NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Morrison, CO
Every tropical system within 75 miles since 1851 and every tornado within 25 miles since 1950.
Data: NOAA NHC HURDAT2 and NOAA SPC tornado and hail reports, through 2025 · Updated
No tropical storm or hurricane has passed within 75 miles of Morrison, Colorado since records began in 1851. Since 1950, 111 tornadoes have touched down within 25 miles, 1 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 111
- EF3 or stronger
- 1
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
no recorded deaths
What the records show for Morrison
The strongest of the 111 tornadoes within 25 miles was an F3 on June 15, 1988; its path came within 15 miles. Of the 111, 2 had paths within 5 miles of the city centre, and 22 have come since 2000. June has had the most tornadoes, 45. The most recent tornado was on July 6, 2023. Morrison has more tornadoes within 25 miles than 59% of the 157 Colorado cities on this site. Hail has been reported within 10 miles 363 times since 1965, with stones up to 2.75 inches (baseball size). Morrison has more hail reports within 10 miles than 84% of the 157 Colorado cities.
Compare Morrison's storm record with another city →
Tornadoes within 25 miles of Morrison
By decade
- 2020s4
- 2010s8
- 2000s10
- 1990s23
- 1980s36(1 EF3+)
- 1970s14
- 1960s15
- 1950s1
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Jun 15, 1988 | F3 | 15 mi | 2.5 mi | 0 / 7 |
| Jun 15, 1988 | F2 | 15 mi | 0.5 mi | 0 / 0 |
| Jun 5, 1988 | F2 | 24 mi | 0.5 mi | 0 / 0 |
| Jun 8, 1986 | F2 | 16 mi | 1.1 mi | 0 / 6 |
| Jul 19, 1985 | F2 | 18 mi | 0.5 mi | 0 / 0 |
| Jun 3, 1981 | F2 | 20 mi | 2.3 mi | 0 / 42 |
| Jun 3, 1981 | F2 | 10 mi | 0.1 mi | 0 / 0 |
| May 17, 1978 | F2 | 23 mi | 0.5 mi | 0 / 0 |
| May 30, 1976 | F2 | 20 mi | 5.4 mi | 0 / 0 |
| May 20, 1961 | F2 | 23 mi | 2 mi | 0 / 2 |
| Jun 22, 2023 | EF1 | 10 mi | 6.3 mi | 0 / 0 |
| Jul 21, 2015 | EF1 | 25 mi | 0.29 mi | 0 / 0 |
The strongest 12 of 111, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Morrison
The Storm Prediction Center has 363 hail reports within 10 miles of Morrison since 1965, made on 156 separate days. Of these, 265 were 1 inch across or larger, and 14 reached 2 inches. The largest size, 2.75 inches (baseball size), was reported on 3 days, most recently May 15, 1991. The most recent report is from August 23, 2025. June has the most reports, 149.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Morrison
The nearest NOAA station with 1991–2020 climate normals is Marston Fltr Plt, CO, 6 miles east of Morrison at 5,610 feet. July is the warmest, with an average high of 86°F and low of 60°F; January is the coolest, at 46°F and 19°F. May is the wettest at 2.7 inches of precipitation on average and January the driest at 0.5 inches; the year adds up to 16.7 inches over 40 days with at least a tenth of an inch. Highs reach 90°F on about 33 days a year, almost all from June to September. Lows fall below freezing on about 147 nights a year. Snowfall averages 34.1 inches a year, most of it in January. That 16.7 inches is more than at 56 of the 91 Colorado stations used on this site (62%). Lakewood, 7 miles northeast, has its own station (Lakewood, CO): 17.5 inches a year, 0.8 more than here, and the same July average high, 86°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 46 | 19 | 0.5 | 2 | 6.3 |
| Feb | 47 | 20 | 0.7 | 2 | 6.2 |
| Mar | 55 | 28 | 1.2 | 3 | 5.4 |
| Apr | 60 | 35 | 2.1 | 4 | 4.1 |
| May | 69 | 44 | 2.7 | 6 | 0.8 |
| Jun | 81 | 53 | 1.9 | 4 | 0.0 |
| Jul | 86 | 60 | 2.1 | 5 | 0.0 |
| Aug | 85 | 58 | 1.9 | 4 | 0.0 |
| Sep | 77 | 49 | 1.3 | 3 | 0.0 |
| Oct | 64 | 37 | 1.0 | 3 | 1.7 |
| Nov | 53 | 28 | 0.7 | 2 | 3.7 |
| Dec | 45 | 20 | 0.6 | 2 | 5.9 |
| Year | 64 | 37 | 16.7 | 40 | 34.1 |
Averages for 1991–2020 at Marston Fltr Plt, CO (5,610 ft), from NOAA NCEI U.S. Climate Normals. Normals describe the station; the farther a place is from it, and the bigger the difference in height, the more its weather can differ.
Floods, thunderstorm wind and lightning near Morrison
Since 1996, the National Weather Service has logged 44 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Morrison: 24 thunderstorm wind reports, 10 lightning strikes, 5 flash floods, 3 floods and 2 heavy rain events. They killed 2 people and injured 2, and the NWS estimated $8.5 million in property and crop damage. The strongest thunderstorm gust on record here was 78 mph, on June 6, 2020. June has had the most flash floods, 3 of 5. Of the 144 Colorado cities on this site with a flash flood on record, 53 have had fewer than Morrison.
July 27, 2007: lightning strike 2 miles from the centre of Morrison — 1 killed, $5,000 damage.
July 20, 2019: flash flood 9 miles from the centre of Morrison — 1 killed.
August 8, 2008: lightning strike 7 miles from the centre of Morrison — 1 injured, $1,000 damage.
Source: NOAA NCEI Storm Events Database, events whose starting point is on record, 1996 to June 30, 2026. Damage is the NWS estimate in the dollars of the year, not insured losses, and NWS notes that some reports are unverified.
Flood insurance claims, disaster declarations and FEMA risk ratings
Jefferson County, which includes Morrison, has been named in 15 federal disaster or emergency declarations since 1969, 6 of them major disasters (by incident: 5 fires, 5 floods, 2 biological emergencies, 2 snowstorms). The latest major disaster declaration was Severe Storms, Flooding, and Tornadoes, on August 25, 2023. FEMA's National Risk Index gives Jefferson County a Relatively High rating for natural hazard risk overall; by hazard: Very High for hail and lightning; Relatively High for tornadoes, inland flooding and strong wind; Relatively Low for heat waves. It models the county's expected loss from all 18 hazards it covers at $231.4 million a year, the highest of 64 Colorado counties; of the hazards above, the largest share, $77.4 million (33%), is from inland flooding.
Claims: FEMA, OpenFEMA Dataset FIMA NFIP Redacted Claims – v3, summed over ZIP codes; payments in the dollars of each year, not adjusted for inflation. Declarations: Disaster Declarations Summaries – v2, by county. Retrieved October 25, 2026. This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
Risk ratings: FEMA, National Risk Index county table, December 2025 (v1.20), retrieved October 26, 2026; ratings compare counties nationwide, are meant for planning and are no substitute for a local risk assessment. This product uses the Federal Emergency Management Agency's National Risk Index dataset API or downloadable datasets but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
What counts as a pass, the distances and the sources: how this storm history is built.