Trout Lake climate

Trout Lake Weather in May

NOAA 1991-2020 normals for Mt Adams RS, 1 km from Trout Lake

Average highs run from 64°F on May 1 to 71°F on May 31, and lows from 36°F to 43°F.

May day by day

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

Normal daily high and low temperature at Trout Lake, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
68°F
Average low
40°F
Record high
102°FMay 31, 1986
Record low
26°FMay 1, 1954
Chance of a freeze
87%
Daylight
14 h 21 min to 15 h 30 min
Cloud cover
64%
Humidity
75%
Dew point
41°F
Wind
5.6 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 164°F36°F88°F 199826°F 19540%
May 264°F37°F88°F 193728°F 19520%
May 364°F37°F85°F 190031°F 19280%
May 465°F37°F90°F 196631°F 19190%
May 565°F37°F94°F 196630°F 19190%
May 665°F38°F90°F 199230°F 19370%
May 766°F38°F95°F 199232°F 19160%
May 866°F38°F93°F 198731°F 19960%
May 966°F38°F93°F 198727°F 19220%
May 1066°F39°F92°F 192429°F 19990%
May 1167°F39°F96°F 192429°F 19700%
May 1267°F39°F95°F 192430°F 19160%
May 1367°F39°F88°F 193931°F 19160%
May 1468°F40°F94°F 193928°F 19640%
May 1568°F40°F90°F 197331°F 19640%
May 1668°F40°F91°F 200634°F 18990%
May 1768°F40°F92°F 200830°F 18940%
May 1868°F41°F95°F 200832°F 19760%
May 1969°F41°F91°F 195630°F 20010%
May 2069°F41°F92°F 192832°F 19750%
May 2169°F41°F89°F 196732°F 19180%
May 2269°F41°F90°F 194030°F 19600%
May 2369°F42°F94°F 200129°F 19640%
May 2470°F42°F93°F 192834°F 19200%
May 2570°F42°F95°F 194729°F 19320%
May 2670°F42°F96°F 193633°F 19180%
May 2770°F42°F91°F 195232°F 19220%
May 2870°F42°F92°F 198334°F 19140%
May 2970°F43°F97°F 198332°F 19760%
May 3070°F43°F96°F 193134°F 19780%
May 3171°F43°F102°F 198633°F 19530%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Trout Lake, in percent, and of at least 0.1 inch of snowfall.00.21102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

May 1
sunrise 5:53 AM, sunset 8:14 PM
May 31
sunrise 5:19 AM, sunset 8:49 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00455659 (Mt Adams RS), public domain. Records: NOAA GHCN-Daily, station USC00354003, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.