Coos Bay weather in January: Coos Bay, Oregon: normal highs, lows, rain and records for January
Coos Bay in January has a normal high of 52°F and a normal low of 36°F, a daily mean of 44°F, rising from 51°F on the 1st to 53°F by the 31st. Measurable precipitation falls on 18 days in a normal January, 10.71 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 11°C and low of 2°C, 272 mm of precipitation in January.
- NOAA stationCoos Bay (8 mi SW)
- Station IDUSW00004141
- Location43.27°N 124.32°W
- Elevation12 ft (4 m)
- Population15,801
- Jan 52° 36°
- Feb 54° 37°
- Mar 56° 38°
- Apr 57° 39°
- May 60° 44°
- Jun 62° 47°
- Jul 64° 51°
- Aug 66° 50°
- Sep 66° 47°
- Oct 63° 42°
- Nov 56° 39°
- Dec 51° 36°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Coos Bay in January?
The normal high is 52°F and the normal low 36°F, for a daily mean of 43.9°F. January is 0.1°F warmer than December and 1.4°F cooler than February. January is the 11th warmest month of the year in Coos Bay and the 2nd wettest. Across the month the normal high rises 2°F, from 51°F on January 1 to 53°F on January 31. From one year to the next January's mean temperature typically moves about 2.4°F either way (NOAA's standard deviation), so roughly two Januarys in three average between 42°F and 46°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 64%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| January 1 | 51°F | 36°F | 64% | 48% |
| January 8 | 51°F | 36°F | 63% | 47% |
| January 15 | 52°F | 36°F | 61% | 45% |
| January 22 | 53°F | 36°F | 61% | 45% |
| January 31 | 53°F | 36°F | 62% | 44% |
Every day of January: normal high, low and chance of precipitation (warmest afternoon January 31, coldest night January 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| January 1 | 51°F | 36°F | 64% | 48% | 9 h |
| January 2 | 51°F | 36°F | 64% | 48% | 9 h |
| January 3 | 51°F | 36°F | 64% | 48% | 9 h |
| January 4 | 51°F | 36°F | 64% | 48% | 9 h |
| January 5 | 51°F | 36°F | 63% | 47% | 9 h 10 min |
| January 6 | 51°F | 36°F | 63% | 47% | 9 h 10 min |
| January 7 | 51°F | 36°F | 63% | 47% | 9 h 10 min |
| January 8 | 51°F | 36°F | 63% | 47% | 9 h 10 min |
| January 9 | 51°F | 36°F | 62% | 46% | 9 h 10 min |
| January 10 | 52°F | 36°F | 62% | 46% | 9 h 10 min |
| January 11 | 52°F | 36°F | 62% | 46% | 9 h 10 min |
| January 12 | 52°F | 36°F | 62% | 46% | 9 h 10 min |
| January 13 | 52°F | 36°F | 61% | 46% | 9 h 20 min |
| January 14 | 52°F | 36°F | 61% | 45% | 9 h 20 min |
| January 15 | 52°F | 36°F | 61% | 45% | 9 h 20 min |
| January 16 | 52°F | 36°F | 61% | 45% | 9 h 20 min |
| January 17 | 52°F | 36°F | 61% | 45% | 9 h 20 min |
| January 18 | 52°F | 36°F | 61% | 45% | 9 h 20 min |
| January 19 | 52°F | 36°F | 61% | 45% | 9 h 30 min |
| January 20 | 52°F | 36°F | 61% | 45% | 9 h 30 min |
| January 21 | 52°F | 36°F | 61% | 45% | 9 h 30 min |
| January 22 | 53°F | 36°F | 61% | 45% | 9 h 30 min |
| January 23 | 53°F | 36°F | 61% | 44% | 9 h 30 min |
| January 24 | 53°F | 36°F | 61% | 44% | 9 h 40 min |
| January 25 | 53°F | 36°F | 61% | 44% | 9 h 40 min |
| January 26 | 53°F | 36°F | 61% | 44% | 9 h 40 min |
| January 27 | 53°F | 36°F | 61% | 44% | 9 h 40 min |
| January 28 | 53°F | 36°F | 61% | 44% | 9 h 40 min |
| January 29 | 53°F | 36°F | 61% | 44% | 9 h 50 min |
| January 30 | 53°F | 36°F | 61% | 44% | 9 h 50 min |
| January 31 | 53°F | 36°F | 62% | 44% | 9 h 50 min |
- Normal high
- 52°FJanuary average
- Normal low
- 36°FJanuary average
- Precipitation
- 10.71 inmonth total
- Days with precipitation
- 180.01 inch or more
- Nights at 32°F or colder
- 11
- Daylight
- 9 h to 9 h 50 minJanuary 1 to January 31
- Sunshine
- 61%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00004141; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Coos Bay in January?
On a given January day the chance of 0.01 inch or more is 62% on average, highest around January 1 (64%). In all, 10.71 in falls on 18 days of a normal January, 2 of them with an inch or more.
In a normal January in Coos Bay, 11 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00004141.
What are the records for January in Coos Bay?
The January mean against the 1991-2020 normal of 43.9°F: 2023 43.1°F (−0.8), 2024 49.4°F (+5.5), 2025 42.7°F (−1.2), 2026 44.7°F (+0.8). 2 of 4 ran warmer than normal.
| January | Mean | Against normal | Precip. |
|---|---|---|---|
| 2023 | 43.1°F | −0.8°F | 9.47 in |
| 2024 | 49.4°F | +5.5°F | 18.80 in |
| 2025 | 42.7°F | −1.2°F | 8.33 in |
| 2026 | 44.7°F | +0.8°F | 5.69 in |
Source: recent months: ACIS, station USW00004141. Records and recent months use complete months only.
How does January in Coos Bay compare across Oregon?
Across the 105 places PlainClimate covers in Oregon, January normal highs run from 32°F in Halfway to 55°F in Bandon; Coos Bay's is 52°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.