Photo: John Bowers · Public domainAfternoon heat in Scammon beats that of 79% of U.S. towns
In January the night’s low is typically 25°. From frosty January to warm July, readings climb 66°. Its yearly precipitation tops that of 63% of U.S. towns. Garden planting can start around April 5; autumn frost returns near October 31.
A year in Scammon at a glance
Each month’s typical high and low, and what it brings.
What stands out about Scammon’s climate
Compared with towns across the U.S., with Scammon’s place in Kansas beside it.
What a year in Scammon feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 208 frost-free days a year
In half of years the last 32° night comes by April 5 and the first by October 31. Frost and day counts come from NOAA’s station at Columbus, KS, 7 miles from the town’s center, at about the same height.
The 2023 USDA map puts Scammon’s center in zone 7a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 2°. 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 7 inches of snow a winter
Snow, measured at Columbus, KS, falls mostly in January and December. Precipitation (rain plus melted snow) adds up to 46 inches a year; May is the wettest month and January the driest. Rain or snow falls on about 102 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Scammon
74% of the work is heating. Months averaging under 55° run from November through March.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Columbus, KS.
Living with Scammon’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
208 frost-free days in zone 7a. The last frost comes by Apr 5 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 31.
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 Scammon from natural hazards, river flooding is the largest share (45%); heat waves, cold waves, winter storms and ice storms together are 19%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Scammon and its neighbors
Every town next door is within a degree of Scammon in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Scammon’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 |
|---|---|---|---|---|
| Scammon, KS | 25° | 90° | 46" | 7.2" |
| Cape Girardeau, MO | 26° | 89° | 48" | 7.5" |
| Mechanicsville, VA | 28° | 89° | 46" | 8.8" |
| Fruitland, MD | 27° | 89° | 46" | 8.0" |
| Washington, DC | 27° | 89° | 44" | 5.8" |
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 Scammon averaged 0.7° warmer than the 1900s. The biggest change is in January (+1.9°).
A smaller shift than in 94% 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 Scammon compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Scammon’s place among Kansas’.
Scammon weather by month
Highs, lows and precipitation from NOAA’s grid at Scammon’s center; snow, wet days and snow on the ground from Columbus, KS. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 44° | 25° | 1.7" | 2.3" | 7 | 4 | 29° – 45° |
| February | 49° | 29° | 1.9" | 1.1" | 6 | 1 | 31° – 47° |
| March | 59° | 38° | 3.2" | 1.3" | 10 | 1 | 42° – 60° |
| April | 69° | 46° | 5.0" | 0.0" | 10 | 0 | 51° – 64° |
| May | 77° | 56° | 6.7" | 0.0" | 12 | 0 | 62° – 74° |
| June | 86° | 65° | 5.5" | 0.0" | 10 | 0 | 71° – 80° |
| July | 90° | 70° | 4.2" | 0.0" | 8 | 0 | 75° – 87° |
| August | 90° | 68° | 3.7" | 0.0" | 7 | 0 | 72° – 84° |
| September | 82° | 59° | 4.6" | 0.0" | 8 | 0 | 66° – 77° |
| October | 71° | 47° | 3.8" | 0.0" | 9 | 0 | 52° – 65° |
| November | 58° | 37° | 3.1" | 0.2" | 8 | 0 | 41° – 56° |
| December | 47° | 28° | 2.3" | 2.3" | 7 | 3 | 24° – 44° |
| Year | 68° | 47° | 45.7" | 7.2" | 102 | 8 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 24° to 44°. June is the most reliable, staying within 9°.
Where Scammon’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 Scammon’s center.
- Snow: Columbus, KS.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Columbus, KS, 7 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 Scammon’s climate
What is the weather like in Scammon?
A typical July afternoon reaches 90°, a January night drops to 25°, and about 7 inches of snow falls in a normal winter. Milder January nights than 62% of U.S. towns; hotter July afternoons than 79% of U.S. towns.
How cold does it get in Scammon in winter?
January nights average 25°. About 95 nights a year reach 32° or below and 1 reach 0° or below. In the coldest January of the last 30 years the month averaged 29°.
How much snow does Scammon get?
About 7.2 inches in a normal winter at Columbus, KS, most of it in January and December, with snow on the ground about 8 days a year.
How hot does it get in Scammon?
July, with a typical high of 90° and a low of 70°. About 46 days a year reach 90° and 4 reach 100° (Columbus, KS).
When is the first and last frost in Scammon?
In half of years the last spring frost (32°) comes by April 5 and the first fall frost by October 31, about 208 frost-free days, at Columbus, KS.
What growing zone is Scammon in?
Zone 7a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 2°.
What is the best time of year to visit Scammon?
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 Scammon getting warmer?
Yes: 1991–2020 averaged 0.7° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 94% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Scammon.
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.