Whitby Weather in January (1981–2025)

📍 43.88°N, 78.94°W •
📊

January at a Glance in Whitby

(1981–2025)
Avg High
🔥
-2.8°C
Avg Low
❄️
-10.0°C
Avg Temp
🌡️
-6.4°C
Avg Rain
🌧️
43 mm
Avg Humidity
💧
89%
Avg Wind
🌬️
4.5 m/s
Avg Solar
☀️
1.3
kWh/m²/day
vs Annual
📈
-14.1°C
temp difference
❄️Freezing afternoons🥶Freezing mornings☁️Cloudier skies🌦️Some rain💨Breezy💦Humid air

Whitby January Weather Overview

January is one of the cooler months of the year in Whitby, with average highs near -2.8°C and lows around -10°C (mean -6.4°C). It is one of the drier months, averaging 43 mm of rainfall and 89% relative humidity across the period.

Whitby January Temperature History (1981–2025)

Range

January is one of the cooler months of the year in Whitby. Across 45 years of records, the warmest January in Whitby was 2006 — when the month averaged -2.5°C — while the coldest was 1994 at -12.7°C. Typical January days reach -2.8°C with nights near -10°C. The long-term trend is warming, about 0.5°C per decade.

1981–1985 vs 2021–2025

Avg Temp-9.1°C→-5.2°C+3.9°C
Max Temp-5.4°C→-1.9°C+3.5°C
Min Temp-12.8°C→-8.5°C+4.3°C

Trend (per decade)

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

Distribution of Avg Temp

-13.0°C–-10.2°C4 yr (9%)
-10.2°C–-7.5°C12 yr (27%)
-7.5°C–-4.7°C14 yr (31%)
-4.7°C–-2.0°C15 yr (33%)

Whitby January Rainfall History (1981–2025)

Range

January is one of the drier months in Whitby, averaging 43 mm of rainfall. The wettest January on record was 1999 with 95 mm, while the driest was 1988 at 13 mm.

Whitby January Humidity History (1981–2025)

Range

Relative humidity in Whitby during January averages 89%. The most humid January was 1984 at 95%, and the least humid was 1988 at 83%.

Whitby January Solar History (1981–2025)

Range

January receives about 1.3 kWh/m²/day of solar energy in Whitby. The sunniest Januarys were 2003 and 2005 at 1.5 kWh/m²/day, and the cloudiest was 2023 at 1.

Whitby January Wind History (1981–2025)

Range

Average wind speed in Whitby during January is 4.5 m/s. The windiest January was 1997 at 5.9 m/s, while the calmest was 2011 at 3.4 m/s.

What January Feels Like in Whitby

🌅
Freezing
Morning
🌞
Freezing
Afternoon
🌆
Freezing
Evening
Rain chanceModerate
Outdoor comfort★★☆☆☆

How January Ranks in Whitby

🥶1st coolest month of the year
🌵2nd driest month of the year
☀️11th sunniest month of the year

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

Explore Whitby Weather by Month

Whitby January Averages by Decade

Metric1980s1990s2000s2010s2020sChange
Avg Temp-7.5°C-6.3°C-6.3°C-6.3°C-5.0°C+2.5°C
Avg High-3.8°C-2.6°C-2.7°C-2.7°C-1.6°C+2.2°C
Avg Low-11.2°C-10.0°C-9.9°C-9.8°C-8.4°C+2.8°C
Avg Rain24 mm43 mm52 mm47 mm47 mm+23 mm

Extreme January Records in Whitby

🔥Warmest January11.7°C2005
🧊Coldest January-28.3°C1981
🌧️Wettest January95 mm1999
🏜️Driest January13 mm1988
🌬️Windiest January5.9 m/s1997

Key Insights for January

✅

January temperatures in Whitby have risen by about 3.9°C between 1981–1985 and 2021–2025.

✅

January has ranged from a record low of -28.3°C (1981) to a record high of 11.7°C (2005).

✅

Rainfall in January is one of the drier months, averaging 43 mm, with a wettest year of 95 mm.

Is January a Good Time to Visit Whitby?

