Photo: Nyttend · Public domainA middle-of-the-road climate: Adams Township is close to most U.S. towns on every count
Nights in January average 20°. In January, nights here are colder than in 62% of U.S. towns. Since 1901–2000, the year has warmed by 1.0°, most of all in December. Garden planting can start around April 30; autumn frost returns near October 12.
A year in Adams Township at a glance
Each month’s typical high and low, and what it brings.
What stands out about Adams Township’s climate
Compared with towns across the U.S., with Adams Township’s place in Indiana beside it.
What a year in Adams Township feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 164 frost-free days a year
In half of years the last 32° night comes by April 30 and the first by October 12. Frost and day counts come from NOAA’s station at Rockville, IN, 1.6 miles from the town’s center, at about the same height.
The 2023 USDA map puts Adams Township’s center in zone 6a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −8°. 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 13 inches of snow a winter
Snow, measured at Rockville, IN, falls mostly in January. Precipitation (rain plus melted snow) adds up to 43 inches a year; June is the wettest month and February 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 Adams Township
86% 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 Rockville, IN.
Living with Adams Township’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
164 frost-free days in zone 6a. The last frost comes by Apr 30 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 12.
Months with highs of 62–84° and lows of 40° or more: April, May, June, September and October. 0.0 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Adams Township from natural hazards, river flooding is the largest share (35%); heat waves, cold waves, winter storms and ice storms together are 24%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Adams Township and its neighbors
Every town next door is within a degree of Adams Township in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Adams 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 |
|---|---|---|---|---|
| Adams Township, IN | 20° | 86° | 43" | 13" |
| West Carrollton, OH | 22° | 86° | 42" | 12" |
| Macon, MO | 18° | 87° | 42" | 15" |
| Moundsville, WV | 22° | 85° | 43" | 16" |
| Jerseyville, IL | 21° | 87° | 41" | 13" |
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 Adams Township averaged 1.0° warmer than the 1900s. The biggest change is in December (+2.0°).
A smaller shift than in 78% 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 Adams Township compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Adams Township’s place among Indiana’s.
Adams Township weather by month
Highs, lows and precipitation from NOAA’s grid at Adams Township’s center; snow, wet days and snow on the ground from Rockville, IN. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 36° | 20° | 2.9" | 5.1" | 8 | 9 | 20° – 39° |
| February | 40° | 23° | 2.4" | 2.8" | 7 | 5 | 19° – 42° |
| March | 52° | 32° | 3.2" | 1.1" | 8 | 1 | 35° – 56° |
| April | 64° | 41° | 4.7" | 0.1" | 10 | 0 | 45° – 58° |
| May | 74° | 52° | 4.5" | 0.0" | 11 | 0 | 57° – 71° |
| June | 83° | 61° | 5.2" | 0.0" | 10 | 0 | 68° – 75° |
| July | 86° | 64° | 4.2" | 0.0" | 9 | 0 | 69° – 81° |
| August | 84° | 62° | 3.3" | 0.0" | 8 | 0 | 69° – 78° |
| September | 79° | 54° | 3.1" | 0.0" | 6 | 0 | 61° – 71° |
| October | 66° | 43° | 3.6" | 0.0" | 8 | 0 | 50° – 60° |
| November | 52° | 33° | 3.5" | 0.3" | 8 | 0 | 35° – 50° |
| December | 40° | 25° | 2.9" | 3.6" | 9 | 5 | 19° – 42° |
| Year | 63° | 42° | 43.4" | 13.0" | 102 | 19 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 19° to 42°. June is the most reliable, staying within 8°.
Where Adams 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 Adams Township’s center.
- Snow: Rockville, IN (NOAA station in town).
- Frost, freezing nights, 90° and 100° days, heating and cooling: Rockville, IN, 1.6 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 Adams Township’s climate
What is the weather like in Adams Township?
A typical July afternoon reaches 86°, a January night drops to 20°, and about 13 inches of snow falls in a normal winter. Colder January nights than 62% of U.S. towns; hotter July afternoons than 52% of U.S. towns.
How cold does it get in Adams Township in winter?
January nights average 20°. About 111 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 20°.
How much snow does Adams Township get?
About 13 inches in a normal winter at Rockville, IN, most of it in January, with snow on the ground about 19 days a year.
How hot does it get in Adams Township?
July, with a typical high of 86° and a low of 64°. About 28 days a year reach 90° (Rockville, IN).
When is the first and last frost in Adams Township?
In half of years the last spring frost (32°) comes by April 30 and the first fall frost by October 12, about 164 frost-free days, at Rockville, IN.
What growing zone is Adams Township in?
Zone 6a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −8°.
What is the best time of year to visit Adams 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 Adams Township getting warmer?
Yes: 1991–2020 averaged 1.0° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 78% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Adams 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.