Grants Pass weather in December: Grants Pass, Oregon: normal highs, lows, rain and records for December
Grants Pass in December has a normal high of 46°F and a normal low of 35°F, a daily mean of 40°F, falling from 48°F on the 1st to 45°F by the 31st. Measurable precipitation falls on 17 days in a normal December, 6.55 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 8°C and low of 2°C, 166 mm of precipitation and 0 cm of snow in December.
- NOAA stationGrants Pass
- Station IDUSC00353445
- Location42.42°N 123.32°W
- Elevation932 ft (284 m)
- Population39,468
- Jan 48° 35°
- Feb 54° 36°
- Mar 60° 37°
- Apr 65° 40°
- May 74° 46°
- Jun 81° 51°
- Jul 91° 56°
- Aug 91° 55°
- Sep 84° 48°
- Oct 70° 41°
- Nov 54° 39°
- Dec 46° 35°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Grants Pass in December?
The normal high is 46°F and the normal low 35°F, for a daily mean of 40.4°F. December is 5.7°F cooler than November and 1.1°F cooler than January. December is the 12th warmest month of the year in Grants Pass and the wettest. Across the month the normal high falls 3°F, from 48°F on December 1 to 45°F on December 31. From one year to the next December's mean temperature typically moves about 2.6°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 38°F and 43°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 56%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 48°F | 37°F | 56% | 34% |
| December 8 | 46°F | 36°F | 56% | 35% |
| December 15 | 45°F | 35°F | 55% | 35% |
| December 22 | 45°F | 34°F | 55% | 35% |
| December 31 | 45°F | 35°F | 55% | 35% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 21)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 48°F | 37°F | 56% | 34% | 9 h 20 min |
| December 2 | 48°F | 37°F | 56% | 35% | 9 h 20 min |
| December 3 | 47°F | 37°F | 56% | 35% | 9 h 20 min |
| December 4 | 47°F | 36°F | 56% | 35% | 9 h 20 min |
| December 5 | 47°F | 36°F | 56% | 35% | 9 h 10 min |
| December 6 | 47°F | 36°F | 56% | 35% | 9 h 10 min |
| December 7 | 47°F | 36°F | 56% | 35% | 9 h 10 min |
| December 8 | 46°F | 36°F | 56% | 35% | 9 h 10 min |
| December 9 | 46°F | 36°F | 56% | 35% | 9 h 10 min |
| December 10 | 46°F | 36°F | 56% | 35% | 9 h 10 min |
| December 11 | 46°F | 35°F | 56% | 35% | 9 h 10 min |
| December 12 | 46°F | 35°F | 56% | 35% | 9 h 10 min |
| December 13 | 46°F | 35°F | 56% | 35% | 9 h 10 min |
| December 14 | 45°F | 35°F | 56% | 35% | 9 h 10 min |
| December 15 | 45°F | 35°F | 55% | 35% | 9 h 10 min |
| December 16 | 45°F | 35°F | 55% | 35% | 9 h 10 min |
| December 17 | 45°F | 35°F | 55% | 35% | 9 h 10 min |
| December 18 | 45°F | 35°F | 55% | 35% | 9 h |
| December 19 | 45°F | 35°F | 55% | 35% | 9 h |
| December 20 | 45°F | 35°F | 55% | 35% | 9 h |
| December 21 | 45°F | 34°F | 55% | 35% | 9 h |
| December 22 | 45°F | 34°F | 55% | 35% | 9 h |
| December 23 | 45°F | 34°F | 55% | 34% | 9 h |
| December 24 | 45°F | 34°F | 55% | 34% | 9 h |
| December 25 | 45°F | 34°F | 55% | 34% | 9 h |
| December 26 | 45°F | 34°F | 55% | 34% | 9 h |
| December 27 | 45°F | 34°F | 55% | 34% | 9 h |
| December 28 | 45°F | 34°F | 55% | 34% | 9 h 10 min |
| December 29 | 45°F | 34°F | 55% | 34% | 9 h 10 min |
| December 30 | 45°F | 34°F | 55% | 35% | 9 h 10 min |
| December 31 | 45°F | 35°F | 55% | 35% | 9 h 10 min |
- Normal high
- 46°FDecember average
- Normal low
- 35°FDecember average
- Precipitation
- 6.55 inmonth total
- Days with precipitation
- 170.01 inch or more
- Snowfall
- 0.1 inmonth total
- Nights at 32°F or colder
- 13
- Daylight
- 9 h 20 min to 9 h 10 minDecember 1 to December 31
- Sunshine
- 58%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00353445; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Grants Pass in December?
On a given December day the chance of 0.01 inch or more is 55% on average, highest around December 1 (56%). In all, 6.55 in falls on 17 days of a normal December, 2 of them with an inch or more.
In a normal December in Grants Pass, 13 nights fall to freezing, 1 days stay below freezing all day and snowfall averages 0.1 inches.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00353445.
What are the records for December in Grants Pass?
The warmest December temperature on this station's record (since 1893) is 75°F, on December 11, 1913; the coldest is −1°F, on December 10, 1972. The wettest December brought 20.23 in (1996); the snowiest, 14.8 inches (1964).
The December mean against the 1991-2020 normal of 40.4°F: 2021 40.3°F (−0.1), 2022 39.9°F (−0.5), 2023 44.5°F (+4.1), 2024 42.2°F (+1.8). 2 of 4 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 40.3°F | −0.1°F | 7.14 in |
| 2022 | 39.9°F | −0.5°F | 7.04 in |
| 2023 | 44.5°F | +4.1°F | 4.11 in |
| 2024 | 42.2°F | +1.8°F | 9.21 in |
Source: records: ACIS, station USC00353445; recent months: ACIS, station USC00353445. Records and recent months use complete months only.
How does December in Grants Pass 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; Grants Pass's is 46°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.