Frost dates for Mt Pocono Mountains Airport, Pennsylvania
Half of years have their last spring frost by May 6, but 1 year in 10 still frosts after May 23.
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 23
- 1 year in 5
- May 18
- 3 years in 10
- May 14
- 2 years in 5
- May 10
- Half of years (the median)
- May 6
First fall freeze
How often the first freeze comes on or before each date.
- 1 year in 10
- September 27
- 1 year in 5
- October 1
- 3 years in 10
- October 3
- 2 years in 5
- October 6
- Half of years (the median)
- October 8
- Growing season
- about 154 days
- Hardiness zones nearby
- 6a, 6b
- Summer days
- a usual high of about 24 °C76 °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 ~-1 °C30 °F · low ~-9 °C15 °F · rain ~76 mm3 in
- February
- high ~1 °C33 °F · low ~-8 °C17 °F · rain ~62 mm2.4 in
- March
- high ~5 °C41 °F · low ~-4 °C24 °F · rain ~97 mm3.8 in
- April
- high ~13 °C55 °F · low ~1 °C34 °F · rain ~108 mm4.2 in
- May
- high ~18 °C65 °F · low ~7 °C45 °F · rain ~103 mm4.1 in
- June
- high ~23 °C73 °F · low ~12 °C53 °F · rain ~119 mm4.7 in
- July
- high ~25 °C78 °F · low ~14 °C58 °F · rain ~120 mm4.7 in
- August
- high ~24 °C76 °F · low ~14 °C56 °F · rain ~118 mm4.6 in
- September
- high ~20 °C69 °F · low ~10 °C50 °F · rain ~142 mm5.6 in
- October
- high ~14 °C57 °F · low ~4 °C39 °F · rain ~131 mm5.1 in
- November
- high ~8 °C46 °F · low ~-1 °C30 °F · rain ~104 mm4.1 in
- December
- high ~2 °C35 °F · low ~-6 °C21 °F · rain ~96 mm3.8 in
Where these numbers come from
NOAA NCEI 1991–2020 Climate Normals, the Mt Pocono Mountains Airport station (listed by NOAA as Mt Pocono Mountains Ap, USW00054789), at 41.14, -75.38. 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
18301, 18302, 18321, 18322, 18323, 18325, 18326, 18327, 18330, 18332, 18334, 18335…
+18 moreShow fewer
18342, 18344, 18346, 18349, 18350, 18352, 18354, 18355, 18356, 18357, 18360, 18370, 18371, 18372, 18424, 18445, 18460, 18466.
Nearby stations
The nearest stations and how their last-frost dates compare. Together they show how frost varies across your area.
- Wilkes-Barre International Airport, PA, last frost by April 23
- Lehighton 1 SSW, PA, last frost by April 21
- Phillipsburg-Easton Brg, NJ, last frost by April 18
- Sussex 3 WNW, NJ, last frost by April 30
- Pleasant Mt 1 W, PA, last frost by May 14
- Rodale Rsch Center, PA, last frost by April 26
Other stations in Pennsylvania.
- Mahanoy City 2 N, PA, last frost by April 30
- Willow Grove Naval Air Station, PA, last frost by April 11
- Selinsgrove 2 S, PA, last frost by April 25
- Phila Franklin Inst, PA, last frost by March 30
- Lancaster Airport, PA, last frost by April 18
- Philadelphia International Airport, PA, last frost by April 2
- Middletown Harrisburg International Airport, PA, last frost by April 9
- Carlisle Wtp, PA, last frost by April 23
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