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Newville Historic DistrictNewville Historic District · Photo: Jerrye & Roy Klotz, MD · CC BY-SA 4.0
Climate in Newville · NOAA 1991–2020 normals

For weather, Newville is about as ordinary as U.S. towns get

The depth of winter brings overnight lows near 22°. Expect the heaviest rain or snow in September and the lightest in February. The frost-free window for a garden runs roughly April 18 to October 26.

More snow than 63% of U.S. towns#408Snowiest  of 994 in PA
Milder January nights than 53% of U.S. towns#145Mildest winters  of 1,006 in PA
All PA rankings →

A year in Newville at a glance

Each month’s typical high and low, and what it brings.

Jan38°22° 10" snow
Feb42°24° 8" snow
Mar51°31° 7" snow
Apr64°41° Last frost ~Apr 18
May73°50°
Jun82°59° 2 days 90°+
Jul87°64° 5 days 90°+
Aug84°62° 3 days 90°+
Sep77°55° Wettest
Oct65°43° First frost ~Oct 26
Nov now53°34°
Dec43°27° 4" snow

What stands out about Newville’s climate

Compared with towns across the U.S., with Newville’s place in Pennsylvania beside it.

A normal year

What a year in Newville feels like

Typical highs and lows by season and by month, from NOAA’s 30-year normals.

Winter
41° / 24°
8 days with 1"+ of snow
Spring
63° / 40°
Last frost around Apr 18
Summer
84° / 62°
11 days reach 90°
Fall
65° / 44°
First frost around Oct 26
Best months to be outsideAprMayJunSepOctHighs of 62–84° and lows of 40° or more
Frost, heat & the growing season

About 191 frost-free days a year

In half of years the last 32° night comes by April 18 and the first by October 26. Frost and day counts come from NOAA’s station at Bloserville 1 N, PA, 7 miles from the town’s center, 160 ft higher.

110
nights at or below 32° in a normal year
182nd fewest of 1,006 in Pennsylvania
Fewer freezing nights than 53% of U.S. towns
<1
nights at or below 0°
235th fewest of 1,006 in Pennsylvania
Fewer nights at or below 0° than 57% of U.S. towns
11
days that reach 90°
309th fewest of 1,006 in Pennsylvania
Fewer 90° days than 73% of U.S. towns
<1
days that reach 100°
369th fewest of 1,006 in Pennsylvania
Fewer 100° days than 68% of U.S. towns
7aUSDA zone
Plant hardiness zone 7a

The 2023 USDA map puts Newville’s center in zone 7a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 3°. Plant labels use the zone; frost dates tell you when to plant.

Freezing nights by month

Average nights at or below 32°

26
JFMAMJJASOND

90° days by month

Average days at 90° or more

4.7
JFMAMJJASOND
Rain & snow

About 31 inches of snow a winter

Snow, measured at Pine Grove Furnace, PA, falls mostly in January. Precipitation (rain plus melted snow) adds up to 43 inches a year; September is the wettest month and February the driest. Rain or snow falls on about 129 days a year.

43"
Rain + melted snow a year
731st wettest of 1,006 in Pennsylvania
Wetter than 53% of U.S. towns
31"
Snow in a normal winter
408th snowiest of 994 in Pennsylvania
More snow than 63% of U.S. towns
38 days
With 1"+ of snow on the ground
308th most of 822 in Pennsylvania
More days with snow on the ground than 64% of U.S. towns

Rain + melted snow by month

Inches of water

4.4"
JFMAMJJASOND

Snowfall by month

Inches of snow

10"
JFMAMJJASOND
Heating & cooling

Heating and cooling a home in Newville

88% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.

5,543 heating degree daysMore heating than 55% of U.S. towns
773 cooling degree daysLess cooling than 63% of U.S. towns

Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Bloserville 1 N, PA.

Living here

Living with Newville’s climate

What the numbers mean for a garden, a free afternoon and a bad-weather day.

The garden window

191 frost-free days in zone 7a. The last frost comes by Apr 18 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 26.

Get outside

Months with highs of 62–84° and lows of 40° or more: April, May, June, September and October.

Parks & trails →
Storms and extremes

Of the yearly building losses FEMA expects in Newville from natural hazards, river flooding is the largest share (63%); heat waves, cold waves, winter storms and ice storms together are 10%. Normals are averages; the hazards page covers the extremes.

Natural hazards →
Next door

Newville and its neighbors

Every town next door is within a degree of Newville in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.

Lower Frankford Township: January low 23°, July high 86°Upper Frankford Township: January low 22°, July high 86°Carlisle: January low 23°, July high 86°Dickinson Township: January low 22°, July high 86°Penn Township: January low 22°, July high 86°North Middleton Township: January low 23°, July high 86°Lower Mifflin Township: January low 22°, July high 86°Upper Mifflin Township: January low 22°, July high 86°South Newton Township: January low 21°, July high 84°Hopewell Township: January low 22°, July high 87°West Pennsboro Township: January low 22°, July high 86°North Newton Township: January low 22°, July high 86°Newville: January low 22°, July high 87°NewvilleWest Pennsboro TownshipNorth Newton Township
ColderMilder21° to 23°
North Newton Township22.1° about the same
Newville22.3°
West Pennsboro Township22.3° about the same

Climates most like Newville’s, farther away

TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.

