Hail history for Geyser, Montana
NOAA hail reports in and within about 5 km (3 miles) of Geyser since 1982, with preliminary reports to November 3, 2026.
Readout · Geyser
- Last hail
- Sep 6, 2026
- 1.00 in, quarter size · preliminary
- Hail days, last 5 years
- 1
- since Nov 3, 2021 · 1 report
- Largest ever
- 2.50 in
- tennis ball · Aug 11, 1982
12 reports on 12 days since 1982 · #80 of 111 Montana places
Hail map · Geyser
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
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What the record says about Geyser
The latest hail report in and around Geyser is from September 6, 2026, 1.00 in (quarter size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 1.00 in on September 6, 2026.
Over the 20 years 2006–2025, Geyser logged 6 reports on 6 hail days, about 0.3 reports a year. That is 33% less than the median Montana town on this site (0.5 a year) and ranks #80 of 111 Montana cities and towns on this site for all-time reports. Geyser accounts for 8% of the 159 reports filed in Judith Basin County.
17% of reports with a size were 2 inches (hen egg) or larger, against 8% for the median Montana town on this site. The largest hail on record here is 2.50 in (tennis ball) on August 11, 1982.
The busiest year was 2016, with 3 reports on 3 days. Hail here peaks in June (33% of reports); 33% fall between April and June.
Reports a year 2006–2025 average
- Geyser 0.3
- Judith Basin County 3.1
- Median Montana town on this site 0.5
Hail days 2006–2025
- Geyser 6
- Judith Basin County 36
- Median Montana town on this site 7
Share 2 in or larger of sized reports
- Geyser 17%
- Judith Basin County 8%
- Median Montana town on this site 8%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | |||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 1 | 1 | |||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 1 | 1 | |||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Sep 6, 2026 | 1 | 1.00 in | View |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Aug 11, 1982 | 2.50 intennis ball | — | Judith Basin | 17:20 local · NCEI |
| Jun 24, 2007 | 2.00 inhen egg | Geyser | Judith Basin | 19:20 local · NCEI |
| Jun 9, 2016 | 1.25 inhalf dollar | 3 W Geyser | Judith Basin | 12:45 local · NCEI |
| Sep 6, 2026 | 1.00 inquarter | 4 SSW Geyser | Judith Basin | 01:08 UTC · NWS prelim. |
| Aug 20, 2020 | 1.00 inquarter | 1.46 NNE Geyser | Judith Basin | 16:26 local · NCEI |
Sizes filed before 1996 are often rough estimates (round numbers like 7.00 or 8.00 in) without an exact spot; they are shown as NOAA filed them.
Size of every report
- Under 1 in 3 25%
- 1–2 in 7 58%
- 2 in + 2 17%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Sep 6, 2026 | 1.00 inquarter | 4 SSW Geyser | Judith Basin | 01:08 UTC · NWS prelim. |
| Aug 20, 2020 | 1.00 inquarter | 1.46 NNE Geyser | Judith Basin | 16:26 local · NCEI |
| Jun 4, 2018 | 1.00 inquarter | Geyser | Judith Basin | 15:40 local · NCEI |
| Aug 9, 2016 | 1.00 inquarter | 3 SE Geyser | Judith Basin | 17:54 local · NCEI |
| Jul 18, 2016 | 1.00 inquarter | 3 SE Geyser | Judith Basin | 18:30 local · NCEI |
| Jun 9, 2016 | 1.25 inhalf dollar | 3 W Geyser | Judith Basin | 12:45 local · NCEI |
| Jun 24, 2007 | 2.00 inhen egg | Geyser | Judith Basin | 19:20 local · NCEI |
| Jul 13, 2005 | 0.88 innickel | 1 E Geyser | Judith Basin | 17:35 local · NCEI |
| Aug 3, 2004 | 0.88 innickel | Geyser | Judith Basin | 16:05 local · NCEI |
| Jun 20, 2003 | 0.75 inpenny | 1 S Geyser | Judith Basin | 13:26 local · NCEI |
| Jul 5, 2000 | 1.00 inquarter | Geyser | Judith Basin | 20:32 local · NCEI |
| Aug 11, 1982 | 2.50 intennis ball | — | Judith Basin | 17:20 local · NCEI |
Hail history near Geyser
- Raynesford 18 km · 19
- Stanford 24 km · 20
- Monarch 32 km · 12
- Geraldine 41 km · 12
- Denton 42 km · 11
- Hobson 55 km · 25
- Malmstrom AFB 59 km · 13
Questions about hail in Geyser
How often does it hail in Geyser, Montana?
12 hail reports have been logged in and within about 5 km (3 miles) of Geyser since 1982. Over the 20 years 2006–2025 that averages 0.3 reports a year. That ranks #80 of 111 Montana places by number of reports.
When is hail season in Geyser?
Most reports come in June, August, July. June alone accounts for 33% of all reports.
What is the largest hail recorded in Geyser?
2.50 in (tennis ball size) on August 11, 1982. 17% of reports here were 2 inches or larger.
When did it last hail in Geyser?
The most recent report in this data is from September 6, 2026 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Geyser had in the last five years?
1 separate days with hail reports since November 3, 2021, adding up to 1 reports. The most recent was September 6, 2026.
Where does this hail data come from?
Hail reports come from the NOAA NCEI Storm Events Database, which the National Weather Service compiles from spotter, public, law enforcement and media reports. Recent days use preliminary NWS Local Storm Reports via the Iowa Environmental Mesonet until NOAA publishes final data. Only reported hail is counted, so areas with fewer people tend to have fewer reports.