Frost Dates for 74864 — Prague, Oklahoma

Half of springs at Chandler 5SE Mesonet, OK see their last 32°F night by April 2; only one in ten is past it by March 10, and one in ten still has one after April 21. Planting tender crops after April 8 leaves a 30% risk of a frost on them, after April 13 20%, and after April 21 10%. The 19 days between the even-odds date and the one-in-ten date is wider than at 81% of the 114 Oklahoma 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 19 one year in ten, and holds off past November 18 one year in ten. A hard freeze of 28°F follows 10 days later, around November 12; in spring the one-in-ten date for 28°F is April 6, 15 days before the 32°F one. The freeze-free season lasts 214 days in a typical year, longer than at 61% of the 114 Oklahoma stations; it reaches 241 days one year in ten and falls short of 192 one year in ten. On average 74 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 13, and return around October 25. Severe cold of 16°F or below comes in 97% of winters, usually between December 19 and February 9.

July is the warmest month at Chandler 5SE Mesonet, OK, averaging 92°F by day and 71°F at night; January is the coldest at 50°F and 28°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 54% of years.

Warmth for growing adds up to 5,112 growing degree days a year (base 50°F), fewer than at 55% of the 114 Oklahoma stations. 39% of them (1,970) have built up by the end of June, and July adds the most, 978.

The nearest other station, Meeker 5 W, OK, 16 miles west of Prague, has a last frost 2 days later (April 4), a first frost 3 days earlier (October 30), a season 6 days shorter.

The first measurable snow (0.1 inch or more) in Prague usually arrives around December 22, and the last of the season around February 5. Those are the middle dates across the winters of 1991–2020 at Shawnee, OK, 15.9 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 56 days after the last snow.

ZIP 74864 is 13 miles from Chandler 5SE Mesonet, OK, which stands at 954 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 74864 in zone 7b, the band where the coldest night of the year averaged 5 to 10°F (-15.0 to -12.2°C) over 1991–2020; a zone describes winter lows, not frost dates.