Lancaster Weather in October (1981–2025)

📍 40.05°N, 76.30°W •
📊

October at a Glance in Lancaster

(1981–2025)
Avg High
🔥
18.4°C
Avg Low
❄️
7.1°C
Avg Temp
🌡️
12.8°C
Avg Rain
🌧️
94 mm
Avg Humidity
💧
77%
Avg Wind
🌬️
1.1 m/s
Avg Solar
☀️
3.1
kWh/m²/day
vs Annual
📈
+1.5°C
temp difference
🌤️Mild afternoons❄️Cold mornings☁️Cloudier skies🌧️Wet month🍃Light winds💦Humid air

Lancaster October Weather Overview

October is one of the warmer months of the year in Lancaster, with average highs near 18.4°C and lows around 7.1°C (mean 12.8°C). It is about average for rainfall, averaging 94 mm of rainfall and 77% relative humidity across the period.

Lancaster October Temperature History (1981–2025)

Range

October is one of the warmer months of the year in Lancaster. Across 45 years of records, the warmest October in Lancaster was 2007 — when the month averaged 16.7°C — while the coldest was 1987 at 9.2°C. Typical October days reach 18.4°C with nights near 7.1°C. The long-term trend is warming, about 0.6°C per decade.

1981–1985 vs 2021–2025

Avg Temp12.8°C→14.2°C+1.4°C
Max Temp18.7°C→20.0°C+1.3°C
Min Temp6.9°C→8.2°C+1.3°C

Trend (per decade)

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

Distribution of Avg Temp

9.0°C–11.0°C7 yr (16%)
11.0°C–13.0°C20 yr (44%)
13.0°C–15.0°C13 yr (29%)
15.0°C–17.0°C5 yr (11%)

Lancaster October Rainfall History (1981–2025)

Range

October is about average for rainfall in Lancaster, averaging 94 mm of rainfall. The wettest October on record was 2005 with 226 mm, while the driest was 2024 at 4 mm.

Lancaster October Humidity History (1981–2025)

Range

Relative humidity in Lancaster during October averages 77%. The most humid Octobers were 2011 and 2018 at 84%, and the least humid was 2024 at 64%.

Lancaster October Solar History (1981–2025)

Range

October receives about 3.1 kWh/m²/day of solar energy in Lancaster. The sunniest October was 2024 at 3.8 kWh/m²/day, and the cloudiest were 2009 and 2012 at 2.5.

Lancaster October Wind History (1981–2025)

Range

Average wind speed in Lancaster during October is 1.1 m/s. The windiest Octobers were 2014, 2019 and 2025, among others at 1.2 m/s, while the calmest were 1984, 1994 and 2004 at 0.9 m/s.

What October Feels Like in Lancaster

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

How October Ranks in Lancaster

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

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

Explore Lancaster Weather by Month

Lancaster October Averages by Decade

Metric1980s1990s2000s2010s2020sChange
Avg Temp12.0°C12.1°C12.5°C13.4°C14.1°C+2.1°C
Avg High17.9°C17.9°C18.0°C18.8°C19.8°C+1.9°C
Avg Low6.1°C6.2°C7.0°C8.1°C8.2°C+2.1°C
Avg Rain78 mm91 mm107 mm106 mm82 mm+4 mm

Extreme October Records in Lancaster

🔥Warmest October34.7°C2019
🧊Coldest October-4.2°C1992
🌧️Wettest October226 mm2005
🏜️Driest October4 mm2024
🌬️Windiest October1.2 m/s1990

Key Insights for October

✅

October temperatures in Lancaster have risen by about 1.4°C between 1981–1985 and 2021–2025.

✅

October has ranged from a record low of -4.2°C (1992) to a record high of 34.7°C (2019).

✅

Rainfall in October is about average for rainfall, averaging 94 mm, with a wettest year of 226 mm.

Is October a Good Time to Visit Lancaster?

A good time to visit Lancaster

October is a good time to visit Lancaster, with days averaging 18.4°C and nights around 7.1°C (mean 12.8°C, warmer than Lancaster's yearly average) and higher rainfall. June and August are marginally more temperate, but October still suits most travellers.

See Lancaster'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 →

Lancaster Weather in October — In Depth

☀️ October climate overview

October is one of the warmer months of the year in Lancaster, with average highs near 18.4°C and lows around 7.1°C (mean 12.8°C). It is about average for rainfall, averaging 94 mm of rainfall and 77% relative humidity across the period.

