Whatcom County Weather in October
Average highs run from 63°F on October 1 to 49°F on October 31, and lows from 44°F to 37°F. Normal precipitation for the month is 10.52 in over about 17 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
- 56°F
- Average low
- 41°F
- Precipitation
- 10.52 in
- Record high
- 80°FOct 16, 2022
- Record low
- 20°FOct 31, 1984
- Chance of a freeze
- 57%
- Daylight
- 11 h 39 min to 9 h 55 min
- Cloud cover
- 70%
- Humidity
- 85%
- Dew point
- 40°F
- Wind
- 3.6 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 | 44°F | 78°F 1987 | 30°F 1950 | 45% | 0% |
| Oct 2 | 62°F | 44°F | 75°F 2022 | 27°F 1950 | 46% | 0% |
| Oct 3 | 62°F | 44°F | 76°F 2022 | 33°F 1999 | 47% | 0% |
| Oct 4 | 62°F | 44°F | 73°F 1952 | 31°F 1999 | 47% | 0% |
| Oct 5 | 61°F | 43°F | 78°F 1980 | 33°F 2012 | 48% | 0% |
| Oct 6 | 61°F | 43°F | 75°F 1952 | 31°F 1974 | 49% | 0% |
| Oct 7 | 60°F | 43°F | 77°F 2023 | 31°F 1949 | 49% | 0% |
| Oct 8 | 60°F | 43°F | 73°F 1951 | 30°F 1985 | 50% | 0% |
| Oct 9 | 59°F | 42°F | 73°F 1951 | 31°F 1960 | 51% | 0% |
| Oct 10 | 59°F | 42°F | 75°F 1988 | 30°F 2008 | 52% | 0% |
| Oct 11 | 58°F | 42°F | 75°F 1991 | 26°F 2008 | 52% | 0% |
| Oct 12 | 58°F | 42°F | 68°F 1976 | 25°F 2009 | 53% | 0% |
| Oct 13 | 57°F | 41°F | 74°F 2022 | 27°F 1966 | 54% | 0% |
| Oct 14 | 57°F | 41°F | 76°F 1961 | 29°F 1969 | 54% | 0% |
| Oct 15 | 56°F | 41°F | 72°F 2022 | 28°F 1966 | 55% | 0% |
| Oct 16 | 56°F | 41°F | 80°F 2022 | 30°F 1984 | 56% | 0% |
| Oct 17 | 55°F | 40°F | 70°F 2018 | 27°F 1949 | 57% | 0% |
| Oct 18 | 55°F | 40°F | 69°F 1960 | 30°F 1982 | 57% | 0% |
| Oct 19 | 54°F | 40°F | 75°F 2014 | 25°F 1949 | 58% | 0% |
| Oct 20 | 54°F | 40°F | 67°F 1987 | 24°F 1949 | 59% | 0% |
| Oct 21 | 53°F | 39°F | 69°F 2021 | 28°F 1949 | 59% | 0% |
| Oct 22 | 53°F | 39°F | 68°F 1965 | 29°F 1984 | 60% | 0% |
| Oct 23 | 52°F | 39°F | 69°F 1982 | 30°F 1953 | 61% | 0% |
| Oct 24 | 52°F | 39°F | 72°F 1957 | 27°F 1954 | 61% | 1% |
| Oct 25 | 51°F | 38°F | 67°F 1965 | 25°F 1954 | 62% | 1% |
| Oct 26 | 51°F | 38°F | 67°F 1965 | 28°F 1954 | 63% | 1% |
| Oct 27 | 51°F | 38°F | 65°F 1952 | 27°F 1970 | 63% | 1% |
| Oct 28 | 50°F | 38°F | 69°F 1968 | 23°F 2023 | 64% | 1% |
| Oct 29 | 50°F | 37°F | 70°F 1968 | 24°F 2023 | 64% | 1% |
| Oct 30 | 49°F | 37°F | 74°F 1958 | 23°F 2002 | 65% | 1% |
| Oct 31 | 49°F | 37°F | 67°F 1958 | 20°F 1984 | 65% | 1% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- October 1
- sunrise 7:07 AM, sunset 6:46 PM
- October 31
- sunrise 7:53 AM, sunset 5:48 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00458715 (Upper Baker Dam), public domain. Records: NOAA GHCN-Daily, station USW00024217, 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.