16 days with hail of 1 inch or larger have been logged in 80233 (Thornton) since 1996, 1.8 times the Adams County ZIP average of 9.
Area name is an approximation from Census ZCTA data. Method and limits.
Largest storm: May 30, 2024
1.75-inch (golf ball) hail near Thornton. Evening supercells moved southeast across the metro, hitting the north and east sides hardest with baseball-size hail. Also the largest report in 80011, 80238. (NOAA NCEI event 1176808, episode 191135)
80233 vs. the Adams County average
| Since 1996 | 80233 | Adams Co. ZIP avg. (23) |
|---|---|---|
| Days with 1 in.+ hail | 16 | 9 |
| Reports 1 in.+ | 26 | 14.2 |
| Reports 1.75 in.+ | 6 | |
| All reports | 35 | |
| Last report | June 17, 2025 |
Hail days here run 1.8 times the county ZIP average.
Homes in 80233
| Housing (2020-2024) | 80233 | Adams Co. |
|---|---|---|
| Median year built | 1983 | 1993 |
| Built before 1980 | 47.2% | 37.5% |
| Built before 2000 | 72.3% | |
| Owner-occupied | 62.1% | 69.6% |
| Housing units | 18,577 |
Source: Census ACS 5-year, 2020-2024.
Every one of the 26 reports here was at least the 1-inch size that an IIBEC table ties to damage on 3-tab shingles; 6 reached 1.75 inches. With a median build year of 1983 and 72.3% of homes built before 2000, an original roof on a typical house here has been through most of the storms listed above. (IIBEC)
Reports by decade
| Decade | All | 1 in.+ | 1.75 in.+ |
|---|---|---|---|
| 1996-99 | 0 | 0 | 0 |
| 2000s | 4 | 3 | 0 |
| 2010s | 14 | 10 | 4 |
| 2020s | 17 | 13 | 2 |
Every 1 in.+ hail day in 80233
2005: April 19 (1), June 24 (1); 2009: June 14 (1.25); 2010: May 26 (1.75), June 10 (1), June 11 (1.75); 2011: May 18 (1), July 8 (1); 2014: May 7 (1); 2016: May 24 (1); 2018: June 18 (1.75); 2023: May 9 (1), June 21 (1), Aug. 3 (1); 2024: May 30 (1.75); 2025: June 17 (1).
10 largest reports
| Date | Hail | NCEI |
|---|---|---|
| May 30, 2024 | 1.75 in. (golf ball) | 1176808 |
| May 30, 2024 | 1.75 in. (golf ball) | 1176855 |
| June 18, 2018 | 1.75 in. (golf ball) | 752329 |
| June 11, 2010 | 1.75 in. (golf ball) | 232753 |
| May 26, 2010 | 1.75 in. (golf ball) | 224712 |
| May 26, 2010 | 1.75 in. (golf ball) | 224715 |
| May 30, 2024 | 1.5 in. (ping pong ball) | 1176817 |
| June 14, 2009 | 1.25 in. (half dollar) | 165625 |
| June 17, 2025 | 1 in. (quarter) | 1257762 |
| June 17, 2025 | 1 in. (quarter) | 1257764 |
Neighboring ZIP pages: 80226 (Lakewood) · 80238 (Denver)
Denver metro hail history · Denver hail damage repair · Free roof inspection · Adams County ZIPs
