Renton weather in January: Renton, Washington: normal highs, lows, rain and records for January
Renton in January has a normal high of 48°F and a normal low of 37°F, a daily mean of 43°F, rising from 47°F on the 1st to 49°F by the 31st. Measurable precipitation falls on 18 days in a normal January, 4.93 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 9°C and low of 3°C, 125 mm of precipitation in January.
- NOAA stationRenton Municipal Airport
- Station IDUSW00094248
- Location47.49°N 122.21°W
- Elevation29 ft (9 m)
- From the center1 miles
- Population105,543
- Jan 48° 37°
- Feb 50° 37°
- Mar 55° 40°
- Apr 60° 43°
- May 66° 49°
- Jun 71° 54°
- Jul 77° 58°
- Aug 78° 57°
- Sep 72° 53°
- Oct 61° 46°
- Nov 52° 40°
- Dec 47° 37°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Renton in January?
The normal high is 48°F and the normal low 37°F, for a daily mean of 42.5°F. January is 0.7°F warmer than December and 1.1°F cooler than February. January is the 11th warmest month of the year in Renton and the 2nd wettest. Across the month the normal high rises 2°F, from 47°F on January 1 to 49°F on January 31. From one year to the next January's mean temperature typically moves about 2.5°F either way (NOAA's standard deviation), so roughly two Januarys in three average between 40°F and 45°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 59%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| January 1 | 47°F | 37°F | 59% | 36% |
| January 8 | 47°F | 37°F | 59% | 36% |
| January 15 | 48°F | 37°F | 58% | 36% |
| January 22 | 49°F | 37°F | 58% | 36% |
| January 31 | 49°F | 37°F | 57% | 34% |
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 | 37°F | 59% | 36% | 8 h 30 min |
| January 2 | 47°F | 37°F | 59% | 36% | 8 h 30 min |
| January 3 | 47°F | 37°F | 59% | 36% | 8 h 30 min |
| January 4 | 47°F | 37°F | 59% | 36% | 8 h 30 min |
| January 5 | 47°F | 37°F | 59% | 36% | 8 h 30 min |
| January 6 | 47°F | 37°F | 59% | 36% | 8 h 40 min |
| January 7 | 47°F | 37°F | 59% | 36% | 8 h 40 min |
| January 8 | 47°F | 37°F | 59% | 36% | 8 h 40 min |
| January 9 | 48°F | 37°F | 59% | 36% | 8 h 40 min |
| January 10 | 48°F | 37°F | 59% | 36% | 8 h 40 min |
| January 11 | 48°F | 37°F | 59% | 36% | 8 h 40 min |
| January 12 | 48°F | 37°F | 59% | 36% | 8 h 50 min |
| January 13 | 48°F | 37°F | 59% | 36% | 8 h 50 min |
| January 14 | 48°F | 37°F | 58% | 36% | 8 h 50 min |
| January 15 | 48°F | 37°F | 58% | 36% | 8 h 50 min |
| January 16 | 48°F | 37°F | 58% | 36% | 8 h 50 min |
| January 17 | 48°F | 37°F | 58% | 36% | 8 h 50 min |
| January 18 | 48°F | 37°F | 58% | 36% | 9 h |
| January 19 | 48°F | 37°F | 58% | 36% | 9 h |
| January 20 | 48°F | 37°F | 58% | 36% | 9 h |
| January 21 | 48°F | 37°F | 58% | 36% | 9 h |
| January 22 | 49°F | 37°F | 58% | 36% | 9 h 10 min |
| January 23 | 49°F | 37°F | 58% | 35% | 9 h 10 min |
| January 24 | 49°F | 37°F | 58% | 35% | 9 h 10 min |
| January 25 | 49°F | 37°F | 58% | 35% | 9 h 10 min |
| January 26 | 49°F | 37°F | 58% | 35% | 9 h 20 min |
| January 27 | 49°F | 37°F | 58% | 35% | 9 h 20 min |
| January 28 | 49°F | 37°F | 58% | 35% | 9 h 20 min |
| January 29 | 49°F | 37°F | 57% | 34% | 9 h 20 min |
| January 30 | 49°F | 37°F | 57% | 34% | 9 h 30 min |
| January 31 | 49°F | 37°F | 57% | 34% | 9 h 30 min |
- Normal high
- 48°FJanuary average
- Normal low
- 37°FJanuary average
- Precipitation
- 4.93 inmonth total
- Days with precipitation
- 180.01 inch or more
- Nights at 32°F or colder
- 7
- Daylight
- 8 h 30 min to 9 h 30 minJanuary 1 to January 31
- Sunshine
- 52%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00094248; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Renton in January?
On a given January day the chance of 0.01 inch or more is 58% on average, highest around January 5 (59%). In all, 4.93 in falls on 18 days of a normal January, 1 of them with an inch or more.
In a normal January in Renton, 7 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00094248.
What are the records for January in Renton?
The warmest January temperature on this station's record (since 1998) is 64°F, on January 19, 2005; the coldest is 17°F, on January 14, 2024. The wettest January brought 11.57 in (2006).
The January mean against the 1991-2020 normal of 42.5°F: 2021 43.9°F (+1.4), 2022 41.6°F (−0.9), 2023 44.1°F (+1.6), 2024 42.4°F (−0.1), 2025 40.2°F (−2.3), 2026 43.6°F (+1.1). 3 of 6 ran warmer than normal.
| January | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 43.9°F | +1.4°F | 3.96 in |
| 2022 | 41.6°F | −0.9°F | 1.94 in |
| 2023 | 44.1°F | +1.6°F | 0.80 in |
| 2024 | 42.4°F | −0.1°F | 2.55 in |
| 2025 | 40.2°F | −2.3°F | 0.42 in |
| 2026 | 43.6°F | +1.1°F | 3.91 in |
Source: records: ACIS, station USW00094248; recent months: ACIS, station USW00094248. Records and recent months use complete months only.
How does January in Renton compare across Washington?
Across the 96 places PlainClimate covers in Washington, January normal highs run from 30°F in Winthrop to 49°F in Long Beach; Renton's is 48°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.