Climate averages 1991–2020

Beaverton weather
in March.

A cool, wet month: the 8th warmest and the 9th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 12.0°C Daytime mean, March
Average low 3.3°C Night-time mean, March
Rainfall 145 mm 18 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Beaverton · average highYear overview

March is a cool month in Beaverton: daytime highs average 12.0°C and nights cool to about 3.3°C. By daytime temperature it is the 8th warmest of the 12 months.

Expect about 145 mm of rain on roughly 18 days, which makes March a wet 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 Portland (11 km away). In March its highs average 12.4°C, about as warm as Beaverton, with 145 mm of rain.

Among the 498 cities listed in the United States, Beaverton ranks joint 310th of 498 for the warmest March highs and joint 484th of 498 for the driest March (rainfall, lowest first). The mean March high of those 498 cities is 14.9°C; Beaverton is 3.0°C cooler than that mean.

From March to April, average highs rise by 2.5°C to 14.4°C, and monthly rainfall falls from 145 mm to 115 mm.

The annual picture

March in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. -5051015202530 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 2000

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Beaverton climate table

1991–2020
Monthly climate averages for Beaverton, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 7.9°C1.6°C1.6°C16717.39.19 h
February 9.6°C1.8°C1.8°C13015.010.310 h
March, selected 12.0°C3.3°C3.3°C14517.511.912 h
April 14.4°C5.1°C5.1°C11516.113.513 h
May 18.5°C8.3°C8.3°C7011.114.915 h
June 21.4°C10.9°C10.9°C437.615.616 h
July 26.6°C13.7°C13.7°C122.315.315 h
August 27.1°C14.2°C14.2°C142.614.114 h
September 23.7°C12.0°C12.0°C426.212.613 h
October 16.6°C7.9°C7.9°C10611.811.011 h
November 10.7°C4.0°C4.0°C17417.39.610 h
December 7.3°C1.5°C1.5°C19318.08.89 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

Distance from Beaverton

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 limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Beaverton) is explained once on the Beaverton year overview and on the Sources, method and limits page.

Portland lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.