Frost dates for Turner, Maine
Half of years have their last spring frost by May 1, but 1 year in 10 still frosts after May 13.
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
- May 13
- 1 year in 5
- May 9
- 3 years in 10
- May 5
- 2 years in 5
- May 3
- Half of years (the median)
- May 1
First fall freeze
How often the first freeze comes on or before each date.
- 1 year in 10
- September 29
- 1 year in 5
- October 2
- 3 years in 10
- October 5
- 2 years in 5
- October 7
- Half of years (the median)
- October 10
- Growing season
- about 162 days
- Hardiness zone nearby
- 5b
- Summer days
- a usual high of about 25 °C77 °F
- Lettuce and spinach run to seed
- July to August, 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 ~-2 °C28 °F · low ~-12 °C10 °F · rain ~93 mm3.6 in
- February
- high ~0 °C31 °F · low ~-11 °C12 °F · rain ~76 mm3 in
- March
- high ~4 °C39 °F · low ~-6 °C21 °F · rain ~96 mm3.8 in
- April
- high ~11 °C52 °F · low ~0 °C33 °F · rain ~108 mm4.2 in
- May
- high ~18 °C65 °F · low ~6 °C43 °F · rain ~96 mm3.8 in
- June
- high ~23 °C74 °F · low ~12 °C53 °F · rain ~112 mm4.4 in
- July
- high ~26 °C79 °F · low ~15 °C59 °F · rain ~100 mm3.9 in
- August
- high ~26 °C78 °F · low ~14 °C57 °F · rain ~89 mm3.5 in
- September
- high ~21 °C71 °F · low ~9 °C49 °F · rain ~100 mm3.9 in
- October
- high ~14 °C57 °F · low ~4 °C39 °F · rain ~129 mm5.1 in
- November
- high ~7 °C45 °F · low ~-2 °C28 °F · rain ~112 mm4.4 in
- December
- high ~1 °C34 °F · low ~-8 °C18 °F · rain ~111 mm4.4 in
Where these numbers come from
NOAA NCEI 1991–2020 Climate Normals, the Turner station (listed by NOAA as Turner, USC00178817), at 44.28, -70.26. 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
04220, 04238, 04263, 04265, 04271, 04281, 04282.
Nearby stations
The nearest stations and how their last-frost dates compare. Together they show how frost varies across your area.
- Westport Island, ME, last frost by April 28
- Portland International Jetport, ME, last frost by April 26
- Hollis, ME, last frost by May 14
- E Sandwich, NH, last frost by May 6
- Epping, NH, last frost by May 7
- Acadia NP, ME, last frost by April 27
When do I plant? · Where the dates come from
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