Eugene weather in January: Eugene, Oregon: normal highs, lows, rain and records for January
Eugene in January has a normal high of 48°F and a normal low of 35°F, a daily mean of 41°F, rising from 47°F on the 1st to 50°F by the 31st. Measurable precipitation falls on 18 days in a normal January, 6.05 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 9°C and low of 2°C, 154 mm of precipitation in January.
- NOAA stationEugene-Mahlon Sweet Field
- Station IDUSW00024221
- Location44.13°N 123.22°W
- Elevation353 ft (108 m)
- Population178,786
- Jan 48° 35°
- Feb 52° 35°
- Mar 57° 37°
- Apr 61° 40°
- May 68° 44°
- Jun 74° 48°
- Jul 84° 52°
- Aug 84° 52°
- Sep 78° 48°
- Oct 65° 42°
- Nov 53° 38°
- Dec 47° 34°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Eugene in January?
The normal high is 48°F and the normal low 35°F, for a daily mean of 41.4°F. January is 0.8°F warmer than December and 1.9°F cooler than February. January is the 11th warmest month of the year in Eugene and the 2nd wettest. Across the month the normal high rises 3°F, from 47°F on January 1 to 50°F on January 31. From one year to the next January's mean temperature typically moves about 2.9°F either way (NOAA's standard deviation), so roughly two Januarys in three average between 39°F and 44°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 60%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| January 1 | 47°F | 34°F | 60% | 41% |
| January 8 | 47°F | 35°F | 59% | 40% |
| January 15 | 48°F | 35°F | 58% | 39% |
| January 22 | 49°F | 35°F | 56% | 38% |
| January 31 | 50°F | 35°F | 55% | 37% |
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 | 47°F | 34°F | 60% | 41% | 9 h |
| January 2 | 47°F | 34°F | 60% | 40% | 9 h |
| January 3 | 47°F | 34°F | 60% | 40% | 9 h |
| January 4 | 47°F | 34°F | 60% | 40% | 9 h |
| January 5 | 47°F | 34°F | 60% | 40% | 9 h |
| January 6 | 47°F | 34°F | 60% | 40% | 9 h |
| January 7 | 47°F | 35°F | 59% | 40% | 9 h |
| January 8 | 47°F | 35°F | 59% | 40% | 9 h |
| January 9 | 47°F | 35°F | 59% | 40% | 9 h |
| January 10 | 48°F | 35°F | 59% | 40% | 9 h 10 min |
| January 11 | 48°F | 35°F | 59% | 40% | 9 h 10 min |
| January 12 | 48°F | 35°F | 58% | 40% | 9 h 10 min |
| January 13 | 48°F | 35°F | 58% | 39% | 9 h 10 min |
| January 14 | 48°F | 35°F | 58% | 39% | 9 h 10 min |
| January 15 | 48°F | 35°F | 58% | 39% | 9 h 10 min |
| January 16 | 48°F | 35°F | 57% | 39% | 9 h 10 min |
| January 17 | 48°F | 35°F | 57% | 39% | 9 h 20 min |
| January 18 | 48°F | 35°F | 57% | 39% | 9 h 20 min |
| January 19 | 48°F | 35°F | 57% | 38% | 9 h 20 min |
| January 20 | 49°F | 35°F | 57% | 38% | 9 h 20 min |
| January 21 | 49°F | 35°F | 56% | 38% | 9 h 20 min |
| January 22 | 49°F | 35°F | 56% | 38% | 9 h 30 min |
| January 23 | 49°F | 35°F | 56% | 38% | 9 h 30 min |
| January 24 | 49°F | 35°F | 56% | 38% | 9 h 30 min |
| January 25 | 49°F | 35°F | 56% | 38% | 9 h 30 min |
| January 26 | 49°F | 35°F | 56% | 37% | 9 h 30 min |
| January 27 | 49°F | 35°F | 55% | 37% | 9 h 40 min |
| January 28 | 49°F | 35°F | 55% | 37% | 9 h 40 min |
| January 29 | 49°F | 35°F | 55% | 37% | 9 h 40 min |
| January 30 | 49°F | 35°F | 55% | 37% | 9 h 40 min |
| January 31 | 50°F | 35°F | 55% | 37% | 9 h 50 min |
- Normal high
- 48°FJanuary average
- Normal low
- 35°FJanuary average
- Precipitation
- 6.05 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
- 57%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024221; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Eugene in January?
On a given January day the chance of 0.01 inch or more is 57% on average, highest around January 1 (60%). In all, 6.05 in falls on 18 days of a normal January, 1 of them with an inch or more.
In a normal January in Eugene, 11 nights fall to freezing and 1 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024221.
How humid and windy is Eugene in January?
At 3 p.m. the normal temperature is 49°F with 73% relative humidity and a dew point of 40°F; at 6 a.m. it is 39°F with 91% humidity. The wind averages 6.5 mph, most often from the south-southwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 39°F | 36°F | 91% | 5.9 mph | – |
| 9 a.m. | 40°F | 37°F | 91% | 6.0 mph | – |
| noon | 46°F | 40°F | 79% | 7.7 mph | – |
| 3 p.m. | 49°F | 40°F | 73% | 8.1 mph | – |
| 6 p.m. | 44°F | 40°F | 85% | 6.3 mph | – |
| 9 p.m. | 41°F | 39°F | 90% | 5.8 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024221. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for January in Eugene?
The warmest January temperature on Eugene's official record (since 1893) is 69°F, on January 4, 1914; the coldest is −4°F, on January 27, 1957. The wettest January brought 15.36 in (1995); the snowiest, 47.1 inches (1969).
The January mean against the 1991-2020 normal of 41.4°F: 2021 44.6°F (+3.2), 2022 42.0°F (+0.6), 2023 41.7°F (+0.3), 2024 43.3°F (+1.9), 2025 39.3°F (−2.1), 2026 39.1°F (−2.3). 4 of 6 ran warmer than normal.
| January | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 44.6°F | +3.2°F | 5.66 in |
| 2022 | 42.0°F | +0.6°F | 4.07 in |
| 2023 | 41.7°F | +0.3°F | 2.83 in |
| 2024 | 43.3°F | +1.9°F | 9.63 in |
| 2025 | 39.3°F | −2.1°F | 4.35 in |
| 2026 | 39.1°F | −2.3°F | 2.29 in |
Source: records: ACIS, NWS threaded record EUGthr; recent months: ACIS, station USW00024221. Records and recent months use complete months only.
How does January in Eugene 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; Eugene's is 48°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.