In Rouzerville, July heat, January chill and rainfall all sit near the middle of U.S. towns
The depth of winter brings overnight lows near 22°. The latest 30-year average runs 1.6° warmer than 1901–2000’s, with December up the most. Seedlings are safe outdoors from about April 25, with the first autumn frost due around October 19.
A year in Rouzerville at a glance
Each month’s typical high and low, and what it brings.
What stands out about Rouzerville’s climate
Compared with towns across the U.S., with Rouzerville’s place in Pennsylvania beside it.
What a year in Rouzerville feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 176 frost-free days a year
In half of years the last 32° night comes by April 25 and the first by October 19. Frost and day counts come from NOAA’s station at Smithsburg 2nw, MD, 6 miles from the town’s center, at about the same height.
The 2023 USDA map puts Rouzerville’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°
90° days by month
Average days at 90° or more
About 28 inches of snow a winter
Snow, measured at Emmitsburg 2 Se, MD, is heaviest from January through February, about 9 inches a month. Precipitation (rain plus melted snow) adds up to 45 inches a year; September is the wettest month and February the driest. Rain or snow falls on about 117 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Rouzerville
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.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Smithsburg 2nw, MD.
Living with Rouzerville’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
176 frost-free days in zone 7a. The last frost comes by Apr 25 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 19.
Months with highs of 62–84° and lows of 40° or more: April, May, June, August, September and October. 0.0 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Rouzerville from natural hazards, river flooding is the largest share (66%); heat waves, cold waves, winter storms and ice storms together are 6%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Rouzerville and its neighbors
Wayne Heights the hottest July afternoons (86°, 1° warmer). Differences under a degree are within what the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Rouzerville’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 |
|---|---|---|---|---|
| Rouzerville, PA | 22° | 85° | 45" | 28" |
| New Martinsville, WV | 22° | 85° | 46" | 27" |
| Oxford, OH | 21° | 85° | 44" | 25" |
| Francisville, KY | 23° | 86° | 45" | 23" |
| Lawrenceburg, IN | 23° | 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.
Warmer than it used to be
The last 30 years in Rouzerville averaged 1.6° warmer than the 1900s. The biggest change is in December (+2.7°).
A bigger shift than in 65% 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 Rouzerville compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Rouzerville’s place among Pennsylvania’s.
Rouzerville weather by month
Highs, lows and precipitation from NOAA’s grid at Rouzerville’s center; snow, wet days and snow on the ground from Emmitsburg 2 Se, MD. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 39° | 22° | 3.2" | 8.7" | 9 | 6 | 21° – 38° |
| February | 42° | 24° | 2.6" | 8.8" | 8 | 8 | 22° – 41° |
| March | 51° | 31° | 3.7" | 4.4" | 10 | 3 | 35° – 50° |
| April | 64° | 41° | 3.8" | 0.2" | 11 | 0 | 48° – 58° |
| May | 73° | 51° | 4.3" | 0.0" | 13 | 0 | 57° – 67° |
| June | 81° | 59° | 4.2" | 0.0" | 11 | 0 | 66° – 73° |
| July | 85° | 64° | 4.2" | 0.0" | 11 | 0 | 70° – 78° |
| August | 83° | 62° | 3.6" | 0.0" | 10 | 0 | 69° – 76° |
| September | 77° | 55° | 4.7" | 0.0" | 9 | 0 | 63° – 70° |
| October | 65° | 44° | 3.7" | 0.1" | 9 | 0 | 51° – 61° |
| November | 53° | 34° | 3.2" | 0.8" | 8 | 0 | 37° – 49° |
| December | 43° | 27° | 3.6" | 4.5" | 9 | 3 | 25° – 45° |
| Year | 63° | 43° | 44.6" | 27.5" | 117 | 21 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 22° to 41°. September is the most reliable, staying within 7°.
Where Rouzerville’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 Rouzerville’s center.
- Snow: Emmitsburg 2 Se, MD.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Smithsburg 2nw, MD, 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 Rouzerville’s climate
What is the weather like in Rouzerville?
A typical July afternoon reaches 85°, a January night drops to 22°, and about 28 inches of snow falls in a normal winter. Milder January nights than 52% of U.S. towns; hotter July afternoons than 51% of U.S. towns.
How cold does it get in Rouzerville in winter?
January nights average 22°. About 122 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 21°.
How much snow does Rouzerville get?
About 28 inches in a normal winter at Emmitsburg 2 Se, MD, heaviest from January through February, about 9 inches a month, with snow on the ground about 21 days a year.
How hot does it get in Rouzerville?
July, with a typical high of 85° and a low of 64°. About 20 days a year reach 90° (Smithsburg 2nw, MD).
When is the first and last frost in Rouzerville?
In half of years the last spring frost (32°) comes by April 25 and the first fall frost by October 19, about 176 frost-free days, at Smithsburg 2nw, MD.
What growing zone is Rouzerville 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 Rouzerville?
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 Rouzerville getting warmer?
Yes: 1991–2020 averaged 1.6° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 65% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Rouzerville.
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.