Photo: Thrive Allen County · CC BY-SA 4.0Iola’s winters are milder and less snowy than most of the U.S.
A typical July afternoon reaches 90°, a January night drops to 22°, and about 7 inches of snow falls in a normal winter.
A year in Iola at a glance
Each month’s typical high and low, and what it brings.
What stands out about Iola’s climate
Compared with towns across the U.S., with Iola’s place in Kansas beside it.
What a year in Iola feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 200 frost-free days a year
In half of years the last 32° night comes by April 8 and the first by October 26. Frost and day counts come from NOAA’s station at Iola 1 W, KS, 1.4 miles from the town’s center, at about the same height.
The 2023 USDA map puts Iola’s center in zone 6b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −1°. 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 Iola 1 W, KS, falls mostly in January. Precipitation (rain plus melted snow) adds up to 42 inches a year; May is the wettest month and January the driest. Rain or snow falls on about 89 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Iola
77% 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 Iola 1 W, KS.
Living with Iola’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
200 frost-free days in zone 6b. The last frost comes by Apr 8 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 26.
Months with highs of 62–84° and lows of 40° or more: April, May, September and October. 12 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Iola from natural hazards, river flooding is the largest share (44%); heat waves, cold waves, winter storms and ice storms together are 21%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Iola and its neighbors
Every town next door is within a degree of Iola in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Iola’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 |
|---|---|---|---|---|
| Iola, KS | 22° | 90° | 42" | 7.4" |
| Washington, MO | 21° | 89° | 43" | 7.9" |
| Columbia, IL | 24° | 89° | 42" | 8.8" |
| Fredericksburg, VA | 25° | 89° | 43" | 11" |
| 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 Iola averaged 0.4° warmer than the 1900s. The biggest change is in January (+1.8°).
A smaller shift than in all but 146 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 Iola compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Iola’s place among Kansas’.
Iola weather by month
Highs, lows and precipitation from NOAA’s grid at Iola’s center; snow, wet days and snow on the ground from Iola 1 W, KS. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 42° | 22° | 1.2" | 2.7" | 5 | 4 | 26° – 42° |
| February | 48° | 26° | 1.6" | 1.1" | 5 | 2 | 29° – 45° |
| March | 58° | 36° | 2.6" | 1.0" | 8 | 1 | 40° – 58° |
| April | 67° | 45° | 4.3" | 0.0" | 9 | 0 | 49° – 62° |
| May | 76° | 55° | 5.8" | 0.0" | 11 | 0 | 60° – 73° |
| June | 85° | 65° | 5.4" | 0.0" | 9 | 0 | 70° – 79° |
| July | 90° | 69° | 4.4" | 0.0" | 8 | 0 | 75° – 86° |
| August | 89° | 67° | 4.1" | 0.0" | 7 | 0 | 71° – 84° |
| September | 81° | 58° | 4.3" | 0.0" | 7 | 0 | 65° – 76° |
| October | 70° | 46° | 3.5" | 0.0" | 8 | 0 | 51° – 63° |
| November | 56° | 35° | 2.4" | 0.2" | 6 | 0 | 39° – 54° |
| December | 45° | 26° | 1.8" | 2.4" | 5 | 3 | 22° – 41° |
| Year | 67° | 46° | 41.6" | 7.4" | 89 | 10 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 22° to 41°. June is the most reliable, staying within 9°.
Where Iola’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 Iola’s center.
- Snow: Iola 1 W, KS (NOAA station in town).
- Frost, freezing nights, 90° and 100° days, heating and cooling: Iola 1 W, KS, 1.4 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 Iola’s climate
What is the weather like in Iola?
A typical July afternoon reaches 90°, a January night drops to 22°, and about 7 inches of snow falls in a normal winter. Milder January nights than 51% of U.S. towns; hotter July afternoons than 75% of U.S. towns.
How cold does it get in Iola in winter?
January nights average 22°. About 106 nights a year reach 32° or below and 2 reach 0° or below. In the coldest January of the last 30 years the month averaged 26°.
How much snow does Iola get?
About 7.4 inches in a normal winter at Iola 1 W, KS, most of it in January, with snow on the ground about 10 days a year.
How hot does it get in Iola?
July, with a typical high of 90° and a low of 69°. About 40 days a year reach 90° and 2 reach 100° (Iola 1 W, KS).
When is the first and last frost in Iola?
In half of years the last spring frost (32°) comes by April 8 and the first fall frost by October 26, about 200 frost-free days, at Iola 1 W, KS.
What growing zone is Iola in?
Zone 6b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −1°.
What is the best time of year to visit Iola?
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 Iola getting warmer?
Yes: 1991–2020 averaged 0.4° warmer than 1901–2000 on NOAA’s grid. A smaller shift than all but 146 U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Iola.
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.