11 days with hail of 1 inch or larger have been logged in 80004 (Arvada) since 1996, 1.6 times the Jefferson County ZIP average of 6.7.

Area name is an approximation from Census ZCTA data. Method and limits.

Largest storm: June 4, 2008

1.75-inch (golf ball) hail near Arvada. Ping-pong-ball hail around Arvada damaged cars while the same system spread wind, hail and tornadoes over the northeast plains. (NOAA NCEI event 101839, episode 17614)

80004 vs. the Jefferson County average

Since 1996	80004	Jefferson Co. ZIP avg. (26)
Days with 1 in.+ hail	11	6.7
Reports 1 in.+	20	10.5
Reports 1.75 in.+	1
All reports	25
Last report	June 29, 2024

Hail days here run 1.6 times the county ZIP average.

Homes in 80004

Housing (2020-2024)	80004	Jefferson Co.
Median year built	1974	1981
Built before 1980	65.3%	48.5%
Built before 2000	90%
Owner-occupied	73.6%	69.6%
Housing units	15,450

Source: Census ACS 5-year, 2020-2024.

Every one of the 20 reports here was at least the 1-inch size that an IIBEC table ties to damage on 3-tab shingles; 1 reached 1.75 inches. Half the homes here were built by 1974, so the date your roof was last replaced tells you more than the age of the house. (IIBEC)

Reports by decade

Decade	All	1 in.+	1.75 in.+
1996-99	0	0	0
2000s	11	10	1
2010s	12	9	0
2020s	2	1	0

Every 1 in.+ hail day in 80004

2008: June 4 (1.75); 2009: June 13 (1), June 14 (1), July 20 (1.25), Aug. 5 (1); 2014: May 7 (1), July 7 (1.25); 2015: June 3 (1), June 4 (1); 2016: May 24 (1); 2024: June 29 (1).

10 largest reports

Date	Hail	NCEI
June 4, 2008	1.75 in. (golf ball)	101839
June 4, 2008	1.5 in. (ping pong ball)	101837
July 7, 2014	1.25 in. (half dollar)	531614
July 7, 2014	1.25 in. (half dollar)	531617
July 20, 2009	1.25 in. (half dollar)	182076
June 29, 2024	1 in. (quarter)	1178756
May 24, 2016	1 in. (quarter)	626465
June 4, 2015	1 in. (quarter)	570454
June 4, 2015	1 in. (quarter)	570455
June 4, 2015	1 in. (quarter)	570457