Photo: Stickman42 · CC BY-SA 4.0Dubois gets more rain and snow than 83% of U.S. towns: 50 inches of precipitation a year
On a normal January night the air cools to about 22°. A year here swings 65° from midwinter lows to midsummer highs. By July afternoons alone, it runs hotter than 61% of U.S. towns. Keep the boiler serviced for the months from November to March, which average under 50°.
A year in Dubois at a glance
Each month’s typical high and low, and what it brings.
What stands out about Dubois’ climate
Compared with towns across the U.S., with Dubois’ place in Indiana beside it.
What a year in Dubois feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 172 frost-free days a year
In half of years the last 32° night comes by April 25 and the first by October 15. Frost and day counts come from NOAA’s station at Dubois S In Forage Fm, IN, 5 miles from the town’s center, 180 ft higher.
The 2023 USDA map puts Dubois’ center in zone 6b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −3°. 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 Dubois S In Forage Fm, IN, falls mostly in January and December. Precipitation (rain plus melted snow) adds up to 50 inches a year; May is the wettest month and February the driest. Rain or snow falls on about 120 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Dubois
84% of the work is heating. Months averaging under 55° run from November 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 Dubois S In Forage Fm, IN.
Living with Dubois’ climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
172 frost-free days in zone 6b. The last frost comes by Apr 25 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 15.
Months with highs of 62–84° and lows of 40° or more: April, May, June, September and October.
Parks & trails →Of the yearly building losses FEMA expects in Dubois from natural hazards, river flooding is the largest share (63%); heat waves, cold waves, winter storms and ice storms together are 8%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Dubois and its neighbors
Every town next door is within a degree of Dubois in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Dubois’, 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 |
|---|---|---|---|---|
| Dubois, IN | 22° | 87° | 50" | 13" |
| Lansdale, PA | 22° | 86° | 49" | 13" |
| Hockessin, DE | 24° | 86° | 48" | 12" |
| Mount Sterling, KY | 24° | 87° | 50" | 8.8" |
| Owings Mills, MD | 24° | 87° | 48" | 19" |
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 Dubois averaged 0.8° warmer than the 1900s. The biggest change is in February (+2.2°).
A smaller shift than in 89% 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 Dubois compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Dubois’ place among Indiana’s.
Dubois weather by month
Highs, lows and precipitation from NOAA’s grid at Dubois’ center; snow, wet days and snow on the ground from Dubois S In Forage Fm, IN. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 40° | 22° | 3.5" | 4.1" | 10 | 24° – 42° |
| February | 45° | 25° | 3.2" | 3.5" | 9 | 24° – 45° |
| March | 55° | 33° | 4.5" | 1.1" | 11 | 36° – 58° |
| April | 67° | 42° | 5.3" | 0.0" | 12 | 48° – 60° |
| May | 76° | 53° | 5.8" | 0.0" | 13 | 58° – 72° |
| June | 84° | 61° | 5.0" | 0.0" | 11 | 68° – 77° |
| July | 87° | 65° | 4.5" | 0.0" | 10 | 71° – 82° |
| August | 86° | 63° | 3.2" | 0.0" | 9 | 70° – 80° |
| September | 80° | 55° | 3.6" | 0.0" | 8 | 63° – 73° |
| October | 69° | 44° | 3.4" | 0.2" | 9 | 52° – 62° |
| November | 55° | 34° | 4.1" | 0.0" | 9 | 38° – 51° |
| December | 45° | 27° | 3.9" | 3.8" | 10 | 22° – 45° |
| Year | 66° | 44° | 49.8" | 12.7" | 120 |
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 45°. June is the most reliable, staying within 9°.
Where Dubois’ 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 Dubois’ center.
- Snow: Dubois S In Forage Fm, IN.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Dubois S In Forage Fm, IN, 5 miles from the town’s center, 180 ft higher; 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 Dubois’ climate
What is the weather like in Dubois?
A typical July afternoon reaches 87°, a January night drops to 22°, and about 13 inches of snow falls in a normal winter. Milder January nights than 53% of U.S. towns; hotter July afternoons than 61% of U.S. towns.
How cold does it get in Dubois in winter?
January nights average 22°. About 112 nights a year reach 32° or below and 3 reach 0° or below. In the coldest January of the last 30 years the month averaged 24°.
How much snow does Dubois get?
About 13 inches in a normal winter at Dubois S In Forage Fm, IN, most of it in January and December.
How hot does it get in Dubois?
July, with a typical high of 87° and a low of 65°. About 31 days a year reach 90° (Dubois S In Forage Fm, IN).
When is the first and last frost in Dubois?
In half of years the last spring frost (32°) comes by April 25 and the first fall frost by October 15, about 172 frost-free days, at Dubois S In Forage Fm, IN.
What growing zone is Dubois in?
Zone 6b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −3°.
What is the best time of year to visit Dubois?
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 Dubois getting warmer?
Yes: 1991–2020 averaged 0.8° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 89% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Dubois.
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.