Cranbrook Weather in August (1981–2025)

📍 49.51°N, 115.77°W •
📊

August at a Glance in Cranbrook

(1981–2025)
Avg High
🔥
24.3°C
Avg Low
❄️
9.6°C
Avg Temp
🌡️
17.0°C
Avg Rain
🌧️
32 mm
Avg Humidity
💧
54%
Avg Wind
🌬️
0.3 m/s
Avg Solar
☀️
5.5
kWh/m²/day
vs Annual
📈
+14°C
temp difference
🌤️Mild afternoons❄️Cold mornings☀️Very sunny🌦️Some rain🍃Light winds🏜️Low humidity

Cranbrook August Weather Overview

August is one of the warmer months of the year in Cranbrook, with average highs near 24.3°C and lows around 9.6°C (mean 17°C). It is one of the drier months, averaging 32 mm of rainfall and 54% relative humidity across the period.

Cranbrook August Temperature History (1981–2025)

Range

August is one of the warmer months of the year in Cranbrook. Across 45 years of records, the warmest August in Cranbrook was 2022 — when the month averaged 20°C — while the coldest was 1995 at 13.5°C. Typical August days reach 24.3°C with nights near 9.6°C. The long-term trend is warming, about 0.3°C per decade.

1981–1985 vs 2021–2025

Avg Temp16.8°C→18.1°C+1.3°C
Max Temp24.0°C→25.4°C+1.4°C
Min Temp9.5°C→10.9°C+1.4°C

Trend (per decade)

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

Distribution of Avg Temp

13.0°C–14.8°C3 yr (7%)
14.8°C–16.5°C10 yr (22%)
16.5°C–18.3°C26 yr (58%)
18.3°C–20.0°C6 yr (13%)

Cranbrook August Rainfall History (1981–2025)

Range

August is one of the drier months in Cranbrook, averaging 32 mm of rainfall. The wettest August on record was 1989 with 82 mm, while the driest was 2001 at 6 mm.

Cranbrook August Humidity History (1981–2025)

Range

Relative humidity in Cranbrook during August averages 54%. The most humid August was 1993 at 65%, and the least humid was 2001 at 42%.

Cranbrook August Solar History (1981–2025)

Range

August receives about 5.5 kWh/m²/day of solar energy in Cranbrook. The sunniest August was 1998 at 6.4 kWh/m²/day, and the cloudiest was 2021 at 4.6.

Cranbrook August Wind History (1981–2025)

Range

Average wind speed in Cranbrook during August is 0.3 m/s. The windiest Augusts were 1986 and 2001 at 0.4 m/s, while the calmest were 2021, 2024 and 2025, among others at 0.2 m/s.

What August Feels Like in Cranbrook

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

How August Ranks in Cranbrook

🔥2nd warmest month of the year
🌵1st driest month of the year
☀️3rd sunniest month of the year

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

Explore Cranbrook Weather by Month

Cranbrook August Averages by Decade

Metric1980s1990s2000s2010s2020sChange
Avg Temp16.5°C16.7°C16.8°C17.1°C18.0°C+1.5°C
Avg High23.9°C23.9°C24.4°C24.5°C25.3°C+1.4°C
Avg Low9.1°C9.4°C9.3°C9.8°C10.8°C+1.7°C
Avg Rain33 mm29 mm31 mm25 mm45 mm+12 mm

Extreme August Records in Cranbrook

🔥Warmest August35.7°C2018
🧊Coldest August-3.6°C1992
🌧️Wettest August82 mm1989
🏜️Driest August6 mm2001
🌬️Windiest August0.4 m/s1986

Key Insights for August

✅

August temperatures in Cranbrook have risen by about 1.3°C between 1981–1985 and 2021–2025.

✅

August has ranged from a record low of -3.6°C (1992) to a record high of 35.7°C (2018).

✅

Rainfall in August is one of the drier months, averaging 32 mm, with a wettest year of 82 mm.

Is August a Good Time to Visit Cranbrook?

