Stillwater Weather in October (1981–2025)

📍 36.12°N, 97.07°W •
📊

October at a Glance in Stillwater

(1981–2025)
Avg High
🔥
23.5°C
Avg Low
❄️
10.4°C
Avg Temp
🌡️
17.0°C
Avg Rain
🌧️
91 mm
Avg Humidity
💧
65%
Avg Wind
🌬️
3.3 m/s
Avg Solar
☀️
3.9
kWh/m²/day
vs Annual
📈
+1.1°C
temp difference
🌤️Mild afternoons🌤️Cool mornings🌤️Fairly sunny🌧️Wet month💨Breezy😊Comfortable humidity

Stillwater October Weather Overview

October is one of the warmer months of the year in Stillwater, with average highs near 23.5°C and lows around 10.4°C (mean 17°C). It is a relatively wet time of year, averaging 91 mm of rainfall and 65% relative humidity across the period.

Stillwater October Temperature History (1981–2025)

Range

October is one of the warmer months of the year in Stillwater. Across 45 years of records, the warmest October in Stillwater was 2024 — when the month averaged 21.8°C — while the coldest was 2009 at 12.8°C. Typical October days reach 23.5°C with nights near 10.4°C. The long-term trend is warming, about 0.5°C per decade.

1981–1985 vs 2021–2025

Avg Temp16.9°C→19.5°C+2.6°C
Max Temp23.0°C→26.5°C+3.5°C
Min Temp10.8°C→12.6°C+1.8°C

Trend (per decade)

Avg Temp+0.5°C/decade ↗
Max Temp+0.6°C/decade ↗
Min Temp+0.4°C/decade ↗

Distribution of Avg Temp

12.0°C–14.5°C4 yr (9%)
14.5°C–17.0°C21 yr (47%)
17.0°C–19.5°C17 yr (38%)
19.5°C–22.0°C3 yr (7%)

Stillwater October Rainfall History (1981–2025)

Range

October is a relatively wet time of year in Stillwater, averaging 91 mm of rainfall. The wettest October on record was 1983 with 235 mm, while the driest was 1993 at 24 mm.

Stillwater October Humidity History (1981–2025)

Range

Relative humidity in Stillwater during October averages 65%. The most humid October was 1986 at 82%, and the least humid was 2024 at 43%.

Stillwater October Solar History (1981–2025)

Range

October receives about 3.9 kWh/m²/day of solar energy in Stillwater. The sunniest October was 2024 at 4.6 kWh/m²/day, and the cloudiest was 2002 at 2.9.

Stillwater October Wind History (1981–2025)

Range

Average wind speed in Stillwater during October is 3.3 m/s. The windiest October was 2001 at 3.8 m/s, while the calmest was 1986 at 2.6 m/s.

What October Feels Like in Stillwater

🌅
Cool
Morning
🌞
Mild
Afternoon
🌆
Cool
Evening
Rain chanceHigh
Outdoor comfort★★★★☆

How October Ranks in Stillwater

🔥6th warmest month of the year
🌧️4th wettest month of the year
☀️8th sunniest month of the year

Ranked against the other 11 months using 1981–2025 averages.

Explore Stillwater Weather by Month

Stillwater October Averages by Decade

Metric1980s1990s2000s2010s2020sChange
Avg Temp16.3°C16.4°C16.5°C17.3°C18.8°C+2.5°C
Avg High22.5°C23.2°C22.8°C24.0°C25.8°C+3.3°C
Avg Low10.1°C9.7°C10.1°C10.6°C11.9°C+1.8°C
Avg Rain114 mm80 mm96 mm82 mm83 mm-31 mm

Extreme October Records in Stillwater

🔥Warmest October36.7°C2000
🧊Coldest October-6.1°C1993
🌧️Wettest October235 mm1983
🏜️Driest October24 mm1993
🌬️Windiest October3.8 m/s2001

Key Insights for October

✅

October temperatures in Stillwater have risen by about 2.6°C between 1981–1985 and 2021–2025.

✅

October has ranged from a record low of -6.1°C (1993) to a record high of 36.7°C (2000).

