Climate averages 1991–2020
Renton weather
in January.
A cold, wet month: the 11th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a cold month in Renton: daytime highs average 7.7°C and nights cool to about 1.8°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 176 mm of rain on roughly 18 days, which makes January a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 8 h 55 min on an average January day.
The nearest other city in this atlas is Kent (11 km away). In January its highs average 7.7°C, about as warm as Renton, with 176 mm of rain.
Among the 498 cities listed in the United States, Renton ranks joint 282nd of 498 for the warmest January highs and joint 485th of 498 for the driest January (rainfall, lowest first). The mean January high of those 498 cities is 9.5°C; Renton is 1.8°C cooler than that mean.
From January to February, average highs rise by 1.4°C to 9.0°C, and monthly rainfall falls from 176 mm to 121 mm.
The annual picture
January in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Renton climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 7.7°C1.8°C | 1.8°C | 176 | 18.4 | 8.99 h |
| February | 9.0°C1.7°C | 1.7°C | 121 | 14.7 | 10.210 h |
| March | 11.2°C3.0°C | 3.0°C | 139 | 17.5 | 11.912 h |
| April | 13.9°C4.9°C | 4.9°C | 113 | 14.9 | 13.614 h |
| May | 17.6°C8.4°C | 8.4°C | 76 | 12.0 | 15.115 h |
| June | 20.0°C11.2°C | 11.2°C | 59 | 9.5 | 15.916 h |
| July | 24.1°C14.0°C | 14.0°C | 25 | 5.0 | 15.516 h |
| August | 24.5°C14.3°C | 14.3°C | 33 | 4.8 | 14.314 h |
| September | 21.1°C11.6°C | 11.6°C | 67 | 8.4 | 12.613 h |
| October | 15.2°C7.7°C | 7.7°C | 134 | 14.1 | 10.911 h |
| November | 10.1°C4.2°C | 4.2°C | 194 | 18.0 | 9.49 h |
| December | 7.1°C1.8°C | 1.8°C | 178 | 17.7 | 8.59 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
January in nearby cities
- Kent in JanuaryUnited States · 11 kmHigh 7.7°C · Low 1.8°C · 176 mm rain
- Bellevue in JanuaryUnited States · 14 kmHigh 7.4°C · Low 1.7°C · 176 mm rain
- Seattle in JanuaryUnited States · 16 kmHigh 7.2°C · Low 1.6°C · 176 mm rain
- Federal Way in JanuaryUnited States · 19 kmHigh 6.8°C · Low 1.1°C · 190 mm rain
- Auburn in JanuaryUnited States · 20 kmHigh 7.4°C · Low 1.4°C · 190 mm rain
- Kirkland in JanuaryUnited States · 22 kmHigh 7.1°C · Low 1.8°C · 179 mm rain
- Tacoma in JanuaryUnited States · 31 kmHigh 7.3°C · Low 1.7°C · 165 mm rain
- Everett in JanuaryUnited States · 55 kmHigh 7.0°C · Low 1.9°C · 232 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Renton) is explained once on the Renton year overview and on the Sources, method and limits page.
Seattle, Bellevue and Kent lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.