Photo: The All Nite Images · CC BY-SA 2.0Summer afternoons in Chapman are warmer than in 85% of U.S. towns
The coldest hours of a January night bottom out at 19° on average. A year here swings 72° from midwinter lows to midsummer highs. It is a dry place: less rain and snow fall here than on 83% of U.S. towns. The frost-free window for a garden runs roughly April 17 to October 20.
A year in Chapman at a glance
Each month’s typical high and low, and what it brings.
What stands out about Chapman’s climate
Compared with towns across the U.S., with Chapman’s place in Kansas beside it.
What a year in Chapman feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 184 frost-free days a year
In half of years the last 32° night comes by April 17 and the first by October 20. Frost and day counts come from NOAA’s station at Chapman, KS, 0.9 miles from the town’s center, at about the same height.
The 2023 USDA map puts Chapman’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 15 inches of snow a winter
Snow, measured at Enterprise, KS, falls mostly in January and December. Precipitation (rain plus melted snow) adds up to 33 inches a year; May is the wettest month and January the driest. Rain or snow falls on about 84 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Chapman
79% 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 Chapman, KS.
Living with Chapman’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
184 frost-free days in zone 6b. The last frost comes by Apr 17 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 20.
Months with highs of 62–84° and lows of 40° or more: April, May, September and October.
Parks & trails →Of the yearly building losses FEMA expects in Chapman from natural hazards, river flooding is the largest share (42%); heat waves, cold waves, winter storms and ice storms together are 18%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Chapman and similar climates
TownRatings has no climate map of the towns around Chapman yet.
Climates most like Chapman’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 |
|---|---|---|---|---|
| Chapman, KS | 19° | 92° | 33" | 15" |
| Ponca City, OK | 24° | 93° | 37" | 7.9" |
| Warrensburg, MO | 21° | 89° | 41" | 12" |
| South Ogden, UT | 21° | 91° | 22" | 23" |
| East St. Louis, IL | 24° | 89° | 42" | 14" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Chapman averaged 1.0° warmer than the 1900s. The biggest change is in January (+2.5°).
A smaller shift than in 75% 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 Chapman compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Chapman’s place among Kansas’.
Chapman weather by month
Highs, lows and precipitation from NOAA’s grid at Chapman’s center; snow, wet days and snow on the ground from Enterprise, KS. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 41° | 19° | 0.7" | 4.1" | 4 | 23° – 42° |
| February | 46° | 23° | 1.1" | 3.3" | 4 | 26° – 43° |
| March | 57° | 33° | 2.0" | 1.8" | 7 | 37° – 57° |
| April | 67° | 42° | 3.1" | 0.1" | 9 | 48° – 61° |
| May | 77° | 53° | 5.0" | 0.0" | 10 | 58° – 74° |
| June | 87° | 63° | 4.5" | 0.0" | 9 | 69° – 81° |
| July | 92° | 68° | 4.4" | 0.0" | 9 | 75° – 87° |
| August | 89° | 66° | 4.1" | 0.0" | 9 | 72° – 85° |
| September | 82° | 57° | 2.7" | 0.0" | 7 | 64° – 76° |
| October | 69° | 45° | 2.5" | 0.0" | 7 | 50° – 62° |
| November | 55° | 32° | 1.4" | 0.9" | 5 | 36° – 51° |
| December | 43° | 23° | 1.2" | 4.3" | 6 | 21° – 38° |
| Year | 67° | 44° | 32.7" | 14.5" | 84 |
How much a month can swing
A normal is an average. March swings the most: from 1991 to 2020 its average ranged from 37° to 57°. June is the most reliable, staying within 11°.
Where Chapman’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 Chapman’s center.
- Snow: Enterprise, KS.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Chapman, KS, 0.9 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 Chapman’s climate
What is the weather like in Chapman?
A typical July afternoon reaches 92°, a January night drops to 19°, and about 15 inches of snow falls in a normal winter. Colder January nights than 63% of U.S. towns; hotter July afternoons than 85% of U.S. towns.
How cold does it get in Chapman in winter?
January nights average 19°. About 132 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 23°.
How much snow does Chapman get?
About 15 inches in a normal winter at Enterprise, KS, most of it in January and December.
How hot does it get in Chapman?
July, with a typical high of 92° and a low of 68°. About 57 days a year reach 90° and 7 reach 100° (Chapman, KS).
When is the first and last frost in Chapman?
In half of years the last spring frost (32°) comes by April 17 and the first fall frost by October 20, about 184 frost-free days, at Chapman, KS.
What growing zone is Chapman 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 Chapman?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Chapman getting warmer?
Yes: 1991–2020 averaged 1.0° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 75% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Chapman.
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.