June 18, 2018 brought the biggest hail on record in 80031 (Westminster): 2 inches, topping 18 other NOAA reports of 1 inch or larger since 1996.
Area name is an approximation from Census ZCTA data. Method and limits.
Largest storm: June 18, 2018
2-inch (hen egg) hail near Federal Heights. The NCEI note for this episode covers its eastern end, where storms stripped wheat and young corn in northern Washington County and washed out road shoulders. Also the largest report in 80020, 80027, 80601. (NOAA NCEI event 752323, episode 125435)
80031 vs. the Adams County average
| Since 1996 | 80031 | Adams Co. ZIP avg. (23) |
|---|---|---|
| Days with 1 in.+ hail | 10 | 9 |
| Reports 1 in.+ | 19 | 14.2 |
| Reports 1.75 in.+ | 1 | |
| All reports | 23 | |
| Last report | June 26, 2026 |
Hail days here run about the same as the county ZIP average. Part of this ZIP area lies in Jefferson County.
Homes in 80031
| Housing (2020-2024) | 80031 | Adams Co. |
|---|---|---|
| Median year built | 1985 | 1993 |
| Built before 1980 | 39.8% | 37.5% |
| Built before 2000 | 76.4% | |
| Owner-occupied | 69.7% | 69.6% |
| Housing units | 15,265 |
Source: Census ACS 5-year, 2020-2024.
The 2-inch maximum here meets or tops the 2-inch hail a roof covering must withstand for the IBHS FORTIFIED High Wind & Hail designation, and 1 of the 19 reports reached 1.75 inches. With a median build year of 1985 and 76.4% of homes built before 2000, an original roof on a typical house here has been through most of the storms listed above. (Insurance Institute for Business & Home Safety)
Reports by decade
| Decade | All | 1 in.+ | 1.75 in.+ |
|---|---|---|---|
| 1996-99 | 0 | 0 | 0 |
| 2000s | 5 | 2 | 0 |
| 2010s | 7 | 6 | 1 |
| 2020s | 11 | 11 | 0 |
Every 1 in.+ hail day in 80031
2009: June 14 (1.5); 2014: May 7 (1.5); 2016: May 24 (1); 2017: May 8 (1); 2018: June 18 (2); 2019: July 5 (1); 2021: Aug. 19 (1); 2023: May 26 (1); 2024: May 30 (1); 2026: June 26 (1).
10 largest reports
| Date | Hail | NCEI |
|---|---|---|
| June 18, 2018 | 2 in. (hen egg) | 752323 |
| May 7, 2014 | 1.5 in. (ping pong ball) | 513653 |
| June 14, 2009 | 1.5 in. (ping pong ball) | 165627 |
| June 26, 2026 | 1 in. (quarter) | 1344597 |
| June 26, 2026 | 1 in. (quarter) | 1344598 |
| May 30, 2024 | 1 in. (quarter) | 1176807 |
| May 30, 2024 | 1 in. (quarter) | 1176811 |
| May 30, 2024 | 1 in. (quarter) | 1176822 |
| May 30, 2024 | 1 in. (quarter) | 1176839 |
| May 26, 2023 | 1 in. (quarter) | 1101359 |
Neighboring ZIP pages: 80027 (Louisville) · 80033 (Wheat Ridge)
Denver metro hail history · Denver hail damage repair · Free roof inspection · Adams County ZIPs
