Lancaster Weather in June (1981–2025)

📍 40.05°N, 76.30°W •
📊

June at a Glance in Lancaster

(1981–2025)
Avg High
🔥
26.7°C
Avg Low
❄️
15.4°C
Avg Temp
🌡️
21.1°C
Avg Rain
🌧️
107 mm
Avg Humidity
💧
75%
Avg Wind
🌬️
1 m/s
Avg Solar
☀️
5.9
kWh/m²/day
vs Annual
📈
+9.8°C
temp difference
🌡️Warm afternoons🌤️Cool mornings☀️Very sunny🌧️Wet month🍃Light winds💦Humid air

Lancaster June Weather Overview

June is one of the warmer months of the year in Lancaster, with average highs near 26.7°C and lows around 15.4°C (mean 21.1°C). It is a relatively wet time of year, averaging 107 mm of rainfall and 75% relative humidity across the period.

Lancaster June Temperature History (1981–2025)

Range

June is one of the warmer months of the year in Lancaster. Across 45 years of records, the warmest June in Lancaster was 2010 — when the month averaged 23.3°C — while the coldest was 1982 at 18.4°C. Typical June days reach 26.7°C with nights near 15.4°C. The long-term trend is warming, about 0.4°C per decade.

1981–1985 vs 2021–2025

Avg Temp19.8°C→21.9°C+2.1°C
Max Temp25.4°C→27.8°C+2.4°C
Min Temp14.2°C→16.1°C+1.9°C

Trend (per decade)

Avg Temp+0.4°C/decade ↗
Max Temp+0.3°C/decade ↗
Min Temp+0.5°C/decade ↗

Distribution of Avg Temp

18.0°C–19.5°C3 yr (7%)
19.5°C–21.0°C18 yr (40%)
21.0°C–22.5°C20 yr (44%)
22.5°C–24.0°C4 yr (9%)

Lancaster June Rainfall History (1981–2025)

Range

June is a relatively wet time of year in Lancaster, averaging 107 mm of rainfall. The wettest June on record was 2006 with 265 mm, while the driest was 1988 at 23 mm.

Lancaster June Humidity History (1981–2025)

Range

Relative humidity in Lancaster during June averages 75%. The most humid June was 1989 at 84%, and the least humid was 1999 at 63%.

Lancaster June Solar History (1981–2025)

Range

June receives about 5.9 kWh/m²/day of solar energy in Lancaster. The sunniest June was 1988 at 7 kWh/m²/day, and the cloudiest was 2003 at 4.8.

Lancaster June Wind History (1981–2025)

Range

Average wind speed in Lancaster during June is 1 m/s. The windiest Junes were 2015, 2017 and 2019, among others at 1.1 m/s, while the calmest was 1983 at 0.8 m/s.

What June Feels Like in Lancaster

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

How June Ranks in Lancaster

🔥3rd warmest month of the year
🌧️3rd wettest month of the year
☀️1st sunniest month of the year

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

Explore Lancaster Weather by Month

Lancaster June Averages by Decade

Metric1980s1990s2000s2010s2020sChange
Avg Temp20.3°C20.7°C21.3°C21.5°C21.8°C+1.5°C
Avg High26.0°C26.4°C26.7°C26.8°C27.7°C+1.7°C
Avg Low14.6°C14.9°C15.8°C16.1°C16.0°C+1.4°C
Avg Rain104 mm82 mm126 mm120 mm100 mm-4 mm

Extreme June Records in Lancaster

🔥Warmest June36.8°C2024
🧊Coldest June4.0°C1986
🌧️Wettest June265 mm2006
🏜️Driest June23 mm1988
🌬️Windiest June1.1 m/s1981

Key Insights for June

✅

June temperatures in Lancaster have risen by about 2.1°C between 1981–1985 and 2021–2025.

✅

June has ranged from a record low of 4°C (1986) to a record high of 36.8°C (2024).

✅

Rainfall in June is a relatively wet time of year, averaging 107 mm, with a wettest year of 265 mm.

