Union climate

Union Weather in October

NOAA 1991-2020 normals for Cushman Powerhouse #2, 4.8 km from Union

Average highs run from 64°F on October 1 to 54°F on October 31, and lows from 47°F to 41°F. Normal precipitation for the month is 9.10 in over about 15 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 Union, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

October at a glance

Average high
58°F
Average low
44°F
Precipitation
9.10 in
Record high
87°FOct 16, 2022
Record low
17°FOct 31, 2002
Chance of a freeze
20%
Daylight
11 h 39 min to 10 h 02 min
Cloud cover
66%
Humidity
87%
Dew point
43°F
Wind
4.0 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 164°F47°F84°F 202229°F 200236%0%
Oct 264°F47°F84°F 202232°F 199937%0%
Oct 363°F47°F80°F 202226°F 201238%0%
Oct 463°F46°F76°F 200129°F 201238%0%
Oct 562°F46°F78°F 201428°F 201239%0%
Oct 662°F46°F80°F 201429°F 201240%0%
Oct 762°F46°F83°F 202331°F 201240%0%
Oct 861°F46°F79°F 202232°F 200941%0%
Oct 961°F45°F79°F 202227°F 201942%0%
Oct 1060°F45°F74°F 202224°F 201943%0%
Oct 1160°F45°F72°F 200625°F 200843%0%
Oct 1260°F45°F74°F 200628°F 200244%0%
Oct 1359°F45°F78°F 202229°F 200245%0%
Oct 1459°F44°F77°F 202228°F 200245%0%
Oct 1559°F44°F84°F 202227°F 202546%0%
Oct 1658°F44°F87°F 202229°F 199947%0%
Oct 1758°F44°F73°F 200228°F 201048%0%
Oct 1858°F44°F72°F 202331°F 201048%0%
Oct 1957°F43°F73°F 202231°F 199849%0%
Oct 2057°F43°F72°F 199832°F 199850%0%
Oct 2157°F43°F72°F 200530°F 200851%0%
Oct 2256°F43°F72°F 199828°F 202052%0%
Oct 2356°F43°F74°F 200729°F 202052%0%
Oct 2456°F43°F68°F 201730°F 201153%0%
Oct 2555°F42°F64°F 201625°F 202054%0%
Oct 2655°F42°F68°F 200326°F 200754%0%
Oct 2755°F42°F66°F 200324°F 201955%0%
Oct 2854°F42°F69°F 201722°F 202356%0%
Oct 2954°F42°F61°F 201522°F 202356%0%
Oct 3054°F41°F66°F 201721°F 200257%0%
Oct 3154°F41°F62°F 201517°F 200258%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Union, in percent, and of at least 0.1 inch of snowfall.02040601102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

October 1
sunrise 7:12 AM, sunset 6:51 PM
October 31
sunrise 7:55 AM, sunset 5:57 PM

Every day of October: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00451939 (Cushman Powerhouse #2), public domain. Records: NOAA GHCN-Daily, station USW00094227, 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.