Frost Dates for 65275 — Paris, Missouri

Half of springs at Shelbina, MO see their last 32°F night by April 21; only one in ten is past it by April 9, and one in ten still has one after May 5. Planting tender crops after April 27 leaves a 30% risk of a frost on them, after April 30 20%, and after May 5 10%. The 14 days between the even-odds date and the one-in-ten date is narrower than at 80% of the 158 Missouri stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 17 in half of years, as early as October 2 one year in ten, and holds off past October 30 one year in ten. A hard freeze of 28°F follows 11 days later, around October 28; in spring the one-in-ten date for 28°F is April 25, 10 days before the 32°F one. The freeze-free season lasts 177 days in a typical year, shorter than at 93% of the 158 Missouri stations; it reaches 197 days one year in ten and falls short of 158 one year in ten. On average 128 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 10 days longer, to about May 1, and return around October 5. Severe cold of 16°F or below comes every winter, usually between November 25 and March 10.

July is the warmest month at Shelbina, MO, averaging 87°F by day and 66°F at night; January is the coldest at 36°F and 17°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 19% of years.

Warmth for growing adds up to 3,600 growing degree days a year (base 50°F), fewer than at 87% of the 158 Missouri stations. 36% of them (1,300) have built up by the end of June, and July adds the most, 809. Precipitation totals 42.2 inches a year, most in May (5.3") and least in January (1.8"); May to September bring 55% of it.

The nearest other station, Monroe City, MO, 19 miles northeast of Paris, has a last frost 9 days earlier (April 12), a first frost 5 days later (October 22), a season 13 days longer.

The first measurable snow (0.1 inch or more) in Paris usually arrives around December 6, and the last of the season around March 7. Those are the middle dates across the winters of 1991–2020 at Shelbina, MO, 15.3 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 45 days after the last snow.

ZIP 65275 is 15 miles from Shelbina, MO, which stands at 747 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station; its figures are presented in full for 63468 (Shelbina). The 2023 USDA Plant Hardiness Zone Map lists ZIP 65275 in zone 6a, the band where the coldest night of the year averaged -10 to -5°F (-23.3 to -20.6°C) over 1991–2020; a zone describes winter lows, not frost dates.