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

Sugar Grove

538 people, 1,400 ft above sea level in Warren County.

1,400 ftElevation, city center
538People, 2024 estimate
1 sq miLand area
Clear 36°
Clear now Dew point 36° · NNW 17 mph · high 34°
City of Sugar Grove River Interstate 2 miles
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The Sugar Grove 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 Sugar Grove

NWS forecast and National Blend of Models · updated 8:00 PM EST
RIGHT NOW Chautauqua County/Jamestown Airport (KJHW) · 9:06 PM
Clear
36° Clear Feels like 25° · high of 34° near 9 PM
WindNNW 17 mphgusts 23
Humidity100%rising to 100% by morning
Pressure30.01 in →steady
Visibility7 mihazy
CloudsClear
UV index—no forecast
Dew point 36° · Dryabout the same for three days
DryComfortableStickyMuggyOppressive
NEXT RAIN
Rain
Tonight, about 10 PMin about 1 hours · 30% chance · rain
LIKELY AMOUNT—amounts come within 3 days
LAST RAINNov. 110.01 in · 3 dry days
ALERTS & OUTLOOKS
No watches or warnings for Warren County
NWS State College and the Storm Prediction Center · checked 9:17 PM
SUN & MOON
↑ 7:05 AM4:57 PM ↓
9 h 51 m of daylight, 2 minutes less than yesterday
Waxing crescent, 27% lit. Next full moon: Nov. 24.
AIR & POLLEN
27
GOODAir quality index · ozone
Tomorrow: 15, 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
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
rain
mostly cloudy night
mostly cloudy night
overcast
mostly cloudy day
mostly cloudy day
mostly cloudy day
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
overcast
mostly cloudy day
mostly cloudy day
mostly cloudy day
mostly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy day
partly cloudy day
mostly sunny
clear day
clear night
TEMPERATURE °F
34°
32°
38°
33°
43°
32°
48°
CHANCE OF RAIN
41% · 0.01 in Sunday overnight 50%
WIND, MPH
12
9
9
9
10
10
9
7
7
6
6
6
8
8
8
6
6
6
7
7
8
9
8
6
HOW IT FEELS · DEW POINT
Dry: dew points 28 to 37°

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
34° 32°
30% rain — NW 12 A
SUN Nov. 15 Chance of showers Chance of showers
41° 33°
40% rain — NNW 10 A
MON Nov. 16 Mostly cloudy Mostly cloudy
44° 32°
0% rain — NW 8 A
TUE Nov. 17 Sunny Sunny
49° 30°
0% rain — SW 6 A
WED Nov. 18 Mostly sunny Mostly sunny
54° 32°
0% rain — SSW 7 B
THU Nov. 19 Partly cloudy Partly cloudy
55° 40°
0% rain — SSW 10 B
FRI Nov. 20 Partly cloudy Partly cloudy
55° 39°
0% rain — WSW 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 Sugar Grove about 5,000 feet above the ground was over Canada three days ago, and over Ontario a day ago, about 2,600 miles back along its path. It came down from about 11,500 feet up, warming and drying as it sank. Near the ground the air came from the Canadian Prairies; at 10,000 feet, from British Columbia. 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, SIX YEARS AGO Nov. 11, 2020

The hottest this week has been

77° on Nov. 11, 2020, the hottest reading for this week of the year since 1895. Next is 73° in 1990.

73°
77°
19902020
Source: NOAA RCC-ACIS, the Jamestown Area threaded record since 1895.
MILE2
THE GROUND

What Sugar Grove stands on

Sugar Grove’s center stands about 1,400 ft above sea level. Within three miles the land runs from 1,350 ft to 1,900 ft, a difference of 550 ft: hilly country. The highest named summit within 15 miles is Gardners Rocks, about 2,040 ft, 14 miles east-southeast.

Under the town center the state geologic map shows Chadakoin Formation (siltstone, shale), from the Late Devonian, 359 to 384 million years old.

The section below crosses 5 rock units mapped at the surface.