✅

Daytime highs and overnight lows have shifted differently — highs rose about 0.3°C per decade while lows rose 0.5°C per decade, narrowing the gap between day and night.

Is June a Good Time to Visit Lancaster?

One of the best times to visit Lancaster

June is one of the best times to visit Lancaster. Expect days averaging 26.7°C and nights around 15.4°C (mean 21.1°C) — warmer than Lancaster's yearly average — with higher rainfall (107 mm), so conditions are generally comfortable for sightseeing and outdoor plans.

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 June — In Depth

☀️ June climate overview

June is one of the warmer months of the year in Lancaster, with average highs near 26.7°C and lows around 15.4°C (mean 21.1°C). It is a relatively wet time of year, averaging 107 mm of rainfall and 75% relative humidity across the period.

🌧️ Rain, humidity & wind in June

June averages 107 mm of rainfall in Lancaster, a relatively wet time of year compared with the rest of the year. The wettest June on record saw 265 mm (2006), and the driest just 23 mm (1988). Humidity sits around 75% and average wind speed is 1 m/s, with solar radiation averaging 5.9 kWh/m²/day.

📈 How June has changed

Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 2.1°C. Daytime highs moved from 25.4°C to 27.8°C and overnight lows from 14.2°C to 16.1°C over the same span.
June Weather in Lancaster, Year by Year
🔥 warmest❄️ coldest🌧️ wettest
YearAvg HighAvg TempAvg LowHottest DayColdest DayRainfallHumidityWindSolar
202528.4°C22.7°C17.1°C36.6°C6.3°C103 mm78%0.9 m/s5.6
202429.1°C23.0°C16.9°C36.8°C10.5°C111 mm70%1 m/s6.5
202326.8°C20.5°C14.2°C34.3°C10.5°C116 mm68%1 m/s5.5
202227.1°C21.2°C15.4°C31.9°C9.5°C96 mm71%1 m/s6.4
202127.8°C22.2°C16.7°C36.0°C9.6°C90 mm76%1 m/s6
202026.8°C21.3°C15.8°C31.0°C6.4°C81 mm75%1 m/s6.6
201926.0°C20.8°C15.6°C33.8°C6.7°C151 mm79%1.1 m/s6.2
201825.8°C20.7°C15.7°C33.1°C9.3°C121 mm80%1 m/s5.8
201727.8°C22.0°C16.1°C34.9°C9.6°C83 mm69%1.1 m/s6.3
201626.8°C21.2°C15.6°C31.4°C7.7°C81 mm73%1 m/s6.4
201526.4°C21.7°C16.9°C30.9°C11.8°C226 mm81%1.1 m/s5.1
201425.8°C20.9°C16.0°C29.9°C10.0°C106 mm81%0.9 m/s6.3
201326.5°C21.3°C16.2°C31.6°C9.7°C196 mm80%1 m/s5.7
201227.1°C21.2°C15.3°C35.1°C9.6°C97 mm71%1 m/s6.4
201126.7°C21.5°C16.4°C31.2°C9.1°C82 mm79%0.9 m/s6.1
2010 🔥29.1°C23.3°C17.6°C34.8°C10.7°C59 mm70%1.1 m/s6.2
200924.9°C20.2°C15.5°C30.0°C7.2°C143 mm82%1 m/s5.2
200827.7°C22.2°C16.8°C33.7°C10.4°C71 mm78%0.9 m/s6.4
200727.4°C21.6°C15.8°C33.4°C10.4°C101 mm73%0.9 m/s6.5
2006 🌧️26.3°C21.1°C15.9°C34.0°C7.4°C265 mm75%1 m/s5.6
200528.2°C22.5°C16.8°C34.1°C10.2°C62 mm75%1 m/s6
200425.2°C20.0°C14.9°C30.6°C8.8°C134 mm80%0.9 m/s5.8
200324.4°C19.4°C14.4°C32.4°C5.9°C190 mm83%1 m/s4.8
200228.6°C22.4°C16.2°C35.9°C11.1°C81 mm67%1 m/s6
200128.2°C22.1°C16.0°C33.7°C7.6°C99 mm69%1 m/s6.3
200026.5°C21.1°C15.7°C31.3°C9.1°C118 mm78%1.1 m/s5.1
199928.7°C22.1°C15.5°C35.2°C10.0°C55 mm63%1.1 m/s6.1
199824.6°C19.8°C14.9°C30.4°C6.9°C128 mm81%1.1 m/s5.2
199726.7°C20.7°C14.7°C34.9°C8.3°C64 mm70%1 m/s6.1
199625.7°C20.5°C15.3°C30.2°C7.3°C154 mm82%1 m/s5.8
199526.9°C20.9°C14.9°C34.1°C10.1°C82 mm73%1 m/s5.3
199427.6°C21.8°C16.0°C33.2°C6.9°C86 mm75%1 m/s5.9
199325.7°C19.9°C14.1°C30.2°C5.3°C66 mm76%1 m/s6.3
199224.5°C18.8°C13.1°C29.5°C7.5°C74 mm75%1 m/s6.1
199128.6°C22.1°C15.7°C35.5°C9.5°C44 mm64%0.9 m/s6.2
199025.3°C19.9°C14.5°C30.2°C6.4°C71 mm78%1 m/s5.7
198925.3°C20.9°C16.5°C29.3°C10.1°C155 mm84%1 m/s5
198826.4°C19.9°C13.4°C35.1°C5.5°C23 mm66%1.1 m/s7
198727.4°C21.6°C15.8°C32.2°C8.3°C69 mm75%1 m/s5.9
198627.5°C20.9°C14.3°C33.3°C4.0°C59 mm65%1.1 m/s6.5
198525.6°C19.5°C13.3°C30.6°C9.2°C75 mm69%1.1 m/s5.5
198425.7°C20.3°C15.0°C31.2°C6.5°C140 mm81%1 m/s5.6
198325.3°C19.7°C14.1°C30.0°C7.3°C110 mm80%0.8 m/s—
1982 ❄️23.5°C18.4°C13.4°C28.1°C8.6°C176 mm81%1 m/s—
198127.1°C21.2°C15.2°C32.8°C9.9°C126 mm73%1.1 m/s—

