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Hail in Los Alamos County, New Mexico
37 hail events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Hail.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. Storm records through 30 Jun 2026.
NCEI records 37 hail events in Los Alamos County, New Mexico, between 1950 and 2026, spread over 16 years.
July is the busiest month, with 13 of the recorded events. The last 20 years account for 25 events against 9 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.7% of the 5,297 hail events recorded in New Mexico; its 33.9 per 100 square miles compares with 4.4 statewide.
5 of the hail reports with a recorded size were golf-ball size (1.75 inches) or larger; the largest recorded stone was 2.00 inches (hen egg size).
Compared with New Mexico
| Measure | Los Alamos County | New Mexico | US |
|---|---|---|---|
| Hail events since 1950 | 37 | 5,297 | 424,356 |
| Per 100 square miles | 33.9 | 4.4 | 12.0 |
| Per 10,000 residents | 19.1 | 25.0 | 12.8 |
| Deaths recorded | 0 | 3 | 29 |
| Busiest month | July | June | May |
By year
Seasonality
0Feb
0Mar
0Apr
0May
7Jun
8Jul
13Aug
1Sep
1Oct
7Nov
0Dec
0
Magnitude distribution
NWS hail-size descriptors
- under 1 in
- pea to quarter
- 1–1.74 in
- quarter to golf ball
- 1.75–2.74 in
- golf ball to baseball
- 2.75–3.99 in
- baseball to softball
- 4 in and larger
- softball and larger
Hail size in inches as recorded by NCEI; events without a size are not binned.
Recorded events
All 37 events, most recent first. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 25 Jun 2025 | Hail | 1.00 in | — | — | — | — | County |
| 3 Aug 2024 | Hail | 0.75 in | — | — | — | — | County |
| 2 Jul 2024 | Hail | 0.88 in | — | — | — | — | County |
| 11 May 2024 | Hail | 0.75 in | — | — | — | — | County |
| 25 May 2020 | Hail | 0.88 in | — | — | — | — | County |
| 25 Jun 2017 | Hail | 0.88 in | — | — | — | — | County |
| 25 Jun 2017 | Hail | 1.25 in | — | — | — | — | County |
| 25 Jun 2017 | Hail | 0.88 in | — | — | — | — | County |
| 25 Jun 2017 | Hail | 1.00 in | — | — | — | — | County |
| 19 Oct 2015 | Hail | 0.88 in | — | — | — | — | County |
| 19 Oct 2015 | Hail | 0.88 in | — | — | — | — | County |
| 12 Oct 2012 | Hail | 1.50 in | $10K | — | — | — | County |
| 12 Oct 2012 | Hail | 1.00 in | $50K | — | — | — | County |
| 12 Oct 2012 | Hail | 0.75 in | — | — | — | — | County |
| 12 Oct 2012 | Hail | 0.75 in | — | — | — | — | County |
| 21 May 2012 | Hail | 0.75 in | — | — | — | — | County |
| 12 May 2012 | Hail | 1.00 in | — | — | — | — | County |
| 30 Jul 2009 | Hail | 0.88 in | — | — | — | — | County |
| 6 Jul 2009 | Hail | 1.75 in | — | — | — | — | County |
| 6 Jul 2009 | Hail | 1.50 in | — | — | — | — | County |
| 6 Jul 2009 | Hail | 1.50 in | $25K | — | — | — | County |
| 6 Jul 2009 | Hail | 1.00 in | $25K | — | — | — | County |
| 6 Jul 2009 | Hail | 1.75 in | — | — | — | — | County |
| 28 May 2008 | Hail | 1.00 in | — | — | — | — | County |
| 28 May 2008 | Hail | 0.75 in | — | — | — | — | County |
| 22 Jun 2006 | Hail | 1.00 in | — | — | — | — | County |
| 22 Jun 2006 | Hail | 1.00 in | — | — | — | — | County |
| 15 Jul 2005 | Hail | 1.00 in | — | — | — | — | County |
| 12 Oct 2000 | Hail | 0.75 in | — | — | — | — | County |
| 20 Jul 1990 | Hail | 1.75 in | — | — | — | — | County |
| 13 Jul 1990 | Hail | 1.75 in | — | — | — | — | County |
| 14 Jul 1989 | Hail | 1.00 in | — | — | — | — | County |
| 14 Jul 1989 | Hail | 1.00 in | — | — | — | — | County |
| 9 May 1989 | Hail | 1.00 in | — | — | — | — | County |
| 6 Sep 1968 | Hail | 1.50 in | — | — | — | — | County |
| 18 Jun 1965 | Hail | 1.25 in | — | — | — | — | County |
| 10 Jul 1961 | Hail | 2.00 in | — | — | — | — | County |
Questions and answers
How many hail events has Los Alamos County had?
37 events in the NCEI Storm Events record between 1950 and 2026. Reporting of hail became far more complete after 1996, so early decades undercount.
When was the last recorded hail event in Los Alamos County?
25 Jun 2025 (Hail, 1.00 in). Records reach NCEI about 120 days after the month ends.
What was the most damaging hail event recorded in Los Alamos County?
The hail of 12 Oct 2012, with property damage estimated by NCEI at $50K.
How does Los Alamos County compare with New Mexico for hail?
33.9 events per 100 square miles against 4.4 statewide; the county holds 37 of the state's 5,297 recorded events.
Provenance
NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026, public domain. County-recorded events plus zone-recorded events whose forecast zone is named for the county (marked "Forecast zone"). Population and area from the US Census Bureau (2021). Built 1 Oct 2026. See the methodology, the Hail hub and the county page.