Frost Dates for 89820 — Battle Mountain, Nevada

Half of springs at Battle Mountain 4SE, NV see their last 32°F night by May 9; only one in ten is past it by April 23, and one in ten still has one after May 31. Planting tender crops after May 17 leaves a 30% risk of a frost on them, after May 23 20%, and after May 31 10%. The 22 days between the even-odds date and the one-in-ten date is wider than at 53% of the 38 Nevada stations behind this site's ZIP pages, so a fixed calendar date is a gamble here.

In fall the first 32°F night comes by September 29 in half of years, as early as September 15 one year in ten, and holds off past October 11 one year in ten. A hard freeze of 28°F follows 10 days later, around October 9; in spring the one-in-ten date for 28°F is May 12, 19 days before the 32°F one. The freeze-free season lasts 141 days in a typical year, shorter than at 79% of the 38 Nevada stations; it reaches 163 days one year in ten and falls short of 117 one year in ten. On average 158 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 21 days longer, to about May 30, and return around September 19. Severe cold of 16°F or below comes every winter, usually between November 13 and February 21.

July is the warmest month at Battle Mountain 4SE, NV, averaging 100°F by day and 56°F at night; December is the coldest at 46°F and 22°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 70% of years.

Warmth for growing adds up to 3,431 growing degree days a year (base 50°F), more than at 61% of the 38 Nevada stations. 32% of them (1,099) have built up by the end of June, and July adds the most, 866. Precipitation totals 9.3 inches a year, most in May (1.4") and least in July (0.2"); May to September bring 33% of it.

The first measurable snow (0.1 inch or more) in Battle Mountain usually arrives around November 25, and the last of the season around March 27. Those are the middle dates across the winters of 1991–2020 at Battle Mountain 4SE, NV, 13.3 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 43 days after the last snow.

ZIP 89820 is 13 miles from Battle Mountain 4SE, NV, which stands at 4,505 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 89820 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.