Roslyn climate

Roslyn Weather in May

NOAA 1991-2020 normals for Cle Elum, 7.1 km from Roslyn

Average highs run from 62°F on May 1 to 69°F on May 31, and lows from 36°F to 44°F. Normal precipitation for the month is 1.64 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 Roslyn, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
66°F
Average low
40°F
Precipitation
1.64 in
Record high
86°FMay 31, 1986
Record low
20°FMay 1, 1954
Chance of a freeze
82%
Daylight
14 h 27 min to 15 h 40 min
Cloud cover
67%
Humidity
78%
Dew point
38°F
Wind
4.7 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
May 162°F36°F71°F 199820°F 1954
May 263°F37°F70°F 202624°F 1952
May 363°F37°F73°F 202325°F 1949
May 463°F37°F75°F 196624°F 1962
May 564°F37°F77°F 199222°F 1965
May 664°F38°F82°F 199223°F 2002
May 764°F38°F77°F 198724°F 1999
May 864°F38°F78°F 198725°F 1955
May 965°F39°F72°F 198726°F 1991
May 1065°F39°F74°F 201924°F 1944
May 1165°F39°F74°F 199324°F 1985
May 1266°F40°F81°F 199326°F 1964
May 1366°F40°F76°F 201823°F 1964
May 1466°F40°F77°F 197326°F 1955
May 1566°F40°F76°F 200627°F 1974
May 1666°F41°F78°F 200627°F 1965
May 1767°F41°F85°F 200627°F 1971
May 1867°F41°F77°F 200627°F 1950
May 1967°F41°F71°F 195626°F 1975
May 2067°F42°F75°F 195827°F 1960
May 2167°F42°F76°F 195827°F 1960
May 2268°F42°F79°F 195827°F 1978
May 2368°F42°F79°F 200126°F 1975
May 2468°F43°F78°F 195824°F 1975
May 2568°F43°F78°F 195827°F 1964
May 2668°F43°F81°F 195828°F 1966
May 2768°F43°F81°F 200523°F 1966
May 2869°F43°F84°F 200529°F 1951
May 2969°F44°F84°F 198329°F 1951
May 3069°F44°F85°F 198627°F 1955
May 3169°F44°F86°F 198628°F 1955

Chance of rain

Sunrise and sunset

Times for 2026, local time (PDT).

May 1
sunrise 5:48 AM, sunset 8:15 PM
May 31
sunrise 5:12 AM, sunset 8:52 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00451504 (Cle Elum), public domain. Records: NOAA GHCN-Daily, station USW00024237, 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.