Hail History

Hail history for Coal Creek, Colorado

NOAA hail reports in and within about 5 km (3 miles) of Coal Creek since 1962, with preliminary reports to November 3, 2026.

Readout · Coal Creek

Last hail
Aug 23, 2025
0.75 in, penny size
Hail days, last 5 years
2
since Nov 3, 2021 · 2 reports
Largest ever
2.00 in
hen egg · Jun 22, 2009

21 reports on 15 days since 1962 · #119 of 183 Colorado places

Hail map · Coal Creek

Coal Creek Arvada Louisville Golden Genesee Westminster 20 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
21 most recent reports with a location; Jefferson County is shaded. Open street map

For homeowners

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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 Coal Creek is from August 23, 2025. A local roofer can check and document it at no cost.

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What the record says about Coal Creek

The latest hail report in and around Coal Creek is from August 23, 2025, 0.75 in (penny size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.00 in on June 21, 2023.

Over the 20 years 2006–2025, Coal Creek logged 15 reports on 10 hail days, about 0.8 reports a year. That is about the same as the median Colorado town on this site (0.8 a year) and ranks #119 of 183 Colorado cities and towns on this site for all-time reports. Coal Creek accounts for 4% of the 530 reports filed in Jefferson County.

14% 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 2.00 in (hen egg) on June 22, 2009 near 2.99 WSW Crescent.

Reports were down 85% in 2016–2025 (2) compared with 2006–2015 (13). The busiest year was 2009, with 4 reports on 2 days. Hail here peaks in July (38% of reports); 24% fall between April and June.

Reports a year 2006–2025 average

  • Coal Creek 0.8
  • Jefferson County 13.8
  • Median Colorado town on this site 0.8

Hail days 2006–2025

  • Coal Creek 10
  • Jefferson County 84
  • Median Colorado town on this site 11

Share 2 in or larger of sized reports

  • Coal Creek 14%
  • Jefferson County 5%
  • Median Colorado town on this site 8%

Hail over time

01234 1962: 1 reports, largest 0.75 in 1970 1980 1989: 1 reports, largest 0.75 in 1990 2000 2001: 1 reports, largest 0.75 in 2002: 2 reports, largest 2.00 in 2004: 1 reports, largest 0.75 in 2007: 3 reports, largest 2.00 in 2009: 4 reports, largest 2.00 in 2010 2011: 2 reports, largest 0.88 in 2014: 2 reports, largest 1.50 in 2015: 2 reports, largest 0.88 in 2020 2023: 1 reports, largest 1.00 in 2025: 1 reports, largest 0.75 in
Reports per year, 1962–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
02468 Jan Feb Mar Apr May: 1 reports (5%) May June: 4 reports (19%) Jun July: 8 reports (38%) Jul August: 5 reports (24%) Aug September: 3 reports (14%) Sep Oct Nov Dec
All 21 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 0
2025 1 1
2024 0
2023 1 1
2022 0
2021 0
2020 0
2019 0
2018 0
2017 0

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Aug 23, 2025 1 0.75 in —
Jun 21, 2023 1 1.00 in —

Largest hail on record

Largest hail reports in Coal Creek
Date Size Location County Time · source
Jun 22, 2009 2.00 inhen egg 2.99 WSW Crescent Boulder 21:15 local · NCEI
Jul 3, 2007 2.00 inhen egg 5.3 E Rollins Gilpin 16:01 local · NCEI
Aug 27, 2002 2.00 inhen egg 11 NW Golden Jefferson 13:50 local · NCEI
Jul 3, 2014 1.50 inping pong ball 13.74 NW Golden Jefferson 17:16 local · NCEI
Sep 13, 2009 1.25 inhalf dollar 13.4 NW Golden Jefferson 15:45 local · NCEI

Size of every report

Most recent reports

Most recent hail reports in Coal Creek
Date Size Location County Time · source
Aug 23, 2025 0.75 inpenny 5.3 E Rollinsville Gilpin 14:54 local · NCEI
Jun 21, 2023 1.00 inquarter 11.68 W Jefferson Co Arpt Jefferson 17:36 local · NCEI
Jun 4, 2015 0.88 innickel 11.4 NW Golden Jefferson 18:00 local · NCEI
May 1, 2015 0.75 inpenny 13.74 NW Golden Jefferson 13:40 local · NCEI
Jul 3, 2014 1.00 inquarter 9.29 NW Golden Jefferson 17:30 local · NCEI
Jul 3, 2014 1.50 inping pong ball 13.74 NW Golden Jefferson 17:16 local · NCEI
Aug 16, 2011 0.88 innickel 13.4 NW Golden Jefferson 12:20 local · NCEI
Jul 19, 2011 0.75 inpenny 10.62 W Jefferson Co Arpt Jefferson 14:50 local · NCEI
Sep 13, 2009 0.75 inpenny 13.4 NW Golden Jefferson 15:50 local · NCEI
Sep 13, 2009 1.00 inquarter 12.73 NW Golden Jefferson 15:50 local · NCEI
Sep 13, 2009 1.25 inhalf dollar 13.4 NW Golden Jefferson 15:45 local · NCEI
Jun 22, 2009 2.00 inhen egg 2.99 WSW Crescent Boulder 21:15 local · NCEI

Hail history near Coal Creek

Questions about hail in Coal Creek

How often does it hail in Coal Creek, Colorado?

21 hail reports have been logged in and within about 5 km (3 miles) of Coal Creek since 1962. Over the 20 years 2006–2025 that averages 0.8 reports a year. That ranks #119 of 183 Colorado places by number of reports.

When is hail season in Coal Creek?

Most reports come in July, August, June. July alone accounts for 38% of all reports.

What is the largest hail recorded in Coal Creek?

2.00 in (hen egg size) on June 22, 2009 near 2.99 WSW Crescent. 14% of reports here were 2 inches or larger.

When did it last hail in Coal Creek?

The most recent report in this data is from August 23, 2025 (0.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

How many hail storms has Coal Creek 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 August 23, 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.