Climate averages 1991–2020

Bend weather
in May.

A mild, moderately wet month: the 5th warmest and the 6th driest of the year.

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

Average high 16.9°C Daytime mean, May
Average low 4.4°C Night-time mean, May
Rainfall 45 mm 10 days with ≥1 mm
Daylight 15 h Sunrise to sunset, per day
Every month in Bend · average highYear overview

May is a mild month in Bend: daytime highs average 16.9°C and nights cool to about 4.4°C. By daytime temperature it is the 5th warmest of the 12 months.

Expect about 45 mm of rain on roughly 10 days, which makes May a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 44 min on an average May day.

The nearest other city in this atlas is Eugene (142 km away). In May its highs average 18.0°C, 1.1°C warmer than Bend, with 82 mm of rain.

Among the 498 cities listed in the United States, Bend ranks 485th of 498 for the warmest May highs and 139th of 498 for the driest May (rainfall, lowest first). The mean May high of those 498 cities is 23.8°C; Bend is 6.8°C cooler than that mean.

From May to June, average highs rise by 4.4°C to 21.4°C, and monthly rainfall falls from 45 mm to 26 mm.

The annual picture

May 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. -10-5051015202530 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 1000

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

Every month, side by side

Bend climate table

1991–2020
Monthly climate averages for Bend, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 3.8°C-4.7°C-4.7°C7112.29.39 h
February 5.2°C-4.2°C-4.2°C5611.110.410 h
March 8.2°C-2.4°C-2.4°C5612.111.912 h
April 11.7°C0.2°C0.2°C4611.513.413 h
May, selected 16.9°C4.4°C4.4°C459.614.715 h
June 21.4°C7.6°C7.6°C266.715.415 h
July 27.7°C11.3°C11.3°C143.715.115 h
August 27.2°C11.3°C11.3°C143.914.014 h
September 22.9°C7.9°C7.9°C163.412.613 h
October 15.0°C2.9°C2.9°C376.811.011 h
November 7.6°C-1.5°C-1.5°C6911.69.710 h
December 3.2°C-4.9°C-4.9°C9613.19.09 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

May in nearby cities

Distance from Bend

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 Bend) is explained once on the Bend year overview and on the Sources, method and limits page.