Ritzville climate

Ritzville Weather in May

NOAA 1991-2020 normals for Ritzville 1 Sse, 1.3 km from Ritzville

Average highs run from 65°F on May 1 to 72°F on May 31, and lows from 37°F to 45°F. Normal precipitation for the month is 1.19 in over about 7 wet days.

May day by day

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

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

May at a glance

Average high
69°F
Average low
41°F
Precipitation
1.19 in
Record high
94°FMay 30, 1986
Record low
16°FMay 1, 2013
Chance of a freeze
70%
Days of 90°F or more
0.6
Daylight
14 h 28 min to 15 h 39 min
Cloud cover
59%
Humidity
54%
Dew point
40°F
Wind
8.3 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
May 165°F37°F81°F 193116°F 201324%0%
May 265°F37°F82°F 199822°F 198824%0%
May 366°F38°F83°F 202325°F 192823%0%
May 466°F38°F82°F 202323°F 198223%0%
May 566°F38°F82°F 197024°F 193823%0%
May 667°F39°F86°F 199222°F 200223%0%
May 767°F39°F88°F 199218°F 193023%0%
May 867°F39°F88°F 198720°F 199623%0%
May 968°F40°F89°F 198722°F 199924%0%
May 1068°F40°F90°F 192422°F 199924%0%
May 1168°F40°F91°F 192420°F 190924%0%
May 1268°F40°F88°F 193127°F 191624%0%
May 1369°F41°F91°F 199326°F 195624%0%
May 1469°F41°F87°F 193125°F 198624%0%
May 1569°F41°F89°F 193927°F 197424%0%
May 1669°F42°F90°F 197324°F 198624%0%
May 1770°F42°F90°F 200625°F 202624%0%
May 1870°F42°F91°F 200624°F 202424%0%
May 1970°F42°F90°F 200622°F 198724%0%
May 2070°F43°F86°F 195427°F 193124%0%
May 2171°F43°F89°F 192828°F 191824%0%
May 2271°F43°F90°F 195824°F 192024%0%
May 2371°F43°F89°F 195825°F 191624%0%
May 2471°F43°F91°F 193425°F 192024%0%
May 2571°F44°F93°F 192826°F 193224%0%
May 2672°F44°F93°F 195828°F 193224%0%
May 2772°F44°F92°F 195827°F 201424%0%
May 2872°F44°F93°F 193426°F 192024%0%
May 2972°F44°F92°F 193426°F 200123%0%
May 3072°F45°F94°F 198625°F 202423%0%
May 3172°F45°F94°F 198627°F 192023%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Ritzville, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

May 1
sunrise 5:37 AM, sunset 8:05 PM
May 31
sunrise 5:02 AM, sunset 8:41 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00457059 (Ritzville 1 Sse), public domain. Records: NOAA GHCN-Daily, station USC00452007, 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.