USDA Hardiness Zone 6b
Frost Dates for 18360 — Stroudsburg, Pennsylvania
NOAA 1991–2020 normals from E Stroudsburg, PA (471 ft), 4 miles northeast.
Updated
In Stroudsburg, the last spring frost (32°F) is around May 1 in half of years and has passed by May 18 in nine years out of ten. The first fall frost comes around October 12, as early as October 1 one year in ten, leaving a typical freeze-free season of 163 days (NOAA, E Stroudsburg, PA).
- Last spring frost
- May 1
- First fall frost
- October 12
- Growing season
- 163 days
- Hardiness zone
- 6b
50% probability
50% probability
freeze-free, 50%
-5 to 0°F (-20.6 to -17.8°C) coldest night
- First snow
- November 26
- Last snow
- March 27
- Winters with snow
- 100%
- Snow per year
- 41.6"
median, 1991–2020
median, 1991–2020
24 of 24 observed
NOAA normal
Frost risk by date in Stroudsburg
Half of springs at E Stroudsburg, PA see their last 32°F night by May 1; only one in ten is past it by April 18, and one in ten still has one after May 18. Planting tender crops after May 7 leaves a 30% risk of a frost on them, after May 12 20%, and after May 18 10%. The 17 days between the even-odds date and the one-in-ten date is wider than at 50% of the 176 Pennsylvania stations behind this site's ZIP pages.
In fall the first 32°F night comes by October 12 in half of years, as early as October 1 one year in ten, and holds off past October 28 one year in ten. A hard freeze of 28°F follows 11 days later, around October 23; in spring the one-in-ten date for 28°F is May 6, 12 days before the 32°F one. The freeze-free season lasts 163 days in a typical year, shorter than at 70% of the 176 Pennsylvania stations; it reaches 183 days one year in ten and falls short of 141 one year in ten. On average 137 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 13 days longer, to about May 14, and return around October 3. Severe cold of 16°F or below comes every winter, usually between December 1 and March 11.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 28 | May 1 | May 7 | May 10 | May 14 | May 17 | May 21 | May 25 | May 29 |
| 32°F | Apr 18 | Apr 22 | Apr 26 | Apr 29 | May 1 | May 4 | May 7 | May 12 | May 18 |
| 28°F | Apr 2 | Apr 7 | Apr 12 | Apr 15 | Apr 19 | Apr 22 | Apr 26 | Apr 30 | May 6 |
| 24°F | Mar 19 | Mar 25 | Mar 29 | Mar 31 | Apr 3 | Apr 5 | Apr 8 | Apr 12 | Apr 18 |
| 20°F | Mar 5 | Mar 11 | Mar 15 | Mar 18 | Mar 22 | Mar 26 | Mar 29 | Apr 1 | Apr 5 |
| 16°F | Feb 22 | Feb 28 | Mar 4 | Mar 7 | Mar 11 | Mar 14 | Mar 17 | Mar 21 | Mar 27 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Sep 22 | Sep 26 | Sep 30 | Oct 1 | Oct 3 | Oct 5 | Oct 8 | Oct 11 | Oct 17 |
| 32°F | Oct 1 | Oct 4 | Oct 6 | Oct 9 | Oct 12 | Oct 15 | Oct 18 | Oct 22 | Oct 28 |
| 28°F | Oct 7 | Oct 12 | Oct 17 | Oct 20 | Oct 23 | Oct 27 | Oct 31 | Nov 3 | Nov 8 |
| 24°F | Oct 19 | Oct 26 | Oct 30 | Nov 1 | Nov 5 | Nov 8 | Nov 12 | Nov 16 | Nov 22 |
| 20°F | Nov 1 | Nov 6 | Nov 10 | Nov 14 | Nov 18 | Nov 21 | Nov 25 | Nov 30 | Dec 5 |
| 16°F | Nov 14 | Nov 20 | Nov 23 | Nov 28 | Dec 1 | Dec 5 | Dec 9 | Dec 14 | Dec 21 |
Freeze probabilities 1991–2020 at E Stroudsburg, PA, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.
Frost risk on any date in 18360 →Compare Stroudsburg with another place →
Weather by month in Stroudsburg
July is the warmest month at E Stroudsburg, PA, averaging 84°F by day and 61°F at night; January is the coldest at 36°F and 19°F. A freezing night is all but certain in every month from October to April (a 90% chance or more). From June to September the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 50% of years.
Warmth for growing adds up to 2,873 growing degree days a year (base 50°F), fewer than at 57% of the 176 Pennsylvania stations. 34% of them (963) have built up by the end of June, and July adds the most, 702. Precipitation totals 53.4 inches a year, most in June (5.5") and least in February (3.1"); May to September bring 46% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 36 | 19 | 3.8 | 100% | 28 | 1 |
| Feb | 39 | 21 | 3.1 | 100% | 25 | 1 |
| Mar | 48 | 28 | 4.0 | 100% | 22 | 14 |
| Apr | 62 | 37 | 4.3 | 99% | 9 | 99 |
| May | 72 | 47 | 4.4 | 50% | 1 | 312 |
| Jun | 80 | 56 | 5.5 | 0% | 0 | 536 |
| Jul | 84 | 61 | 4.7 | 0% | 0 | 702 |
| Aug | 82 | 59 | 4.8 | 0% | 0 | 643 |
| Sep | 75 | 52 | 5.3 | 9% | <1 | 410 |
| Oct | 63 | 40 | 5.2 | 93% | 7 | 130 |
| Nov | 51 | 32 | 3.9 | 100% | 18 | 22 |
| Dec | 40 | 25 | 4.4 | 100% | 25 | 3 |
Monthly normals 1991–2020 at E Stroudsburg, PA (471 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.
Compared with the next station
The nearest other station, Mt Pocono Mountains Airport, PA, 12 miles northwest of Stroudsburg and 1,445 feet higher, has a last frost 5 days later (May 6), a first frost 4 days earlier (October 8), a season 9 days shorter.
When it snows in Stroudsburg, Pennsylvania
The first measurable snow (0.1 inch or more) in Stroudsburg usually arrives around November 26, and the last of the season around March 27. Those are the middle dates across the winters of 1991–2020 at E Stroudsburg, PA, 3.5 miles away: half of years saw snow earlier, half later. Every one of those winters saw snow. The last 32°F night of spring typically comes 35 days after the last snow.
Planting calendar for 18360
| When | What to do |
|---|---|
| February 20 – March 6 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| March 6 – March 20 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| April 3 – April 17 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| May 1 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by July 20 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by September 28 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| October 12 onward | Plant garlic, mulch beds, lift tender bulbsGarlic wants a cold spell; bare soil loses structure over winter. |
The weeks before and after the 50% dates are general rules of thumb, not NOAA figures; a seed packet gives the timing for each variety.
Where these figures come from
ZIP 18360 is 4 miles from E Stroudsburg, PA, which stands at 471 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 6 other ZIP codes share the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 18360 in zone 6b, the band where the coldest night of the year averaged -5 to 0°F (-20.6 to -17.8°C) over 1991–2020; a zone describes winter lows, not frost dates.
Frost dates across Pennsylvania →
Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.
Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.