Photo: Nyttend · Public domainNeither notably warm, cold, wet nor dry, West Chester Township sits near the middle of U.S. towns
The depth of winter brings overnight lows near 22°. Compared with 1901–2000, the average now sits 1.3° higher. Seedlings are safe outdoors from about April 22, with the first autumn frost due around October 18.
A year in West Chester Township at a glance
Each month’s typical high and low, and what it brings.
What stands out about West Chester Township’s climate
Compared with towns across the U.S., with West Chester Township’s place in Ohio beside it.
What a year in West Chester Township feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 178 frost-free days a year
In half of years the last 32° night comes by April 22 and the first by October 18. Frost and day counts come from NOAA’s station at Hamilton Butler Co Rgnl Airport, 6 miles from the city’s center point, 120 ft lower.
The 2023 USDA map puts West Chester Township’s center in zone 6b: 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 14 inches of snow a winter
Snow, measured at Kings Mills, OH, falls mostly in January. Precipitation (rain plus melted snow) adds up to 43 inches a year; May is the wettest month and February the driest. Rain or snow falls on about 116 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in West Chester Township
83% of the work is heating. Months averaging under 55° run from November 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 Hamilton Butler Co Rgnl Airport.
Living with West Chester Township’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
178 frost-free days in zone 6b. The last frost comes by Apr 22 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 18.
Months with highs of 62–84° and lows of 40° or more: April, May, June, September and October. 18 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in West Chester Township from natural hazards, river flooding is the largest share (45%); heat waves, cold waves, winter storms and ice storms together are 18%. Normals are averages; the hazards page covers the extremes.
Natural hazards →West Chester Township and its neighbors
Every town next door is within a degree of West Chester Township in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like West Chester 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.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| West Chester Township, OH | 22° | 86° | 43" | 14" |
| Effingham, IL | 21° | 87° | 44" | 15" |
| Terre Haute, IN | 21° | 87° | 43" | 15" |
| Parkersburg, WV | 24° | 86° | 44" | 11" |
| Wright City, MO | 21° | 88° | 43" | 14" |
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 West Chester Township averaged 1.3° warmer than the 1900s. The biggest change is in December (+2.6°).
A smaller shift than in 53% 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 West Chester Township compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with West Chester Township’s place among Ohio’s.
West Chester Township weather by month
Highs, lows and precipitation from NOAA’s grid at West Chester Township’s center; snow, wet days and snow on the ground from Kings Mills, OH. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 39° | 22° | 3.2" | 5.2" | 10 | 8 | 22° – 41° |
| February | 43° | 25° | 2.7" | 3.7" | 9 | 6 | 21° – 43° |
| March | 53° | 33° | 3.7" | 2.8" | 10 | 2 | 36° – 55° |
| April | 66° | 42° | 4.5" | 0.1" | 12 | 0 | 48° – 59° |
| May | 75° | 53° | 4.7" | 0.0" | 13 | 0 | 58° – 72° |
| June | 83° | 61° | 4.6" | 0.0" | 11 | 0 | 68° – 75° |
| July | 86° | 65° | 4.0" | 0.0" | 9 | 0 | 71° – 80° |
| August | 86° | 63° | 3.3" | 0.0" | 8 | 0 | 70° – 80° |
| September | 79° | 56° | 3.1" | 0.0" | 7 | 0 | 64° – 73° |
| October | 67° | 44° | 3.2" | 0.2" | 8 | 0 | 52° – 62° |
| November | 54° | 34° | 3.0" | 0.5" | 9 | 0 | 38° – 50° |
| December | 43° | 27° | 3.3" | 1.9" | 10 | 4 | 23° – 46° |
| Year | 64° | 44° | 43.2" | 14.4" | 116 | 20 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 23° to 46°. June is the most reliable, staying within 7°.
Where West Chester 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 West Chester Township’s center.
- Snow: Kings Mills, OH.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Hamilton Butler Co Rgnl Airport, 6 miles from the city’s center point, 120 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 West Chester Township’s climate
What is the weather like in West Chester Township?
A typical July afternoon reaches 86°, a January night drops to 22°, and about 14 inches of snow falls in a normal winter. Milder January nights than 53% of U.S. towns; hotter July afternoons than 58% of U.S. towns.
How cold does it get in West Chester Township in winter?
January nights average 22°. About 115 nights a year reach 32° or below and 4 reach 0° or below. In the coldest January of the last 30 years the month averaged 22°.
How much snow does West Chester Township get?
About 14 inches in a normal winter at Kings Mills, OH, most of it in January, with snow on the ground about 20 days a year.
How hot does it get in West Chester Township?
July, with a typical high of 86° and a low of 65°. About 28 days a year reach 90° (Hamilton Butler Co Rgnl Airport).
When is the first and last frost in West Chester Township?
In half of years the last spring frost (32°) comes by April 22 and the first fall frost by October 18, about 178 frost-free days, at Hamilton Butler Co Rgnl Airport.
What growing zone is West Chester Township in?
Zone 6b 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 West Chester Township?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, June, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is West Chester Township getting warmer?
Yes: 1991–2020 averaged 1.3° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 53% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in West Chester Township.
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.