Arnold climate

Arnold Weather in October

NOAA 1991-2020 normals for Natrona Lock 4, 5.5 km from Arnold

Average highs run from 70°F on October 1 to 58°F on October 31, and lows from 49°F to 37°F. Normal precipitation for the month is 3.09 in over about 12 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 Arnold, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

October at a glance

Average high
64°F
Average low
43°F
Precipitation
3.09 in
Record high
88°FOct 2, 2019
Record low
17°FOct 24, 1969
Chance of a freeze
40%
Daylight
11 h 45 min to 10 h 29 min
Cloud cover
63%
Humidity
75%
Dew point
44°F
Wind
4.5 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 170°F49°F87°F 198632°F 199336%0%
Oct 270°F49°F88°F 201933°F 201736%0%
Oct 369°F49°F85°F 201927°F 200336%0%
Oct 469°F48°F87°F 201923°F 197436%0%
Oct 568°F48°F84°F 200724°F 197436%0%
Oct 668°F47°F84°F 200730°F 196837%0%
Oct 768°F47°F84°F 200730°F 199937%0%
Oct 867°F47°F86°F 200727°F 197437%0%
Oct 967°F46°F84°F 200727°F 200137%0%
Oct 1066°F46°F83°F 201827°F 197237%0%
Oct 1166°F45°F83°F 201027°F 197237%0%
Oct 1266°F45°F83°F 196927°F 199338%0%
Oct 1365°F44°F81°F 200826°F 201238%0%
Oct 1465°F44°F85°F 196925°F 198838%0%
Oct 1564°F44°F82°F 197525°F 198838%0%
Oct 1664°F43°F80°F 196827°F 196939%0%
Oct 1763°F43°F79°F 196828°F 198139%0%
Oct 1863°F42°F82°F 196826°F 196939%0%
Oct 1963°F42°F77°F 198523°F 197639%0%
Oct 2062°F42°F79°F 198418°F 197239%0%
Oct 2162°F41°F78°F 197918°F 197240%0%
Oct 2261°F41°F81°F 197921°F 197240%1%
Oct 2361°F40°F82°F 197918°F 197640%1%
Oct 2461°F40°F79°F 197517°F 196940%1%
Oct 2560°F40°F79°F 197518°F 196940%1%
Oct 2660°F39°F82°F 201223°F 198740%1%
Oct 2760°F39°F80°F 199122°F 197940%1%
Oct 2859°F38°F79°F 198418°F 197640%1%
Oct 2959°F38°F76°F 201420°F 196940%1%
Oct 3058°F38°F76°F 197119°F 196940%1%
Oct 3158°F37°F77°F 197117°F 197541%1%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Arnold, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

October 1
sunrise 7:16 AM, sunset 7:01 PM
October 31
sunrise 7:48 AM, sunset 6:17 PM

Every day of October: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00366151 (Natrona Lock 4), public domain. Records: NOAA GHCN-Daily, station USC00361139, 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.