Osino climate

Osino Weather in December

NOAA 1991-2020 normals for Ryndon, 5.9 km from Osino

Average highs run from 41°F on December 1 to 36°F on December 31, and lows from 17°F to 12°F. Normal precipitation for the month is 1.55 in over about 8 wet days.

December day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Osino, in °F, with the record for each date.-50-250255075151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
38°F
Average low
14°F
Precipitation
1.55 in
Snowfall
10.6 in
Record high
65°FDec 1, 1995
Record low
-41°FDec 25, 1924
Chance of a freeze
100%
Daylight
9 h 27 min to 9 h 17 min
Cloud cover
64%
Humidity
77%
Dew point
17°F
Wind
7.6 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.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Dec 141°F17°F65°F 1995-12°F 193120%17%
Dec 241°F17°F61°F 1894-12°F 193120%17%
Dec 341°F17°F63°F 1940-7°F 189721%18%
Dec 440°F16°F64°F 1940-9°F 189721%18%
Dec 540°F16°F61°F 1940-7°F 193321%19%
Dec 639°F16°F63°F 1981-20°F 189121%19%
Dec 739°F16°F60°F 1940-26°F 189122%20%
Dec 839°F16°F61°F 1913-21°F 195122%20%
Dec 939°F16°F62°F 1981-26°F 191922%21%
Dec 1038°F15°F62°F 2025-25°F 197222%21%
Dec 1138°F15°F61°F 2025-28°F 197223%22%
Dec 1238°F15°F60°F 1894-38°F 193223%22%
Dec 1338°F15°F61°F 1929-35°F 193223%23%
Dec 1437°F15°F64°F 1929-25°F 193224%24%
Dec 1537°F14°F60°F 1929-24°F 193224%24%
Dec 1637°F14°F62°F 1939-21°F 193124%25%
Dec 1737°F14°F59°F 2025-12°F 198425%25%
Dec 1837°F14°F60°F 1917-18°F 189525%25%
Dec 1937°F14°F62°F 1917-28°F 192425%26%
Dec 2037°F14°F57°F 1958-20°F 192425%26%
Dec 2137°F13°F60°F 2025-24°F 199026%27%
Dec 2237°F13°F57°F 1964-33°F 199026%27%
Dec 2336°F13°F56°F 1964-30°F 199026%27%
Dec 2436°F13°F56°F 1910-38°F 192426%27%
Dec 2536°F13°F53°F 1946-41°F 192426%28%
Dec 2636°F13°F57°F 1933-40°F 192426%28%
Dec 2736°F12°F56°F 1917-25°F 192426%28%
Dec 2836°F12°F58°F 1980-16°F 191326%28%
Dec 2936°F12°F60°F 1917-24°F 189526%28%
Dec 3036°F12°F62°F 1917-25°F 199026%28%
Dec 3136°F12°F60°F 1917-19°F 191626%28%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Osino, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PST).

December 1
sunrise 6:48 AM, sunset 4:15 PM
December 31
sunrise 7:07 AM, sunset 4:24 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00267188 (Ryndon), public domain. Records: NOAA GHCN-Daily, station USW00024121, 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.