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Johannes Eberly HousePhoto: Jeremiah Orr · CC BY-SA 3.0
Climate in Hampden Township · NOAA 1991–2020 normals

Hampden Township’s winters are milder but snowier than most of the U.S.

A typical July afternoon reaches 86°, a January night drops to 23°, and about 24 inches of snow falls in a normal winter.

Milder January nights than 54% of U.S. towns#109Mildest winters  of 1,005 in PA
More snow than 53% of U.S. towns#704Snowiest  of 993 in PA
All PA rankings →

A year in Hampden Township at a glance

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

Jan38°23° 6" snow
Feb42°24° 8" snow
Mar51°31° 5" snow
Apr63°41° Last frost ~Apr 15
May73°51° 1 day 90°+
Jun82°60° 4 days 90°+
Jul86°65° 9 days 90°+
Aug84°63° 4 days 90°+
Sep77°56° 1 day 90°+Wettest
Oct65°44° First frost ~Oct 23
Nov now53°35°
Dec43°28° 4" snow

What stands out about Hampden Township’s climate

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

A normal year

What a year in Hampden Township feels like

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

Winter
41° / 25°
7 days with 1"+ of snow
Spring
62° / 41°
Last frost around Apr 15
Summer
84° / 63°
18 days reach 90°
Fall
65° / 45°
First frost around Oct 23
Best months to be outsideAprMayJunAugSepOctHighs of 62–84° and lows of 40° or more
Frost, heat & the growing season

About 189 frost-free days a year

In half of years the last 32° night comes by April 15 and the first by October 23. Frost and day counts come from NOAA’s station at Harrisburg 1 Ne, PA, 6 miles from the town’s center, at about the same height.

111
nights at or below 32° in a normal year
233rd fewest of 1,005 in Pennsylvania
Fewer freezing nights than 52% of U.S. towns
<1
nights at or below 0°
150th fewest of 1,005 in Pennsylvania
Fewer nights at or below 0° than 59% of U.S. towns
18
days that reach 90°
642nd fewest of 1,005 in Pennsylvania
Fewer 90° days than 53% of U.S. towns
<1
days that reach 100°
202nd most of 1,005 in Pennsylvania
More 100° days than 52% of U.S. towns
7aUSDA zone
Plant hardiness zone 7a

The 2023 USDA map puts Hampden Township’s center in zone 7a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 4°. 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

8.7
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Rain & snow

About 24 inches of snow a winter

Snow, measured at Harrisburg 1 Ne, PA, falls mostly in February. Precipitation (rain plus melted snow) adds up to 44 inches a year; September is the wettest month and February the driest. Rain or snow falls on about 125 days a year.

44"
Rain + melted snow a year
672nd wettest of 1,005 in Pennsylvania
Wetter than 55% of U.S. towns
24"
Snow in a normal winter
704th snowiest of 993 in Pennsylvania
More snow than 53% of U.S. towns
31 days
With 1"+ of snow on the ground
408th most of 821 in Pennsylvania
More days with snow on the ground than 61% of U.S. towns

Rain + melted snow by month

Inches of water

4.4"
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Snowfall by month

Inches of snow

8"
JFMAMJJASOND
Heating & cooling

Heating and cooling a home in Hampden Township

86% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.

5,614 heating degree daysMore heating than 57% of U.S. towns
890 cooling degree daysLess cooling than 52% 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 Harrisburg 1 Ne, PA.

Living here

Living with Hampden Township’s climate

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

The garden window

189 frost-free days in zone 7a. The last frost comes by Apr 15 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 23.

Get outside

Months with highs of 62–84° and lows of 40° or more: April, May, June, August, September and October. 17 miles of trails are waiting.

Parks & trails →
Storms and extremes

Of the yearly building losses FEMA expects in Hampden Township from natural hazards, river flooding is the largest share (74%); heat waves, cold waves, winter storms and ice storms together are 6%. Normals are averages; the hazards page covers the extremes.

