Arcata Weather in October
Average highs run from 63°F on October 1 to 60°F on October 31, and lows from 49°F to 45°F. Normal precipitation for the month is 2.31 in over about 9 wet days.
October day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
October at a glance
- Average high
- 62°F
- Average low
- 47°F
- Precipitation
- 2.31 in
- Record high
- 91°FOct 25, 2003
- Record low
- 29°FOct 31, 2002
- Chance of a freeze
- 0%
- Daylight
- 11 h 45 min to 10 h 27 min
- Cloud cover
- 40%
- Humidity
- 63%
- Dew point
- 40°F
- Wind
- 4.3 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Oct 1 | 63°F | 49°F | 75°F 2012 | 37°F 2002 | 22% | 0% |
| Oct 2 | 63°F | 48°F | 71°F 1997 | 34°F 2002 | 22% | 0% |
| Oct 3 | 63°F | 48°F | 82°F 2014 | 37°F 2002 | 22% | 0% |
| Oct 4 | 63°F | 48°F | 84°F 2015 | 35°F 2009 | 23% | 0% |
| Oct 5 | 63°F | 48°F | 82°F 2013 | 36°F 2007 | 23% | 0% |
| Oct 6 | 63°F | 48°F | 86°F 1992 | 36°F 2007 | 23% | 0% |
| Oct 7 | 63°F | 48°F | 82°F 1992 | 39°F 2007 | 24% | 0% |
| Oct 8 | 63°F | 48°F | 88°F 1996 | 40°F 2006 | 24% | 0% |
| Oct 9 | 63°F | 48°F | 77°F 2017 | 36°F 2001 | 24% | 0% |
| Oct 10 | 63°F | 47°F | 77°F 1992 | 36°F 2019 | 25% | 0% |
| Oct 11 | 63°F | 47°F | 79°F 2004 | 33°F 2002 | 25% | 0% |
| Oct 12 | 62°F | 47°F | 84°F 2004 | 32°F 2008 | 26% | 0% |
| Oct 13 | 62°F | 47°F | 86°F 2004 | 37°F 1994 | 26% | 0% |
| Oct 14 | 62°F | 47°F | 80°F 1995 | 37°F 2002 | 26% | 0% |
| Oct 15 | 62°F | 47°F | 79°F 2020 | 33°F 2018 | 27% | 0% |
| Oct 16 | 62°F | 47°F | 86°F 1999 | 35°F 1994 | 27% | 0% |
| Oct 17 | 62°F | 47°F | 80°F 1999 | 37°F 1998 | 28% | 0% |
| Oct 18 | 62°F | 47°F | 70°F 2012 | 37°F 2024 | 29% | 0% |
| Oct 19 | 62°F | 46°F | 75°F 1998 | 37°F 1999 | 29% | 0% |
| Oct 20 | 62°F | 46°F | 79°F 1998 | 35°F 1996 | 30% | 0% |
| Oct 21 | 61°F | 46°F | 81°F 1998 | 35°F 1999 | 30% | 0% |
| Oct 22 | 61°F | 46°F | 74°F 2008 | 36°F 1995 | 31% | 0% |
| Oct 23 | 61°F | 46°F | 77°F 2007 | 36°F 1994 | 32% | 0% |
| Oct 24 | 61°F | 46°F | 89°F 2019 | 34°F 2001 | 32% | 0% |
| Oct 25 | 61°F | 46°F | 91°F 2003 | 35°F 2001 | 33% | 0% |
| Oct 26 | 61°F | 46°F | 89°F 1993 | 36°F 2006 | 34% | 0% |
| Oct 27 | 61°F | 46°F | 88°F 2003 | 33°F 2002 | 34% | 0% |
| Oct 28 | 61°F | 46°F | 78°F 2003 | 34°F 2023 | 35% | 0% |
| Oct 29 | 60°F | 45°F | 74°F 1993 | 34°F 1994 | 36% | 0% |
| Oct 30 | 60°F | 45°F | 76°F 1993 | 32°F 2002 | 36% | 0% |
| Oct 31 | 60°F | 45°F | 75°F 2008 | 29°F 2002 | 37% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- October 1
- sunrise 7:13 AM, sunset 6:58 PM
- October 31
- sunrise 7:46 AM, sunset 6:13 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00024213 (Eureka WFO Woodley Island), public domain. Records: NOAA GHCN-Daily, station USW00024283, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.