NWS La Crosse Severe Thunderstorm Reference Table (Hail)

Hail smaller than 1" in diameter is considered SUB-SEVERE. Severe hail starts at 1" and larger.

SEVERE SIZED HAIL
Hail Diameter (In)	Description
1/4"	Pea size
1/2"	Reg.M&M candy or Mothball size
DO NOT USE MARBLE SIZE (too many sizes)
7/10"	Dime size
3/4"	Penny size
7/8"	Nickel size
Hail Diameter (In)	Description
1"	Quarter size
1 1/4"	1/2 Dollar size
1 1/2"	Ping Pong Ball size or Walnut size
1 3/4"	Golf Ball size
2"	Hen Egg size or Lime size
2 1/2"	Tennis ball size
2 3/4"	Baseball size
4"	Grapefruit size
4 1/2"	Softball size