Skip to content
WeatherTotals
Get alerts

Rainfall totals Eureka, CA

For Eureka, the official rainfall for the year to date is 16.33 inches through Aug 21, 2026, according to the National Weather Service daily climate report. The normal for that date is 24.35 inches.

Data from Eureka Woodley Island, with records back to 1941.

Official rainfall report for Aug 21, 2026

National Weather Service daily climate report for Eureka, Aug 21, 2026
MeasuredNormal
Rain on Aug 21, 20260.00 inches0.01 inches
Month to date0.04 inches0.11 inches
Year to date16.33 inches24.35 inches
Record for Aug 210.16 inches2008

Source: National Weather Service daily climate report for EUREKA, issued the morning after Aug 21, 2026. The local National Weather Service office issues the daily climate report for the airport station the next morning, and that report is the official figure.

Days with measurable rain, 2026

Days with measurable rain in Eureka during 2026, newest first
DateRainfall
Aug 14, 20260.01 inches
Aug 13, 20260.01 inches
Aug 7, 20260.01 inches
Jul 29, 20260.01 inches
Jul 7, 20260.01 inches
Jun 26, 20260.08 inches
Jun 9, 20260.04 inches
Jun 8, 20260.55 inches
May 29, 20260.01 inches
May 27, 20260.06 inches
May 26, 20260.03 inches
May 25, 20260.21 inches
May 13, 20260.02 inches
May 12, 20260.03 inches
May 5, 20260.01 inches
May 4, 20260.02 inches
May 3, 20260.04 inches
May 1, 20260.01 inches
Apr 26, 20260.07 inches
Apr 21, 20260.23 inches
Apr 20, 20260.66 inches
Apr 15, 20260.21 inches
Apr 12, 20260.18 inches
Apr 11, 20260.17 inches
Apr 10, 20260.44 inches
Apr 9, 20260.36 inches
Apr 8, 20260.01 inches
Apr 2, 20260.05 inches
Apr 1, 20261.10 inches
Mar 25, 20260.06 inches

Through Aug 19, 2026, the GHCN-Daily station record shows 16.32 inches of measurable rain so far this year, falling over a 57-day span. Station observations are from GHCN-Daily, with a 1-3 day lag and quality checks by NOAA.

All-time rainfall records

All-time rainfall records for Eureka since 1941
Wettest day6.79 inchesDec 27, 2002
Wettest year67.21 inches1983
Driest year16.60 inches2013
Average year39.11 inches84 complete years on record
Rain days a year122average, 0.01 inch or more
Record begins194130,943 daily readings

Monthly rainfall normals

Average monthly rainfall for Eureka, 1991 to 2020
MonthJanFebMarAprMayJunJulAugSepOctNovDecYear
Inches6.675.645.753.641.660.700.180.180.682.314.898.1040.40

Averages are 1991-2020 normals from NCEI.

The daily climate report is issued by the local National Weather Service forecast office and delivered to this page by the Iowa Environmental Mesonet of Iowa State University. Under 17 U.S.C. 105, no copyright attaches to the government-produced figures on this page, including reports, alerts, station observations, and normals, which were created by the National Weather Service and other NOAA offices. The notice that 17 U.S.C. 403 requires appears in this sentence. It does not imply endorsement by or affiliation with those agencies. See: Data sources and attribution.

All California rainfall totals