Nolin River Lake, Kentucky climate: Climate normals at a NOAA weather station
Nolin River Lake's normal year runs from 24°F January nights to 91°F July afternoons, with 53.9 inches of precipitation and 5 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 13.9°C, January lows of −4°C, July highs of 33°C, 1,368 mm of precipitation a year.
- NOAA stationNolin River Lake
- Station IDUSC00155834
- Location37.28°N 86.25°W
- Elevation623 ft (190 m)
On October 23, the normal high in Nolin River Lake is 70°F and the normal low 42°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 Nolin River Lake.
- Jan 46° 24°
- Feb 51° 26°
- Mar 60° 33°
- Apr 71° 42°
- May 79° 52°
- Jun 88° 61°
- Jul 91° 64°
- Aug 91° 63°
- Sep 85° 56°
- Oct 73° 44°
- Nov 60° 34°
- Dec 50° 28°
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 Nolin River Lake each month?
July is the warmest month, with normal highs of 91°F; January the coldest, with normal lows of 24°F. The most precipitation falls in May (5.61 in), the least in August (3.50 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 46°F | 24°F | 35.0°F | 4.07 | 1.6 | 11 | <1 | 24 | 9 h 50 min |
| February | 51°F | 26°F | 38.2°F | 4.34 | 2.2 | 10 | <1 | 21 | 10 h 50 min |
| March | 60°F | 33°F | 46.3°F | 4.95 | 0.4 | 12 | <1 | 16 | 11 h 50 min |
| April | 71°F | 42°F | 56.4°F | 5.14 | 0.0 | 11 | <1 | 6 | 13 h 10 min |
| May | 79°F | 52°F | 65.8°F | 5.61 | 0.0 | 11 | 2 | 1 | 14 h 10 min |
| June | 88°F | 61°F | 74.0°F | 4.88 | 0.0 | 11 | 11 | <1 | 14 h 40 min |
| July | 91°F | 64°F | 77.7°F | 4.58 | 0.0 | 9 | 19 | <1 | 14 h 30 min |
| August | 91°F | 63°F | 76.6°F | 3.50 | 0.0 | 8 | 18 | <1 | 13 h 40 min |
| September | 85°F | 56°F | 70.0°F | 3.85 | 0.0 | 8 | 8 | <1 | 12 h 30 min |
| October | 73°F | 44°F | 58.6°F | 3.91 | 0.0 | 8 | 1 | 4 | 11 h 20 min |
| November | 60°F | 34°F | 47.2°F | 3.97 | 0.0 | 9 | <1 | 14 | 10 h 10 min |
| December | 50°F | 28°F | 38.8°F | 5.06 | 0.5 | 11 | <1 | 22 | 9 h 40 min |
| Year (annual) | 70°F | 44°F | 57.0°F | 53.86 | 4.7 | 119 | 58 | 108 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 8°C | −4°C | 1.7°C | 103 mm | 4 cm |
| February | 10°C | −3°C | 3.4°C | 110 mm | 6 cm |
| March | 15°C | 1°C | 7.9°C | 126 mm | 1 cm |
| April | 22°C | 5°C | 13.6°C | 131 mm | 0 cm |
| May | 26°C | 11°C | 18.8°C | 142 mm | 0 cm |
| June | 31°C | 16°C | 23.3°C | 124 mm | 0 cm |
| July | 33°C | 18°C | 25.4°C | 116 mm | 0 cm |
| August | 33°C | 17°C | 24.8°C | 89 mm | 0 cm |
| September | 29°C | 13°C | 21.1°C | 98 mm | 0 cm |
| October | 23°C | 7°C | 14.8°C | 99 mm | 0 cm |
| November | 16°C | 1°C | 8.4°C | 101 mm | 0 cm |
| December | 10°C | −2°C | 3.8°C | 129 mm | 1 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00155834; 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 Nolin River Lake?
Normal highs sit between 65°F and 85°F in April, May, 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 USC00155834.
When is the last frost at Nolin River Lake?
In Nolin River Lake, the last spring frost (32°F) comes after April 22 in half of years and after May 11 in one year in ten; the first autumn frost comes before October 22 in half of years and before October 9 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 221 year in 10 after May 11; 9 in 10 after April 5
- First autumn frost, half of years before
- October 221 year in 10 before October 9; 9 in 10 before November 3
NOAA puts the median frost-free season at 182 days, and the season without a hard freeze (28°F) at 205 days.
