Coatesville Weather in October (1981–2025)

📍 39.97°N, 75.83°W •
📊

October at a Glance in Coatesville

(1981–2025)
Avg High
🔥
18.8°C
Avg Low
❄️
7.5°C
Avg Temp
🌡️
13.2°C
Avg Rain
🌧️
93 mm
Avg Humidity
💧
76%
Avg Wind
🌬️
0.5 m/s
Avg Solar
☀️
3.3
kWh/m²/day
vs Annual
📈
+1.6°C
temp difference
🌤️Mild afternoons❄️Cold mornings☁️Cloudier skies🌧️Wet month🍃Light winds💦Humid air

Coatesville October Weather Overview

October is one of the warmer months of the year in Coatesville, with average highs near 18.8°C and lows around 7.5°C (mean 13.2°C). It is about average for rainfall, averaging 93 mm of rainfall and 76% relative humidity across the period.

Coatesville October Temperature History (1981–2025)

Range

October is one of the warmer months of the year in Coatesville. Across 45 years of records, the warmest October in Coatesville was 2007 — when the month averaged 17°C — while the coldest was 1987 at 9.8°C. Typical October days reach 18.8°C with nights near 7.5°C. The long-term trend is warming, about 0.6°C per decade.

1981–1985 vs 2021–2025

Avg Temp13.1°C→14.7°C+1.6°C
Max Temp18.9°C→20.5°C+1.6°C
Min Temp7.2°C→8.8°C+1.6°C

Trend (per decade)

Avg Temp+0.6°C/decade ↗
Max Temp+0.5°C/decade ↗
Min Temp+0.7°C/decade ↗

Distribution of Avg Temp

9.0°C–11.0°C4 yr (9%)
11.0°C–13.0°C17 yr (38%)
13.0°C–15.0°C18 yr (40%)
15.0°C–17.0°C6 yr (13%)

Coatesville October Rainfall History (1981–2025)

Range

October is about average for rainfall in Coatesville, averaging 93 mm of rainfall. The wettest October on record was 2005 with 234 mm, while the driest was 2024 at 1 mm.

Coatesville October Humidity History (1981–2025)

Range

Relative humidity in Coatesville during October averages 76%. The most humid October was 2011 at 84%, and the least humid was 2024 at 61%.

Coatesville October Solar History (1981–2025)

Range

October receives about 3.3 kWh/m²/day of solar energy in Coatesville. The sunniest Octobers were 2001 and 2024 at 4 kWh/m²/day, and the cloudiest was 2002 at 2.7.

Coatesville October Wind History (1981–2025)

Range

Average wind speed in Coatesville during October is 0.5 m/s. The windiest Octobers were 2019, 2022 and 2025, among others at 0.5 m/s, while the calmest were 2021, 2023 and 2024, among others at 0.4 m/s.

What October Feels Like in Coatesville

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

How October Ranks in Coatesville

🔥6th warmest month of the year
🌵4th driest month of the year
☀️8th sunniest month of the year

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

Explore Coatesville Weather by Month

Coatesville October Averages by Decade

Metric1980s1990s2000s2010s2020sChange
Avg Temp12.3°C12.5°C12.9°C13.9°C14.5°C+2.2°C
Avg High18.2°C18.3°C18.4°C19.3°C20.3°C+2.1°C
Avg Low6.4°C6.7°C7.5°C8.5°C8.8°C+2.4°C
Avg Rain78 mm88 mm112 mm100 mm84 mm+6 mm

Extreme October Records in Coatesville

🔥Warmest October34.9°C2019
🧊Coldest October-3.0°C1988
🌧️Wettest October234 mm2005
🏜️Driest October1 mm2024
🌬️Windiest October0.5 m/s1981

Key Insights for October

✅

October temperatures in Coatesville have risen by about 1.6°C between 1981–1985 and 2021–2025.

✅

October has ranged from a record low of -3°C (1988) to a record high of 34.9°C (2019).

