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San Juan County, CO hail & severe wind history
3 storm reports on file for San Juan County between 2012-07-20 and 2013-07-17 — 0 hail and 3 severe thunderstorm wind. That averages 1.5 reports a year, and Jul is the busiest month.
Search every San Juan County report
Filter the full record below — pick a year, narrow to a month, or drag the hail-size slider to see only the storms big enough to dent a roof (1" and up is the usual threshold insurers care about).
3 of 3 reports match.
Reports by month for the current filter — the shape of San Juan County’s storm season.
| Date | Type | Size / gust | Nearest location | Report detail |
|---|---|---|---|---|
| 2013-07-17 16:00 | Wind | 67 kt 77 mph | 4.91 mi W of Gladstone | Outflow winds from a thunderstorm produced strong wind gusts at the Eagle Mountain wind sensor location. |
| 2012-07-24 12:00 | Wind | 53 kt 61 mph | 4.91 mi W of Gladstone | The Eagle Mountain automated weather station recorded a 61 mph outflow wind gust. |
| 2012-07-20 17:00 | Wind | 73 kt 84 mph | 4.91 mi W of Gladstone | The Eagle Mountain weather station measured thunderstorm outflow wind gusts of 84 mph. |
Worst storm days in San Juan County
| Date | Reports that day | Largest hail | Peak gust |
|---|---|---|---|
| 2013-07-17 | 1 | — | 77 mph |
| 2012-07-24 | 1 | — | 61 mph |
| 2012-07-20 | 1 | — | 84 mph |
Reports by year
Report counts are driven partly by how many people were around to report a storm, so recent years tend to look busier than the early 2010s. Treat the trend as a reporting trend, not purely a weather trend.
When does hail hit San Juan County?
Across 2 years of records, July produced the most reports (3), followed by the months either side of it. Monthly totals:
| Month | Reports | Share |
|---|---|---|
| January | 0 | 0.0% |
| February | 0 | 0.0% |
| March | 0 | 0.0% |
| April | 0 | 0.0% |
| May | 0 | 0.0% |
| June | 0 | 0.0% |
| July | 3 | 100.0% |
| August | 0 | 0.0% |
| September | 0 | 0.0% |
| October | 0 | 0.0% |
| November | 0 | 0.0% |
| December | 0 | 0.0% |
Nearby counties in Colorado
See all 61 Colorado counties →
About these numbers
Every row above is a report filed with the National Weather Service and archived in the NOAA NCEI Storm Events Database (FIPS 8111). Reports are eyewitness, trained-spotter and damage-survey observations, so they cluster near roads and towns and miss storms over empty country. Hail sizes are estimates. Damage figures are preliminary as filed and are never revised in this archive. Use this page for background, not for an insurance claim, a legal filing, or a roof assessment — for those, get the official record from NOAA directly.