Clymer to Russell, cut in half

A section northwest to southeast, 24 miles through the town center
1,250 ft1,500 ft1,750 ft SUGAR GROVE1,400 ftHigh point of the line1,970 ftRussell1,260 ft ← NW · ClymerRussell · SE →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 26×. 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

Venango Formation

Siltstone, conglomerate. Age: Late Devonian, 359 to 384 million years old. About 9 mi of the line.

Oswayo and Venango Formations

Shale. Age: Late Devonian, 359 to 384 million years old. About 7 mi of the line.

Chadakoin Formation

Siltstone, shale. Age: Late Devonian, 359 to 384 million years old. About 4 mi of the line.

Conneaut Group, undivided

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

Corry Sandstone through Riceville Formation, undivided

Sandstone, shale. Age: Late Devonian, 359 to 384 million years old. About 2 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 Sugar Grove’s rain goes

A raindrop that lands in Sugar Grove reaches the Gulf of America by way of Stillwater Creek, Conewango Creek, the Allegheny, the Ohio and the Mississippi: about 2,170 river miles.

THE WAY DOWN, TO SCALE
Sugar Grove≈ 2,170 mi · the Gulf of America
FROM THE CENTER OF SUGAR GROVE ≈ 2,170 mi to the Gulf of America Stillwater Creek → Conewango 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 Sugar Grove; river miles along the main stem, rounded.

MILE5
THE ALMANAC

Sugar Grove’s year

1991–2020 normals · records since 1895 · Jamestown 4 ENE, 13 mi northeast

Sugar Grove has a warm-summer humid continental climate. Summer afternoons average 80° in July; winter nights fall to about 16° in January. A normal year brings about 98 inches of snow; with the rain, that comes to about 46 inches of water.

32°16°35°16°44°23°57°34°69°44°76°54°80°58°79°56°73°49°61°39°48°31°37°23° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 123 TODAY SUGAR GROVE 45.9 in rain and snowmelt
Normal high to low, by month Record high to low, by day Rain by month Freezing
July, average80° / 58°high / low, the warmest month
January, average32° / 16°high / low, the coldest month
Rain and melted snow45.9 inwettest months: July and June
Snow a year98.4 insnowiest: January
Hottest on record103°FJune 21, 1988
Coldest on record−31°FFebruary 17, 2015
Wettest day on record4.52 inOctober 16, 1954
Snowiest day on record23.0 inMarch 17, 1936
90° days a year5none reach 100°
Nights at or below 32°154and 51 days that stay below freezing
Climate typeWarm-summer humid continentalKöppen Dfb

AROUND THE RING

1Freeze seasonfrom the first fall freeze, about Oct. 11, to the last in spring, about May 16 (median dates)
2Highs below freezingJan. 11 to Feb. 4; normal highs stay below 32°
3Lows below freezingNov. 8 to April 11; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 Sugar Grove normally reaches 49° and falls to 31°. The record high is 71°, in 2010; the record low 7°, in 1905. The most rain on this date, 0.88 in, fell in 1988.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high32°35°44°57°69°76°80°79°73°61°48°37°
Normal low16°16°23°34°44°54°58°56°49°39°31°23°
Rain and melt, in3.812.703.163.913.944.364.553.594.194.113.693.92
Snow, inches29.819.315.32.70.00.00.00.00.00.49.321.6
Record high72° (1950)73° (2017)82° (1998)92° (1990)93° (1929)103° (1988)100° (1936)99° (1988)98° (1953)88° (1951)80° (1950)73° (1982)
Record low−31° (1904)−31° (2015)−23° (2015)−1° (1923)19° (1987)27° (1986)36° (1985)28° (1986)24° (1904)13° (1985)−6° (1903)−21° (1988)

Normals 1991–2020 and records since 1895 from the Jamestown Area threaded record (Jamestown 4 ENE, 13 miles northeast, 150 ft lower). NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Sugar Grove on the Forecast Network

Neighboring plates

Jamestown NY · 9 MI 9 miles northeast Erie PA · 39 MI 39 miles west Buffalo NY · 67 MI 67 miles north Pittsburgh PA · 112 MI 112 miles south Cleveland OH · 126 MI 126 miles west Detroit MI · 195 MI 195 miles west
FORECASTCITY
Map of Sugar Grove, Pennsylvania. Explore the plate
PENNSYLVANIA · WARREN

Sugar Grove

538 people, 1,400 ft above sea level in Warren County.