✅

Rainfall in October is about average for rainfall, averaging 93 mm, with a wettest year of 234 mm.

Is October a Good Time to Visit Coatesville?

A good time to visit Coatesville

October is a good time to visit Coatesville, with days averaging 18.8°C and nights around 7.5°C (mean 13.2°C, warmer than Coatesville's yearly average) and higher rainfall. June and August are marginally more temperate, but October still suits most travellers.

See Coatesville'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 →

Coatesville Weather in October — In Depth

☀️ October climate overview

October is one of the warmer months of the year in Coatesville, with average highs near 18.8°C and lows around 7.5°C (mean 13.2°C). It is about average for rainfall, averaging 93 mm of rainfall and 76% relative humidity across the period.

🌧️ Rain, humidity & wind in October

October averages 93 mm of rainfall in Coatesville, about average for rainfall compared with the rest of the year. The wettest October on record saw 234 mm (2005), and the driest just 1 mm (2024). Humidity sits around 76% and average wind speed is 0.5 m/s, with solar radiation averaging 3.3 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 1.6°C. Daytime highs moved from 18.9°C to 20.5°C and overnight lows from 7.2°C to 8.8°C over the same span.
October Weather in Coatesville, Year by Year
🔥 warmest❄️ coldest🌧️ wettest
YearAvg HighAvg TempAvg LowHottest DayColdest DayRainfallHumidityWindSolar
202520.0°C14.0°C7.9°C29.0°C2.4°C69 mm68%0.5 m/s3.6
202422.6°C15.6°C8.6°C29.8°C3.0°C1 mm61%0.4 m/s4
202320.7°C14.9°C9.1°C28.4°C4.1°C39 mm77%0.4 m/s3.5
202217.5°C12.1°C6.7°C23.9°C1.5°C145 mm81%0.5 m/s3.2
202121.7°C16.7°C11.7°C27.6°C5.5°C111 mm83%0.4 m/s3.1
202019.1°C13.9°C8.8°C25.2°C-2.4°C140 mm80%0.4 m/s3.1
201921.7°C15.9°C10.1°C34.9°C2.4°C87 mm70%0.5 m/s3
201818.2°C13.4°C8.7°C28.3°C-1.0°C80 mm83%0.5 m/s3.1
201722.4°C16.5°C10.5°C28.6°C2.6°C112 mm73%0.5 m/s3.3
201620.0°C14.1°C8.2°C29.1°C0.2°C42 mm75%0.5 m/s3.4
201517.8°C12.4°C6.9°C25.6°C-2.0°C101 mm77%0.5 m/s3.4
201419.3°C13.9°C8.5°C26.2°C1.4°C88 mm76%0.5 m/s3.1
201319.5°C14.0°C8.5°C30.5°C-1.4°C96 mm78%0.5 m/s3.2
201218.7°C13.7°C8.8°C27.0°C-0.8°C171 mm81%0.4 m/s2.8
201117.4°C12.4°C7.5°C30.9°C-1.9°C99 mm84%0.5 m/s3.2
201017.7°C12.6°C7.4°C24.5°C1.8°C125 mm81%0.5 m/s3.2
200916.6°C11.8°C6.9°C24.7°C-0.5°C148 mm82%0.5 m/s2.9
200818.2°C12.2°C6.3°C27.1°C-0.8°C64 mm73%0.5 m/s3.6
2007 🔥22.9°C17.0°C11.2°C31.9°C1.4°C150 mm76%0.4 m/s3.3
200617.2°C11.8°C6.4°C26.5°C-1.2°C122 mm78%0.5 m/s3.3
2005 🌧️18.8°C13.8°C8.7°C28.9°C0.2°C234 mm81%0.5 m/s2.8
200417.3°C12.4°C7.4°C23.4°C2.2°C57 mm83%0.4 m/s3.1
200316.9°C11.5°C6.0°C24.9°C-1.1°C131 mm81%0.5 m/s3.3
200217.2°C12.4°C7.7°C30.1°C0.3°C160 mm81%0.4 m/s2.7
200120.0°C13.7°C7.4°C27.7°C-1.3°C21 mm64%0.5 m/s4
200019.2°C12.8°C6.5°C26.7°C-0.1°C30 mm73%0.4 m/s3.6
199917.2°C11.4°C5.6°C23.6°C0.8°C79 mm81%0.4 m/s3.5
199818.7°C13.2°C7.6°C25.3°C1.7°C83 mm73%0.4 m/s3.2
199719.2°C13.1°C6.9°C30.4°C-1.5°C57 mm69%0.4 m/s3.5
199617.3°C11.8°C6.3°C24.5°C0.8°C150 mm81%0.5 m/s3.3
199520.2°C14.3°C8.3°C27.6°C1.4°C187 mm78%0.5 m/s3.5
199417.8°C11.7°C5.6°C23.9°C0.8°C31 mm74%0.4 m/s3.6
199316.4°C11.0°C5.6°C23.9°C-0.6°C97 mm79%0.4 m/s3.3
199216.7°C10.7°C4.7°C24.5°C-3.0°C49 mm75%0.5 m/s3.1
199118.9°C12.9°C7.0°C27.1°C-0.3°C56 mm77%0.5 m/s3.4
199020.5°C14.8°C9.1°C28.3°C-2.4°C95 mm73%0.5 m/s3.6
198918.7°C12.8°C7.0°C25.6°C0.4°C116 mm81%0.5 m/s3.3
198815.6°C9.9°C4.2°C25.9°C-3.0°C65 mm70%0.4 m/s3.5
1987 ❄️16.0°C9.8°C3.6°C20.8°C-2.0°C74 mm76%0.5 m/s3.5
198618.9°C13.0°C7.1°C28.7°C-0.1°C67 mm74%0.4 m/s3.2
198518.6°C13.0°C7.4°C24.9°C-2.3°C49 mm78%0.4 m/s3.2
198421.3°C15.6°C9.8°C26.6°C2.9°C81 mm76%0.4 m/s3.4
198318.6°C13.0°C7.3°C29.1°C-2.2°C121 mm74%0.5 m/s—
198219.2°C13.0°C6.7°C27.6°C-1.9°C44 mm69%0.4 m/s—
198116.9°C10.9°C4.8°C25.2°C-1.8°C85 mm72%0.5 m/s—

