Cottage Grove weather in December: Cottage Grove, Oregon: normal highs, lows, rain and records for December
Cottage Grove in December has a normal high of 47°F and a normal low of 33°F, a daily mean of 40°F, falling from 49°F on the 1st to 46°F by the 31st. Measurable precipitation falls on 22 days in a normal December, 7.57 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 8°C and low of 1°C, 192 mm of precipitation and 1 cm of snow in December.
- NOAA stationCottage Grove (2 mi E)
- Station IDUSC00351897
- Location43.79°N 123.03°W
- Elevation595 ft (181 m)
- Population10,690
- Jan 48° 33°
- Feb 52° 34°
- Mar 56° 35°
- Apr 61° 38°
- May 68° 44°
- Jun 73° 48°
- Jul 82° 51°
- Aug 83° 50°
- Sep 77° 46°
- Oct 64° 41°
- Nov 53° 37°
- Dec 47° 33°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Cottage Grove in December?
The normal high is 47°F and the normal low 33°F, for a daily mean of 40.0°F. December is 5.0°F cooler than November and 0.7°F cooler than January. December is the 12th warmest month of the year in Cottage Grove and the wettest. Across the month the normal high falls 3°F, from 49°F on December 1 to 46°F on December 31. From one year to the next December's mean temperature typically moves about 2.4°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 38°F and 42°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 72%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 49°F | 35°F | 72% | 45% |
| December 8 | 47°F | 34°F | 71% | 45% |
| December 15 | 46°F | 33°F | 71% | 46% |
| December 22 | 46°F | 33°F | 71% | 45% |
| December 31 | 46°F | 33°F | 70% | 45% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 22)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 49°F | 35°F | 72% | 45% | 9 h 10 min |
| December 2 | 48°F | 35°F | 72% | 45% | 9 h 10 min |
| December 3 | 48°F | 35°F | 72% | 45% | 9 h 10 min |
| December 4 | 48°F | 34°F | 72% | 45% | 9 h 10 min |
| December 5 | 48°F | 34°F | 72% | 45% | 9 h 10 min |
| December 6 | 48°F | 34°F | 72% | 45% | 9 h |
| December 7 | 47°F | 34°F | 71% | 45% | 9 h |
| December 8 | 47°F | 34°F | 71% | 45% | 9 h |
| December 9 | 47°F | 34°F | 71% | 46% | 9 h |
| December 10 | 47°F | 34°F | 71% | 46% | 9 h |
| December 11 | 47°F | 33°F | 71% | 46% | 9 h |
| December 12 | 47°F | 33°F | 71% | 46% | 9 h |
| December 13 | 47°F | 33°F | 71% | 46% | 9 h |
| December 14 | 46°F | 33°F | 71% | 46% | 9 h |
| December 15 | 46°F | 33°F | 71% | 46% | 9 h |
| December 16 | 46°F | 33°F | 71% | 46% | 9 h |
| December 17 | 46°F | 33°F | 71% | 46% | 9 h |
| December 18 | 46°F | 33°F | 71% | 46% | 9 h |
| December 19 | 46°F | 33°F | 71% | 46% | 9 h |
| December 20 | 46°F | 33°F | 71% | 46% | 8 h 50 min |
| December 21 | 46°F | 33°F | 71% | 46% | 8 h 50 min |
| December 22 | 46°F | 33°F | 71% | 45% | 8 h 50 min |
| December 23 | 46°F | 33°F | 71% | 45% | 8 h 50 min |
| December 24 | 46°F | 33°F | 70% | 45% | 8 h 50 min |
| December 25 | 46°F | 33°F | 70% | 45% | 8 h 50 min |
| December 26 | 46°F | 33°F | 70% | 45% | 9 h |
| December 27 | 46°F | 33°F | 70% | 45% | 9 h |
| December 28 | 46°F | 33°F | 70% | 45% | 9 h |
| December 29 | 46°F | 33°F | 70% | 45% | 9 h |
| December 30 | 46°F | 33°F | 70% | 45% | 9 h |
| December 31 | 46°F | 33°F | 70% | 45% | 9 h |
- Normal high
- 47°FDecember average
- Normal low
- 33°FDecember average
- Precipitation
- 7.57 inmonth total
- Days with precipitation
- 220.01 inch or more
- Snowfall
- 0.4 inmonth total
- Nights at 32°F or colder
- 13
- Daylight
- 9 h 10 min to 9 hDecember 1 to December 31
- Sunshine
- 55%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00351897; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Cottage Grove in December?
On a given December day the chance of 0.01 inch or more is 71% on average, highest around December 1 (72%). In all, 7.57 in falls on 22 days of a normal December, 2 of them with an inch or more.
In a normal December in Cottage Grove, 13 nights fall to freezing, 1 days stay below freezing all day and snowfall averages 0.4 inches.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00351897.
What are the records for December in Cottage Grove?
The warmest December temperature on this station's record (since 1916) is 73°F, on December 17, 1926; the coldest is −4°F, on December 13, 1919. The wettest December brought 18.38 in (1955); the snowiest, 12.0 inches (1964).
The December mean against the 1991-2020 normal of 40.0°F: 2021 41.5°F (+1.5), 2022 38.9°F (−1.1), 2023 44.3°F (+4.3), 2024 42.1°F (+2.1). 3 of 4 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 41.5°F | +1.5°F | 9.07 in |
| 2022 | 38.9°F | −1.1°F | 6.98 in |
| 2023 | 44.3°F | +4.3°F | 8.39 in |
| 2024 | 42.1°F | +2.1°F | 9.92 in |
Source: records: ACIS, station USC00351897; recent months: ACIS, station USC00351897. Records and recent months use complete months only.
How does December in Cottage Grove compare across Oregon?
Across the 105 places PlainClimate covers in Oregon, December normal highs run from 33°F in Halfway to 55°F in Bandon; Cottage Grove's is 47°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Cottage Grove in November53°F by day, 37°F at night
- Cottage Grove in January48°F by day, 33°F at night
- Cottage Grove through the yearEvery month, frost dates, records and recent years
- Oregon in DecemberThe statewide normal and the warmest and coolest places
- Bandon: Oregon's warmest Decembernormal high 55°F