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

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Lancaster June Weather — FAQ

What is the average temperature in Lancaster in June?▼

The average high in June is around 26.7°C with lows near 15.4°C (mean 21.1°C), based on 45 years of NASA POWER data.

Does it rain a lot in Lancaster in June?▼

June averages 107 mm of rainfall in Lancaster, a relatively wet time of year. The wettest on record was 265 mm in 2006.

What was the hottest June on record in Lancaster?▼

The hottest June reached 36.8°C in 2024. The coldest dipped to 4°C in 1986.

Has June in Lancaster gotten warmer over time?▼

Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 2.1°C. Daytime highs moved from 25.4°C to 27.8°C and overnight lows from 14.2°C to 16.1°C over the same span.

Is June a good time to visit Lancaster?▼

June is one of the warmer months of the year in Lancaster and a relatively wet time of year, so plan for around 26.7°C daytime highs and 15.4°C at night.

Is June the coldest month in Lancaster?▼

Not quite — June is the 10th coolest month in Lancaster, averaging 21.1°C.

What should I pack for Lancaster in June?▼

For June in Lancaster, pack light layers you can adjust through the day, with typical highs of 26.7°C and lows of 15.4°C. Bring an umbrella or light rain jacket too.

Is Lancaster humid in June?▼

Relative humidity in June averages 75% — quite humid.

How windy is Lancaster in June?▼

Average wind speed in June is 1 m/s. The windiest June on record averaged 1.1 m/s (1981).

Which June had the most rainfall in Lancaster?▼

The wettest June on record was 2006 with 265 mm. On average, June sees 107 mm.

Where does this June 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 June, 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 June specifically, along with year-by-year records and how the month has changed over the decades.