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

Other Cities in Pennsylvania

Coatesville October Weather — FAQ

What is the average temperature in Coatesville in October?▼

The average high in October is around 18.8°C with lows near 7.5°C (mean 13.2°C), based on 45 years of NASA POWER data.

Does it rain a lot in Coatesville in October?▼

October averages 93 mm of rainfall in Coatesville, about average for rainfall. The wettest on record was 234 mm in 2005.

What was the hottest October on record in Coatesville?▼

The hottest October reached 34.9°C in 2019. The coldest dipped to -3°C in 1988.

Has October in Coatesville 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 1.6°C. Daytime highs moved from 18.9°C to 20.5°C and overnight lows from 7.2°C to 8.8°C over the same span.

Is October a good time to visit Coatesville?▼

October is one of the warmer months of the year in Coatesville and about average for rainfall, so plan for around 18.8°C daytime highs and 7.5°C at night.

Is October the coldest month in Coatesville?▼

Not quite — October is the 7th coolest month in Coatesville, averaging 13.2°C.

What should I pack for Coatesville in October?▼

For October in Coatesville, pack warm layers and a jacket for chilly mornings, with typical highs of 18.8°C and lows of 7.5°C. Bring an umbrella or light rain jacket too.

Is Coatesville humid in October?▼

Relative humidity in October averages 76% — quite humid.

How windy is Coatesville in October?▼

Average wind speed in October is 0.5 m/s. The windiest October on record averaged 0.5 m/s (1981).

Which October had the most rainfall in Coatesville?▼

The wettest October on record was 2005 with 234 mm. On average, October sees 93 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 Pennsylvania cities

Explore how the weather in Coatesville 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.