Riverton climate

Riverton Weather in October

NOAA 1991-2020 normals for Alpine, 15.6 km from Riverton

Average highs run from 72°F on October 1 to 58°F on October 31, and lows from 43°F to 35°F. Normal precipitation for the month is 1.84 in over about 7 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 Riverton, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

October at a glance

Average high
65°F
Average low
39°F
Precipitation
1.84 in
Snowfall
1.6 in
Record high
92°FOct 4, 2024
Record low
14°FOct 30, 2019
Chance of a freeze
94%
Daylight
11 h 46 min to 10 h 28 min
Cloud cover
46%
Humidity
50%
Dew point
29°F
Wind
6.3 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 172°F43°F89°F 201031°F 195022%1%
Oct 272°F43°F88°F 197931°F 195922%1%
Oct 371°F43°F89°F 196331°F 195922%1%
Oct 471°F42°F92°F 202433°F 196622%1%
Oct 570°F42°F87°F 199333°F 195722%1%
Oct 670°F42°F86°F 197526°F 195522%1%
Oct 769°F41°F88°F 197931°F 195522%1%
Oct 869°F41°F85°F 197929°F 195922%1%
Oct 968°F41°F88°F 200329°F 196822%2%
Oct 1068°F40°F88°F 199630°F 198222%2%
Oct 1167°F40°F88°F 202428°F 201922%2%
Oct 1267°F40°F86°F 199628°F 198622%2%
Oct 1366°F40°F85°F 195831°F 198622%2%
Oct 1466°F39°F83°F 202428°F 195422%2%
Oct 1566°F39°F83°F 195826°F 196622%3%
Oct 1665°F39°F85°F 199127°F 197022%3%
Oct 1765°F38°F83°F 195823°F 196422%3%
Oct 1864°F38°F84°F 195823°F 196422%3%
Oct 1964°F38°F82°F 195826°F 197622%3%
Oct 2063°F38°F81°F 195027°F 197622%4%
Oct 2163°F37°F79°F 196725°F 199622%4%
Oct 2262°F37°F79°F 200324°F 196622%4%
Oct 2362°F37°F78°F 202427°F 195822%4%
Oct 2462°F37°F79°F 201426°F 195623%5%
Oct 2561°F36°F79°F 201421°F 202023%5%
Oct 2661°F36°F80°F 197719°F 202023%5%
Oct 2760°F36°F78°F 201624°F 197023%5%
Oct 2860°F35°F79°F 199022°F 201923%5%
Oct 2959°F35°F79°F 195017°F 201923%6%
Oct 3059°F35°F77°F 195014°F 201923%6%
Oct 3158°F35°F77°F 201420°F 200223%6%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Riverton, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

October 1
sunrise 7:24 AM, sunset 7:10 PM
October 31
sunrise 7:57 AM, sunset 6:25 PM

Every day of October: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00420061 (Alpine), public domain. Records: NOAA GHCN-Daily, station USW00024127, 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.