Hail, Arapahoe
- When
- May 15, 12:23 PM CST
- Where
- Arapahoe County
- Measured
- 2.75 in hail
- Coordinates
- 39.620, -105.000
Hail and Damaging Winds in Colorado, May 15, 1991
9 hail, 2 thunderstorm wind, as filed by the National Weather Service.
Where it happened
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 11
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
Event by event
9 hail, 2 thunderstorm wind. Local standard time, as filed.
Hail, Boulder
- When
- May 15, 12:45 PM CST
- Where
- Boulder County
- Measured
- 0.75 in hail
- Coordinates
- 40.020, -105.320
Hail, El Paso
- When
- May 15, 2:00 PM CST
- Where
- El Paso County
- Measured
- 1.75 in hail
- Coordinates
- 38.980, -104.220
Thunderstorm Wind, Weld
- When
- May 15, 2:45 PM CST
- Where
- Weld County
- Measured
- 51 kt (59 mph)
- Coordinates
- 40.100, -104.520
Hail, Larimer
- When
- May 15, 3:11 PM CST
- Where
- Larimer County
- Measured
- 1 in hail
- Coordinates
- 40.300, -105.080
Hail, Larimer
- When
- May 15, 3:28 PM CST
- Where
- Larimer County
- Measured
- 1.75 in hail
- Coordinates
- 40.400, -105.070
Thunderstorm Wind, Morgan
- When
- May 15, 3:30 PM CST
- Where
- Morgan County
- Measured
- 78 kt (90 mph)
- Coordinates
- 40.270, -104.020
Hail, Larimer
- When
- May 15, 3:45 PM CST
- Where
- Larimer County
- Measured
- 0.75 in hail
- Coordinates
- 40.580, -105.100
Hail, Larimer
- When
- May 15, 4:00 PM CST
- Where
- Larimer County
- Measured
- 1.75 in hail
- Coordinates
- 40.580, -105.080
Hail, Weld
- When
- May 15, 4:08 PM CST
- Where
- Weld County
- Measured
- 1 in hail
- Coordinates
- 40.880, -103.780
Hail, Pueblo
- When
- May 15, 5:45 PM CST
- Where
- Pueblo County
- Measured
- 0.75 in hail
- Coordinates
- 38.270, -104.600
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornadoes and Hail in Oklahoma, May 15, 1991
- Tornadoes and Hail in Texas, May 15, 1991
- Tornado and Hail in Wyoming, May 15, 1991
- Tornadoes and Hail in Kansas, May 15, 1991
- Tornado and Damaging Wind in Louisiana, May 15, 1991
- Hail in South Dakota, May 15, 1991
- Hail and Damaging Wind in Nebraska, May 15, 1991
- Hail in Missouri, May 15, 1991
- Damaging Winds in Arkansas, May 15, 1991
- Damaging Wind in Alabama, May 15, 1991
- Tornado in New Mexico, May 15, 1991
- Damaging Wind in Ohio, May 15, 1991
More
Every storm in Colorado in 1991Every state in 1991This day in weather historyWarnings in Colorado, May 1991
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 9988020, 9988021, 9988022, 9988023, 9988024, 9988025, 9988026, 9988027, 9988028, 9988029, 9988030.