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PA 906 sb in Webster (1), May 2024Photo: Mr. Matté (if there is an issue with this image, contact me using this image's Commons talk page, my Commons user talk page, or my English Wikipedia user talk page; I'll know about it a lot faster) · CC BY-SA 4.0
Climate in Webster · NOAA 1991–2020 normals

In Webster, July heat, January chill and rainfall all sit near the middle of U.S. towns

On a normal July day the thermometer tops out near 84°. June is the wettest month, February the driest. Summers stay cool: July afternoons here are cooler than in 63% of U.S. towns. The outdoor season runs from May to October, with highs of 65–84°.

Milder January nights than 51% of U.S. towns#240Mildest winters  of 1,006 in PA
Less snow than 50% of U.S. towns#167Least snow  of 994 in PA
All PA rankings →

A year in Webster at a glance

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

Jan38°22° 6" snow
Feb42°24° 7" snow
Mar51°30° 5" snow
Apr64°39° Last frost ~Apr 27
May73°49° 1 day 90°+
Jun80°58° 3 days 90°+Wettest
Jul84°62° 5 days 90°+
Aug83°61° 5 days 90°+
Sep76°54° 2 days 90°+
Oct65°43° First frost ~Oct 22
Nov now53°33°
Dec43°27° 3" snow

What stands out about Webster’s climate

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

A normal year

What a year in Webster 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
62° / 40°
Last frost around Apr 27
Summer
82° / 60°
15 days reach 90°
Fall
65° / 43°
First frost around Oct 22
Best months to be outsideMayJunJulAugSepOctHighs of 62–84° and lows of 40° or more
Frost, heat & the growing season

About 177 frost-free days a year

In half of years the last 32° night comes by April 27 and the first by October 22. Frost and day counts come from NOAA’s station at Donora 1 Sw, PA, 2.2 miles from the town’s center, 200 ft lower.

116
nights at or below 32° in a normal year
717th most of 1,006 in Pennsylvania
More freezing nights than 51% of U.S. towns
2
nights at or below 0°
520th most of 1,006 in Pennsylvania
More nights at or below 0° than 51% of U.S. towns
15
days that reach 90°
477th fewest of 1,006 in Pennsylvania
Fewer 90° days than 60% of U.S. towns
0
days that reach 100°
None in a normal year
6bUSDA zone
Plant hardiness zone 6b

The 2023 USDA map puts Webster’s center in zone 6b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −2°. 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

5.3
JFMAMJJASOND
Rain & snow

About 21 inches of snow a winter

Snow, measured at Donora 1 Sw, PA, falls mostly in February. Precipitation (rain plus melted snow) adds up to 42 inches a year; June is the wettest month and February the driest. Rain or snow falls on about 147 days a year.

42"
Rain + melted snow a year
142nd driest of 1,006 in Pennsylvania
Drier than 53% of U.S. towns
21"
Snow in a normal winter
167th least snowy of 994 in Pennsylvania
Less snow than 50% of U.S. towns
24 days
With 1"+ of snow on the ground
637th most of 822 in Pennsylvania
More days with snow on the ground than 53% of U.S. towns

Rain + melted snow by month

Inches of water

4.4"
JFMAMJJASOND

Snowfall by month

Inches of snow

7"
JFMAMJJASOND
Heating & cooling

Heating and cooling a home in Webster

87% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.

5,465 heating degree daysMore heating than 53% of U.S. towns
812 cooling degree daysLess cooling than 59% 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 Donora 1 Sw, PA.

Living here

Living with Webster’s climate

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

The garden window

177 frost-free days in zone 6b. The last frost comes by Apr 27 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 22.

Get outside

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

Parks & trails →
Storms and extremes

Of the yearly building losses FEMA expects in Webster from natural hazards, river flooding is the largest share (90%); heat waves, cold waves, winter storms and ice storms together are 1%. Normals are averages; the hazards page covers the extremes.

