Greensburg, Indiana climate: Normal weather by month, frost dates and records
Greensburg's normal year runs from 22°F January nights to 85°F July afternoons, with 47.0 inches of precipitation and 13 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 12.0°C, January lows of −6°C, July highs of 29°C, 1,194 mm of precipitation a year.
- NOAA stationGreensburg
- Station IDUSC00123547
- Location39.35°N 85.49°W
- Elevation937 ft (286 m)
- Population12,317
On October 23, the normal high in Greensburg is 63°F and the normal low 43°F, and the chance of measurable rain or snow is 28%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Greensburg.
- Jan 36° 22°
- Feb 41° 24°
- Mar 51° 33°
- Apr 64° 44°
- May 74° 55°
- Jun 82° 63°
- Jul 85° 66°
- Aug 83° 64°
- Sep 78° 57°
- Oct 66° 46°
- Nov 52° 35°
- Dec 41° 27°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Greensburg each month?
July is the warmest month, with normal highs of 85°F; January the coldest, with normal lows of 22°F. The most precipitation falls in June (5.41 in), the least in February (2.76 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 36°F | 22°F | 28.9°F | 3.40 | 4.4 | 11 | <1 | 26 | 9 h 40 min |
| February | 41°F | 24°F | 32.4°F | 2.76 | 3.8 | 9 | <1 | 23 | 10 h 40 min |
| March | 51°F | 33°F | 41.9°F | 3.77 | 1.7 | 11 | <1 | 17 | 11 h 50 min |
| April | 64°F | 44°F | 53.7°F | 4.91 | 0.0 | 13 | <1 | 4 | 13 h 10 min |
| May | 74°F | 55°F | 64.1°F | 5.08 | 0.0 | 13 | <1 | <1 | 14 h 20 min |
| June | 82°F | 63°F | 72.4°F | 5.41 | 0.0 | 11 | 3 | <1 | 15 h |
| July | 85°F | 66°F | 75.4°F | 3.97 | 0.0 | 10 | 5 | <1 | 14 h 40 min |
| August | 83°F | 64°F | 73.9°F | 4.03 | 0.0 | 8 | 5 | <1 | 13 h 50 min |
| September | 78°F | 57°F | 67.5°F | 3.24 | 0.0 | 8 | 2 | <1 | 12 h 30 min |
| October | 66°F | 46°F | 55.7°F | 3.37 | 0.1 | 8 | <1 | 3 | 11 h 10 min |
| November | 52°F | 35°F | 43.4°F | 3.60 | 0.2 | 9 | <1 | 14 | 10 h |
| December | 41°F | 27°F | 33.6°F | 3.47 | 3.1 | 11 | <1 | 23 | 9 h 30 min |
| Year (annual) | 63°F | 45°F | 53.6°F | 47.01 | 13.3 | 122 | 16 | 109 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 2°C | −6°C | −1.7°C | 86 mm | 11 cm |
| February | 5°C | −4°C | 0.2°C | 70 mm | 10 cm |
| March | 11°C | 0°C | 5.5°C | 96 mm | 4 cm |
| April | 18°C | 6°C | 12.1°C | 125 mm | 0 cm |
| May | 23°C | 13°C | 17.8°C | 129 mm | 0 cm |
| June | 28°C | 17°C | 22.4°C | 137 mm | 0 cm |
| July | 29°C | 19°C | 24.1°C | 101 mm | 0 cm |
| August | 29°C | 18°C | 23.3°C | 102 mm | 0 cm |
| September | 25°C | 14°C | 19.7°C | 82 mm | 0 cm |
| October | 19°C | 8°C | 13.2°C | 86 mm | 0 cm |
| November | 11°C | 2°C | 6.3°C | 91 mm | 1 cm |
| December | 5°C | −3°C | 0.9°C | 88 mm | 8 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00123547; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Greensburg?
Normal highs sit between 65°F and 85°F in May, June, July, August, September and October. Of those, September has the fewest days with rain (8).
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.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00123547.
When is the last frost in Greensburg?
In Greensburg, the last spring frost (32°F) comes after April 15 in half of years and after May 2 in one year in ten; the first autumn frost comes before October 26 in half of years and before October 12 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 151 year in 10 after May 2; 9 in 10 after March 31
- First autumn frost, half of years before
- October 261 year in 10 before October 12; 9 in 10 before November 7
NOAA puts the median frost-free season at 194 days, and the season without a hard freeze (28°F) at 216 days.
