NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Newcastle, WY
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 Newcastle, Wyoming since records began in 1851. Since 1950, 18 tornadoes have touched down within 25 miles, 0 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 18
- EF3 or stronger
- 0
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
no recorded deaths
What the records show for Newcastle
The highest rating among the 18 tornadoes within 25 miles is F2, reached 3 times; the most recent, on July 2, 1964, came within 9 miles. Of the 18, none had a path within 5 miles of the city centre, and 7 have come since 2000. June has had the most tornadoes, 7. The most recent tornado was on June 23, 2023. Newcastle has more tornadoes within 25 miles than 62% of the 35 Wyoming cities on this site. Hail has been reported within 10 miles 23 times since 1983, with stones up to 2.75 inches (baseball size). Newcastle has more hail reports within 10 miles than 57% of the 35 Wyoming cities.
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Tornadoes within 25 miles of Newcastle
By decade
- 2020s1
- 2010s2
- 2000s4
- 1990s5
- 1960s2
- 1950s4
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Jul 2, 1964 | F2 | 9 mi | 0.1 mi | 0 / 0 |
| Jun 12, 1958 | F2 | 11 mi | 1 mi | 0 / 0 |
| May 28, 1953 | F2 | 10 mi | 38.2 mi | 0 / 0 |
| Jun 12, 2001 | F1 | 11 mi | 20 mi | 0 / 0 |
| Jun 12, 2001 | F1 | 25 mi | 27 mi | 0 / 0 |
| May 12, 1991 | F1 | 12 mi | 0.2 mi | 0 / 0 |
| Jul 14, 1963 | F1 | 12 mi | 7.9 mi | 0 / 0 |
| Jul 10, 1958 | F1 | 16 mi | 0.1 mi | 0 / 0 |
| Jun 23, 2023 | EF0 | 25 mi | 6 mi | 0 / 0 |
| Jul 3, 2019 | EF0 | 24 mi | 4.67 mi | 0 / 0 |
| Jun 22, 2010 | EF0 | 18 mi | 0.01 mi | 0 / 0 |
| Sep 14, 2004 | F0 | 21 mi | 0.5 mi | 0 / 0 |
The strongest 12 of 18, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Newcastle
The Storm Prediction Center has 23 hail reports within 10 miles of Newcastle since 1983, made on 22 separate days. Of these, 17 were 1 inch across or larger, and 3 reached 2 inches. The largest size, 2.75 inches (baseball size), was reported on 2 days, most recently July 9, 2021. The most recent report is from July 1, 2022. July has the most reports, 10.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Newcastle
The nearest NOAA station with 1991–2020 climate normals is Newcastle, WY, 15 miles northeast of Newcastle at 4,415 feet. July is the warmest, with an average high of 87°F and low of 60°F; January is the coolest, at 35°F and 14°F. May is the wettest at 2.9 inches of precipitation on average and January and December the driest at 0.5 inches; the year adds up to 17.1 inches over 45 days with at least a tenth of an inch. Highs reach 90°F on about 34 days a year, almost all from June to September. Lows fall below freezing on about 168 nights a year. Snowfall averages 38.9 inches a year, most of it in February. That 17.1 inches is more than at 25 of the 32 Wyoming stations used on this site (78%).
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 35 | 14 | 0.5 | 2 | 6.8 |
| Feb | 38 | 16 | 0.7 | 2 | 7.7 |
| Mar | 48 | 26 | 0.8 | 3 | 4.9 |
| Apr | 57 | 33 | 1.7 | 5 | 5.0 |
| May | 66 | 43 | 2.9 | 6 | 0.6 |
| Jun | 78 | 53 | 2.7 | 6 | 0.0 |
| Jul | 87 | 60 | 2.5 | 5 | 0.0 |
| Aug | 86 | 59 | 1.8 | 4 | 0.0 |
| Sep | 75 | 49 | 1.2 | 3 | 0.2 |
| Oct | 59 | 36 | 1.2 | 4 | 1.4 |
| Nov | 45 | 24 | 0.6 | 2 | 5.5 |
| Dec | 35 | 15 | 0.5 | 2 | 6.8 |
| Year | 59 | 36 | 17.1 | 45 | 38.9 |
Averages for 1991–2020 at Newcastle, WY (4,415 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 Newcastle
Since 1996, the National Weather Service has logged 11 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Newcastle: 11 thunderstorm wind reports. The strongest thunderstorm gust on record here was 70 mph, on June 16, 2007.
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
Weston County, which includes Newcastle, has been named in 7 federal disaster or emergency declarations since 1978, 4 of them major disasters (by incident: 2 biological emergencies, 2 fires, 2 severe storms, 1 flood). The latest major disaster declaration was Covid-19 Pandemic, on April 11, 2020. FEMA's National Risk Index gives Weston County a Very Low rating for natural hazard risk overall; by hazard: Relatively Moderate for hail; Very Low for tornadoes, inland flooding, strong wind, lightning and heat waves. It models the county's expected loss from all 18 hazards it covers at $4.7 million a year, the 21st highest of 23 Wyoming counties; of the hazards above, the largest share, $1.3 million (27%), 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.
Cities near Newcastle
- Custer, SD40 mi
- Sundance, WY44 mi
- Lead, SD50 mi
- Hot Springs, SD52 mi
- Moorcroft, WY55 mi
- Spearfish, SD59 mi
- Gillette, WY59 mi
- Black Hawk, SD63 mi
- Rapid City, SD64 mi
- Piedmont, SD65 mi
- Whitewood, SD65 mi
- Sturgis, SD67 mi
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