Millerstown (4 mi E), Kentucky climate: Climate normals at a NOAA weather station
Millerstown (4 mi E)'s normal year runs from 23°F January nights to 87°F July afternoons, with 52.7 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 12.7°C, January lows of −5°C, July highs of 30°C, 1,338 mm of precipitation a year.
- NOAA stationMillerstown (4 mi E)
- Station IDUSC00155444
- Location37.43°N 86.01°W
- Elevation600 ft (183 m)
On October 23, the normal high in Millerstown (4 mi E) is 67°F and the normal low 38°F, and the chance of measurable rain or snow is 29%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Millerstown (4 mi E).
- Jan 43° 23°
- Feb 47° 24°
- Mar 56° 32°
- Apr 68° 41°
- May 76° 52°
- Jun 83° 61°
- Jul 87° 65°
- Aug 86° 62°
- Sep 80° 56°
- Oct 70° 42°
- Nov 57° 32°
- Dec 47° 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 at Millerstown (4 mi E) each month?
July is the warmest month, with normal highs of 87°F; January the coldest, with normal lows of 23°F. The most precipitation falls in May (5.66 in), the least in August (3.30 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 43°F | 23°F | 32.7°F | 4.05 | 10 | <1 | 23 | 9 h 50 min |
| February | 47°F | 24°F | 35.7°F | 4.52 | 11 | <1 | 21 | 10 h 50 min |
| March | 56°F | 32°F | 44.3°F | 5.15 | 12 | <1 | 15 | 11 h 50 min |
| April | 68°F | 41°F | 54.4°F | 4.93 | 11 | <1 | 7 | 13 h 10 min |
| May | 76°F | 52°F | 63.8°F | 5.66 | 12 | 1 | <1 | 14 h 10 min |
| June | 83°F | 61°F | 71.7°F | 4.85 | 10 | 5 | <1 | 14 h 40 min |
| July | 87°F | 65°F | 75.6°F | 4.32 | 10 | 11 | <1 | 14 h 30 min |
| August | 86°F | 62°F | 74.2°F | 3.30 | 7 | 6 | <1 | 13 h 40 min |
| September | 80°F | 56°F | 67.9°F | 3.57 | 8 | 3 | <1 | 12 h 30 min |
| October | 70°F | 42°F | 55.7°F | 3.57 | 9 | <1 | 5 | 11 h 20 min |
| November | 57°F | 32°F | 44.3°F | 3.69 | 9 | <1 | 19 | 10 h 10 min |
| December | 47°F | 27°F | 37.0°F | 5.06 | 11 | <1 | 21 | 9 h 40 min |
| Year (annual) | 67°F | 43°F | 54.8°F | 52.67 | 119 | 26 | 113 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 6°C | −5°C | 0.4°C | 103 mm |
| February | 8°C | −4°C | 2.1°C | 115 mm |
| March | 14°C | 0°C | 6.8°C | 131 mm |
| April | 20°C | 5°C | 12.4°C | 125 mm |
| May | 24°C | 11°C | 17.7°C | 144 mm |
| June | 28°C | 16°C | 22.1°C | 123 mm |
| July | 30°C | 18°C | 24.2°C | 110 mm |
| August | 30°C | 17°C | 23.4°C | 84 mm |
| September | 27°C | 13°C | 19.9°C | 91 mm |
| October | 21°C | 5°C | 13.2°C | 91 mm |
| November | 14°C | 0°C | 6.8°C | 94 mm |
| December | 8°C | −3°C | 2.8°C | 129 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Leitchfield (16 miles away), gets 9 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00155444; 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.
Which months are mildest at Millerstown (4 mi E)?
Normal highs sit between 65°F and 85°F in April, May, June, 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 USC00155444.
When is the last frost at Millerstown (4 mi E)?
In Millerstown (4 mi E), the last spring frost (32°F) comes after April 21 in half of years and after May 6 in one year in ten; the first autumn frost comes before October 18 in half of years and before October 6 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 211 year in 10 after May 6; 9 in 10 after April 8
- First autumn frost, half of years before
- October 181 year in 10 before October 6; 9 in 10 before October 28
NOAA puts the median frost-free season at 178 days, and the season without a hard freeze (28°F) at 198 days.
