Photo: Tysto · Public domainJanuary in Osceola bites harder than in 75% of U.S. towns
On a normal July day the thermometer tops out near 83°. Expect the heaviest rain or snow in May and the lightest in February. By July afternoons alone, it runs cooler than 66% of U.S. towns. Long walks are most pleasant from May to October, when afternoons reach 63–83°.
A year in Osceola at a glance
Each month’s typical high and low, and what it brings.
What stands out about Osceola’s climate
Compared with towns across the U.S., with Osceola’s place in Indiana beside it.
What a year in Osceola feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 181 frost-free days a year
In half of years the last 32° night comes by April 23 and the first by October 23. Frost and day counts come from NOAA’s station at S Bend, IN, 9 miles from the town’s center, at about the same height.
The 2023 USDA map puts Osceola’s center in zone 6a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −7°. 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 37 inches of snow a winter
Snow, measured at Elkhart Pub Wks & Ut, IN, is heaviest from January through February, about 11 inches a month. Precipitation (rain plus melted snow) adds up to 39 inches a year; May is the wettest month and February the driest. Rain or snow falls on about 144 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Osceola
89% of the work is heating, so the furnace matters far more than the air conditioner. 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 S Bend, IN.
Living with Osceola’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
181 frost-free days in zone 6a. The last frost comes by Apr 23 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 23.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August, September and October. 1.9 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Osceola from natural hazards, river flooding is the largest share (49%); heat waves, cold waves, winter storms and ice storms together are 29%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Osceola and similar climates
TownRatings has no climate map of the towns around Osceola yet.
Climates most like Osceola’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 |
|---|---|---|---|---|
| Osceola, IN | 17° | 83° | 39" | 37" |
| Willard, OH | 18° | 83° | 39" | 33" |
| Sayre, PA | 17° | 84° | 37" | 35" |
| Kinderhook, NY | 16° | 84° | 42" | 31" |
| Kewanee, IL | 14° | 84° | 39" | 31" |
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 Osceola averaged 1.4° warmer than the 1900s. The biggest change is in December (+2.7°).
A bigger shift than in 54% 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 Osceola compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Osceola’s place among Indiana’s.
Osceola weather by month
Highs, lows and precipitation from NOAA’s grid at Osceola’s center; snow, wet days and snow on the ground from Elkhart Pub Wks & Ut, IN. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 32° | 17° | 2.6" | 11.7" | 15 | 15 | 15° – 36° |
| February | 36° | 19° | 2.2" | 11.2" | 12 | 12 | 15° – 38° |
| March | 47° | 28° | 2.3" | 3.7" | 11 | 4 | 29° – 52° |
| April | 60° | 37° | 3.6" | 0.4" | 13 | 0 | 41° – 54° |
| May | 71° | 48° | 4.2" | 0.0" | 13 | 0 | 53° – 66° |
| June | 80° | 58° | 4.2" | 0.0" | 12 | 0 | 64° – 73° |
| July | 83° | 62° | 4.0" | 0.0" | 10 | 0 | 68° – 79° |
| August | 81° | 60° | 4.0" | 0.0" | 11 | 0 | 66° – 76° |
| September | 75° | 52° | 3.4" | 0.0" | 10 | 0 | 59° – 68° |
| October | 63° | 42° | 3.5" | 0.0" | 13 | 0 | 49° – 59° |
| November | 48° | 32° | 2.9" | 1.9" | 12 | 1 | 33° – 47° |
| December | 37° | 23° | 2.5" | 8.0" | 14 | 8 | 16° – 40° |
| Year | 59° | 40° | 39.3" | 36.9" | 144 | 40 |
How much a month can swing
A normal is an average. March swings the most: from 1991 to 2020 its average ranged from 29° to 52°. June is the most reliable, staying within 9°.
Where Osceola’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 Osceola’s center.
- Snow: Elkhart Pub Wks & Ut, IN.
- Frost, freezing nights, 90° and 100° days, heating and cooling: S Bend, IN, 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 Osceola’s climate
What is the weather like in Osceola?
A typical July afternoon reaches 83°, a January night drops to 17°, and about 37 inches of snow falls in a normal winter. Colder January nights than 75% of U.S. towns; cooler July afternoons than 66% of U.S. towns.
How cold does it get in Osceola in winter?
January nights average 17°. About 133 nights a year reach 32° or below and 5 reach 0° or below. In the coldest January of the last 30 years the month averaged 15°.
How much snow does Osceola get?
About 37 inches in a normal winter at Elkhart Pub Wks & Ut, IN, heaviest from January through February, about 11 inches a month, with snow on the ground about 40 days a year.
How hot does it get in Osceola?
July, with a typical high of 83° and a low of 62°. About 17 days a year reach 90° (S Bend, IN).
When is the first and last frost in Osceola?
In half of years the last spring frost (32°) comes by April 23 and the first fall frost by October 23, about 181 frost-free days, at S Bend, IN.
What growing zone is Osceola in?
Zone 6a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −7°.
What is the best time of year to visit Osceola?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Osceola getting warmer?
Yes: 1991–2020 averaged 1.4° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 54% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Osceola.
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.