Photo: Momoneymoproblemz · CC BY-SA 4.0A middle-of-the-road climate: Warren Township is close to most U.S. towns on every count
In July the day’s top temperature is typically 84°. In January, nights here are colder than in 61% of U.S. towns. Since 1901–2000, the year has warmed by 0.9°, most of all in December. Plan time outside from April to June and August to October, when highs sit at 63–83°.
A year in Warren Township at a glance
Each month’s typical high and low, and what it brings.
What stands out about Warren Township’s climate
Compared with towns across the U.S., with Warren Township’s place in Indiana beside it.
What a year in Warren Township feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 183 frost-free days a year
In half of years the last 32° night comes by April 20 and the first by October 21. Frost and day counts come from NOAA’s station at Indianapolis Se Side, IN, 5 miles from the city’s center point, at about the same height.
The 2023 USDA map puts Warren Township’s center in zone 6a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −6°. 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 27 inches of snow a winter
Snow, measured at Castleton 2 S, IN, falls mostly in January. Precipitation (rain plus melted snow) adds up to 44 inches a year; June is the wettest month and February the driest. Rain or snow falls on about 134 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Warren 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 Indianapolis Se Side, IN.
Living with Warren Township’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
183 frost-free days in zone 6a. The last frost comes by Apr 20 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 21.
Months with highs of 62–84° and lows of 40° or more: April, May, June, August, September and October. 8.3 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Warren Township from natural hazards, river flooding is the largest share (48%); heat waves, cold waves, winter storms and ice storms together are 21%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Warren Township and its neighbors
Every town next door is within a degree of Warren Township in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Warren 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 |
|---|---|---|---|---|
| Warren Township, IN | 20° | 84° | 44" | 27" |
| Sunbury, PA | 20° | 84° | 43" | 29" |
| New Albany, OH | 20° | 84° | 43" | 28" |
| New Martinsville, WV | 22° | 85° | 46" | 27" |
| Hudson, NY | 17° | 85° | 43" | 31" |
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 Warren Township averaged 0.9° warmer than the 1900s. The biggest change is in December (+2.1°).
A smaller shift than in 85% 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. In a city of 108,000 people, part of the change is the city itself: pavement and buildings hold heat (the urban heat island).
How Warren Township compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Warren Township’s place among Indiana’s.
Warren Township weather by month
Highs, lows and precipitation from NOAA’s grid at Warren Township’s center; snow, wet days and snow on the ground from Castleton 2 S, IN. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 35° | 20° | 3.0" | 8.4" | 12 | 11 | 19° – 39° |
| February | 40° | 23° | 2.5" | 7.2" | 11 | 9 | 19° – 42° |
| March | 51° | 31° | 3.4" | 3.6" | 12 | 2 | 34° – 55° |
| April | 63° | 41° | 4.4" | 0.2" | 12 | 0 | 46° – 58° |
| May | 73° | 52° | 4.8" | 0.0" | 14 | 0 | 56° – 71° |
| June | 82° | 61° | 5.3" | 0.0" | 12 | 0 | 67° – 74° |
| July | 84° | 64° | 4.3" | 0.0" | 10 | 0 | 69° – 81° |
| August | 83° | 62° | 3.5" | 0.0" | 9 | 0 | 68° – 78° |
| September | 78° | 55° | 3.3" | 0.0" | 8 | 0 | 61° – 71° |
| October | 65° | 43° | 3.4" | 0.0" | 10 | 0 | 50° – 60° |
| November | 51° | 33° | 3.4" | 0.6" | 10 | 0 | 35° – 49° |
| December | 40° | 25° | 3.0" | 6.7" | 13 | 7 | 19° – 42° |
| Year | 62° | 43° | 44.1" | 26.7" | 134 | 30 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 19° to 42°. June is the most reliable, staying within 8°.
Where Warren 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 Warren Township’s center.
- Snow: Castleton 2 S, IN.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Indianapolis Se Side, IN, 5 miles from the city’s center point, 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 Warren Township’s climate
What is the weather like in Warren Township?
A typical July afternoon reaches 84°, a January night drops to 20°, and about 27 inches of snow falls in a normal winter. Colder January nights than 61% of U.S. towns; cooler July afternoons than 57% of U.S. towns.
How cold does it get in Warren Township in winter?
January nights average 20°. About 120 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 19°.
How much snow does Warren Township get?
About 27 inches in a normal winter at Castleton 2 S, IN, most of it in January, with snow on the ground about 30 days a year.
How hot does it get in Warren Township?
July, with a typical high of 84° and a low of 64°. About 13 days a year reach 90° (Indianapolis Se Side, IN).
When is the first and last frost in Warren Township?
In half of years the last spring frost (32°) comes by April 20 and the first fall frost by October 21, about 183 frost-free days, at Indianapolis Se Side, IN.
What growing zone is Warren Township in?
Zone 6a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −6°.
What is the best time of year to visit Warren Township?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, June, August, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Warren Township getting warmer?
Yes: 1991–2020 averaged 0.9° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 85% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Warren 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.