A hard freeze (28°F) comes after April 8 in half of springs and before November 1 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Nolin River Lake in zone 7a in ZIP code 42207, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 7a: the coldest night of a typical year reaches 1°F (27 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 USC00155834; 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 at Nolin River Lake?
In a normal year in Nolin River Lake, 58 days a year reach 90°F (3 of them 100°F or more), 108 nights fall to 32°F or colder and 119 days bring measurable precipitation.
- Days at 90°F or more
- 58a normal year
- Days at 100°F or more
- 3a normal year
- Nights at 32°F or colder
- 108a normal year
- Days that stay below freezing
- 12high of 32°F or less
- Days with 0.01 inch of precipitation
- 119a normal year
- Days with 1 inch of snow or more
- 1a normal year
The highest temperature in this station's record (since 1964) is 111°F, on June 30, 2012; the lowest is −20°F, on January 18, 1982.
The wettest calendar year on that record is 1979, with 72.32 in; the snowiest season is 2009–10, with 14.6 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00155834; records: ACIS (NOAA Regional Climate Centers), station USC00155834. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Nolin River Lake?
Over a year 74% of the sunlight that would reach the ground under clear skies gets through the clouds at Nolin River Lake, 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 Nolin River Lake record?
A normal year at Nolin River Lake brings 4,278 heating degree days, 20% fewer than the median U.S. place (5,373), and 1,412 cooling degree days, 56% 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 4,260 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 930 | 0 |
| February | 751 | 0 |
| March | 584 | 6 |
| April | 286 | 28 |
| May | 93 | 116 |
| June | 9 | 280 |
| July | 0 | 392 |
| August | 1 | 361 |
| September | 36 | 187 |
| October | 238 | 38 |
| November | 537 | 3 |
| December | 814 | 0 |
| Year (annual) | 4,278 | 1,412 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00155834. 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 Nolin River Lake been warmer than normal?
2024 averaged 59.6°F, 2.6°F above the 1991-2020 normal of 57.0°F. 4 of the 4 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 57.8°F | +0.8°F | 63.39 | – |
| 2022 | 57.3°F | +0.3°F | 51.48 | – |
| 2023 | 59.2°F | +2.2°F | 52.50 | – |
| 2024 | 59.6°F | +2.6°F | 64.41 | – |
Over 49 complete years from 1967 to 2024, the station's annual mean temperature rose at a fitted 3.4°F per century (+0.19°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00155834; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Nolin River Lake's climate compare?
Nolin River Lake is warmer than 50 of the 68 places with their own NOAA record in Kentucky, and wetter than 53. Across the 7,247 U.S. stations with normals, its annual mean of 57.0°F is warmer than 66%.
In the Köppen classification computed from these normals, Nolin River Lake 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 Nolin River Lake share this climate record?
Brownsville has no NOAA station with 1991-2020 normals of its 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.
- Brownsville, KY894 people · 6 mi S
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 Nolin River Lake's climate
What is the coldest month at Nolin River Lake?
January, with a normal high of 46°F and a normal low of 24°F. The warmest is July (91°F by day, 64°F at night).
Does it snow at Nolin River Lake?
Yes: 5 inches in a normal year, falling on 5 days with 0.1 inch or more, the most in February (2.2 inches).
What is the rainiest month at Nolin River Lake?
May, with 5.61 in of precipitation in a normal year; the driest is August with 3.50 in.
What plant hardiness zone is Nolin River Lake in?
The USDA's 2023 map puts Nolin River Lake in zone 7a in ZIP code 42207, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 1°F (27 years, 1991-2020): zone 7a.
How late can frost come at Nolin River Lake?
In half of years the last 32°F night comes after April 22; in one year in ten it comes after May 11. Waiting until May 11 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Kentucky climateThe statewide normals and every place in the state
- Mammoth Cave, KY12 miles from this station, 60.2°F a year
- Leitchfield, KY16 miles from this station, 53.8°F a year
- Millerstown (4 mi E), KY17 miles from this station, 54.8°F a year
- Bowling Green, KY24 miles from this station, 59.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made