Photo: PennDOT · Public domainSummer arrives softly in Westover, cooler than in 88% of U.S. towns
Midwinter brings lows of about 17°. Winter and summer sit 64° apart. In January, nights here are colder than in 74% of U.S. towns. Keep the boiler serviced for the months from October to April, which average under 50°.
A year in Westover at a glance
Each month’s typical high and low, and what it brings.
What stands out about Westover’s climate
Compared with towns across the U.S., with Westover’s place in Pennsylvania beside it.
What a year in Westover feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 149 frost-free days a year
In half of years the last 32° night comes by May 10 and the first by October 5. Frost and day counts come from NOAA’s station at Prince Gallitzin Sp, PA, 9 miles from the town’s center, at about the same height.
The 2023 USDA map puts Westover’s center in zone 6a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −6°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 50 inches of snow a winter
Snow, measured at Prince Gallitzin Sp, PA, is heaviest from January through February, about 15 inches a month. Precipitation (rain plus melted snow) adds up to 46 inches a year; June is the wettest month and February the driest. Rain or snow falls on about 156 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Westover
93% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Prince Gallitzin Sp, PA.
Living with Westover’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
149 frost-free days in zone 6a. The last frost comes by May 10 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 5.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August and September. 1.5 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Westover from natural hazards, river flooding is the largest share (76%); heat waves, cold waves, winter storms and ice storms together are 7%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Westover and its neighbors
Every town next door is within a degree of Westover in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Westover’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.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Westover, PA | 17° | 81° | 46" | 50" |
| Hamilton, MA | 19° | 81° | 48" | 51" |
| Portsmouth, NH | 16° | 80° | 48" | 56" |
| Eliot, ME | 15° | 81° | 48" | 56" |
| Greene, NY | 15° | 82° | 44" | 48" |
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.
Warmer than it used to be
The last 30 years in Westover averaged 1.1° warmer than the 1900s. The biggest change is in December (+2.2°).
A smaller shift than in 70% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Westover compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Westover’s place among Pennsylvania’s.
Westover weather by month
Highs, lows and precipitation from NOAA’s grid at Westover’s center; snow, wet days and snow on the ground from Prince Gallitzin Sp, PA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 33° | 17° | 3.4" | 15.4" | 16 | 19 | 17° – 34° |
| February | 37° | 19° | 2.8" | 14.6" | 13 | 17 | 15° – 35° |
| March | 46° | 25° | 3.7" | 7.6" | 12 | 9 | 29° – 47° |
| April | 59° | 35° | 3.9" | 1.6" | 14 | 1 | 41° – 52° |
| May | 70° | 45° | 4.2" | 0.0" | 15 | 0 | 51° – 64° |
| June | 77° | 54° | 4.5" | 0.0" | 13 | 0 | 61° – 68° |
| July | 81° | 58° | 4.5" | 0.0" | 12 | 0 | 65° – 73° |
| August | 79° | 57° | 4.0" | 0.0" | 12 | 0 | 64° – 73° |
| September | 72° | 50° | 4.3" | 0.0" | 12 | 0 | 58° – 66° |
| October | 61° | 39° | 3.5" | 0.4" | 12 | 0 | 45° – 56° |
| November | 48° | 30° | 3.3" | 1.8" | 12 | 2 | 34° – 45° |
| December | 38° | 23° | 3.6" | 8.5" | 14 | 10 | 20° – 41° |
| Year | 58° | 38° | 45.6" | 49.9" | 156 | 57 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 20° to 41°. June is the most reliable, staying within 7°.
Where Westover’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 Westover’s center.
- Snow: Prince Gallitzin Sp, PA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Prince Gallitzin Sp, PA, 9 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 Westover’s climate
What is the weather like in Westover?
A typical July afternoon reaches 81°, a January night drops to 17°, and about 50 inches of snow falls in a normal winter. Colder January nights than 74% of U.S. towns; cooler July afternoons than 88% of U.S. towns.
How cold does it get in Westover in winter?
January nights average 17°. About 154 nights a year reach 32° or below and 7 reach 0° or below. In the coldest January of the last 30 years the month averaged 17°.
How much snow does Westover get?
About 50 inches in a normal winter at Prince Gallitzin Sp, PA, heaviest from January through February, about 15 inches a month, with snow on the ground about 57 days a year.
How hot does it get in Westover?
July, with a typical high of 81° and a low of 58°. About 7 days a year reach 90° (Prince Gallitzin Sp, PA).
When is the first and last frost in Westover?
In half of years the last spring frost (32°) comes by May 10 and the first fall frost by October 5, about 149 frost-free days, at Prince Gallitzin Sp, PA.
What growing zone is Westover in?
Zone 6a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −6°.
What is the best time of year to visit Westover?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Westover getting warmer?
Yes: 1991–2020 averaged 1.1° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 70% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Westover.
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.