Climate averages 1991–2020
Kennewick weather
in March.
A cool, fairly dry month: the 8th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a cool month in Kennewick: daytime highs average 14.2°C and nights cool to about 2.7°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 24 mm of rain on roughly 6 days, which makes March a fairly dry month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 53 min on an average March day.
The nearest other city in this atlas is Tri-Cities (6 km away). In March its highs average 14.3°C, about as warm as Kennewick, with 24 mm of rain.
Among the 498 cities listed in the United States, Kennewick ranks joint 278th of 498 for the warmest March highs and joint 18th of 498 for the driest March (rainfall, lowest first). The mean March high of those 498 cities is 14.9°C; Kennewick is 0.8°C cooler than that mean.
From March to April, average highs rise by 4.9°C to 19.1°C, and monthly rainfall falls from 24 mm to 17 mm.
The annual picture
March 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
Kennewick climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.7°C-1.7°C | -1.7°C | 34 | 8.1 | 9.19 h |
| February | 9.1°C-0.5°C | -0.5°C | 23 | 6.2 | 10.310 h |
| March, selected | 14.2°C2.7°C | 2.7°C | 24 | 5.9 | 11.912 h |
| April | 19.1°C6.5°C | 6.5°C | 17 | 4.9 | 13.514 h |
| May | 24.8°C11.4°C | 11.4°C | 18 | 4.5 | 14.915 h |
| June | 28.8°C15.2°C | 15.2°C | 13 | 2.8 | 15.716 h |
| July | 34.1°C19.1°C | 19.1°C | 3.8 | 1.0 | 15.415 h |
| August | 33.0°C18.5°C | 18.5°C | 4.2 | 1.0 | 14.214 h |
| September | 27.4°C13.9°C | 13.9°C | 6.9 | 1.8 | 12.613 h |
| October | 18.7°C7.8°C | 7.8°C | 22 | 5.0 | 11.011 h |
| November | 10.5°C2.2°C | 2.2°C | 29 | 7.3 | 9.59 h |
| December | 5.4°C-1.4°C | -1.4°C | 35 | 8.4 | 8.79 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
March in nearby cities
- Tri-Cities in MarchUnited States · 6 kmHigh 14.3°C · Low 2.8°C · 24 mm rain
- Yakima in MarchUnited States · 114 kmHigh 10.9°C · Low -0.4°C · 33 mm rain
- Spokane in MarchUnited States · 207 kmHigh 9.7°C · Low -0.6°C · 63 mm rain
- Spokane Valley in MarchUnited States · 217 kmHigh 9.1°C · Low -1.2°C · 70 mm rain
- Auburn in MarchUnited States · 265 kmHigh 11.0°C · Low 2.7°C · 152 mm rain
- Gresham in MarchUnited States · 267 kmHigh 11.5°C · Low 2.4°C · 178 mm rain
- Kent in MarchUnited States · 269 kmHigh 11.3°C · Low 3.0°C · 139 mm rain
- Federal Way in MarchUnited States · 272 kmHigh 10.3°C · Low 2.2°C · 152 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 Kennewick) is explained once on the Kennewick year overview and on the Sources, method and limits page.
Tri-Cities lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.