Fort Wayne, Indiana climate: Normal weather by month, frost dates and records

What is the weather like in Fort Wayne each month?

July is the warmest month, with normal highs of 84°F; January the coldest, with normal lows of 18°F. The most precipitation falls in May (4.58 in), the least in February (2.06 in).

Each month has its own page with the day-by-day normals, the month's records and its recent years:

• Jan
• Feb
• Mar
• Apr
• May
• Jun
• Jul
• Aug
• Sep
• Oct
• Nov
• Dec

When is the best weather to visit Fort Wayne?

Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, September has the fewest days with rain (9).

That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.

When is the last frost in Fort Wayne?

In Fort Wayne, the last spring frost (32°F) comes after April 24 in half of years and after May 10 in one year in ten; the first autumn frost comes before October 21 in half of years and before October 8 in one year in ten.

Last spring frost, half of years after

April 241 year in 10 after May 10; 9 in 10 after April 10

First autumn frost, half of years before

October 211 year in 10 before October 8; 9 in 10 before November 1

NOAA puts the median frost-free season at 178 days, and the season without a hard freeze (28°F) at 203 days.

A hard freeze (28°F) comes after April 12 in half of springs and before November 1 in half of autumns.

The USDA's 2023 Plant Hardiness Zone Map puts Fort Wayne in zone 6a across its 15 ZIP code areas (6a in 46804, the largest). By the map's own method, the average of each year's coldest night over 1991-2020, Fort Wayne's NOAA station is in zone 6a: the coldest night of a typical year reaches −7°F (30 complete years).

Frost dates for every NOAA station in Indiana · Frost dates by ZIP code

What hardiness zone is each Fort Wayne ZIP code in?

The USDA's 2023 map gives each ZIP code area one zone. Fort Wayne's 15 ZIP code areas are all in zone 6a. Each ZIP's frost dates are in the frost tool.

How hot and how cold does it get in Fort Wayne?

In a normal year in Fort Wayne, 16 days a year reach 90°F, 124 nights fall to 32°F or colder and 135 days bring measurable precipitation.

Days at 90°F or more

16a normal year

Days at 100°F or more

fewer than 1a normal year

Nights at 32°F or colder

124a normal year

Days that stay below freezing

40high of 32°F or less

Days with 0.01 inch of precipitation

135a normal year

Days with 1 inch of snow or more

11a normal year

The highest temperature in Fort Wayne's official record (kept by the National Weather Service since 1897) is 106°F, on June 25, 1988; the lowest is −24°F, on January 12, 1918.

The wettest calendar year on that record is 1990, with 54.58 in; the snowiest season is 1981–82, with 81.2 inches.

How humid and windy is Fort Wayne, and how clear are its skies?

The summer (June-August) dew point averages 62°F. The muggiest month is July, with an average dew point of 63°F; the driest air comes in January (20°F). December is the windiest month (10.7 mph on average), and August has the most clear or nearly clear hours (46%).

How sunny is Fort Wayne?

Over a year 72% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Fort Wayne, 3.9 kWh per square metre a day. August is the sunniest month (81%) and December the cloudiest (57%). Among the 459 U.S. places of 50,000 or more, that ranks tied 385th (with 30 others) in sunshine.

How much heating and cooling does Fort Wayne need?

A normal year in Fort Wayne brings 5,968 heating degree days, 11% more than the median U.S. place (5,373), and 849 cooling degree days, 6% fewer than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 3,178 growing degree days a year above 50°F.

Has Fort Wayne been warmer than normal lately?

2025 averaged 51.3°F, 0.4°F above the 1991-2020 normal of 50.9°F. 4 of the 5 complete years since 2021 ran warmer than the normal.

Over 84 complete years from 1941 to 2025, the station's annual mean temperature rose at a fitted 3.2°F per century (+0.18°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.

Which places near Fort Wayne share this climate record?

4 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.

• Roanoke, IN1,796 people · 9 mi W
• Zanesville, IN593 people · 5 mi SW
• Hessen Cassel, IN176 people · 7 mi E
• Arcola, IN139 people · 10 mi NW

Nearby and next

• Fort Wayne in OctoberThis month day by day, its records and recent years
• Indiana climateThe statewide normals and every place in the state
• Bluffton, IN11 miles from this station, 50.1°F a year
• Decatur, IN17 miles from this station, 50.7°F a year
• Huntington, IN17 miles from this station, 50.1°F a year
• Columbia City, IN19 miles from this station, 49.5°F a year
• Compare two placesMonth by month, side by side

Download these normals (CSV) · JSON · How these figures are made