Merrill climate

Merrill Weather in October

NOAA 1991-2020 normals for Tulelake, 12.6 km from Merrill

Average highs run from 74°F on October 1 to 58°F on October 31, and lows from 34°F to 28°F. Normal precipitation for the month is 0.72 in over about 6 wet days.

October day by day

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

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

October at a glance

Average high
66°F
Average low
30°F
Precipitation
0.72 in
Snowfall
0.1 in
Record high
88°FOct 1, 2010
Record low
8°FOct 31, 2002
Chance of a freeze
100%
Daylight
11 h 44 min to 10 h 23 min
Cloud cover
49%
Humidity
58%
Dew point
31°F
Wind
7.4 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
Oct 174°F34°F88°F 201023°F 201614%0%
Oct 273°F34°F86°F 202021°F 201714%0%
Oct 373°F33°F85°F 202027°F 201315%0%
Oct 472°F33°F81°F 196123°F 200515%0%
Oct 572°F33°F83°F 202225°F 201315%0%
Oct 671°F33°F83°F 201423°F 200716%0%
Oct 771°F32°F84°F 202224°F 200916%0%
Oct 870°F32°F83°F 196522°F 201316%0%
Oct 970°F32°F83°F 201519°F 200117%1%
Oct 1069°F32°F79°F 199923°F 201917%1%
Oct 1169°F31°F81°F 199919°F 201917%1%
Oct 1268°F31°F81°F 201516°F 201718%1%
Oct 1368°F31°F84°F 201521°F 196018%1%
Oct 1467°F31°F85°F 201517°F 202119%1%
Oct 1566°F30°F85°F 196119°F 201819%1%
Oct 1666°F30°F85°F 196118°F 196520%1%
Oct 1765°F30°F78°F 195921°F 196420%1%
Oct 1865°F30°F77°F 202220°F 200121%1%
Oct 1964°F30°F81°F 202322°F 201322%2%
Oct 2064°F29°F79°F 202321°F 202522%2%
Oct 2163°F29°F80°F 199918°F 201223%2%
Oct 2263°F29°F75°F 200316°F 196123%2%
Oct 2362°F29°F76°F 199919°F 200124%2%
Oct 2462°F29°F77°F 195915°F 200125%2%
Oct 2561°F28°F74°F 196618°F 200625%2%
Oct 2660°F28°F75°F 200313°F 202026%2%
Oct 2760°F28°F76°F 200314°F 202327%2%
Oct 2859°F28°F75°F 200312°F 201927%3%
Oct 2959°F28°F74°F 201715°F 202328%3%
Oct 3058°F28°F71°F 202011°F 201929%3%
Oct 3158°F28°F69°F 19678°F 200229%3%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Merrill, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

October 1
sunrise 7:04 AM, sunset 6:48 PM
October 31
sunrise 7:38 AM, sunset 6:01 PM

Every day of October: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00049053 (Tulelake), public domain. Records: NOAA GHCN-Daily, station USW00094236, 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.