Frost dates for Shelby Bottoms Nature, Tennessee
Half of years have their last spring frost by April 1, but 1 year in 10 still frosts after April 16.
A frost date is really a percentile from 30 years of records at a nearby weather station: in about half of years a frost still comes after the median date. Both numbers are below, so you can choose the risk yourself.
The odds
Last spring frost
How often a frost still comes on or after each date.
- 1 year in 10
- April 16
- 1 year in 5
- April 11
- 3 years in 10
- April 7
- 2 years in 5
- April 4
- Half of years (the median)
- April 1
First fall freeze
How often the first freeze comes on or before each date.
- 1 year in 10
- October 18
- 1 year in 5
- October 22
- 3 years in 10
- October 25
- 2 years in 5
- October 28
- Half of years (the median)
- October 31
- Growing season
- about 213 days
- Hardiness zones nearby
- 7a, 7b
- Summer days
- a usual high of about 31 °C88 °F
- Lettuce and spinach run to seed
- May to September, in hot, long days (how we know)
Summer and rain
A growing garden needs about 25 mm1 in of water a week, rain and watering together. Here is what a normal month brings.
Month by month
- January
- high ~9 °C48 °F · low ~-2 °C28 °F · rain ~119 mm4.7 in
- February
- high ~11 °C52 °F · low ~0 °C31 °F · rain ~117 mm4.6 in
- March
- high ~17 °C62 °F · low ~4 °C39 °F · rain ~137 mm5.4 in
- April
- high ~22 °C72 °F · low ~9 °C47 °F · rain ~122 mm4.8 in
- May
- high ~27 °C80 °F · low ~13 °C56 °F · rain ~135 mm5.3 in
- June
- high ~30 °C87 °F · low ~18 °C64 °F · rain ~110 mm4.3 in
- July
- high ~32 °C89 °F · low ~20 °C68 °F · rain ~110 mm4.3 in
- August
- high ~31 °C89 °F · low ~19 °C67 °F · rain ~94 mm3.7 in
- September
- high ~29 °C84 °F · low ~15 °C59 °F · rain ~107 mm4.2 in
- October
- high ~23 °C73 °F · low ~8 °C47 °F · rain ~96 mm3.8 in
- November
- high ~16 °C62 °F · low ~3 °C37 °F · rain ~96 mm3.8 in
- December
- high ~11 °C51 °F · low ~0 °C32 °F · rain ~109 mm4.3 in
Where these numbers come from
NOAA NCEI 1991–2020 Climate Normals, the Shelby Bottoms Nature station (listed by NOAA as Shelby Bottoms Nature, USC00408238), at 36.17, -86.72. These are that station’s own records, unshifted. The further your garden is from it, the less exactly they describe your ground. The planner finds the nearest station to your garden and lowers its confidence with distance, so no number is presented as if it were measured in your garden.
Cold air also pools in low ground on the clear, still nights when frost happens, so a hollow can freeze while a slope a few hundred feet away does not. No table can know that about your garden. A few seasons of your own logged frosts can.
ZIP codes nearest this station
37072, 37073, 37075, 37080, 37115, 37138, 37188, 37189, 37201, 37203, 37205, 37206…
+13 moreShow fewer
37207, 37208, 37209, 37210, 37212, 37213, 37216, 37218, 37219, 37228, 37240, 37243, 37246.
Nearby stations
The nearest stations and how their last-frost dates compare. Together they show how frost varies across your area.
- Rochester Ferry, KY, last frost by April 15
Other stations in Tennessee.
- Norris, TN, last frost by April 22
- Memphis, TN, last frost by March 29
- Elizabethton, TN, last frost by April 19
When do I plant? · Where the dates come from
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