Frost Dates for 67878 — Syracuse, Kansas

Half of springs at Syracuse 1NE, KS see their last 32°F night by May 1; only one in ten is past it by April 17, and one in ten still has one after May 14. Planting tender crops after May 5 leaves a 30% risk of a frost on them, after May 9 20%, and after May 14 10%. The 13 days between the even-odds date and the one-in-ten date is narrower than at 65% of the 110 Kansas stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 10 in half of years, as early as September 28 one year in ten, and holds off past October 21 one year in ten. A hard freeze of 28°F follows 9 days later, around October 19; in spring the one-in-ten date for 28°F is May 5, 9 days before the 32°F one. The freeze-free season lasts 162 days in a typical year, shorter than at 95% of the 110 Kansas stations; it reaches 178 days one year in ten and falls short of 143 one year in ten. On average 157 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 9 days longer, to about May 10, and return around October 3. Severe cold of 16°F or below comes every winter, usually between November 13 and March 18.

July is the warmest month at Syracuse 1NE, KS, averaging 93°F by day and 63°F at night; January is the coldest at 46°F and 14°F. A freezing night is all but certain in every month from October to April (a 90% chance or more). From June to August the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 51% of years.

Warmth for growing adds up to 3,688 growing degree days a year (base 50°F), fewer than at 90% of the 110 Kansas stations. 35% of them (1,280) have built up by the end of June, and July adds the most, 866. Precipitation totals 17.0 inches a year, most in July (3.3") and least in January (0.3"); May to September bring 68% of it.

The nearest other station, Lakin, KS, 31 miles east of Syracuse and 310 feet lower, has a last frost 13 days earlier (April 18), a first frost 13 days later (October 23), a season 25 days longer.

The first measurable snow (0.1 inch or more) in Syracuse usually arrives around November 28, and the last of the season around March 24. Those are the middle dates across the winters of 1991–2020 at Syracuse 1NE, KS, 4.2 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 38 days after the last snow.

ZIP 67878 is 4 miles from Syracuse 1NE, KS, which stands at 3,308 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 67878 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.