Frost dates for Jackson Hawkins Field, Mississippi
Half of years have their last spring frost by March 6, but 1 year in 10 still frosts after March 24.
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
- March 24
- 1 year in 5
- March 17
- 3 years in 10
- March 13
- 2 years in 5
- March 10
- Half of years (the median)
- March 6
First fall freeze
How often the first freeze comes on or before each date.
- 1 year in 10
- November 4
- 1 year in 5
- November 8
- 3 years in 10
- November 12
- 2 years in 5
- November 15
- Half of years (the median)
- November 19
- Growing season
- about 258 days
- Hardiness zone nearby
- 8b
- Summer days
- a usual high of about 33 °C92 °F
- Lettuce and spinach run to seed
- April 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.
- Hot-weather watering
- July to August: days run above 32 °C90 °F and nights stay above 21 °C70 °F, so expect to water daily or every other day (how we know)
Month by month
- January
- high ~14 °C57 °F · low ~3 °C38 °F · rain ~129 mm5.1 in
- February
- high ~17 °C62 °F · low ~5 °C41 °F · rain ~111 mm4.4 in
- March
- high ~21 °C70 °F · low ~9 °C48 °F · rain ~123 mm4.8 in
- April
- high ~25 °C77 °F · low ~13 °C55 °F · rain ~134 mm5.3 in
- May
- high ~29 °C84 °F · low ~17 °C63 °F · rain ~100 mm3.9 in
- June
- high ~32 °C90 °F · low ~21 °C71 °F · rain ~100 mm3.9 in
- July
- high ~33 °C92 °F · low ~23 °C73 °F · rain ~118 mm4.6 in
- August
- high ~34 °C92 °F · low ~23 °C73 °F · rain ~87 mm3.4 in
- September
- high ~31 °C88 °F · low ~20 °C68 °F · rain ~85 mm3.3 in
- October
- high ~26 °C78 °F · low ~13 °C56 °F · rain ~91 mm3.6 in
- November
- high ~20 °C67 °F · low ~7 °C44 °F · rain ~107 mm4.2 in
- December
- high ~15 °C60 °F · low ~4 °C40 °F · rain ~120 mm4.7 in
Where these numbers come from
NOAA NCEI 1991–2020 Climate Normals, the Jackson Hawkins Field station (listed by NOAA as Jackson Hawkins Fld, USW00013927), at 32.34, -90.22. 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
39056, 39071, 39110, 39157, 39174, 39201, 39202, 39203, 39204, 39206, 39209, 39212…
+5 moreShow fewer
39213, 39216, 39217, 39269, 39272.
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