Natural hazards →
Next door

Webster and its neighbors

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

Carroll Township: January low 22°, July high 84°Monessen: January low 22°, July high 84°South Huntingdon Township: January low 21°, July high 84°Washington Township: January low 22°, July high 84°Collinsburg: January low 22°, July high 84°West Newton: January low 22°, July high 84°North Belle Vernon: January low 22°, July high 84°Lynnwood-Pricedale: January low 22°, July high 84°Perry Township: January low 22°, July high 84°Speers: January low 22°, July high 83°Charleroi: January low 22°, July high 84°Donora: January low 22°, July high 84°Rostraver Township: January low 22°, July high 83°Webster: January low 22°, July high 84°WebsterDonoraRostraver Township
ColderMilder21° to 22°
Rostraver Township21.7° about the same
Webster21.9°
Donora21.9° about the same

Climates most like Webster’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
Webster, PA22°84°42"21"
Xenia, OH22°85°42"20"
Alexandria, IN20°84°43"21"
Wytheville, VA24°83°42"18"
South Farmingdale, NY24°85°44"19"

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 Webster averaged 0.9° warmer than the 1900s. The biggest change is in December (+2.2°).

+0.9°1991–2020 vs. 1901–2000

A smaller shift than in 84% of U.S. towns.

Winter+1.6°now 32°, was 31°
Spring+1.0°now 51°, was 50°
Summer+0.4°now 71°, was 71°
Fall+0.7°now 54°, 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 Webster compares

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

Summer heat84° July high
Cooler July afternoons than 63% of U.S. towns377th coolest of 1,006 in Pennsylvania
Winter cold22° January low
Milder January nights than 51% of U.S. towns240th mildest of 1,006 in Pennsylvania
Precipitation42" a year
Drier than 53% of U.S. towns142nd driest of 1,006 in Pennsylvania
Snow21" a winter
Less snow than 50% of U.S. towns167th least snowy of 994 in Pennsylvania
Hot days15 days at 90°+
Fewer 90° days than 60% of U.S. towns477th fewest of 1,006 in Pennsylvania
Freezing nights116 a year
More freezing nights than 51% of U.S. towns717th most of 1,006 in Pennsylvania
Growing season177 frost-free days
A shorter frost-free season than 61% of U.S. towns377th shortest of 1,006 in Pennsylvania
Month by month

Webster weather by month

Highs, lows and precipitation from NOAA’s grid at Webster’s center; snow, wet days and snow on the ground from Donora 1 Sw, PA. 1991–2020 normals.

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January38°22°3.1"5.7"15922° – 40°
February42°24°2.7"7.2"12720° – 41°
March51°30°3.3"4.6"13334° – 51°
April64°39°3.5"0.1"14045° – 56°
May73°49°4.1"0.0"14054° – 68°
June80°58°4.4"0.0"13065° – 71°
July84°62°4.2"0.0"11069° – 77°
August83°61°3.8"0.0"10067° – 77°
September76°54°3.5"0.0"10062° – 70°
October65°43°3.1"0.0"12050° – 60°
November53°33°3.0"0.5"12137° – 48°
December43°27°3.2"3.3"13525° – 46°
Year63°42°41.8"21.4"14724
Year to year

How much a month can swing

A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 25° to 46°. June is the most reliable, staying within 6°.

Coldest to warmest month in 30 yearsNormal
Sources

Where Webster’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 Webster’s center.
  • Snow: Donora 1 Sw, PA.
  • Frost, freezing nights, 90° and 100° days, heating and cooling: Donora 1 Sw, PA, 2.2 miles from the town’s center, 200 ft lower; 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 Webster’s climate

What is the weather like in Webster?

A typical July afternoon reaches 84°, a January night drops to 22°, and about 21 inches of snow falls in a normal winter. Milder January nights than 51% of U.S. towns; cooler July afternoons than 63% of U.S. towns.

How cold does it get in Webster in winter?

January nights average 22°. About 116 nights a year reach 32° or below and 2 reach 0° or below. In the coldest January of the last 30 years the month averaged 22°.

How much snow does Webster get?

About 21 inches in a normal winter at Donora 1 Sw, PA, most of it in February, with snow on the ground about 24 days a year.

How hot does it get in Webster?

July, with a typical high of 84° and a low of 62°. About 15 days a year reach 90° (Donora 1 Sw, PA).

When is the first and last frost in Webster?

In half of years the last spring frost (32°) comes by April 27 and the first fall frost by October 22, about 177 frost-free days, at Donora 1 Sw, PA.

What growing zone is Webster in?

Zone 6b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −2°.

What is the best time of year to visit Webster?

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

Is Webster getting warmer?

Yes: 1991–2020 averaged 0.9° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 84% of U.S. towns.

Neighbors talk weather

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

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.