Greensburg, Kentucky climate: Normal weather by month, frost dates and records
Greensburg's normal year runs from 26°F January nights to 88°F July afternoons, with 51.7 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 13.8°C, January lows of −4°C, July highs of 31°C, 1,314 mm of precipitation a year.
- NOAA stationGreensburg
- Station IDUSC00153430
- Location37.26°N 85.50°W
- Elevation585 ft (178 m)
- Population2,245
On October 23, the normal high in Greensburg is 69°F and the normal low 41°F, and the chance of measurable rain or snow is 26%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Greensburg.
- Jan 45° 26°
- Feb 49° 28°
- Mar 59° 34°
- Apr 70° 43°
- May 78° 54°
- Jun 85° 63°
- Jul 88° 67°
- Aug 88° 65°
- Sep 82° 57°
- Oct 71° 44°
- Nov 59° 34°
- Dec 48° 29°
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 88°F; January the coldest, with normal lows of 26°F. The most precipitation falls in May (5.05 in), the least in August (3.22 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 45°F | 26°F | 35.1°F | 3.87 | 10 | <1 | 24 | 9 h 50 min |
| February | 49°F | 28°F | 38.6°F | 4.23 | 9 | <1 | 21 | 10 h 50 min |
| March | 59°F | 34°F | 46.5°F | 4.76 | 11 | <1 | 15 | 11 h 50 min |
| April | 70°F | 43°F | 56.3°F | 4.84 | 11 | <1 | 4 | 13 h 10 min |
| May | 78°F | 54°F | 65.7°F | 5.05 | 10 | 1 | <1 | 14 h 10 min |
| June | 85°F | 63°F | 74.0°F | 4.74 | 11 | 8 | <1 | 14 h 40 min |
| July | 88°F | 67°F | 77.6°F | 4.92 | 10 | 13 | <1 | 14 h 30 min |
| August | 88°F | 65°F | 76.4°F | 3.22 | 7 | 13 | <1 | 13 h 40 min |
| September | 82°F | 57°F | 69.6°F | 4.00 | 7 | 5 | <1 | 12 h 30 min |
| October | 71°F | 44°F | 57.8°F | 3.73 | 8 | <1 | 4 | 11 h 20 min |
| November | 59°F | 34°F | 46.4°F | 3.68 | 9 | <1 | 15 | 10 h 10 min |
| December | 48°F | 29°F | 38.6°F | 4.68 | 11 | <1 | 21 | 9 h 40 min |
| Year (annual) | 69°F | 45°F | 56.9°F | 51.72 | 112 | 41 | 103 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 7°C | −4°C | 1.7°C | 98 mm |
| February | 10°C | −2°C | 3.7°C | 107 mm |
| March | 15°C | 1°C | 8.1°C | 121 mm |
| April | 21°C | 6°C | 13.5°C | 123 mm |
| May | 25°C | 12°C | 18.7°C | 128 mm |
| June | 30°C | 17°C | 23.3°C | 120 mm |
| July | 31°C | 19°C | 25.3°C | 125 mm |
| August | 31°C | 18°C | 24.7°C | 82 mm |
| September | 28°C | 14°C | 20.9°C | 102 mm |
| October | 22°C | 7°C | 14.3°C | 95 mm |
| November | 15°C | 1°C | 8.0°C | 93 mm |
| December | 9°C | −2°C | 3.7°C | 119 mm |
NOAA publishes no 1991-2020 snowfall normal for this station, and no record within 25 miles keeps one, so snow is left out here rather than estimated.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00153430; 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 April, May, September and October. Of those, September has the fewest days with rain (7).
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 USC00153430.
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 24 in half of years and before October 11 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 241 year in 10 before October 11; 9 in 10 before November 6
NOAA puts the median frost-free season at 192 days, and the season without a hard freeze (28°F) at 215 days.
A hard freeze (28°F) comes after April 1 in half of springs and before November 4 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Greensburg in zone 7a in ZIP code 42743, 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 7a: the coldest night of a typical year reaches 2°F (20 complete years).
Frost dates for every NOAA station in Kentucky · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00153430; 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, 41 days a year reach 90°F (1 of them 100°F or more), 103 nights fall to 32°F or colder and 112 days bring measurable precipitation.
- Days at 90°F or more
- 41a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 103a normal year
- Days that stay below freezing
- 11high of 32°F or less
- Days with 0.01 inch of precipitation
- 112a normal year
The highest temperature in this station's record (since 1896) is 114°F, on July 28, 1930; the lowest is −25°F, on January 25, 1963.
The wettest calendar year on that record is 1935, with 68.02 in; the snowiest season is 1959–60, with 43.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00153430; records: ACIS (NOAA Regional Climate Centers), station USC00153430. Records use complete months only; a month missing more than three days is left out.
How sunny is Greensburg?
Over a year 74% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Greensburg, 4.2 kWh per square metre a day. August is the sunniest month (81%) and December the cloudiest (62%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 63% | 2.0 |
| February | 62% | 2.7 |
| March | 66% | 3.8 |
| April | 73% | 5.1 |
| May | 74% | 5.7 |
| June | 80% | 6.3 |
| July | 79% | 6.0 |
| August | 81% | 5.6 |
| September | 79% | 4.7 |
| October | 75% | 3.5 |
| November | 72% | 2.5 |
| December | 62% | 1.8 |
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 4,281 heating degree days, 20% fewer than the median U.S. place (5,373), and 1,354 cooling degree days, 49% more than the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 4,184 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 927 | 0 |
| February | 739 | 0 |
| March | 578 | 4 |
| April | 284 | 23 |
| May | 88 | 110 |
| June | 7 | 277 |
| July | 0 | 389 |
| August | 1 | 353 |
| September | 33 | 171 |
| October | 249 | 26 |
| November | 557 | 1 |
| December | 817 | 0 |
| Year (annual) | 4,281 | 1,354 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00153430. 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 86 complete years from 1894 to 2015, the station's annual mean temperature rose at a fitted -0.5°F per century (−0.03°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 45 of the other 67 places with their own NOAA record in Kentucky, and wetter than 37. Across the 7,247 U.S. stations with normals, its annual mean of 56.9°F is warmer than 66%.
In the Köppen classification computed from these normals, Greensburg is Cfa: temperate, 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?
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.
- Campbellsville, KY11,820 people · 10 mi NE
- Columbia, KY4,685 people · 15 mi SE
- Summersville, KY360 people · 5 mi N
- Hardyville, KY104 people · 16 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 45°F and a normal low of 26°F. The warmest is July (88°F by day, 67°F at night).
What is the rainiest month in Greensburg?
May, with 5.05 in of precipitation in a normal year; the driest is August with 3.22 in.
What plant hardiness zone is Greensburg in?
The USDA's 2023 map puts Greensburg in zone 7a in ZIP code 42743, the nearest ZIP area. By the same method at Greensburg's NOAA station, the coldest night of a typical year reaches 2°F (20 years, 1991-2020): zone 7a.
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
- Kentucky climateThe statewide normals and every place in the state
- Knob Lick (4 mi S), KY19 miles from this station, 56.9°F a year
- Hodgenville, KY23 miles from this station, 56.7°F a year
- Bradfordsville, KY25 miles from this station, 55.6°F a year
- Summer Shade, KY28 miles from this station, 56.9°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made