One of the best times to visit Cranbrook

August is one of the best times to visit Cranbrook. Expect days averaging 24.3°C and nights around 9.6°C (mean 17°C) — warmer than Cranbrook's yearly average — with moderate rainfall (32 mm), so conditions are generally comfortable for sightseeing and outdoor plans.

See Cranbrook'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 →

Cranbrook Weather in August — In Depth

☀️ August climate overview

August is one of the warmer months of the year in Cranbrook, with average highs near 24.3°C and lows around 9.6°C (mean 17°C). It is one of the drier months, averaging 32 mm of rainfall and 54% relative humidity across the period.

🌧️ Rain, humidity & wind in August

August averages 32 mm of rainfall in Cranbrook, one of the drier months compared with the rest of the year. The wettest August on record saw 82 mm (1989), and the driest just 6 mm (2001). Humidity sits around 54% and average wind speed is 0.3 m/s, with solar radiation averaging 5.5 kWh/m²/day.

📈 How August has changed

Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.3°C. Daytime highs moved from 24°C to 25.4°C and overnight lows from 9.5°C to 10.9°C over the same span.
August Weather in Cranbrook, Year by Year
🔥 warmest❄️ coldest🌧️ wettest
YearAvg HighAvg TempAvg LowHottest DayColdest DayRainfallHumidityWindSolar
202525.1°C18.3°C11.4°C30.6°C7.2°C35 mm60%0.2 m/s5.4
202424.5°C17.2°C10.0°C34.1°C3.5°C80 mm61%0.2 m/s5.1
202325.8°C18.5°C11.1°C33.4°C5.4°C65 mm56%0.3 m/s5.4
2022 🔥27.6°C20.0°C12.3°C33.0°C4.8°C20 mm52%0.3 m/s5.9
202123.9°C16.7°C9.6°C33.3°C2.2°C61 mm57%0.2 m/s4.6
202024.9°C17.5°C10.2°C34.3°C3.6°C9 mm49%0.3 m/s6.1
201924.9°C17.4°C9.9°C31.3°C4.6°C19 mm55%0.3 m/s5.6
201824.3°C17.2°C10.1°C35.7°C3.4°C17 mm56%0.3 m/s5.3
201726.0°C18.0°C10.1°C30.6°C5.1°C12 mm54%0.3 m/s5.5
201623.6°C16.4°C9.2°C29.8°C4.3°C47 mm60%0.3 m/s5.3
201524.9°C17.5°C10.2°C32.0°C2.8°C22 mm51%0.3 m/s5.2
201424.3°C17.3°C10.3°C31.9°C4.6°C34 mm60%0.2 m/s5
201324.6°C17.4°C10.3°C28.6°C5.7°C37 mm59%0.3 m/s5.4
201225.2°C17.4°C9.7°C30.9°C3.6°C10 mm56%0.3 m/s6.1
201124.7°C17.4°C10.1°C29.9°C4.8°C14 mm51%0.3 m/s6.3
201022.2°C15.2°C8.1°C29.0°C1.6°C36 mm58%0.3 m/s5.2
200924.5°C16.8°C9.1°C31.2°C4.2°C42 mm56%0.3 m/s5.6
200823.6°C16.1°C8.7°C34.0°C2.9°C38 mm55%0.3 m/s5.2
200723.4°C15.9°C8.4°C31.1°C3.4°C12 mm49%0.3 m/s5.7
200623.7°C16.5°C9.3°C30.6°C2.8°C32 mm50%0.3 m/s5.7
200523.5°C16.0°C8.5°C30.2°C3.0°C58 mm54%0.3 m/s5.9
200424.6°C17.5°C10.4°C33.4°C6.8°C69 mm61%0.2 m/s4.8
200327.2°C19.3°C11.4°C34.1°C5.9°C16 mm44%0.3 m/s5.9
200223.2°C15.6°C8.0°C28.0°C2.7°C23 mm53%0.3 m/s5.8
200126.4°C18.1°C9.8°C33.6°C4.1°C6 mm42%0.4 m/s6.1
200024.1°C16.6°C9.1°C30.6°C2.1°C20 mm48%0.3 m/s5.9
199924.9°C17.5°C10.1°C31.2°C3.3°C38 mm59%0.2 m/s5.3
199826.3°C18.8°C11.3°C33.0°C4.4°C19 mm49%0.3 m/s6.4
199724.0°C16.8°C9.6°C34.1°C3.8°C20 mm56%0.3 m/s5.6
199624.1°C16.7°C9.2°C31.2°C4.3°C21 mm53%0.3 m/s5.8
1995 ❄️20.5°C13.5°C6.6°C27.2°C1.9°C45 mm60%0.3 m/s4.9
199425.6°C17.9°C10.1°C33.4°C2.8°C16 mm44%0.3 m/s5.6
199320.8°C14.0°C7.1°C28.6°C0.6°C52 mm65%0.3 m/s5.1
199223.4°C16.0°C8.5°C31.5°C-3.6°C23 mm49%0.3 m/s5.6
199125.2°C18.1°C10.9°C32.9°C4.3°C20 mm53%0.3 m/s5.6
199024.5°C17.5°C10.6°C31.7°C3.7°C36 mm57%0.3 m/s5.6
1989 🌧️21.6°C15.0°C8.4°C31.4°C2.8°C82 mm61%0.2 m/s4.7
198824.7°C16.7°C8.7°C31.7°C3.6°C20 mm46%0.3 m/s5.5
198722.1°C14.8°C7.4°C29.4°C2.8°C29 mm56%0.3 m/s5.2
198626.3°C18.1°C10.0°C32.0°C4.8°C16 mm46%0.4 m/s5.9
198522.0°C14.7°C7.4°C27.8°C1.2°C43 mm52%0.3 m/s4.9
198424.6°C17.1°C9.6°C29.8°C1.3°C22 mm50%0.3 m/s5.4
198325.0°C18.0°C11.0°C32.1°C5.9°C42 mm59%0.3 m/s—
198222.1°C15.3°C8.4°C28.3°C5.1°C33 mm59%0.3 m/s—
198126.3°C18.8°C11.3°C32.6°C5.4°C12 mm53%0.3 m/s—

