Bismarck climate

Bismarck Weather in October

NOAA 1991-2020 normals for Bismarck, 4.5 km from Bismarck

Average highs run from 66°F on October 1 to 48°F on October 31, and lows from 40°F to 26°F. Normal precipitation for the month is 1.43 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 Bismarck, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

October at a glance

Average high
57°F
Average low
33°F
Precipitation
1.43 in
Snowfall
2.5 in
Record high
91°FOct 6, 2021
Record low
5°FOct 27, 2020
Chance of a freeze
100%
Daylight
11 h 41 min to 10 h 05 min
Cloud cover
65%
Humidity
66%
Dew point
32°F
Wind
12.3 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 166°F40°F85°F 202536°F 201823%1%
Oct 265°F39°F88°F 202335°F 202423%2%
Oct 365°F39°F84°F 202534°F 201923%2%
Oct 464°F38°F88°F 202527°F 201423%2%
Oct 564°F38°F86°F 202123°F 201823%2%
Oct 663°F37°F91°F 202126°F 201223%2%
Oct 763°F37°F83°F 202126°F 201223%2%
Oct 862°F36°F75°F 202119°F 202223%3%
Oct 961°F36°F83°F 202429°F 201623%3%
Oct 1061°F35°F87°F 202428°F 201723%3%
Oct 1160°F35°F88°F 201523°F 201423%4%
Oct 1260°F35°F83°F 201526°F 201223%4%
Oct 1359°F34°F70°F 202427°F 201623%4%
Oct 1458°F34°F69°F 201223°F 201623%4%
Oct 1558°F33°F69°F 201219°F 201823%5%
Oct 1657°F33°F79°F 201216°F 201823%5%
Oct 1757°F32°F74°F 201624°F 201523%6%
Oct 1856°F32°F79°F 201724°F 201523%6%
Oct 1955°F31°F75°F 201518°F 202223%6%
Oct 2055°F31°F79°F 201722°F 202023%7%
Oct 2154°F30°F81°F 202227°F 202023%7%
Oct 2254°F30°F81°F 201420°F 202023%7%
Oct 2353°F29°F71°F 201625°F 201923%8%
Oct 2452°F29°F74°F 201410°F 202023%8%
Oct 2552°F28°F71°F 201417°F 202023%9%
Oct 2651°F28°F67°F 202519°F 202023%9%
Oct 2751°F27°F71°F 20145°F 202023%10%
Oct 2850°F27°F69°F 20168°F 202023%10%
Oct 2950°F27°F71°F 20167°F 202323%11%
Oct 3049°F26°F66°F 202112°F 202323%11%
Oct 3148°F26°F67°F 201115°F 201923%12%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Bismarck, 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 (CDT).

October 1
sunrise 7:42 AM, sunset 7:23 PM
October 31
sunrise 8:24 AM, sunset 6:29 PM

Every day of October: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00024011 (Bismarck), public domain. Records: NOAA GHCN-Daily, station USC00320818, 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.