✅

Rainfall in October is a relatively wet time of year, averaging 91 mm, with a wettest year of 235 mm.

Is October a Good Time to Visit Stillwater?

One of the best times to visit Stillwater

October is one of the best times to visit Stillwater. Expect days averaging 23.5°C and nights around 10.4°C (mean 17°C) — warmer than Stillwater's yearly average — with higher rainfall (91 mm), so conditions are generally comfortable for sightseeing and outdoor plans.

See Stillwater's complete weather history All 12 months side by side, 1981–2025 records, annual trends and long-term averages in one place. View full history →

Stillwater Weather in October — In Depth

☀️ October climate overview

October is one of the warmer months of the year in Stillwater, with average highs near 23.5°C and lows around 10.4°C (mean 17°C). It is a relatively wet time of year, averaging 91 mm of rainfall and 65% relative humidity across the period.

🌧️ Rain, humidity & wind in October

October averages 91 mm of rainfall in Stillwater, a relatively wet time of year compared with the rest of the year. The wettest October on record saw 235 mm (1983), and the driest just 24 mm (1993). Humidity sits around 65% and average wind speed is 3.3 m/s, with solar radiation averaging 3.9 kWh/m²/day.

📈 How October has changed

Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 2.6°C. Daytime highs moved from 23°C to 26.5°C and overnight lows from 10.8°C to 12.6°C over the same span.
October Weather in Stillwater, Year by Year
🔥 warmest❄️ coldest🌧️ wettest
YearAvg HighAvg TempAvg LowHottest DayColdest DayRainfallHumidityWindSolar
202527.0°C20.4°C13.8°C33.7°C2.6°C115 mm61%2.9 m/s3.8
2024 🔥29.7°C21.8°C14.0°C35.6°C4.2°C30 mm43%3.3 m/s4.6
202324.6°C18.1°C11.6°C34.0°C-2.9°C97 mm60%3.5 m/s3.9
202225.8°C18.4°C11.1°C32.8°C1.8°C48 mm47%3 m/s4.2
202125.4°C18.9°C12.3°C35.3°C4.1°C121 mm63%3.5 m/s4.2
202022.1°C15.3°C8.5°C33.4°C-3.4°C87 mm65%3.4 m/s3.8
201920.4°C13.9°C7.3°C31.9°C-6.0°C108 mm71%3.7 m/s3.9
201821.3°C15.8°C10.4°C31.7°C0.9°C113 mm78%2.9 m/s3.3
201723.4°C16.8°C10.2°C31.2°C-2.6°C161 mm66%3.6 m/s4.2
201626.9°C20.3°C13.6°C32.9°C6.0°C76 mm67%3.6 m/s4.1
201524.6°C18.1°C11.6°C33.8°C5.2°C56 mm59%2.7 m/s3.9
201425.8°C18.9°C12.1°C34.6°C2.1°C87 mm63%3.2 m/s4.1
201322.7°C16.4°C10.0°C32.9°C0.4°C77 mm67%3.5 m/s4
201223.6°C16.7°C9.9°C31.8°C-0.8°C30 mm57%3.7 m/s4.1
201125.0°C17.7°C10.3°C31.4°C2.3°C73 mm54%3.2 m/s4.3
201026.0°C18.3°C10.5°C32.5°C4.1°C36 mm54%2.9 m/s4.5
2009 ❄️18.4°C12.8°C7.2°C26.7°C2.4°C178 mm77%3.6 m/s3
200823.5°C16.4°C9.4°C29.8°C-0.9°C56 mm65%3.5 m/s4
200722.8°C16.8°C10.8°C29.7°C3.0°C98 mm75%3.4 m/s4.3
200623.4°C16.6°C9.8°C34.3°C-0.1°C42 mm59%3.5 m/s3.9
200523.8°C17.3°C10.8°C32.9°C1.2°C44 mm62%3.1 m/s3.9
200424.3°C18.3°C12.2°C30.7°C5.0°C135 mm70%3.1 m/s3.3
200324.1°C17.3°C10.4°C31.0°C4.3°C80 mm66%2.8 m/s4
200220.0°C14.3°C8.6°C33.4°C0.6°C99 mm70%2.7 m/s2.9
200123.5°C16.5°C9.4°C29.9°C2.1°C52 mm62%3.8 m/s4.4
200024.5°C18.6°C12.7°C36.7°C0.4°C176 mm65%3.5 m/s3.4
199924.8°C17.3°C9.8°C31.5°C2.0°C56 mm56%3.1 m/s4.3
199823.3°C17.3°C11.4°C27.4°C4.8°C231 mm76%3.4 m/s3.5
199723.1°C16.7°C10.4°C34.3°C-3.5°C98 mm71%3.3 m/s3.6
199621.7°C15.6°C9.4°C28.0°C2.0°C86 mm70%3.6 m/s3.8
199523.9°C16.7°C9.4°C29.7°C1.7°C29 mm59%3.5 m/s4.3
199424.0°C17.7°C11.4°C32.4°C2.4°C69 mm66%2.9 m/s3.6
199320.8°C14.1°C7.3°C29.8°C-6.1°C24 mm67%3 m/s3.8
199223.9°C16.7°C9.6°C31.0°C3.8°C44 mm64%2.8 m/s3.7
199123.4°C16.8°C10.2°C32.2°C-2.5°C120 mm63%3.6 m/s4.1
199022.6°C15.4°C8.3°C30.1°C1.4°C43 mm64%3.4 m/s4.1
198923.3°C16.5°C9.8°C30.3°C-1.9°C78 mm65%3.4 m/s4.1
198821.3°C15.0°C8.8°C30.2°C4.2°C43 mm66%2.8 m/s3.4
198722.1°C15.0°C7.9°C27.1°C2.6°C31 mm63%3.2 m/s3.9
198621.1°C15.6°C10.2°C28.1°C1.9°C154 mm82%2.6 m/s3.3
198522.0°C16.5°C11.0°C27.5°C4.4°C158 mm77%3.1 m/s3.4
198423.1°C17.0°C10.8°C32.9°C3.4°C137 mm68%3.3 m/s3.1
1983 🌧️22.9°C17.3°C11.7°C32.5°C3.2°C235 mm70%3.1 m/s—
198224.9°C17.4°C10.0°C32.5°C2.5°C30 mm53%3.3 m/s—
198121.9°C16.3°C10.7°C33.6°C-0.4°C162 mm72%3.7 m/s—

Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.

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Stillwater October Weather — FAQ

What is the average temperature in Stillwater in October?▼

The average high in October is around 23.5°C with lows near 10.4°C (mean 17°C), based on 45 years of NASA POWER data.

Does it rain a lot in Stillwater in October?▼

October averages 91 mm of rainfall in Stillwater, a relatively wet time of year. The wettest on record was 235 mm in 1983.

What was the hottest October on record in Stillwater?▼

The hottest October reached 36.7°C in 2000. The coldest dipped to -6.1°C in 1993.

Has October in Stillwater gotten warmer over time?▼

Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 2.6°C. Daytime highs moved from 23°C to 26.5°C and overnight lows from 10.8°C to 12.6°C over the same span.

Is October a good time to visit Stillwater?▼

October is one of the warmer months of the year in Stillwater and a relatively wet time of year, so plan for around 23.5°C daytime highs and 10.4°C at night.

Is October the coldest month in Stillwater?▼

Not quite — October is the 7th coolest month in Stillwater, averaging 17°C.

What should I pack for Stillwater in October?▼

For October in Stillwater, pack light layers you can adjust through the day, with typical highs of 23.5°C and lows of 10.4°C. Bring an umbrella or light rain jacket too.

Is Stillwater humid in October?▼

Relative humidity in October averages 65% — moderately humid.

How windy is Stillwater in October?▼

Average wind speed in October is 3.3 m/s. The windiest October on record averaged 3.8 m/s (2001).

Which October had the most rainfall in Stillwater?▼

The wettest October on record was 1983 with 235 mm. On average, October sees 91 mm.

Where does this October weather data come from?▼

All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.

Other Oklahoma cities

Explore how the weather in Stillwater behaves each October, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for October specifically, along with year-by-year records and how the month has changed over the decades.