A quieter season to visit Whitby

If your dates are flexible, the more temperate months of July and August tend to be the most comfortable for visiting Whitby. That said, January — with days averaging -2.8°C and nights around -10°C (mean -6.4°C) and moderate rainfall (43 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.

See Whitby'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 →

Whitby Weather in January — In Depth

☀️ January climate overview

January is one of the cooler months of the year in Whitby, with average highs near -2.8°C and lows around -10°C (mean -6.4°C). It is one of the drier months, averaging 43 mm of rainfall and 89% relative humidity across the period.

🌧️ Rain, humidity & wind in January

January averages 43 mm of rainfall in Whitby, one of the drier months compared with the rest of the year. The wettest January on record saw 95 mm (1999), and the driest just 13 mm (1988). Humidity sits around 89% and average wind speed is 4.5 m/s, with solar radiation averaging 1.3 kWh/m²/day.

📈 How January has changed

Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 3.9°C. Daytime highs moved from -5.4°C to -1.9°C and overnight lows from -12.8°C to -8.5°C over the same span.
January Weather in Whitby, Year by Year
🔥 warmest❄️ coldest🌧️ wettest
YearAvg HighAvg TempAvg LowHottest DayColdest DayRainfallHumidityWindSolar
2025-3.2°C-6.3°C-9.5°C1.6°C-17.8°C21 mm85%5.3 m/s1.4
2024-1.0°C-3.7°C-6.4°C3.1°C-14.5°C66 mm88%4.5 m/s1.1
20230.2°C-2.6°C-5.4°C4.2°C-14.2°C53 mm88%3.5 m/s1
2022-4.4°C-9.0°C-13.6°C3.8°C-23.6°C39 mm87%4.4 m/s1.4
2021-1.3°C-4.4°C-7.5°C2.6°C-17.3°C30 mm87%3.7 m/s1.3
2020-0.1°C-4.1°C-8.0°C8.0°C-17.8°C72 mm90%4 m/s1.2
2019-3.8°C-8.1°C-12.4°C5.5°C-24.1°C51 mm89%5 m/s1.3
2018-3.0°C-6.6°C-10.2°C8.3°C-20.8°C55 mm89%4.9 m/s1.3
20170.0°C-2.8°C-5.5°C5.6°C-12.8°C56 mm87%4.3 m/s1.2
2016-1.5°C-5.0°C-8.6°C6.2°C-17.9°C51 mm88%4.5 m/s1.3
2015-4.4°C-8.8°C-13.2°C3.4°C-21.8°C35 mm85%4.8 m/s1.4
2014-5.6°C-9.3°C-12.9°C3.7°C-27.5°C37 mm89%5.1 m/s1.2
2013-0.3°C-3.6°C-6.9°C10.5°C-18.4°C40 mm86%4.3 m/s1.3
2012-0.4°C-3.7°C-7.1°C5.5°C-18.2°C65 mm88%4.5 m/s1.2
2011-4.4°C-7.8°C-11.1°C5.1°C-22.4°C35 mm90%3.4 m/s1.4
2010-3.9°C-7.3°C-10.6°C3.6°C-21.1°C51 mm93%4.2 m/s1.3
2009-5.4°C-9.0°C-12.7°C1.2°C-20.0°C57 mm92%4.1 m/s1.4
2008-0.4°C-3.2°C-6.0°C11.6°C-22.3°C65 mm88%4.8 m/s1.2
2007-1.1°C-4.3°C-7.4°C8.8°C-20.1°C59 mm89%4.4 m/s1.3
2006 🔥1.0°C-2.5°C-5.9°C7.0°C-17.9°C86 mm92%4.1 m/s1.4
2005-3.8°C-7.6°C-11.5°C11.7°C-24.3°C59 mm89%4.2 m/s1.5
2004-6.9°C-10.3°C-13.7°C6.6°C-24.1°C61 mm94%5 m/s1.3
2003-5.9°C-10.2°C-14.6°C1.2°C-27.9°C38 mm92%4.6 m/s1.5
20020.3°C-2.8°C-5.8°C5.2°C-12.8°C36 mm91%4.5 m/s1.3
2001-2.4°C-6.5°C-10.7°C0.7°C-22.8°C27 mm94%3.5 m/s1.2
2000-2.6°C-6.5°C-10.3°C9.2°C-22.3°C33 mm86%5 m/s1.4
1999 🌧️-4.0°C-7.9°C-11.9°C3.6°C-26.9°C95 mm94%4.6 m/s1.4
1998-1.2°C-4.7°C-8.2°C6.1°C-16.6°C62 mm91%4.3 m/s1.3
1997-2.2°C-6.3°C-10.4°C8.7°C-22.0°C28 mm87%5.9 m/s1.3
1996-3.9°C-8.0°C-12.1°C7.3°C-21.9°C49 mm88%4.6 m/s1.3
1995-0.3°C-3.2°C-6.2°C11.0°C-17.8°C49 mm89%4.3 m/s1.3
1994 ❄️-8.5°C-12.7°C-17.0°C2.4°C-25.6°C31 mm92%5.1 m/s1.3
1993-1.6°C-5.0°C-8.3°C6.5°C-16.5°C43 mm87%4.7 m/s1.2
1992-2.0°C-5.5°C-9.1°C4.7°C-19.1°C25 mm89%4.4 m/s1.3
1991-3.2°C-7.0°C-10.8°C2.3°C-21.9°C20 mm89%4.9 m/s1.3
19900.5°C-3.0°C-6.4°C5.3°C-14.8°C28 mm89%4.8 m/s1.3
19890.0°C-3.9°C-7.8°C5.4°C-23.5°C20 mm85%5.3 m/s1.4
1988-1.9°C-5.4°C-8.9°C8.0°C-20.8°C13 mm83%5.2 m/s1.3
1987-1.8°C-5.1°C-8.3°C4.0°C-19.0°C15 mm87%4.1 m/s1.3
1986-3.1°C-7.2°C-11.3°C4.2°C-23.0°C20 mm90%4.8 m/s1.2
1985-5.2°C-8.5°C-11.8°C3.5°C-21.1°C41 mm92%4.6 m/s1.2
1984-6.0°C-9.9°C-13.8°C0.7°C-27.9°C23 mm95%4 m/s1.4
1983-1.9°C-5.3°C-8.7°C4.0°C-21.4°C28 mm89%4.3 m/s—
1982-7.3°C-11.4°C-15.5°C4.3°C-26.5°C43 mm92%5.6 m/s—
1981-6.7°C-10.5°C-14.3°C3.3°C-28.3°C17 mm94%4 m/s—

