Hail history for Grover, Colorado
NOAA hail reports in and within about 5 km (3 miles) of Grover since 1973, with preliminary reports to November 3, 2026.
Readout · Grover
- Last hail
- Sep 11, 2025
- 1.00 in, quarter size
- Hail days, last 5 years
- 2
- since Nov 3, 2021 · 2 reports
- Largest ever
- 3.00 in
- teacup · Jun 11, 1973
13 reports on 11 days since 1973 · #159 of 183 Colorado places
Hail map · Grover
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
Roof damage after hail? Get a free inspection
Hail bruises shingles and cracks seals in ways you can't see from the ground, and most insurers set a claim deadline after the storm. The latest hail report in Grover is from September 11, 2025. A local roofer can check and document it at no cost.
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What the record says about Grover
The latest hail report in and around Grover is from September 11, 2025, 1.00 in (quarter size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 2.00 in on July 11, 2025.
Over the 20 years 2006–2025, Grover logged 5 reports on 5 hail days, about 0.3 reports a year. That is 31% of the median Colorado town on this site (0.8 a year) and ranks #159 of 183 Colorado cities and towns on this site for all-time reports. Grover accounts for 1% of the 1,182 reports filed in Weld County.
15% of reports with a size were 2 inches (hen egg) or larger, against 8% for the median Colorado town on this site. The largest hail on record here is 3.00 in (teacup) on June 11, 1973.
The busiest year was 1983, with 4 reports on 2 days. Hail here peaks in June (46% of reports); 62% fall between April and June.
Reports a year 2006–2025 average
- Grover 0.3
- Weld County 33.4
- Median Colorado town on this site 0.8
Hail days 2006–2025
- Grover 5
- Weld County 201
- Median Colorado town on this site 11
Share 2 in or larger of sized reports
- Grover 15%
- Weld County 10%
- Median Colorado town on this site 8%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 1 | 1 | 2 | ||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 1 | 1 | |||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Sep 11, 2025 | 1 | 1.00 in | — |
| Jul 11, 2025 | 1 | 2.00 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jun 11, 1973 | 3.00 inteacup | — | Weld | 23:00 local · NCEI |
| Jul 11, 2025 | 2.00 inhen egg | 1.73 SE Grover | Weld | 17:00 local · NCEI |
| Aug 4, 2020 | 1.75 ingolf ball | 0.52 W Grover | Weld | 16:16 local · NCEI |
| Jun 4, 2009 | 1.75 ingolf ball | 2.32 NNW Grover | Weld | 18:42 local · NCEI |
| Jun 7, 1983 | 1.75 ingolf ball | — | Weld | 15:05 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 23%
- 1–2 in 8 62%
- 2 in + 2 15%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Sep 11, 2025 | 1.00 inquarter | 2.96 WNW Grover | Weld | 15:10 local · NCEI |
| Jul 11, 2025 | 2.00 inhen egg | 1.73 SE Grover | Weld | 17:00 local · NCEI |
| Aug 4, 2020 | 1.75 ingolf ball | 0.52 W Grover | Weld | 16:16 local · NCEI |
| Jun 4, 2009 | 1.75 ingolf ball | 2.32 NNW Grover | Weld | 18:42 local · NCEI |
| May 31, 2006 | 1.00 inquarter | 4 NW Grover | Weld | 14:14 local · NCEI |
| Aug 5, 2002 | 1.50 inping pong ball | 18 NNE Briggsdale | Weld | 17:20 local · NCEI |
| Aug 16, 1997 | 0.75 inpenny | Grover | Weld | 18:56 local · NCEI |
| Jun 7, 1983 | 1.75 ingolf ball | — | Weld | 15:05 local · NCEI |
| Jun 4, 1983 | 1.75 ingolf ball | — | Weld | 18:00 local · NCEI |
| Jun 4, 1983 | 1.75 ingolf ball | — | Weld | 17:45 local · NCEI |
| Jun 4, 1983 | 0.75 inpenny | — | Weld | 17:00 local · NCEI |
| May 10, 1977 | 0.75 inpenny | — | Weld | 16:40 local · NCEI |
Hail history near Grover
- Briggsdale 27 km · 12
- Raymer (New Raymer) 43 km · 21
- Nunn 50 km · 25
- Ault 53 km · 13
- Pierce 53 km · 13
- Eaton 56 km · 28
- Jackson Lake 57 km · 22
Questions about hail in Grover
How often does it hail in Grover, Colorado?
13 hail reports have been logged in and within about 5 km (3 miles) of Grover since 1973. Over the 20 years 2006–2025 that averages 0.3 reports a year. That ranks #159 of 183 Colorado places by number of reports.
When is hail season in Grover?
Most reports come in June, August, May. June alone accounts for 46% of all reports.
What is the largest hail recorded in Grover?
3.00 in (teacup size) on June 11, 1973. 15% of reports here were 2 inches or larger.
When did it last hail in Grover?
The most recent report in this data is from September 11, 2025 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Grover had in the last five years?
2 separate days with hail reports since November 3, 2021, adding up to 2 reports. The most recent was September 11, 2025.
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.