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

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Cranbrook August Weather — FAQ

What is the average temperature in Cranbrook in August?▼

The average high in August is around 24.3°C with lows near 9.6°C (mean 17°C), based on 45 years of NASA POWER data.

Does it rain a lot in Cranbrook in August?▼

August averages 32 mm of rainfall in Cranbrook, one of the drier months. The wettest on record was 82 mm in 1989.

What was the hottest August on record in Cranbrook?▼

The hottest August reached 35.7°C in 2018. The coldest dipped to -3.6°C in 1992.

Has August in Cranbrook gotten warmer over time?▼

Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.3°C. Daytime highs moved from 24°C to 25.4°C and overnight lows from 9.5°C to 10.9°C over the same span.

Is August a good time to visit Cranbrook?▼

August is one of the warmer months of the year in Cranbrook and one of the drier months, so plan for around 24.3°C daytime highs and 9.6°C at night.

Is August the coldest month in Cranbrook?▼

Not quite — August is the 11th coolest month in Cranbrook, averaging 17°C.

What should I pack for Cranbrook in August?▼

For August in Cranbrook, pack light layers you can adjust through the day, with typical highs of 24.3°C and lows of 9.6°C.

Is Cranbrook humid in August?▼

Relative humidity in August averages 54% — relatively dry.

How windy is Cranbrook in August?▼

Average wind speed in August is 0.3 m/s. The windiest August on record averaged 0.4 m/s (1986).

Which August had the most rainfall in Cranbrook?▼

The wettest August on record was 1989 with 82 mm. On average, August sees 32 mm.

Where does this August 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.

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Explore how the weather in Cranbrook behaves each August, 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 August specifically, along with year-by-year records and how the month has changed over the decades.