1,400 ftElevation
538People
1 sq miLand
Clear 36°
ClearDew point 36°
1

Today in Sugar Grove

NEXT 15 HOURS
Now mostly cloudy night 34° 27%
12a rain 34° 41%
3a mostly cloudy night 33° 9%
6a overcast 32° 11%
9a mostly cloudy day 35° 7%
12p mostly cloudy day 38° 4%
Rain
NEXT RAINTonight about 10 PM · 30%
→
Sat30%
Chance of showers Chance of showers
32
34
A
Sun40%
Chance of showers Chance of showers
33
41
A
Mon0%
Mostly cloudy Mostly cloudy
32
44
A
Tue0%
Sunny Sunny
30
49
A
Wed0%
Mostly sunny Mostly sunny
32
54
B
Thu0%
Partly cloudy Partly cloudy
40
55
B
Fri0%
Partly cloudy Partly cloudy
39
55
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

77°, the hottest this week of the year has been since 1895.

2

What Sugar Grove stands on

Sugar Grove’s center stands about 1,400 ft above sea level. Within three miles the land runs from 1,350 ft to 1,900 ft, a difference of 550 ft: hilly country. The highest named summit within 15 miles is Gardners Rocks, about 2,040 ft, 14 miles east-southeast.

Sugar Grove, northwest to southeast Sugar Grove1,400 ft ← NWSE → 24 miles through the town center; vertical exaggeration about 50×. Colors: rock at the surface.
Elevation, center1,400 ft
Within 3 miles1,350 to 1,900 ft
Lie of the landHilly (550 ft of relief)
High point nearbyGardners Rocks, 2,040 ft, 14 mi east-southeast
Rock at the surfaceChadakoin Formation
Its ageLate Devonian, 359 to 384 million years old
5

Sugar Grove’s year

Sugar Grove has a warm-summer humid continental climate. Summer afternoons average 80° in July; winter nights fall to about 16° in January. A normal year brings about 98 inches of snow; with the rain, that comes to about 46 inches of water.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 123 45.9 in
July, average80° / 58° · high / low, the warmest month
January, average32° / 16° · high / low, the coldest month
Rain and melted snow45.9 in · wettest months: July and June
Snow a year98.4 in · snowiest: January
Hottest on record103°F · June 21, 1988
Coldest on record−31°F · February 17, 2015
Wettest day on record4.52 in · October 16, 1954
Snowiest day on record23.0 in · March 17, 1936
90° days a year5 · none reach 100°
Nights at or below 32°154 · and 51 days that stay below freezing
Climate typeWarm-summer humid continental · Köppen Dfb
1Freeze season · from the first fall freeze, about Oct. 11, to the last in spring, about May 16 (median dates)
2Highs below freezing · Jan. 11 to Feb. 4; normal highs stay below 32°
3Lows below freezing · Nov. 8 to April 11; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 Sugar Grove normally reaches 49° and falls to 31°. The record high is 71°, in 2010; the record low 7°, in 1905. The most rain on this date, 0.88 in, fell in 1988.

Normals 1991–2020 and records since 1895 from the Jamestown Area threaded record (Jamestown 4 ENE, 13 miles northeast, 150 ft lower). NOAA, through RCC-ACIS.
3

Where the rain goes

≈ 2,170 mito the Gulf of AmericaStillwater Creek → Conewango Creek → Allegheny → Ohio → Mississippi

A raindrop that lands in Sugar Grove reaches the Gulf of America by way of Stillwater Creek, Conewango Creek, the Allegheny, the Ohio and the Mississippi: about 2,170 river miles.

970 miles of the trip are on the Ohio.