Riverton Weather in October
Average highs run from 67°F on October 1 to 51°F on October 31, and lows from 37°F to 24°F. Normal precipitation for the month is 0.93 in over about 5 wet days.
October day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
October at a glance
- Average high
- 59°F
- Average low
- 30°F
- Precipitation
- 0.93 in
- Snowfall
- 4.4 in
- Record high
- 84°FOct 1, 2005
- Record low
- -9°FOct 26, 2020
- Chance of a freeze
- 100%
- Daylight
- 11 h 43 min to 10 h 20 min
- Cloud cover
- 53%
- Humidity
- 53%
- Dew point
- 25°F
- Wind
- 8.9 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.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Oct 1 | 67°F | 37°F | 84°F 2005 | 30°F 2002 | 18% | 4% |
| Oct 2 | 66°F | 36°F | 83°F 2024 | 27°F 1999 | 18% | 4% |
| Oct 3 | 66°F | 36°F | 82°F 2010 | 24°F 2017 | 18% | 4% |
| Oct 4 | 65°F | 36°F | 83°F 2024 | 27°F 2017 | 18% | 4% |
| Oct 5 | 65°F | 35°F | 77°F 1996 | 23°F 2009 | 18% | 4% |
| Oct 6 | 64°F | 35°F | 82°F 2020 | 18°F 2009 | 17% | 5% |
| Oct 7 | 64°F | 34°F | 77°F 2020 | 17°F 2000 | 17% | 5% |
| Oct 8 | 63°F | 34°F | 80°F 2020 | 19°F 2000 | 17% | 5% |
| Oct 9 | 63°F | 33°F | 82°F 2003 | 13°F 2009 | 17% | 5% |
| Oct 10 | 62°F | 33°F | 80°F 2015 | 0°F 2009 | 17% | 5% |
| Oct 11 | 62°F | 33°F | 79°F 1996 | 10°F 2019 | 16% | 5% |
| Oct 12 | 61°F | 32°F | 77°F 1996 | 18°F 2008 | 16% | 6% |
| Oct 13 | 61°F | 32°F | 78°F 1996 | 11°F 2008 | 16% | 6% |
| Oct 14 | 60°F | 31°F | 77°F 2015 | 12°F 2018 | 16% | 6% |
| Oct 15 | 60°F | 31°F | 74°F 2010 | 11°F 2018 | 15% | 6% |
| Oct 16 | 59°F | 30°F | 77°F 2024 | 19°F 1999 | 15% | 6% |
| Oct 17 | 59°F | 30°F | 74°F 2003 | 16°F 1999 | 15% | 6% |
| Oct 18 | 58°F | 30°F | 77°F 2003 | 22°F 1996 | 15% | 7% |
| Oct 19 | 58°F | 29°F | 72°F 2023 | 23°F 1999 | 15% | 7% |
| Oct 20 | 57°F | 29°F | 76°F 2003 | 21°F 1996 | 15% | 7% |
| Oct 21 | 57°F | 28°F | 78°F 2003 | 15°F 1996 | 14% | 7% |
| Oct 22 | 56°F | 28°F | 73°F 2003 | 18°F 2006 | 14% | 7% |
| Oct 23 | 56°F | 27°F | 73°F 2003 | 10°F 2020 | 14% | 7% |
| Oct 24 | 55°F | 27°F | 68°F 2011 | 9°F 2020 | 14% | 8% |
| Oct 25 | 55°F | 27°F | 71°F 2017 | -8°F 2020 | 14% | 8% |
| Oct 26 | 54°F | 26°F | 69°F 1999 | -9°F 2020 | 14% | 8% |
| Oct 27 | 54°F | 26°F | 69°F 2016 | 3°F 2020 | 14% | 8% |
| Oct 28 | 53°F | 25°F | 69°F 2001 | 1°F 2019 | 13% | 8% |
| Oct 29 | 53°F | 25°F | 66°F 2012 | -6°F 2019 | 13% | 8% |
| Oct 30 | 52°F | 24°F | 65°F 2008 | -9°F 2019 | 13% | 9% |
| Oct 31 | 51°F | 24°F | 69°F 1999 | 2°F 2019 | 13% | 9% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- October 1
- sunrise 7:11 AM, sunset 6:54 PM
- October 31
- sunrise 7:47 AM, sunset 6:07 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00487760 (Riverton), public domain. Records: NOAA GHCN-Daily, station USW00024061, 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.