Lake Marcel-Stillwater climate

Lake Marcel-Stillwater Weather in May

NOAA 1991-2020 normals for Tolt S Fk Rsvr, 16.8 km from Lake Marcel-Stillwater

Average highs run from 57°F on May 1 to 63°F on May 31, and lows from 40°F to 46°F. Normal precipitation for the month is 6.94 in over about 18 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 Lake Marcel-Stillwater, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
61°F
Average low
44°F
Precipitation
6.94 in
Snowfall
0.4 in
Record high
92°FMay 14, 2023
Record low
37°FMay 1, 2011
Chance of a freeze
16%
Daylight
14 h 30 min to 15 h 43 min
Cloud cover
67%
Humidity
81%
Dew point
45°F
Wind
3.6 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 157°F40°F87°F 201437°F 201163%2%
May 257°F41°F87°F 201638°F 200663%2%
May 358°F41°F80°F 202640°F 200162%2%
May 458°F41°F81°F 202638°F 202062%2%
May 558°F41°F80°F 201341°F 199961%2%
May 659°F41°F85°F 201338°F 200261%2%
May 759°F42°F81°F 201637°F 200261%2%
May 859°F42°F82°F 202038°F 199960%1%
May 959°F42°F86°F 202039°F 200660%1%
May 1060°F42°F88°F 202037°F 199959%1%
May 1160°F43°F85°F 201939°F 201259%1%
May 1260°F43°F83°F 202638°F 201159%1%
May 1360°F43°F85°F 202340°F 201158%1%
May 1461°F43°F92°F 202341°F 199958%1%
May 1561°F43°F91°F 202342°F 200258%1%
May 1661°F44°F83°F 200639°F 200258%1%
May 1761°F44°F91°F 200837°F 201157%1%
May 1861°F44°F80°F 202339°F 200357%1%
May 1962°F44°F78°F 202339°F 200357%1%
May 2062°F44°F78°F 202342°F 202257%1%
May 2162°F45°F79°F 201543°F 202257%0%
May 2262°F45°F85°F 200143°F 201357%0%
May 2362°F45°F87°F 200144°F 200557%0%
May 2462°F45°F78°F 202542°F 201057%0%
May 2562°F45°F78°F 200146°F 200057%0%
May 2662°F46°F90°F 200547°F 199957%0%
May 2763°F46°F88°F 200545°F 202057%0%
May 2863°F46°F84°F 201747°F 200757%0%
May 2963°F46°F82°F 200944°F 199956%0%
May 3063°F46°F86°F 200742°F 201056%0%
May 3163°F46°F86°F 200143°F 202456%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Lake Marcel-Stillwater, in percent, and of at least 0.1 inch of snowfall.0204060801102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

May 1
sunrise 5:50 AM, sunset 8:20 PM
May 31
sunrise 5:14 AM, sunset 8:57 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00458508 (Tolt S Fk Rsvr), public domain. Records: NOAA GHCN-Daily, station USW00094248, 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.