Frost Dates for 68002 — Arlington, Nebraska

Half of springs at Fremont, NE see their last 32°F night by April 23; only one in ten is past it by April 9, and one in ten still has one after May 6. Planting tender crops after April 29 leaves a 30% risk of a frost on them, after May 1 20%, and after May 6 10%. The 13 days between the even-odds date and the one-in-ten date is narrower than at 29% of the 68 Nebraska stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 15 in half of years, as early as September 29 one year in ten, and holds off past October 27 one year in ten. A hard freeze of 28°F follows 9 days later, around October 24; in spring the one-in-ten date for 28°F is April 27, 9 days before the 32°F one. The freeze-free season lasts 172 days in a typical year, longer than at 71% of the 68 Nebraska stations; it reaches 191 days one year in ten and falls short of 152 one year in ten. On average 140 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 3, and return around October 5. Severe cold of 16°F or below comes every winter, usually between November 18 and March 15.

July is the warmest month at Fremont, NE, averaging 87°F by day and 65°F at night; January is the coldest at 32°F and 13°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 23% of years.

Warmth for growing adds up to 3,407 growing degree days a year (base 50°F), more than at 66% of the 68 Nebraska stations. 35% of them (1,208) have built up by the end of June, and July adds the most, 803. Precipitation totals 30.5 inches a year, most in June (5.0") and least in January (0.8"); May to September bring 64% of it.

The nearest other station, Valley NWS, NE, 11 miles south of Arlington, has a last frost 8 days earlier (April 15), a first frost 6 days later (October 21), a season 15 days longer.

The first measurable snow (0.1 inch or more) in Arlington usually arrives around November 22, and the last of the season around March 22. Those are the middle dates across the winters of 1991–2020 at Fremont, NE, 7.1 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 32 days after the last snow.

ZIP 68002 is 7 miles from Fremont, NE, which stands at 1,180 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 68025 (Fremont). The 2023 USDA Plant Hardiness Zone Map lists ZIP 68002 in zone 5b, the band where the coldest night of the year averaged -15 to -10°F (-26.1 to -23.3°C) over 1991–2020; a zone describes winter lows, not frost dates.