Fulton Opera House · Photo: Scanlan · CC BY-SA 3.0Lancaster’s winters are milder and less snowy than most of the U.S.
A typical July afternoon reaches 86°, a January night drops to 22°, and about 21 inches of snow falls in a normal winter.
A year in Lancaster at a glance
Each month’s typical high and low, and what it brings.
What stands out about Lancaster’s climate
Compared with towns across the U.S., with Lancaster’s place in Pennsylvania beside it.
What a year in Lancaster feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 186 frost-free days a year
In half of years the last 32° night comes by April 19 and the first by October 24. Frost and day counts come from NOAA’s station at Lancaster 2ne Fltr Plt, PA, 1.5 miles from the city’s center point, at about the same height.
The 2023 USDA map puts Lancaster’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°
90° days by month
Average days at 90° or more
About 21 inches of snow a winter
Snow, measured at Lancaster 2ne Fltr Plt, PA, falls mostly in February. 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 124 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Lancaster
83% of the work is heating. 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 Lancaster 2ne Fltr Plt, PA.
Living with Lancaster’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
186 frost-free days in zone 7a. The last frost comes by Apr 19 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 24.
Months with highs of 62–84° and lows of 40° or more: April, May, June, August, September and October. 9.4 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Lancaster from natural hazards, river flooding is the largest share (67%); heat waves, cold waves, winter storms and ice storms together are 9%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Lancaster and its neighbors
Every town next door is within a degree of Lancaster in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Lancaster’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 |
|---|---|---|---|---|
| Lancaster, PA | 22° | 86° | 45" | 21" |
| Lawrenceburg, IN | 23° | 86° | 45" | 23" |
| Francisville, KY | 23° | 86° | 45" | 23" |
| Forestville, OH | 23° | 86° | 45" | 23" |
| Clarksburg, WV | 23° | 85° | 47" | 24" |
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 Lancaster averaged 1.7° warmer than the 1900s. The biggest change is in December (+3.3°).
A bigger shift than in 72% 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 Lancaster compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Lancaster’s place among Pennsylvania’s.
Lancaster weather by month
Highs, lows and precipitation from NOAA’s grid at Lancaster’s center; snow, wet days and snow on the ground from Lancaster 2ne Fltr Plt, PA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 39° | 22° | 3.0" | 6.1" | 10 | 7 | 21° – 38° |
| February | 42° | 23° | 2.5" | 7.4" | 9 | 9 | 21° – 41° |
| March | 51° | 31° | 3.7" | 3.4" | 11 | 3 | 35° – 51° |
| April | 64° | 40° | 3.6" | 0.2" | 11 | 0 | 47° – 57° |
| May | 74° | 51° | 3.8" | 0.0" | 13 | 0 | 57° – 68° |
| June | 82° | 60° | 4.1" | 0.0" | 11 | 0 | 67° – 74° |
| July | 86° | 65° | 4.5" | 0.0" | 10 | 0 | 71° – 79° |
| August | 84° | 63° | 4.0" | 0.0" | 10 | 0 | 69° – 77° |
| September | 77° | 56° | 4.6" | 0.0" | 10 | 0 | 64° – 70° |
| October | 65° | 44° | 4.2" | 0.3" | 10 | 0 | 50° – 61° |
| November | 54° | 34° | 3.1" | 0.6" | 10 | 0 | 38° – 49° |
| December | 44° | 27° | 3.5" | 3.4" | 11 | 2 | 27° – 46° |
| Year | 63° | 43° | 44.5" | 21.4" | 124 | 22 |
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 41°. September is the most reliable, staying within 6°.
Where Lancaster’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 Lancaster’s center.
- Snow: Lancaster 2ne Fltr Plt, PA (NOAA station in town).
- Frost, freezing nights, 90° and 100° days, heating and cooling: Lancaster 2ne Fltr Plt, PA, 1.5 miles from the city’s center point, 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 Lancaster’s climate
What is the weather like in Lancaster?
A typical July afternoon reaches 86°, 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; hotter July afternoons than 55% of U.S. towns.
How cold does it get in Lancaster in winter?
January nights average 22°. 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 Lancaster get?
About 21 inches in a normal winter at Lancaster 2ne Fltr Plt, PA, most of it in February, with snow on the ground about 22 days a year.
How hot does it get in Lancaster?
July, with a typical high of 86° and a low of 65°. About 20 days a year reach 90° (Lancaster 2ne Fltr Plt, PA).
When is the first and last frost in Lancaster?
In half of years the last spring frost (32°) comes by April 19 and the first fall frost by October 24, about 186 frost-free days, at Lancaster 2ne Fltr Plt, PA.
What growing zone is Lancaster 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 Lancaster?
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 Lancaster getting warmer?
Yes: 1991–2020 averaged 1.7° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 72% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Lancaster.
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.