Frost Dates for 33547 — Lithia, Florida

Half of winters at Fort Green 12 WSW, FL see their last 32°F night by February 6; only one in ten is past it by January 6, and one in ten still has one after March 14. Planting tender crops after February 23 leaves a 30% risk of a frost on them, after March 2 20%, and after March 14 10%. The 36 days between the even-odds date and the one-in-ten date is wider than at 99% of the 101 Florida stations behind this site's ZIP pages, so a fixed calendar date is a gamble here.

In fall the first 32°F night comes by January 3 in half of years, as early as December 6 one year in ten, and holds off past February 2 one year in ten. A hard freeze of 28°F follows 8 days later, around January 11; in spring the one-in-ten date for 28°F is February 24, 18 days before the 32°F one. On average 5 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 24 days longer, to about March 2, and return around December 17. A 24°F night is unusual: 22% of winters had one.

August is the warmest month at Fort Green 12 WSW, FL, averaging 91°F by day and 72°F at night; January is the coldest at 73°F and 47°F. From April to November the chance of a 32°F night stays under 10% each month. In spring, February still brings one in 43% of years and March still brings one in 20% of years.

Warmth for growing adds up to 8,042 growing degree days a year (base 50°F), fewer than at 56% of the 158 Florida stations. 44% of them (3,524) have built up by the end of June, and August adds the most, 978.

The nearest other station, Plant City, FL, 16 miles north of Lithia, has a last frost 7 days earlier (January 30), a first frost 3 days later (January 6), a season 10 days longer.

Measurable snow is rare here: only 0 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Fort Green 12 WSW, FL, 14.9 miles away, so there is no typical first-snow date to plan around.

ZIP 33547 is 15 miles from Fort Green 12 WSW, FL, which stands at 112 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 33547 in zone 9b, the band where the coldest night of the year averaged 25 to 30°F (-3.9 to -1.1°C) over 1991–2020; a zone describes winter lows, not frost dates.