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Longboat Key weather by month

What a typical year looks like in Longboat Key, Florida: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at BRADENTON 5 ESE, 16 km from Longboat Key; records cover 1965–2026.

Today’s Longboat Key forecast

The year at a glance

January: typical high 72°F, low 52.2°F, precipitation 2.76 in. February: typical high 75°F, low 54.8°F, precipitation 1.99 in. March: typical high 78.4°F, low 58.4°F, precipitation 3.11 in. April: typical high 83°F, low 63°F, precipitation 2.53 in. May: typical high 88.2°F, low 68.5°F, precipitation 3.49 in. June: typical high 91.1°F, low 73.7°F, precipitation 9.03 in. July: typical high 92°F, low 75.2°F, precipitation 8.91 in. August: typical high 91.8°F, low 75.5°F, precipitation 10.07 in. September: typical high 90°F, low 74.2°F, precipitation 7.43 in. October: typical high 85.2°F, low 68.3°F, precipitation 2.88 in. November: typical high 78.6°F, low 60.1°F, precipitation 1.82 in. December: typical high 74°F, low 55°F, precipitation 2.26 in.10°−12°20°−7°30°−1°40°4°50°10°60°16°70°21°80°27°90°32°100°38°110°43°72°22°52°11°Jan75°24°55°13°Feb78°26°58°15°Mar83°28°63°17°Apr88°31°69°20°May91°33°74°23°Jun92°33°75°24°Jul92°33°76°24°Aug90°32°74°23°Sep85°30°68°20°Oct79°26°60°16°Nov74°23°55°13°DecPrecipitation
Bars: typical low to high (official normals, 1991–2020) Record high Record low
Precipitation a year
56.3 in1430 mm
Snow a year
Rare
Last spring freeze
Jan 17
First fall freeze
Rare
Heating degree days
438
Cooling degree days
3,773

Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 37°3° (heating, 99%) and 96°36° (cooling, 1%).

Month by month

Longboat Key in January

Highs average 72°22° and lows 52°11°, with 2.8 in70 mm of precipitation in a typical January.

Record high
91°33° (1990)
Record low
23°−5° (1981)
Heating degree days
149
Cooling degree days
59

Longboat Key in February

Highs average 75°24° and lows 55°13°, with 2 in51 mm of precipitation in a typical February.

Record high
88°31° (1997)
Record low
24°−4° (1996)
Heating degree days
87
Cooling degree days
84

Longboat Key in March

Highs average 78°26° and lows 58°15°, with 3.1 in79 mm of precipitation in a typical March.

Record high
91°33° (2020)
Record low
30°−1° (1980)
Heating degree days
43
Cooling degree days
148

Longboat Key in April

Highs average 83°28° and lows 63°17°, with 2.5 in64 mm of precipitation in a typical April.

Record high
94°34° (1994)
Record low
38°3° (1971)
Heating degree days
8
Cooling degree days
248

Longboat Key in May

Highs average 88°31° and lows 69°20°, with 3.5 in89 mm of precipitation in a typical May.

Record high
100°38° (2024)
Record low
46°8° (1971)
Heating degree days
0
Cooling degree days
414

Longboat Key in June

Highs average 91°33° and lows 74°23°, with 9 in229 mm of precipitation in a typical June.

Record high
100°38° (1998)
Record low
52°11° (1984)
Heating degree days
0
Cooling degree days
522

Longboat Key in July

Highs average 92°33° and lows 75°24°, with 8.9 in226 mm of precipitation in a typical July.

Record high
100°38° (1998)
Record low
62°17° (1984)
Heating degree days
0
Cooling degree days
577

Longboat Key in August

Highs average 92°33° and lows 76°24°, with 10.1 in256 mm of precipitation in a typical August.

Record high
101°38° (2023)
Record low
60°16° (1973)
Heating degree days
0
Cooling degree days
578

Longboat Key in September

Highs average 90°32° and lows 74°23°, with 7.4 in189 mm of precipitation in a typical September.

Record high
97°36° (1970)
Record low
58°14° (2019)
Heating degree days
0
Cooling degree days
513

Longboat Key in OctoberThis month

Highs average 85°30° and lows 68°20°, with 2.9 in73 mm of precipitation in a typical October.

Record high
95°35° (1989)
Record low
44°7° (1977)
Heating degree days
4
Cooling degree days
368

Longboat Key in November

Highs average 79°26° and lows 60°16°, with 1.8 in46 mm of precipitation in a typical November.

Record high
91°33° (2015)
Record low
29°−2° (1970)
Heating degree days
37
Cooling degree days
168

Longboat Key in December

Highs average 74°23° and lows 55°13°, with 2.3 in57 mm of precipitation in a typical December.

Record high
89°32° (1973)
Record low
20°−7° (1983)
Heating degree days
110
Cooling degree days
94