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

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Whitby January Weather — FAQ

What is the average temperature in Whitby in January?▼

The average high in January is around -2.8°C with lows near -10°C (mean -6.4°C), based on 45 years of NASA POWER data.

Does it rain a lot in Whitby in January?▼

January averages 43 mm of rainfall in Whitby, one of the drier months. The wettest on record was 95 mm in 1999.

What was the hottest January on record in Whitby?▼

The hottest January reached 11.7°C in 2005. The coldest dipped to -28.3°C in 1981.

Has January in Whitby gotten warmer over time?▼

Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 3.9°C. Daytime highs moved from -5.4°C to -1.9°C and overnight lows from -12.8°C to -8.5°C over the same span.

Is January a good time to visit Whitby?▼

January is one of the cooler months of the year in Whitby and one of the drier months, so plan for around -2.8°C daytime highs and -10°C at night.

Is January the coldest month in Whitby?▼

Yes — January is the coldest month of the year in Whitby, averaging -6.4°C.

What should I pack for Whitby in January?▼

For January in Whitby, pack warm layers and a jacket for chilly mornings, with typical highs of -2.8°C and lows of -10°C.

Is Whitby humid in January?▼

Relative humidity in January averages 89% — quite humid.

How windy is Whitby in January?▼

Average wind speed in January is 4.5 m/s. The windiest January on record averaged 5.9 m/s (1997).

Which January had the most rainfall in Whitby?▼

The wettest January on record was 1999 with 95 mm. On average, January sees 43 mm.

Where does this January 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 Ontario cities

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