USDA Hardiness Zone 7a
Frost Dates for 25524 — Harts, West Virginia
NOAA 1991–2020 normals from Logan, WV (672 ft), 13 miles southeast.
Updated
In Harts, the last spring frost (32°F) is around April 8 in half of years and has passed by April 21 in nine years out of ten. The first fall frost comes around November 2, as early as October 20 one year in ten, leaving a typical freeze-free season of 208 days (NOAA, Logan, WV).
- Last spring frost
- April 8
- First fall frost
- November 2
- Growing season
- 208 days
- Hardiness zone
- 7a
50% probability
50% probability
freeze-free, 50%
0 to 5°F (-17.8 to -15.0°C) coldest night
- First snow
- December 21
- Last snow
- March 6
- Winters with snow
- 97%
- Snow per year
- —
median, 1991–2020
median, 1991–2020
28 of 29 observed
NOAA normal
Frost risk by date in Harts
Half of springs at Logan, WV see their last 32°F night by April 8; only one in ten is past it by March 25, and one in ten still has one after April 21. Planting tender crops after April 14 leaves a 30% risk of a frost on them, after April 17 20%, and after April 21 10%. The 13 days between the even-odds date and the one-in-ten date is the narrowest of the 84 West Virginia stations behind this site's ZIP pages.
In fall the first 32°F night comes by November 2 in half of years, as early as October 20 one year in ten, and holds off past November 15 one year in ten. A hard freeze of 28°F follows 11 days later, around November 13; in spring the one-in-ten date for 28°F is April 12, 9 days before the 32°F one. The freeze-free season lasts 208 days in a typical year, longer than at 99% of the 84 West Virginia stations; it reaches 228 days one year in ten and falls short of 189 one year in ten. On average 83 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 April 21, and return around October 25. Severe cold of 16°F or below comes in 97% of winters, usually between December 29 and February 12.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 5 | Apr 11 | Apr 15 | Apr 18 | Apr 21 | Apr 23 | Apr 27 | May 1 | May 6 |
| 32°F | Mar 25 | Mar 31 | Apr 2 | Apr 5 | Apr 8 | Apr 11 | Apr 14 | Apr 17 | Apr 21 |
| 28°F | Mar 8 | Mar 16 | Mar 20 | Mar 24 | Mar 28 | Mar 31 | Apr 2 | Apr 5 | Apr 12 |
| 24°F | Feb 21 | Feb 28 | Mar 5 | Mar 10 | Mar 13 | Mar 17 | Mar 20 | Mar 25 | Mar 31 |
| 20°F | Feb 3 | Feb 11 | Feb 19 | Feb 26 | Feb 28 | Mar 4 | Mar 9 | Mar 14 | Mar 20 |
| 16°F97% of yrs | Jan 19 | Jan 29 | Feb 3 | Feb 7 | Feb 12 | Feb 19 | Feb 27 | Mar 3 | Mar 13 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 11 | Oct 16 | Oct 18 | Oct 22 | Oct 25 | Oct 27 | Oct 30 | Nov 1 | Nov 5 |
| 32°F | Oct 20 | Oct 25 | Oct 29 | Nov 1 | Nov 2 | Nov 4 | Nov 7 | Nov 10 | Nov 15 |
| 28°F | Oct 31 | Nov 4 | Nov 7 | Nov 10 | Nov 13 | Nov 16 | Nov 19 | Nov 24 | Dec 1 |
| 24°F | Nov 10 | Nov 15 | Nov 19 | Nov 24 | Nov 28 | Dec 1 | Dec 4 | Dec 9 | Dec 18 |
| 20°F | Nov 21 | Nov 28 | Dec 2 | Dec 7 | Dec 12 | Dec 18 | Dec 23 | Dec 29 | Jan 5 |
| 16°F97% of yrs | Dec 5 | Dec 11 | Dec 19 | Dec 24 | Dec 29 | Jan 2 | Jan 7 | Jan 13 | Jan 21 |
Freeze probabilities 1991–2020 at Logan, WV, 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 25524 →Compare Harts with another place →
Weather by month in Harts
July is the warmest month at Logan, WV, averaging 89°F by day and 67°F at night; January is the coldest at 45°F and 27°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 76% of years.
Warmth for growing adds up to 4,301 growing degree days a year (base 50°F), more than at 99% of the 84 West Virginia stations. 38% of them (1,620) have built up by the end of June, and July adds the most, 860. Precipitation totals 49.3 inches a year, most in July (5.9") and least in November (2.9"); May to September bring 47% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 45 | 27 | 3.5 | 100% | 21 | 13 |
| Feb | 49 | 29 | 3.5 | 100% | 17 | 20 |
| Mar | 59 | 35 | 4.3 | 99% | 13 | 87 |
| Apr | 71 | 44 | 4.4 | 76% | 2 | 265 |
| May | 79 | 54 | 5.3 | 2% | 0 | 509 |
| Jun | 86 | 63 | 4.9 | 0% | 0 | 726 |
| Jul | 89 | 67 | 5.9 | 0% | 0 | 860 |
| Aug | 88 | 66 | 3.9 | 0% | 0 | 826 |
| Sep | 82 | 59 | 3.3 | 0% | 0 | 614 |
| Oct | 70 | 47 | 3.2 | 39% | 1 | 284 |
| Nov | 58 | 36 | 2.9 | 99% | 11 | 73 |
| Dec | 48 | 31 | 4.2 | 100% | 18 | 24 |
Monthly normals 1991–2020 at Logan, WV (672 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, Madison 3NNW, WV, 15 miles east of Harts, has a last frost 8 days later (April 16), a first frost 6 days earlier (October 27), a season 16 days shorter.
When it snows in Harts, West Virginia
The first measurable snow (0.1 inch or more) in Harts usually arrives around December 21, and the last of the season around March 6. Those are the middle dates across the winters of 1991–2020 at Logan, WV, 13 miles away: half of years saw snow earlier, half later. Snow fell in 97% of those winters. The last 32°F night of spring typically comes 33 days after the last snow.
Planting calendar for 25524
| When | What to do |
|---|---|
| January 28 – February 11 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| February 11 – February 25 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| March 11 – March 25 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| April 8 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 10 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 19 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 2 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 25524 is 13 miles from Logan, WV, which stands at 672 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 2 other ZIP codes share the station; its figures are presented in full for 25508 (Chapmanville). The 2023 USDA Plant Hardiness Zone Map lists ZIP 25524 in zone 7a, the band where the coldest night of the year averaged 0 to 5°F (-17.8 to -15.0°C) over 1991–2020; a zone describes winter lows, not frost dates.
Frost dates across West Virginia →
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.