Grantsville climate

Grantsville Weather in October

NOAA 1991-2020 normals for Grantsville 2W, 3.7 km from Grantsville

Average highs run from 71°F on October 1 to 57°F on October 31, and lows from 44°F to 33°F. Normal precipitation for the month is 0.91 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 Grantsville, 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
38°F
Precipitation
0.91 in
Snowfall
0.1 in
Record high
93°FOct 14, 1989
Record low
10°FOct 30, 2019
Chance of a freeze
95%
Daylight
11 h 45 min to 10 h 28 min
Cloud cover
45%
Humidity
48%
Dew point
29°F
Wind
7.2 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 171°F44°F88°F 200127°F 193318%0%
Oct 271°F43°F87°F 193430°F 189818%0%
Oct 370°F43°F86°F 196330°F 201718%0%
Oct 470°F42°F89°F 202431°F 192418%0%
Oct 569°F42°F84°F 198830°F 192718%0%
Oct 669°F42°F82°F 200328°F 191318%0%
Oct 768°F41°F86°F 200329°F 191218%0%
Oct 868°F41°F85°F 200330°F 191218%0%
Oct 967°F40°F87°F 200328°F 191318%0%
Oct 1067°F40°F87°F 202425°F 191318%1%
Oct 1166°F40°F87°F 199618°F 201918%1%
Oct 1266°F39°F83°F 199626°F 198618%1%
Oct 1366°F39°F82°F 199926°F 191618%1%
Oct 1465°F39°F93°F 198922°F 196618%1%
Oct 1565°F38°F81°F 192725°F 196618%1%
Oct 1664°F38°F85°F 199125°F 192518%1%
Oct 1764°F38°F81°F 199127°F 190518%1%
Oct 1863°F37°F81°F 200922°F 191719%1%
Oct 1963°F37°F83°F 200324°F 191119%1%
Oct 2062°F37°F83°F 192122°F 192019%1%
Oct 2162°F36°F81°F 200322°F 190819%2%
Oct 2261°F36°F82°F 200321°F 190619%2%
Oct 2361°F36°F76°F 191519°F 193519%2%
Oct 2460°F35°F77°F 192720°F 192019%2%
Oct 2560°F35°F76°F 201420°F 195620%2%
Oct 2659°F35°F78°F 192212°F 202020%2%
Oct 2759°F34°F78°F 192621°F 191920%3%
Oct 2858°F34°F77°F 199016°F 201920%3%
Oct 2958°F34°F76°F 196811°F 197120%3%
Oct 3058°F33°F76°F 193310°F 201920%3%
Oct 3157°F33°F73°F 198814°F 197220%3%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Grantsville, 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 7:27 AM, sunset 7:12 PM
October 31
sunrise 7:59 AM, sunset 6:27 PM

Every day of October: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00423348 (Grantsville 2W), public domain. Records: NOAA GHCN-Daily, station USC00428771, 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.