Frost Dates
Frost Dates · New Mexico

Frost dates for Albuquerque, New Mexico

New Mexico · first & last freeze, from NOAA 1991–2020 climate normals

Typical last spring freeze (32°F)
April 23
median date, 1991–2020
Typical first fall freeze (32°F)
October 20
median date, 1991–2020
Typical frost-free season
180 days
between the median dates

In a typical year, the last spring freeze around Albuquerque comes near April 23 and the first fall freeze near October 20. One year in ten, a freeze still arrives after May 6 in spring — and one year in ten, the first fall freeze has already landed by October 8. NCEI's own growing-season statistic (days between freezes, percentiled per year) puts the median at 179 days.

JFMAMJJASONDApril 23October 20
The year at a glance: blue bands span the 9-in-10 to 1-in-10 range where the last spring / first fall 32°F freeze lands; the green band is the typical frost-free window between the median dates. Measured at Rio Grande Nature Ctr, NM (USC00297461), 2.7 mi from the city's census reference point, elev. 4,944 ft. NOAA/NCEI 1991–2020 normals.

Freeze-date probabilities, three thresholds

ThresholdLast spring — 9 in 10 years past byLast spring — typical (median)Last spring — 1 in 10 years later thanFirst fall — 1 in 10 years byFirst fall — typical (median)First fall — 9 in 10 years by
36°F — near-freezing (frost can occur)April 23May 5May 18September 28October 10October 22
32°F — freezingApril 7April 23May 6October 8October 20November 1
28°F — hard freezeMarch 19April 5April 21October 17October 31November 13

Measured at Rio Grande Nature Ctr, NM (USC00297461), 2.7 mi from the city's census reference point, elev. 4,944 ft. NOAA/NCEI 1991–2020 normals. Read each date column as odds over the 30-year record — e.g. "9 in 10 years past by" means only one spring in ten saw a later freeze than that date.

Frost-free windows (computed)

Window (32°F ends)OpensClosesLength
Cautious (1-in-10 freeze risk at each end)May 6October 8155 days
Typical (median freeze dates)April 23October 20180 days
Gambler's (9-in-10 freeze risk at each end)April 7November 1208 days

Pure arithmetic on the freeze-date percentiles above — the "cautious" window opens on the date only 1 year in 10 still sees a later spring freeze, and closes on the date by which only 1 year in 10 has already frozen.

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