Frost dates / Nevada / Reno

Frost dates in Reno, NV

The station on this page is RENO WFO, NV US (USC00266791), 3.2 miles from the city point. Population in the Census 2024 estimate is 281,714.

Zone 7bUSDA average annual extreme minimum 5°F to 10°F, from ZIP 89503 (0.8 miles from the city point used on this page).

Median last 32°F is April 28. Median first 32°F is October 27. The 50% growing-season length is 182 days. The green band runs from the median last frost to the median first frost. Thin ticks mark the 10%, 50%, and 90% dates.

Outside the median season Growing seasonTicks: 10%, 50%, and 90%

Last 32°F in spring

NCEI’s probability is the chance the last spring minimum of 32°F or lower occurs on or after the date.

Probability	Date	How to read it
90%	April 9	Earlier date. A last 32°F on or after this day is common.
50%	April 28	Median.
10%	May 19	Later date. A last 32°F on or after this day is uncommon.

First 32°F in fall

NCEI’s probability is the chance the first autumn minimum of 32°F or lower occurs on or before the date.

Probability	Date	How to read it
10%	October 10	Earlier date. A first 32°F on or before this day is uncommon.
50%	October 27	Median.
90%	November 10	Later date. A first 32°F on or before this day is common.

32°F growing-season length

Days between the last spring 32°F and the first autumn 32°F. The figure is a length the season meets or exceeds at that probability, from NCEI, not a subtraction done on this site.

Probability the season is at least this long	Days
10%	208
50%	182
90%	154

28°F threshold

	10%	50%	90%
Last, on or after	May 2	April 10	March 18
First, on or before	October 23	November 8	November 23
Season at least	241 days	210 days	181 days

36°F threshold

	10%	50%	90%
Last, on or after	June 5	May 14	April 25
First, on or before	September 28	October 15	November 1
Season at least	178 days	152 days	125 days

Station RENO WFO, NV US (USC00266791). Completeness flag R, 23 years used for the 32°F dates. NCEI’s annual probability of at least one day at or below 32°F is 100%. Freeze dates are conditional on that threshold occurring. Elevation 1520 m. The same probability language applies to the 28°F and 36°F rows when those dates passed the same quality checks.

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Reno, NV

Zone 7bAverage annual extreme minimum 5°F to 10°F

Outside the median season Growing seasonTicks: 10%, 50%, and 90%

Nevada. Nearest qualified station: RENO WFO, NV US (USC00266791), 3.2 miles. Median last 32°F April 28. Median first 32°F October 27. The 50% growing-season length is 182 days.

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32°F probabilities at this station

	10%	50%	90%
Last 32°F on or after	May 19	April 28	April 9
First 32°F on or before	October 10	October 27	November 10

Column order matches the NCEI file: for the last freeze, 10% is the later date and 90% is the earlier date. How to read the probabilities.

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Planting calendar

Frost dates for Nevada are above. Planting windows appear for states with a cited extension guide. The fall and seed tools use the numbers you enter and the station dates.

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