A hard freeze (28°F) comes after April 2 in half of springs and before November 5 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Greensburg in zone 6b in ZIP code 47240, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Greensburg's NOAA station is in zone 6b: the coldest night of a typical year reaches −2°F (24 complete years).
Frost dates for every NOAA station in Indiana · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00123547; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Greensburg?
In a normal year in Greensburg, 16 days a year reach 90°F, 109 nights fall to 32°F or colder and 122 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
- 109a normal year
- Days that stay below freezing
- 30high of 32°F or less
- Days with 0.01 inch of precipitation
- 122a normal year
- Days with 1 inch of snow or more
- 7a normal year
The highest temperature in this station's record (since 1985) is 101°F, on June 26, 1988; the lowest is −21°F, on January 19, 1994.
The wettest calendar year on that record is 2018, with 61.72 in; the snowiest season is 2009–10, with 27.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00123547; records: ACIS (NOAA Regional Climate Centers), station USC00123547. Records use complete months only; a month missing more than three days is left out.
How sunny is Greensburg?
Over a year 73% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Greensburg, 4.0 kWh per square metre a day. August is the sunniest month (81%) and December the cloudiest (58%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 60% | 1.8 |
| February | 62% | 2.6 |
| March | 66% | 3.6 |
| April | 71% | 4.9 |
| May | 72% | 5.5 |
| June | 79% | 6.2 |
| July | 80% | 6.1 |
| August | 81% | 5.6 |
| September | 79% | 4.5 |
| October | 73% | 3.2 |
| November | 69% | 2.2 |
| December | 58% | 1.5 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Greensburg need?
A normal year in Greensburg brings 5,253 heating degree days, 2% fewer than the median U.S. place (5,373), and 1,121 cooling degree days, 24% more 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 3,710 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,119 | 0 |
| February | 914 | 0 |
| March | 721 | 3 |
| April | 358 | 17 |
| May | 125 | 97 |
| June | 15 | 238 |
| July | 1 | 323 |
| August | 4 | 279 |
| September | 63 | 138 |
| October | 312 | 24 |
| November | 649 | 1 |
| December | 973 | 0 |
| Year (annual) | 5,253 | 1,121 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00123547. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Greensburg been warmer than normal lately?
Over 69 complete years from 1899 to 2019, 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.
Source: trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Greensburg's climate compare?
Greensburg is warmer than 68 of the other 98 places with their own NOAA record in Indiana, and wetter than 67. Across the 7,247 U.S. stations with normals, its annual mean of 53.6°F is warmer than 55%.
In the Köppen classification computed from these normals, Greensburg is Dfa: continental, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Greensburg share this climate record?
15 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.
- Lake Santee, IN1,051 people · 11 mi NE
- St. Paul, IN966 people · 9 mi NW
- Hartsville, IN321 people · 13 mi SW
- New Point, IN316 people · 9 mi E
- Geneva, IN276 people · 13 mi W
- Napoleon, IN238 people · 13 mi SE
- Millhousen, IN147 people · 10 mi S
- Adams, IN105 people · 5 mi NW
- Clarksburg, IN90 people · 10 mi NE
- Milford, IN81 people · 7 mi W
- Letts, IN53 people · 9 mi SW
- St. Omer, IN46 people · 8 mi NW
- Sandusky, IN26 people · 5 mi N
- Hamburg, IN22 people · 13 mi E
- Burney, IN0 people · 8 mi W
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Greensburg's climate
What is the coldest month in Greensburg?
January, with a normal high of 36°F and a normal low of 22°F. The warmest is July (85°F by day, 66°F at night).
Does it snow in Greensburg?
Yes: 13 inches in a normal year, falling on 10 days with 0.1 inch or more, the most in January (4.4 inches).
What is the rainiest month in Greensburg?
June, with 5.41 in of precipitation in a normal year; the driest is February with 2.76 in.
What plant hardiness zone is Greensburg in?
The USDA's 2023 map puts Greensburg in zone 6b in ZIP code 47240, the nearest ZIP area. By the same method at Greensburg's NOAA station, the coldest night of a typical year reaches −2°F (24 years, 1991-2020): zone 6b.
How late can frost come in Greensburg?
In half of years the last 32°F night comes after April 15; in one year in ten it comes after May 2. Waiting until May 2 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Indiana climateThe statewide normals and every place in the state
- Rushville, IN18 miles from this station, 51.7°F a year
- Shelbyville, IN23 miles from this station, 54.2°F a year
- North Vernon, IN25 miles from this station, 54.8°F a year
- Brookville, IN26 miles from this station, 53.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made