TownJan. lowJuly highPrecip.Snow
Newville, PA22°87°43"31"
Groveport, OH22°86°41"28"
Fort Wright, KY24°87°45"23"
Nyack, NY22°86°47"33"
Lawrenceburg, IN23°86°45"23"

Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.

Then and now

Warmer than it used to be

The last 30 years in Newville averaged 1.5° warmer than the 1900s. The biggest change is in December (+2.8°).

+1.5°1991–2020 vs. 1901–2000

A bigger shift than in 57% of U.S. towns.

Winter+2.3°now 33°, was 30°
Spring+1.1°now 52°, was 50°
Summer+1.2°now 73°, was 72°
Fall+1.3°now 55°, was 54°

Change by month

JanFebMarAprMayJunJulAugSepOctNovDec

The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.

Compared with other towns

How Newville compares

Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Newville’s place among Pennsylvania’s.

Summer heat87° July high
Hotter July afternoons than 60% of U.S. towns93rd hottest of 1,006 in Pennsylvania
Winter cold22° January low
Milder January nights than 53% of U.S. towns145th mildest of 1,006 in Pennsylvania
Precipitation43" a year
Wetter than 53% of U.S. towns731st wettest of 1,006 in Pennsylvania
Snow31" a winter
More snow than 63% of U.S. towns408th snowiest of 994 in Pennsylvania
Hot days11 days at 90°+
Fewer 90° days than 73% of U.S. towns309th fewest of 1,006 in Pennsylvania
Freezing nights110 a year
Fewer freezing nights than 53% of U.S. towns182nd fewest of 1,006 in Pennsylvania
Growing season191 frost-free days
A longer frost-free season than 58% of U.S. towns212th longest of 1,006 in Pennsylvania
Month by month

Newville weather by month

Highs, lows and precipitation from NOAA’s grid at Newville’s center; snow, wet days and snow on the ground from Pine Grove Furnace, PA. 1991–2020 normals.

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January38°22°3.0"10.4"101121° – 38°
February42°24°2.6"8.0"91321° – 40°
March51°31°3.7"6.5"11735° – 51°
April64°41°3.8"0.3"13048° – 57°
May73°50°4.1"0.0"13056° – 68°
June82°59°4.1"0.0"12067° – 74°
July87°64°4.0"0.0"11070° – 80°
August84°62°3.6"0.0"11069° – 77°
September77°55°4.4"0.0"10063° – 70°
October65°43°3.7"0.3"10050° – 61°
November53°34°3.1"0.8"8138° – 49°
December43°27°3.4"4.4"10626° – 44°
Year63°43°43.3"30.7"12938
Year to year

How much a month can swing

A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 21° to 40°. June is the most reliable, staying within 7°.

Coldest to warmest month in 30 yearsNormal
Sources

Where Newville’s numbers come from

Normals are 30-year averages, not a forecast. How TownRatings reads climate data →

  • Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Newville’s center.
  • Snow: Pine Grove Furnace, PA.
  • Frost, freezing nights, 90° and 100° days, heating and cooling: Bloserville 1 N, PA, 7 miles from the town’s center, 160 ft higher; the nearest station that passes our checks for distance, height and agreement with the grid.
  • Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
  • Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
  • Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).

Common questions about Newville’s climate

What is the weather like in Newville?

A typical July afternoon reaches 87°, a January night drops to 22°, and about 31 inches of snow falls in a normal winter. Milder January nights than 53% of U.S. towns; hotter July afternoons than 60% of U.S. towns.

How cold does it get in Newville in winter?

January nights average 22°. About 110 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 21°.

How much snow does Newville get?

About 31 inches in a normal winter at Pine Grove Furnace, PA, most of it in January, with snow on the ground about 38 days a year.

How hot does it get in Newville?

July, with a typical high of 87° and a low of 64°. About 11 days a year reach 90° (Bloserville 1 N, PA).

When is the first and last frost in Newville?

In half of years the last spring frost (32°) comes by April 18 and the first fall frost by October 26, about 191 frost-free days, at Bloserville 1 N, PA.

What growing zone is Newville in?

Zone 7a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 3°.

What is the best time of year to visit Newville?

By one simple rule (highs of 62–84° and lows of 40° or more), April, May, June, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.

Is Newville getting warmer?

Yes: 1991–2020 averaged 1.5° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 57% of U.S. towns.

Neighbors talk weather

Gardens, snow, and the best days of the year in Newville.

Town Square →
Ask your neighbors

Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.