Frost Dates for 63764 — Marble Hill, Missouri

Half of springs at Marble Hill, MO see their last 32°F night by April 12; only one in ten is past it by March 27, and one in ten still has one after April 28. Planting tender crops after April 19 leaves a 30% risk of a frost on them, after April 23 20%, and after April 28 10%. The 16 days between the even-odds date and the one-in-ten date is narrower than at 35% of the 158 Missouri stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 23 in half of years, as early as October 10 one year in ten, and holds off past November 3 one year in ten. A hard freeze of 28°F follows 9 days later, around November 1; in spring the one-in-ten date for 28°F is April 17, 11 days before the 32°F one. The freeze-free season lasts 193 days in a typical year, shorter than at 55% of the 158 Missouri stations; it reaches 213 days one year in ten and falls short of 171 one year in ten. On average 95 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 11 days longer, to about April 23, and return around October 13. Severe cold of 16°F or below comes every winter, usually between December 6 and February 27.

July is the warmest month at Marble Hill, MO, averaging 90°F by day and 68°F at night; January is the coldest at 46°F and 25°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 80% of years.

Warmth for growing adds up to 4,489 growing degree days a year (base 50°F), more than at 89% of the 158 Missouri stations. 38% of them (1,717) have built up by the end of June, and July adds the most, 887. Precipitation totals 51.8 inches a year, most in April (5.8") and least in January (3.3"); May to September bring 42% of it.

The nearest other station, Advance 1 S, MO, 15 miles south of Marble Hill, has a last frost 5 days earlier (April 7), a first frost 4 days later (October 27), a season 11 days longer.

The first measurable snow (0.1 inch or more) in Marble Hill usually arrives around December 26, and the last of the season around February 12. Those are the middle dates across the winters of 1991–2020 at Marble Hill, MO, 0.9 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 59 days after the last snow.

ZIP 63764 is under a mile from Marble Hill, MO, which stands at 390 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 63764 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.