A hard freeze (28°F) comes after April 10 in half of springs and before October 26 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Millerstown (4 mi E) in zone 7a in ZIP code 42784, the nearest ZIP area.
Frost dates for every NOAA station in Kentucky · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00155444; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. 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 at Millerstown (4 mi E)?
In a normal year in Millerstown (4 mi E), 26 days a year reach 90°F (1 of them 100°F or more), 113 nights fall to 32°F or colder and 119 days bring measurable precipitation.
- Days at 90°F or more
- 26a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 113a normal year
- Days that stay below freezing
- 14high of 32°F or less
- Days with 0.01 inch of precipitation
- 119a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00155444.
How sunny is it at Millerstown (4 mi E)?
Over a year 74% of the sunlight that would reach the ground under clear skies gets through the clouds at Millerstown (4 mi E), 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 | 81% | 6.4 |
| July | 81% | 6.1 |
| 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 many heating and cooling degree days does Millerstown (4 mi E) record?
A normal year at Millerstown (4 mi E) brings 4,792 heating degree days, 11% fewer than the median U.S. place (5,373), and 1,088 cooling degree days, 20% 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 3,718 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,003 | 0 |
| February | 821 | 1 |
| March | 644 | 0 |
| April | 331 | 13 |
| May | 122 | 84 |
| June | 12 | 213 |
| July | 1 | 329 |
| August | 3 | 286 |
| September | 53 | 140 |
| October | 312 | 22 |
| November | 622 | 1 |
| December | 870 | 0 |
| Year (annual) | 4,792 | 1,088 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00155444. 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.
Have recent years at Millerstown (4 mi E) been warmer than normal?
2025 averaged 54.8°F, equal to the 1991-2020 normal of 54.8°F. 2 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 54.4°F | −0.4°F | 61.69 |
| 2022 | 53.5°F | −1.3°F | 59.00 |
| 2023 | 55.3°F | +0.5°F | 44.57 |
| 2024 | 56.1°F | +1.3°F | 60.77 |
| 2025 | 54.8°F | at normal | 72.45 |
Source: observed years: ACIS, station USC00155444. A year counts only with all twelve months complete.
How does Millerstown (4 mi E)'s climate compare?
Millerstown (4 mi E) is warmer than 13 of the 68 places with their own NOAA record in Kentucky, and wetter than 47. Across the 7,247 U.S. stations with normals, its annual mean of 54.8°F is warmer than 59%.
In the Köppen classification computed from these normals, Millerstown (4 mi E) 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 Millerstown (4 mi E) 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.
- Munfordville, KY1,721 people · 12 mi SE
- Upton, KY703 people · 6 mi E
- Sonora, KY566 people · 9 mi NE
- Bonnieville, KY276 people · 7 mi SE
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 Millerstown (4 mi E)'s climate
What is the coldest month at Millerstown (4 mi E)?
January, with a normal high of 43°F and a normal low of 23°F. The warmest is July (87°F by day, 65°F at night).
Does it snow at Millerstown (4 mi E)?
Yes. NOAA publishes no 1991-2020 snowfall normal for the station; the nearest record that keeps one, Leitchfield (16 miles away), records 9 inches of snow in a normal year.
What is the rainiest month at Millerstown (4 mi E)?
May, with 5.66 in of precipitation in a normal year; the driest is August with 3.30 in.
What plant hardiness zone is Millerstown (4 mi E) in?
The USDA's 2023 map puts Millerstown (4 mi E) in zone 7a in ZIP code 42784, the nearest ZIP area.
How late can frost come at Millerstown (4 mi E)?
In half of years the last 32°F night comes after April 21; in one year in ten it comes after May 6. Waiting until May 6 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Kentucky climateThe statewide normals and every place in the state
- Leitchfield, KY16 miles from this station, 53.8°F a year
- Hodgenville, KY17 miles from this station, 56.7°F a year
- Nolin River Lake, KY17 miles from this station, 57.0°F a year
- Elizabethtown, KY19 miles from this station, 55.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made