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Snakes and spiders in Monterey County, California

Monterey County, home of Salinas, has 16 snake and 55 spider species on record, from 1,537 licensed snake and 531 spider records. Venomous species here: the western rattlesnake and the western black widow.

16snake species
55spider species
2venomous
Bitten in Monterey County? Call 911 for a venomous snakebite or any bite with trouble breathing. For advice on any bite or sting, call Poison Help at 1-800-222-1222 (free, 24/7, U.S.-wide). Do not cut the wound, suck out venom or use a tourniquet. General information, not medical advice. Do not handle or try to identify a snake or spider by this page; if unsure, treat it as venomous.

Are there venomous snakes or spiders in Monterey County?

Yes. The western rattlesnake: 82 licensed records, 2% of all California records of it. The western black widow: 17 licensed records, 1% of all California records of it.

What snakes are in Monterey County?

In all, 16 snake species are on the Monterey County list. The most recorded are the western terrestrial garter snake (374), the western aquatic garter snake (285) and the gopher snake (231).

#SpeciesRecordsShare of California records
1Western terrestrial garter snake
Thamnophis elegans
3742%
2Western aquatic garter snake
Thamnophis couchii
2858%
3Gopher snake
Pituophis catenifer
2313%
4Aquatic garter snake
Thamnophis atratus
1263%
5Two-striped garter snake
Thamnophis hammondii
1056%
6Western rattlesnake venomous
Crotalus oreganus
822%
7Common garter snake
Thamnophis sirtalis
711%
8Ring-necked snake
Diadophis punctatus
603%
9California kingsnake
Lampropeltis californiae
552%
10Sharp-tailed snake
Contia tenuis
394%
11Eastern racer
Coluber constrictor
373%
12Striped racer
Masticophis lateralis
343%
13Northern rubber boa
Charina bottae
112%
14California mountain kingsnake
Lampropeltis zonata
82%
15Coachwhip
Masticophis flagellum
71%
16Coast nightsnake
Hypsiglena ochrorhynchus
——
Source: GBIF records located in Monterey County (GADM level 2), read 2026-09-29. Listed from records under any license; counts are CC0/CC BY only.

When are snakes out in Monterey County?

Observation records of snakes in Monterey County run mostly March through October, peaking in April with 20% of them; across California the peak is May.

January: 1 observation record (0%)JanFebruary: 6 observation records (2%)FebMarch: 34 observation records (11%)Mar11%April: 61 observation records (20%)Apr20%May: 59 observation records (20%)May20%June: 52 observation records (17%)Jun17%July: 30 observation records (10%)Jul10%August: 15 observation records (5%)AugSeptember: 18 observation records (6%)SepOctober: 14 observation records (5%)OctNovember: 9 observation records (3%)NovDecember: 2 observation records (1%)Dec

What spiders are in Monterey County?

In all, 55 spider species are on the Monterey County list. The most recorded are Steatoda nobilis (38), Aliatypus coylei (22) and the Johnson jumper (17). Monterey County holds more than half of all California records of Metepeira gosoga and Habronattus peckhami.

