Harney County climate

Harney County Weather in May

NOAA 1991-2020 normals for Malheur Refuge Hq, 24.5 km from Harney County

Average highs run from 63°F on May 1 to 71°F on May 31, and lows from 35°F to 42°F. Normal precipitation for the month is 1.80 in.

May day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Harney County, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
68°F
Average low
39°F
Precipitation
1.80 in
Record high
94°FMay 30, 1986
Record low
13°FMay 1, 2008
Chance of a freeze
93%
Daylight
14 h 08 min to 15 h 08 min
Cloud cover
60%
Humidity
54%
Dew point
33°F
Wind
8.7 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
May 163°F35°F80°F 201413°F 2008
May 264°F35°F82°F 201420°F 1997
May 364°F35°F82°F 200420°F 1996
May 464°F36°F82°F 199215°F 1996
May 565°F36°F87°F 199022°F 1982
May 665°F36°F89°F 199220°F 2001
May 765°F37°F85°F 198719°F 2020
May 866°F37°F86°F 198715°F 2002
May 966°F37°F82°F 198721°F 1999
May 1066°F38°F85°F 202621°F 1999
May 1167°F38°F86°F 199320°F 1999
May 1267°F38°F90°F 202618°F 2000
May 1367°F38°F84°F 201322°F 2009
May 1468°F39°F84°F 200624°F 2017
May 1568°F39°F89°F 200623°F 1974
May 1668°F39°F90°F 200619°F 1999
May 1768°F39°F92°F 200824°F 2003
May 1869°F40°F90°F 200924°F 2003
May 1969°F40°F85°F 202319°F 2003
May 2069°F40°F86°F 202321°F 2022
May 2169°F40°F86°F 200028°F 1987
May 2269°F40°F85°F 200124°F 1986
May 2370°F41°F89°F 200119°F 2013
May 2470°F41°F88°F 199229°F 1978
May 2570°F41°F90°F 199223°F 1975
May 2670°F41°F89°F 198623°F 1975
May 2770°F41°F86°F 198329°F 1982
May 2870°F41°F92°F 200326°F 2007
May 2971°F41°F93°F 202023°F 2014
May 3071°F42°F94°F 198626°F 1985
May 3171°F42°F92°F 198622°F 2000

Chance of rain

Sunrise and sunset

Times for 2026, local time (PDT).

May 1
sunrise 5:49 AM, sunset 7:57 PM
May 31
sunrise 5:20 AM, sunset 8:28 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00355162 (Malheur Refuge Hq), public domain. Records: NOAA GHCN-Daily, station USW00094185, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.