Frost dates for Peru, Vermont
Half of years have their last spring frost by May 16, but 1 year in 10 still frosts after May 31.
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 31
- 1 year in 5
- May 26
- 3 years in 10
- May 22
- 2 years in 5
- May 19
- Half of years (the median)
- May 16
First fall freeze
How often the first freeze comes on or before each date.
- 1 year in 10
- September 20
- 1 year in 5
- September 25
- 3 years in 10
- September 28
- 2 years in 5
- October 1
- Half of years (the median)
- October 2
- Growing season
- about 140 days
- Hardiness zone nearby
- 5a
- Summer days
- a usual high of about 22 °C72 °F
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 ~-3 °C27 °F · low ~-13 °C8 °F · rain ~99 mm3.9 in
- February
- high ~-1 °C31 °F · low ~-12 °C10 °F · rain ~86 mm3.4 in
- March
- high ~3 °C38 °F · low ~-8 °C17 °F · rain ~105 mm4.1 in
- April
- high ~10 °C50 °F · low ~-1 °C30 °F · rain ~101 mm4 in
- May
- high ~18 °C64 °F · low ~6 °C42 °F · rain ~103 mm4.1 in
- June
- high ~21 °C70 °F · low ~11 °C51 °F · rain ~127 mm5 in
- July
- high ~24 °C75 °F · low ~14 °C56 °F · rain ~114 mm4.5 in
- August
- high ~23 °C73 °F · low ~13 °C55 °F · rain ~118 mm4.6 in
- September
- high ~19 °C67 °F · low ~9 °C47 °F · rain ~101 mm4 in
- October
- high ~13 °C56 °F · low ~3 °C37 °F · rain ~131 mm5.2 in
- November
- high ~6 °C43 °F · low ~-3 °C26 °F · rain ~95 mm3.7 in
- December
- high ~0 °C32 °F · low ~-9 °C16 °F · rain ~114 mm4.5 in
Where these numbers come from
NOAA NCEI 1991–2020 Climate Normals, the Peru station (listed by NOAA as Peru, USC00436335), at 43.26, -72.91. 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
05148, 05152, 05161, 05251, 05253, 05340, 05343, 05359, 05739, 05742, 05761, 05773.
Nearby stations
The nearest stations and how their last-frost dates compare. Together they show how frost varies across your area.
- Rowe 3 NE, MA, last frost by May 14
- Newport, NH, last frost by May 14
- Glens Falls Farm, NY, last frost by May 17
- Tully Lake, MA, last frost by April 25
- Albany Airport, NY, last frost by April 27
- Hopkinton Lake, NH, last frost by May 6
Other stations in Vermont.
- Plainfield, VT, last frost by May 25
- S Hero, VT, last frost by April 28
- Johnson 2 N, VT, last frost by May 9
When do I plant? · Where the dates come from
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