🌧️ Rain, humidity & wind in October

October averages 94 mm of rainfall in Lancaster, about average for rainfall compared with the rest of the year. The wettest October on record saw 226 mm (2005), and the driest just 4 mm (2024). Humidity sits around 77% and average wind speed is 1.1 m/s, with solar radiation averaging 3.1 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 1.4°C. Daytime highs moved from 18.7°C to 20°C and overnight lows from 6.9°C to 8.2°C over the same span.
October Weather in Lancaster, Year by Year
🔥 warmest❄️ coldest🌧️ wettest
YearAvg HighAvg TempAvg LowHottest DayColdest DayRainfallHumidityWindSolar
202519.7°C13.6°C7.4°C28.6°C1.5°C73 mm68%1.2 m/s3.4
202421.8°C14.9°C7.9°C29.1°C1.7°C4 mm64%1 m/s3.8
202320.2°C14.4°C8.6°C28.1°C2.0°C49 mm76%1 m/s3.1
202217.2°C11.7°C6.2°C23.7°C0.9°C135 mm80%1 m/s3
202121.2°C16.2°C11.1°C27.0°C4.4°C98 mm83%1 m/s2.6
202018.9°C13.6°C8.3°C26.2°C-2.0°C133 mm79%1 m/s2.8
201921.4°C15.5°C9.7°C34.7°C2.2°C106 mm70%1.2 m/s2.9
201817.7°C13.0°C8.2°C28.1°C-1.2°C77 mm84%1.1 m/s2.8
201721.9°C16.0°C10.0°C28.1°C1.9°C104 mm73%1.1 m/s3.2
201619.7°C13.9°C8.0°C28.6°C-0.2°C34 mm75%1.1 m/s3.2
201517.5°C12.0°C6.6°C25.3°C-1.9°C99 mm78%1.1 m/s3.2
201418.9°C13.6°C8.2°C26.0°C1.9°C99 mm77%1.2 m/s2.7
201318.9°C13.5°C8.2°C30.2°C-1.5°C148 mm79%1 m/s3
201218.2°C13.2°C8.2°C26.2°C-1.5°C193 mm82%1 m/s2.5
201116.5°C11.6°C6.8°C26.4°C-2.8°C102 mm84%1.1 m/s2.7
201017.3°C12.1°C6.8°C25.0°C0.6°C101 mm82%1.1 m/s3.2
200916.2°C11.4°C6.6°C25.2°C-1.5°C148 mm82%1.1 m/s2.5
200817.4°C11.5°C5.6°C25.7°C-1.9°C61 mm74%1.1 m/s3.4
2007 🔥22.4°C16.7°C11.0°C31.9°C0.2°C133 mm76%1 m/s3.2
200617.0°C11.5°C6.0°C26.6°C-0.5°C105 mm77%1.2 m/s3
2005 🌧️18.4°C13.4°C8.4°C28.2°C0.0°C226 mm81%1.2 m/s2.6
200416.9°C12.0°C7.1°C23.1°C1.4°C54 mm83%0.9 m/s2.9
200316.3°C10.8°C5.3°C23.6°C-1.7°C128 mm81%1.1 m/s3.1
200216.5°C11.8°C7.1°C29.2°C-0.6°C169 mm82%1 m/s2.6
200119.6°C13.1°C6.7°C27.3°C-0.6°C20 mm64%1.2 m/s3.7
200019.0°C12.6°C6.1°C26.8°C-0.9°C25 mm72%1 m/s3.3
199916.7°C10.9°C5.1°C22.4°C0.4°C72 mm82%1 m/s3.2
199818.3°C12.7°C7.0°C23.4°C0.5°C87 mm73%1.1 m/s3
199718.9°C12.7°C6.5°C30.1°C-1.9°C55 mm69%1 m/s3.4
199617.1°C11.5°C5.9°C24.1°C0.0°C145 mm81%1.1 m/s3.1
199520.0°C14.0°C8.0°C27.3°C0.8°C183 mm78%1.1 m/s3.1
199417.4°C11.3°C5.1°C24.0°C0.9°C33 mm75%0.9 m/s3.4
199316.1°C10.7°C5.3°C24.0°C-1.2°C93 mm79%1.1 m/s3.1
199216.3°C10.4°C4.5°C24.2°C-4.2°C54 mm76%1 m/s2.9
199118.6°C12.5°C6.5°C26.7°C-1.7°C63 mm77%1 m/s3.2
199019.9°C14.2°C8.5°C28.3°C-3.3°C124 mm75%1.2 m/s3.2
198918.6°C12.6°C6.7°C26.2°C0.1°C127 mm80%1.1 m/s3
198815.2°C9.5°C3.7°C26.4°C-3.4°C60 mm70%1.1 m/s3
1987 ❄️15.2°C9.2°C3.1°C20.3°C-2.4°C66 mm77%1.1 m/s3.3
198618.7°C12.8°C6.9°C28.5°C-0.4°C66 mm73%1 m/s3.2
198518.5°C12.8°C7.1°C26.0°C-3.1°C48 mm78%1 m/s2.9
198421.1°C15.4°C9.7°C26.4°C3.1°C78 mm76%0.9 m/s2.9
198318.3°C12.6°C7.0°C28.9°C-3.2°C127 mm74%1.1 m/s—
198218.8°C12.6°C6.5°C27.3°C-2.9°C46 mm71%1 m/s—
198116.6°C10.5°C4.4°C27.2°C-1.7°C85 mm72%1.1 m/s—

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

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Lancaster October Weather — FAQ

What is the average temperature in Lancaster in October?▼

The average high in October is around 18.4°C with lows near 7.1°C (mean 12.8°C), based on 45 years of NASA POWER data.

Does it rain a lot in Lancaster in October?▼

October averages 94 mm of rainfall in Lancaster, about average for rainfall. The wettest on record was 226 mm in 2005.

What was the hottest October on record in Lancaster?▼

The hottest October reached 34.7°C in 2019. The coldest dipped to -4.2°C in 1992.

Has October in Lancaster 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 1.4°C. Daytime highs moved from 18.7°C to 20°C and overnight lows from 6.9°C to 8.2°C over the same span.

Is October a good time to visit Lancaster?▼

October is one of the warmer months of the year in Lancaster and about average for rainfall, so plan for around 18.4°C daytime highs and 7.1°C at night.

Is October the coldest month in Lancaster?▼

Not quite — October is the 7th coolest month in Lancaster, averaging 12.8°C.

What should I pack for Lancaster in October?▼

For October in Lancaster, pack warm layers and a jacket for chilly mornings, with typical highs of 18.4°C and lows of 7.1°C. Bring an umbrella or light rain jacket too.

Is Lancaster humid in October?▼

Relative humidity in October averages 77% — quite humid.

How windy is Lancaster in October?▼

Average wind speed in October is 1.1 m/s. The windiest October on record averaged 1.2 m/s (1990).

Which October had the most rainfall in Lancaster?▼

The wettest October on record was 2005 with 226 mm. On average, October sees 94 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 Lancaster 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.