Natural hazards →
Next door

Hampden Township and its neighbors

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

Middlesex Township: January low 23°, July high 86°Monroe Township: January low 22°, July high 86°South Middleton Township: January low 22°, July high 86°Harrisburg: January low 23°, July high 86°West Fairview: January low 23°, July high 86°Wormleysburg: January low 23°, July high 86°Susquehanna Township: January low 22°, July high 86°Upper Allen Township: January low 22°, July high 86°Penn Township: January low 23°, July high 85°Carroll Township: January low 23°, July high 85°Wheatfield Township: January low 23°, July high 85°Marysville: January low 22°, July high 86°Fairview Township: January low 22°, July high 86°New Cumberland: January low 22°, July high 86°Lemoyne: January low 22°, July high 86°Silver Spring Township: January low 23°, July high 86°East Pennsboro Township: January low 23°, July high 86°Mechanicsburg: January low 23°, July high 86°Rye Township: January low 22°, July high 85°Lower Allen Township: January low 23°, July high 86°Camp Hill: January low 23°, July high 86°Shiremanstown: January low 23°, July high 86°Hampden Township: January low 23°, July high 86°Hampden TownshipSilver Spring TownshipEast Pennsboro TownshipMechanicsburgRye TownshipLower Allen TownshipCamp HillShiremanstown
ColderMilder22° to 23°
Rye Township22.1° about the same
Hampden Township22.5°
Silver Spring Township22.5° about the same
East Pennsboro Township22.5° about the same
Mechanicsburg22.5° about the same
Lower Allen Township22.5° about the same
Camp Hill22.5° about the same
Shiremanstown22.5° about the same

Climates most like Hampden Township’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
Hampden Township, PA23°86°44"24"
Newport, KY24°86°45"23"
Forestville, OH23°86°45"23"
Lawrenceburg, IN23°86°45"23"
New Martinsville, WV22°85°46"27"

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 Hampden Township averaged 1.7° warmer than the 1900s. The biggest change is in December (+3.1°).

+1.7°1991–2020 vs. 1901–2000

A bigger shift than in 73% of U.S. towns.

Winter+2.5°now 33°, was 30°
Spring+1.3°now 52°, was 50°
Summer+1.6°now 73°, was 72°
Fall+1.5°now 55°, was 53°

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 Hampden Township compares

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

Summer heat86° July high
Hotter July afternoons than 56% of U.S. towns204th hottest of 1,005 in Pennsylvania
Winter cold23° January low
Milder January nights than 54% of U.S. towns109th mildest of 1,005 in Pennsylvania
Precipitation44" a year
Wetter than 55% of U.S. towns672nd wettest of 1,005 in Pennsylvania
Snow24" a winter
More snow than 53% of U.S. towns704th snowiest of 993 in Pennsylvania
Hot days18 days at 90°+
Fewer 90° days than 53% of U.S. towns642nd fewest of 1,005 in Pennsylvania
Freezing nights111 a year
Fewer freezing nights than 52% of U.S. towns233rd fewest of 1,005 in Pennsylvania
Growing season189 frost-free days
A longer frost-free season than 56% of U.S. towns228th longest of 1,005 in Pennsylvania
Month by month

Hampden Township weather by month

Highs, lows and precipitation from NOAA’s grid at Hampden Township’s center; snow, wet days and snow on the ground from Harrisburg 1 Ne, PA. 1991–2020 normals.

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January38°23°3.0"6.4"101021° – 38°
February42°24°2.6"7.7"91221° – 40°
March51°31°3.6"4.5"9435° – 51°
April63°41°3.7"0.4"12049° – 57°
May73°51°3.8"0.0"13057° – 68°
June82°60°4.1"0.0"12067° – 74°
July86°65°4.3"0.0"11071° – 80°
August84°63°4.0"0.0"11069° – 77°
September77°56°4.4"0.0"9063° – 71°
October65°44°3.8"0.0"11050° – 61°
November53°35°3.2"0.7"9038° – 49°
December43°28°3.4"4.2"10526° – 45°
Year63°43°43.8"23.9"12531
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 Hampden Township’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 Hampden Township’s center.
  • Snow: Harrisburg 1 Ne, PA.
  • Frost, freezing nights, 90° and 100° days, heating and cooling: Harrisburg 1 Ne, PA, 6 miles from the town’s center, at about the same height; 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 Hampden Township’s climate

What is the weather like in Hampden Township?

A typical July afternoon reaches 86°, a January night drops to 23°, and about 24 inches of snow falls in a normal winter. Milder January nights than 54% of U.S. towns; hotter July afternoons than 56% of U.S. towns.

How cold does it get in Hampden Township in winter?

January nights average 23°. About 111 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 21°.

How much snow does Hampden Township get?

About 24 inches in a normal winter at Harrisburg 1 Ne, PA, most of it in February, with snow on the ground about 31 days a year.

How hot does it get in Hampden Township?

July, with a typical high of 86° and a low of 65°. About 18 days a year reach 90° (Harrisburg 1 Ne, PA).

When is the first and last frost in Hampden Township?

In half of years the last spring frost (32°) comes by April 15 and the first fall frost by October 23, about 189 frost-free days, at Harrisburg 1 Ne, PA.

What growing zone is Hampden Township in?

Zone 7a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 4°.

What is the best time of year to visit Hampden Township?

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

Is Hampden Township getting warmer?

Yes: 1991–2020 averaged 1.7° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 73% of U.S. towns.

Neighbors talk weather

Gardens, snow, and the best days of the year in Hampden Township.

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.