Normandy Park Weather in December
Average highs run from 49°F on December 1 to 47°F on December 31, and lows from 38°F to 37°F. Normal precipitation for the month is 5.72 in over about 18 wet days.
December day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
December at a glance
- Average high
- 47°F
- Average low
- 37°F
- Precipitation
- 5.72 in
- Snowfall
- 1.7 in
- Record high
- 66°FDec 10, 2014
- Record low
- 6°FDec 30, 1968
- Chance of a freeze
- 94%
- Daylight
- 8 h 44 min to 8 h 31 min
- Cloud cover
- 75%
- Humidity
- 90%
- Dew point
- 36°F
- Wind
- 5.6 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 |
|---|---|---|---|---|---|---|
| Dec 1 | 49°F | 38°F | 57°F 1958 | 20°F 1985 | 60% | 3% |
| Dec 2 | 49°F | 38°F | 60°F 2020 | 25°F 1985 | 60% | 3% |
| Dec 3 | 48°F | 38°F | 60°F 1965 | 27°F 1994 | 60% | 3% |
| Dec 4 | 48°F | 38°F | 58°F 2023 | 21°F 1994 | 60% | 3% |
| Dec 5 | 48°F | 38°F | 59°F 2023 | 23°F 1956 | 60% | 3% |
| Dec 6 | 48°F | 38°F | 57°F 1965 | 19°F 1956 | 60% | 3% |
| Dec 7 | 48°F | 37°F | 58°F 2014 | 18°F 1972 | 60% | 3% |
| Dec 8 | 48°F | 37°F | 60°F 2015 | 13°F 1972 | 60% | 4% |
| Dec 9 | 47°F | 37°F | 61°F 2014 | 18°F 2009 | 60% | 4% |
| Dec 10 | 47°F | 37°F | 66°F 2014 | 16°F 2009 | 60% | 4% |
| Dec 11 | 47°F | 37°F | 58°F 2014 | 21°F 2009 | 60% | 4% |
| Dec 12 | 47°F | 37°F | 60°F 1960 | 22°F 1972 | 60% | 4% |
| Dec 13 | 47°F | 37°F | 59°F 1952 | 19°F 1972 | 60% | 4% |
| Dec 14 | 47°F | 37°F | 59°F 2002 | 22°F 2008 | 60% | 4% |
| Dec 15 | 47°F | 37°F | 63°F 1980 | 19°F 2008 | 61% | 4% |
| Dec 16 | 47°F | 37°F | 57°F 1974 | 10°F 1964 | 61% | 4% |
| Dec 17 | 47°F | 37°F | 57°F 1994 | 11°F 1964 | 61% | 4% |
| Dec 18 | 47°F | 37°F | 55°F 2024 | 18°F 1964 | 61% | 4% |
| Dec 19 | 46°F | 37°F | 56°F 1969 | 17°F 1949 | 61% | 5% |
| Dec 20 | 46°F | 37°F | 59°F 2018 | 14°F 1990 | 61% | 5% |
| Dec 21 | 46°F | 37°F | 59°F 2020 | 12°F 1990 | 61% | 5% |
| Dec 22 | 46°F | 37°F | 57°F 2005 | 14°F 1983 | 61% | 5% |
| Dec 23 | 46°F | 37°F | 58°F 1950 | 9°F 1983 | 61% | 5% |
| Dec 24 | 46°F | 37°F | 62°F 2005 | 16°F 1948 | 61% | 5% |
| Dec 25 | 46°F | 37°F | 60°F 1980 | 24°F 1995 | 61% | 5% |
| Dec 26 | 46°F | 37°F | 62°F 1980 | 20°F 2021 | 61% | 5% |
| Dec 27 | 46°F | 37°F | 58°F 1994 | 17°F 2021 | 61% | 5% |
| Dec 28 | 47°F | 37°F | 56°F 1980 | 12°F 1990 | 61% | 5% |
| Dec 29 | 47°F | 37°F | 63°F 2023 | 8°F 1968 | 61% | 5% |
| Dec 30 | 47°F | 37°F | 56°F 1958 | 6°F 1968 | 61% | 5% |
| Dec 31 | 47°F | 37°F | 56°F 1963 | 13°F 1968 | 61% | 5% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PST).
- December 1
- sunrise 7:36 AM, sunset 4:20 PM
- December 31
- sunrise 7:57 AM, sunset 4:28 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00024233 (Seattle Tacoma Intl AP), public domain. Records: NOAA GHCN-Daily, station USW00024233, 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.