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Nortonville weather by month

What a typical year looks like in Nortonville, Kentucky: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at MADISONVILLE, 19 km from Nortonville; records cover 1948–2026.

Today’s Nortonville forecast

The year at a glance

January: typical high 44.8°F, low 28.3°F, precipitation 3.77 in. February: typical high 49.9°F, low 31.6°F, precipitation 4.01 in. March: typical high 60°F, low 39.4°F, precipitation 5.28 in. April: typical high 71.5°F, low 49.4°F, precipitation 5.16 in. May: typical high 79.1°F, low 59°F, precipitation 5.12 in. June: typical high 86.3°F, low 66.7°F, precipitation 4.93 in. July: typical high 89.3°F, low 69.9°F, precipitation 5.02 in. August: typical high 88.7°F, low 68.3°F, precipitation 2.68 in. September: typical high 83.1°F, low 61.3°F, precipitation 3.51 in. October: typical high 71.9°F, low 50.1°F, precipitation 4.06 in. November: typical high 58.4°F, low 39.9°F, precipitation 4.13 in. December: typical high 48°F, low 32.2°F, precipitation 4.54 in.−30°−34°−10°−23°10°−12°30°−1°50°10°70°21°90°32°110°43°45°7°28°−2°Jan50°10°32°0°Feb60°16°39°4°Mar72°22°49°10°Apr79°26°59°15°May86°30°67°19°Jun89°32°70°21°Jul89°32°68°20°Aug83°28°61°16°Sep72°22°50°10°Oct58°15°40°4°Nov48°9°32°0°DecPrecipitation
Bars: typical low to high (official normals, 1991–2020) Record high Record low
Precipitation a year
52.2 in1326 mm
Snow a year
Rare
Last spring freeze
Apr 8
First fall freeze
Oct 26
Heating degree days
3,748
Cooling degree days
1,763

Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 9°−13° (heating, 99%) and 97°36° (cooling, 1%).

Month by month

Nortonville in January

Highs average 45°7° and lows 28°−2°, with 3.8 in96 mm of precipitation in a typical January.

Record high
77°25° (1950)
Record low
−20°−29° (1994)
Heating degree days
882
Cooling degree days
0

Nortonville in February

Highs average 50°10° and lows 32°0°, with 4 in102 mm of precipitation in a typical February.

Record high
80°27° (2017)
Record low
−23°−31° (1951)
Heating degree days
680
Cooling degree days
1

Nortonville in March

Highs average 60°16° and lows 39°4°, with 5.3 in134 mm of precipitation in a typical March.

Record high
88°31° (2026)
Record low
−5°−21° (1960)
Heating degree days
484
Cooling degree days
10

Nortonville in April

Highs average 72°22° and lows 49°10°, with 5.2 in131 mm of precipitation in a typical April.

Record high
91°33° (1989)
Record low
22°−6° (1992)
Heating degree days
192
Cooling degree days
56

Nortonville in May

Highs average 79°26° and lows 59°15°, with 5.1 in130 mm of precipitation in a typical May.

Record high
95°35° (1987)
Record low
29°−2° (1963)
Heating degree days
48
Cooling degree days
174

Nortonville in June

Highs average 86°30° and lows 67°19°, with 4.9 in125 mm of precipitation in a typical June.

Record high
105°41° (1952)
Record low
41°5° (1956)
Heating degree days
2
Cooling degree days
347

Nortonville in July

Highs average 89°32° and lows 70°21°, with 5 in128 mm of precipitation in a typical July.

Record high
105°41° (1952)
Record low
47°8° (1962)
Heating degree days
0
Cooling degree days
452

Nortonville in August

Highs average 89°32° and lows 68°20°, with 2.7 in68 mm of precipitation in a typical August.

Record high
105°41° (2007)
Record low
45°7° (1964)
Heating degree days
0
Cooling degree days
419

Nortonville in September

Highs average 83°28° and lows 61°16°, with 3.5 in89 mm of precipitation in a typical September.

Record high
105°41° (1954)
Record low
33°1° (1949)
Heating degree days
22
Cooling degree days
238

Nortonville in OctoberThis month

Highs average 72°22° and lows 50°10°, with 4.1 in103 mm of precipitation in a typical October.

Record high
96°36° (2019)
Record low
20°−7° (1952)
Heating degree days
184
Cooling degree days
60

Nortonville in November

Highs average 58°15° and lows 40°4°, with 4.1 in105 mm of precipitation in a typical November.

Record high
85°29° (1987)
Record low
−2°−19° (1950)
Heating degree days
482
Cooling degree days
6

Nortonville in December

Highs average 48°9° and lows 32°0°, with 4.5 in115 mm of precipitation in a typical December.

Record high
79°26° (1982)
Record low
−14°−26° (1989)
Heating degree days
772
Cooling degree days
0