Frost dates / New Mexico / Rio Rancho

Frost dates in Rio Rancho, NM

The station on this page is RIO RANCHO #2, NM US (USC00297481), 4.3 miles from the city point. Population in the Census 2024 estimate is 112,524.

Zone 7bUSDA average annual extreme minimum 5°F to 10°F, from ZIP 87144 (3.2 miles from the city point used on this page).

Median last 32°F is April 8. Median first 32°F is November 1. The 50% growing-season length is 203 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%	March 24	Earlier date. A last 32°F on or after this day is common.
50%	April 8	Median.
10%	April 28	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 20	Earlier date. A first 32°F on or before this day is uncommon.
50%	November 1	Median.
90%	November 12	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%	222
50%	203
90%	184

28°F threshold

	10%	50%	90%
Last, on or after	April 5	March 20	March 5
First, on or before	October 29	November 9	November 19
Season at least	251 days	233 days	213 days

36°F threshold

	10%	50%	90%
Last, on or after	May 8	April 26	April 12
First, on or before	October 10	October 22	November 3
Season at least	197 days	180 days	162 days

Station RIO RANCHO #2, NM US (USC00297481). Completeness flag R, 11 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 1612.4 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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Rio Rancho, NM

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

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

New Mexico. Nearest qualified station: RIO RANCHO #2, NM US (USC00297481), 4.3 miles. Median last 32°F April 8. Median first 32°F November 1. The 50% growing-season length is 203 days.

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32°F probabilities at this station

	10%	50%	90%
Last 32°F on or after	April 28	April 8	March 24
First 32°F on or before	October 20	November 1	November 12

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 New Mexico 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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