#SpeciesRecordsShare of California records
1
Steatoda nobilis
382%
2
Aliatypus coylei
2245%
3Johnson jumper
Phidippus johnsoni
172%
4Western black widow venomous
Latrodectus hesperus
171%
5Gray house spider
Badumna longinqua
134%
6
Habronattus amicus
1213%
7Bay Area blonde
Aphonopelma iodius
113%
8Goldenrod crab spider
Misumena vatia
115%
9
Dysdera crocata
102%
10Koch's wolf spider
Alopecosa kochi
101%
11
Metepeira gosoga
1067%
12
Pelegrina aeneola
1010%
13False black widow
Steatoda grossa
91%
14
Habronattus peckhami
960%
15Northern orb weaver
Aculepeira packardi
924%
16Western lynx spider
Oxyopes scalaris
91%
17Buttonhook leafbeetle jumping spider
Sassacus vitis
81%
18
Colonus hesperus
81%
19
Cyclosa turbinata
85%
20
Habronattus tarsalis
84%
21Ribbon jumping spider
Metacyrba taeniola
83%
22
Anachemmis linsdalei
720%
23
Drassyllus insularis
74%
24Longbodied cellar spider
Pholcus phalangioides
71%
25
Phidippus kastoni
723%
26Beach-dwelling jumping spider
Terralonus californicus
67%
27Tawny dwarf tarantula
Megahexura fulva
67%
28West coast laceweaver
Callobius severus
629%
29
Phanias albeolus
519%
30Banded garden spider
Argiope trifasciata
41%
31McCook's split wolf spider
Schizocosa mccooki
42%
32
Schizocosa maxima
415%
33Sixspotted orbweaver
Araniella displicata
42%
34Green lynx spider
Peucetia viridans
31%
35Hairy tufted jumping spider
Phidippus comatus
32%
36Sierra dome spider
Neriene litigiosa
34%
37Cone-shaped orbweaver
Cyclosa conica
22%
38
Habronattus klauseri
26%
39
Habronattus mustaciatus
29%
40Marbled cellar spider
Holocnemus pluchei
20%
41
Sergiolus montanus
23%
42Zebra spider
Salticus scenicus
21%
43
Araneus andrewsi
11%
44Black-and-yellow argiope
Argiope aurantia
11%
45California funnel-web spider
Calisoga longitarsis
11%
46California turret spider
Atypoides riversi
10%
47
Castianeira thalia
13%
48
Diaea livens
12%
49
Phidippus nikites
13%
50Silver argiope
Argiope argentata
10%
51Arabesque orbweaver
Neoscona arabesca
——
52Brilliant jumping spider
Phidippus clarus
——
53
Mexigonus morosus
——
54
Segestria pacifica
——
55Striped lynx spider
Oxyopes salticus
——
Source: GBIF records located in Monterey County (GADM level 2), read 2026-09-29. Listed from records under any license; counts are CC0/CC BY only.

When are spiders out in Monterey County?

Observation records of spiders in Monterey County run through most of the year, peaking in October with 17% of them; across California the peak is April.

January: 20 observation records (7%)Jan7%February: 10 observation records (3%)FebMarch: 21 observation records (7%)Mar7%April: 26 observation records (9%)Apr9%May: 16 observation records (5%)MayJune: 44 observation records (15%)Jun15%July: 31 observation records (10%)Jul10%August: 17 observation records (6%)AugSeptember: 32 observation records (11%)Sep11%October: 49 observation records (17%)Oct17%November: 23 observation records (8%)Nov8%December: 7 observation records (2%)Dec

What stands out in Monterey County

Species for which Monterey County holds a large share of all California records: Aliatypus coylei, 45% (22 of 49).

Common in California, not on the Monterey County list

Among the snakes most recorded across California, these do not reach the county list: the sidewinder (1,923 statewide), the western shovel-nosed snake (1,482 statewide) and the glossy snake (1,425 statewide). Few records here can mean the species is rare in the county, or that few people have looked.

Among the spiders most recorded across California, these do not reach the county list: the bold jumper (2,606 statewide), the half-edged wall jumping spider (2,178 statewide), Habronattus pyrrithrix (800 statewide) and the brown widow (776 statewide). Few records here can mean the species is rare in the county, or that few people have looked.

Harmless lookalikes in Monterey County

Rattlesnakes are on the county list, and so are harmless species often taken for them: the gopher snake. Coral snakes are not on the California list, but GBIF holds 3 coral snake records of any license in California (Sonoran coralsnake 3): treat any snake like this as venomous until identified. Harmless species often taken for them here: the California mountain kingsnake. Widow spiders are on the county list, and so are harmless species often taken for them: the false black widow. No recluse spiders reach the county list, but the desert recluse is on the California list: treat any spider like it as venomous until identified. Harmless species often taken for them here: the longbodied cellar spider.

Monterey County among California counties

By licensed snake records Monterey County ranks 13th of 58 California counties with any.

Other California counties with their own page: San Diego County, Lassen County, Shasta County, Riverside County, San Bernardino County, Humboldt County, Sonoma County and San Mateo County.

The whole state: venomous species in California, all snakes, all spiders.

GBIF records read 2026-09-29. Listed: any license. Counted: CC0/CC BY only. How we count.

About these numbers

A species is listed for a state once GBIF holds at least 10 records of it located inside the state by coordinates, under any license. Every count, share, month and county shown is computed only from records published under CC0 or CC BY, so a listed species can show few or no counted records. Monthly patterns show when people record snakes and spiders, which also reflects when people are outdoors. Venomous status follows taxonomy: pit vipers and coral snakes; widow and recluse spiders; the Arizona bark scorpion. Records filed under older names count for the species they belong to today. Full methodology.