° (2008)41° (2025)27° (1963)0° (1956)8° (1964)−12° (1960)

Normals 1991–2020 and records since 1926 at Sunbury, 3 miles southeast. NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Kapp Heights on the Forecast Network

Neighboring plates

Williamsport PA · 26 MI 26 miles northwest Philadelphia PA · 107 MI 107 miles southeast Baltimore MD · 111 MI 111 miles south Washington DC · 138 MI 138 miles south New York NY · 151 MI 151 miles east
FORECASTCITY
Map of Kapp Heights, Pennsylvania. Explore the plate
PENNSYLVANIA · NORTHUMBERLAND

Kapp Heights

877 people, 550 ft above sea level in Northumberland County.

550 ftElevation
877People
0 sq miLand
Clear 45°
ClearDew point 33°
1

Today in Kapp Heights

NEXT 15 HOURS
Now mostly cloudy night 41° 5%
11p partly cloudy night 39° 5%
2a partly cloudy night 37° 1%
5a partly cloudy night 34° 0%
8a mostly sunny 36° 0%
11a mostly cloudy day 46° 1%
Clear
NEXT RAINNone this week
→
Sat10%
Mostly cloudy Mostly cloudy
29
41
A
Sun0%
Partly cloudy; warmer Partly cloudy; warmer
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, SIX YEARS AGO · NOV. 11, 2020

74°, the hottest this week of the year has been since 1926.

2

What Kapp Heights stands on

Kapp Heights’s center stands about 550 ft above sea level. Within three miles the land runs from 420 ft to 1,320 ft, a difference of 900 ft: hilly country. The highest named summit within 15 miles is Catharines Crown, about 1,950 ft, 15 miles northwest.

Kapp Heights, south to north Kapp Heights550 ft ← SN → 24 miles through the town center; vertical exaggeration about 35×. Colors: rock at the surface.
Elevation, center550 ft
Within 3 miles420 to 1,320 ft
Lie of the landHilly (900 ft of relief)
High point nearbyCatharines Crown, 1,950 ft, 15 mi northwest
Rock at the surfaceIrish Valley Member of Catskill Formation
Its ageLate Devonian, 359 to 384 million years old
5

Kapp Heights’s year

Kapp Heights 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 43.7 in
July, average84° / 60° · high / low, the warmest month
January, average35° / 19° · high / low, the coldest month
Rain and melted snow43.7 in · wettest months: September and June
Snow a year28.6 in · snowiest: February
Hottest on record102°F · July 4, 1966
Coldest on record−15°F · January 22, 1961
Wettest day on record7.45 in · June 22, 1972
Snowiest day on record19.0 in · January 20, 1936
90° days a year15 · very few reach 100°
Nights at or below 32°135 · and 29 days that stay below freezing
Climate typeHot-summer humid continental · Köppen Dfa
1Freeze season · from the first fall freeze, about Oct. 15, to the last in spring, about April 30 (median dates)
2Lows below freezing · Nov. 13 to April 1; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 Kapp Heights normally reaches 51° and falls to 32°. The record high is 70°, in 1964; the record low 18°, in 2019. The most rain on this date, 0.97 in, fell in 1972.

Normals 1991–2020 and records since 1926 at Sunbury, 3 miles southeast. NOAA, through RCC-ACIS.
3

Where the rain goes

≈ 130 mito the AtlanticWest Branch Susquehanna → Susquehanna

A raindrop that lands in Kapp Heights reaches Chesapeake Bay and the Atlantic Ocean by way of the West Branch Susquehanna and the Susquehanna: about 130 river miles.

Lake on the way: Lake Aldred.

85 miles of the trip are on the Susquehanna.