Hyampom

History

The name "Hyampom" is said to have derived from a Wintu language term , meaning "slippery place." Hyampom was home to the Whilkut, Chimariko, and Northern Wintun Native American tribes. The explorer Jedediah Strong Smith visited Hyampom in April 1828. The first non-native settler in the area was Hank Young, who moved to Hyampom on January 12, 1855.

Geography

According to the United States Census Bureau, the CDP covers an area of , all land. This region experiences warm and dry summers, with no average monthly temperature above 71.6 °F. According to the Köppen climate classification system, Hyampom has a warm-summer Mediterranean climate, abbreviated "Csb" on climate maps. Despite the warm-summer classification, daily highs reach above 90 degrees Fahrenheit on almost all days in summer, but the marine-influenced night temperatures are almost always below 60 degrees and most often around 50. There is snow in the winter, but the elevation is too low for significant snowfall. The nearest large town, Hayfork, which is 700 feet above Hyampom at 2,200 feet, gets approximately 20 to 25 inches of snow per year, and the nearest comparable weather station, at Big Flat on the Trinity River, gets 6.7 inches per year. Precipitation totals around 40 to 45 inches a year.

Race & ethnicity

Most-observed species

• Steller's Jay

  Cyanocitta stelleri (Gmelin, 1788) · Aves
  260
• Dark-eyed Junco

  Junco hyemalis (Linnaeus, 1758) · Aves
  252
• Western Tanager

  Piranga ludoviciana (A.Wilson, 1811) · Aves
  190
• Red-breasted Nuthatch

  Sitta canadensis Linnaeus, 1766 · Aves
  188
• Spotted Towhee

  Pipilo maculatus Swainson, 1827 · Aves
  180
• Hermit Warbler

  Setophaga occidentalis (J.K.Townsend, 1837) · Aves
  174
• Northern Flicker

  Colaptes auratus (Linnaeus, 1758) · Aves
  142
• Lazuli Bunting

  Passerina amoena (Say, 1822) · Aves
  142

Most recent

• M 2.8 — 2026-09-21
  19 km WSW of Petrolia, CA
• M 2.54 — 2026-09-18
  19 km W of Petrolia, CA
• M 3.52 — 2026-09-16
  20 km WSW of Petrolia, CA
• M 2.92 — 2026-09-15
  17 km WSW of Petrolia, CA
• M 2.63 — 2026-09-15
  7 km E of Hydesville, CA
• M 3.63 — 2026-09-10
  21 km W of Petrolia, CA