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Brownsville weather by month

What a typical year looks like in Brownsville, Kentucky: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Mammoth Cave, 13 km from Brownsville; records cover 1934–2026.

Today’s Brownsville forecast

The year at a glance

January: typical high 47.9°F, low 29.3°F, precipitation 3.73 in. February: typical high 53.2°F, low 32.2°F, precipitation 4.47 in. March: typical high 62.3°F, low 39.5°F, precipitation 5.01 in. April: typical high 73.4°F, low 48°F, precipitation 4.92 in. May: typical high 81.2°F, low 56.8°F, precipitation 5.16 in. June: typical high 88°F, low 64.4°F, precipitation 4.84 in. July: typical high 91°F, low 68.3°F, precipitation 4.93 in. August: typical high 90.2°F, low 66.7°F, precipitation 3.82 in. September: typical high 85°F, low 60°F, precipitation 3.95 in. October: typical high 74°F, low 49.1°F, precipitation 3.79 in. November: typical high 61.2°F, low 39.7°F, precipitation 4.09 in. December: typical high 51°F, low 33°F, precipitation 4.78 in.−30°−34°−10°−23°10°−12°30°−1°50°10°70°21°90°32°110°43°48°9°29°−1°Jan53°12°32°0°Feb62°17°40°4°Mar73°23°48°9°Apr81°27°57°14°May88°31°64°18°Jun91°33°68°20°Jul90°32°67°19°Aug85°29°60°16°Sep74°23°49°10°Oct61°16°40°4°Nov51°11°33°1°DecPrecipitation
Bars: typical low to high (official normals, 1991–2020) Record high Record low
Precipitation a year
53.5 in1359 mm
Snow a year
4 in10 cm
Last spring freeze
Apr 9
First fall freeze
Oct 25
Heating degree days
3,482
Cooling degree days
1,773

Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 8°−13° (heating, 99%) and 97°36° (cooling, 1%).

Month by month

Brownsville in January

Highs average 48°9° and lows 29°−1°, with 3.7 in95 mm of precipitation and 0.7 in1.8 cm of snow in a typical January.

Record high
80°27° (1943)
Record low
−20°−29° (1963)
Heating degree days
818
Cooling degree days
0

Brownsville in February

Highs average 53°12° and lows 32°0°, with 4.5 in114 mm of precipitation and 1.4 in3.6 cm of snow in a typical February.

Record high
82°28° (1962)
Record low
−21°−29° (1951)
Heating degree days
626
Cooling degree days
1

Brownsville in March

Highs average 62°17° and lows 40°4°, with 5 in127 mm of precipitation and 0.6 in1.5 cm of snow in a typical March.

Record high
87°31° (2026)
Record low
−6°−21° (1960)
Heating degree days
449
Cooling degree days
12

Brownsville in April

Highs average 73°23° and lows 48°9°, with 4.9 in125 mm of precipitation in a typical April.

Record high
91°33° (1942)
Record low
18°−8° (1950)
Heating degree days
184
Cooling degree days
55

Brownsville in May

Highs average 81°27° and lows 57°14°, with 5.2 in131 mm of precipitation in a typical May.

Record high
96°36° (1991)
Record low
27°−3° (1963)
Heating degree days
51
Cooling degree days
175

Brownsville in June

Highs average 88°31° and lows 64°18°, with 4.8 in123 mm of precipitation in a typical June.

Record high
108°42° (2012)
Record low
32°0° (1950)
Heating degree days
3
Cooling degree days
339

Brownsville in July

Highs average 91°33° and lows 68°20°, with 4.9 in125 mm of precipitation in a typical July.

Record high
108°42° (1952)
Record low
40°4° (1950)
Heating degree days
0
Cooling degree days
454

Brownsville in August

Highs average 90°32° and lows 67°19°, with 3.8 in97 mm of precipitation in a typical August.

Record high
105°41° (1936)
Record low
37°3° (1950)
Heating degree days
0
Cooling degree days
417

Brownsville in September

Highs average 85°29° and lows 60°16°, with 4 in100 mm of precipitation in a typical September.

Record high
106°41° (1954)
Record low
29°−2° (1942)
Heating degree days
20
Cooling degree days
245

Brownsville in OctoberThis month

Highs average 74°23° and lows 49°10°, with 3.8 in96 mm of precipitation in a typical October.

Record high
99°37° (2019)
Record low
18°−8° (1976)
Heating degree days
172
Cooling degree days
65

Brownsville in November

Highs average 61°16° and lows 40°4°, with 4.1 in104 mm of precipitation in a typical November.

Record high
93°34° (2000)
Record low
−8°−22° (1950)
Heating degree days
446
Cooling degree days
10

Brownsville in December

Highs average 51°11° and lows 33°1°, with 4.8 in121 mm of precipitation and 1.3 in3.3 cm of snow in a typical December.

Record high
80°27° (1951)
Record low
−18°−28° (1989)
Heating degree days
713
Cooling degree days
0