Brown snake lifespan and age in human years
Longest recorded 7 years
🏆 The longest-lived brown snake on record reached 7 years in captivity.
Brown snake (Storeria dekayi). The oldest known individual lived 7 years; this chart maps that record to a human age of 120. Most individuals live considerably shorter lives than the record.
- Reaches adulthood at about 2 years
- Adult weight about 45 g
- Incubation about 109 days
How old in human years?
Age
Brown snake age chart in human years
Shaded rows are equivalent to human age 60+.
| Brown snake | Human age | Stage |
|---|---|---|
| 1 yr | 9 | Child |
| 2 yr | 18 | Teen |
| 3 yr | 38 | Adult |
| 4 yr | 59 | Middle age |
| 5 yr | 79 | Elderly |
| 6 yr | 100 | Elderly |
| 7 yr | 120 | Elderly |
| 8 yr | 140 | Elderly |
| 9 yr | 161 | Elderly |
Brown snake profile
| Classification | Reptilia > Squamata > Colubridae |
|---|---|
| Scientific name | Storeria dekayi |
| Adult weight | about 45 g |
| Age of maturity | 2 years |
| Incubation | about 109 days |
| Longest recorded | 7 years (captivity) |
Sources
How we convert ages: method.
More Reptiles & amphibians
Red-eared sliderLifespan about 25 years
Reeves' turtleLifespan about 25 years
Tortoise (Hermann's, Greek, etc.)Lifespan about 60 years
Leopard geckoLifespan about 15 years
Bearded dragonLifespan about 9 years
Ball pythonLifespan about 20 years
Corn snakeLifespan about 15 years
AxolotlLifespan about 11 years
Pacman frog (horned frog)Lifespan about 10 years
Japanese firebelly newtLifespan up to 25 years (record)
Japanese rat snakeLifespan up to 13.1 years (record)
Japanese mamushiLifespan up to 13.8 years (record)