Crystal Lake Weather in February (1981–2025)

📍 42.25°N, 88.32°W •
📊

February at a Glance in Crystal Lake

(1981–2025)
Avg High
🔥
0.1°C
Avg Low
❄️
-8.9°C
Avg Temp
🌡️
-4.4°C
Avg Rain
🌧️
41 mm
Avg Humidity
💧
85%
Avg Wind
🌬️
4.3 m/s
Avg Solar
☀️
2.7
kWh/m²/day
vs Annual
📈
-13.1°C
temp difference
❄️Freezing afternoons🥶Freezing mornings☁️Cloudier skies🌦️Some rain💨Breezy💦Humid air

Crystal Lake February Weather Overview

February is one of the cooler months of the year in Crystal Lake, with average highs near 0.1°C and lows around -8.9°C (mean -4.4°C). It is one of the drier months, averaging 41 mm of rainfall and 85% relative humidity across the period.

Crystal Lake February Temperature History (1981–2025)

Range

February is one of the cooler months of the year in Crystal Lake. Across 45 years of records, the warmest February in Crystal Lake was 1998 — when the month averaged 2.1°C — while the coldest was 2014 at -11.4°C. Typical February days reach 0.1°C with nights near -8.9°C. The long-term February temperature trend is broadly flat.

1981–1985 vs 2021–2025

Avg Temp-4.6°C→-4.2°C+0.4°C
Max Temp-0.2°C→0.7°C+0.9°C
Min Temp-9.0°C→-9.1°C-0.1°C

Trend (per decade)

Avg Temp-0.1°C/decade ↘
Max Temp0°C/decade →
Min Temp-0.2°C/decade ↘

Distribution of Avg Temp

-12.0°C–-8.2°C6 yr (13%)
-8.2°C–-4.5°C17 yr (38%)
-4.5°C–-0.7°C15 yr (33%)
-0.7°C–3.0°C7 yr (16%)

Crystal Lake February Rainfall History (1981–2025)

Range

February is one of the drier months in Crystal Lake, averaging 41 mm of rainfall. The wettest February on record was 2018 with 100 mm, while the driest was 2003 at 5 mm.

Crystal Lake February Humidity History (1981–2025)

Range

Relative humidity in Crystal Lake during February averages 85%. The most humid February was 2021 at 93%, and the least humid was 2003 at 76%.

Crystal Lake February Solar History (1981–2025)

Range

February receives about 2.7 kWh/m²/day of solar energy in Crystal Lake. The sunniest February was 2014 at 3.4 kWh/m²/day, and the cloudiest were 1996 and 2013 at 2.1.

Crystal Lake February Wind History (1981–2025)

Range

Average wind speed in Crystal Lake during February is 4.3 m/s. The windiest February was 1981 at 5.3 m/s, while the calmest was 1983 at 3.4 m/s.

What February Feels Like in Crystal Lake

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

How February Ranks in Crystal Lake

🥶2nd coolest month of the year
🌵1st driest month of the year
☀️9th sunniest month of the year

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

Explore Crystal Lake Weather by Month

Crystal Lake February Averages by Decade

Metric1980s1990s2000s2010s2020sChange
Avg Temp-5.0°C-3.3°C-4.3°C-5.1°C-4.2°C+0.8°C
Avg High-0.7°C0.9°C0.3°C-0.6°C0.6°C+1.3°C
Avg Low-9.4°C-7.5°C-9.0°C-9.6°C-9.0°C+0.4°C
Avg Rain36 mm37 mm45 mm50 mm33 mm-2 mm

Extreme February Records in Crystal Lake

🔥Warmest February20.9°C2024
🧊Coldest February-36.0°C1996
🌧️Wettest February100 mm2018
🏜️Driest February5 mm2003
🌬️Windiest February5.3 m/s1981

Key Insights for February

✅

February temperatures in Crystal Lake have risen by about 0.4°C between 1981–1985 and 2021–2025.

✅

February has ranged from a record low of -36°C (1996) to a record high of 20.9°C (2024).

✅

Rainfall in February is one of the drier months, averaging 41 mm, with a wettest year of 100 mm.

✅

Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows fell 0.2°C per decade, widening the gap between day and night.

Is February a Good Time to Visit Crystal Lake?

A quieter season to visit Crystal Lake

If your dates are flexible, the more temperate months of August and July tend to be the most comfortable for visiting Crystal Lake. That said, February — with days averaging 0.1°C and nights around -8.9°C (mean -4.4°C) and moderate rainfall (41 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.

See Crystal Lake'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 →

Crystal Lake Weather in February — In Depth

☀️ February climate overview

February is one of the cooler months of the year in Crystal Lake, with average highs near 0.1°C and lows around -8.9°C (mean -4.4°C). It is one of the drier months, averaging 41 mm of rainfall and 85% relative humidity across the period.

🌧️ Rain, humidity & wind in February

February averages 41 mm of rainfall in Crystal Lake, one of the drier months compared with the rest of the year. The wettest February on record saw 100 mm (2018), and the driest just 5 mm (2003). Humidity sits around 85% and average wind speed is 4.3 m/s, with solar radiation averaging 2.7 kWh/m²/day.

📈 How February has changed

Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average February temperatures have risen by about 0.4°C — but days and nights have moved in opposite directions. Daytime highs rose from -0.2°C to 0.7°C while overnight lows fell from -9°C to -9.1°C, widening the gap between day and night.
February Weather in Crystal Lake, Year by Year
🔥 warmest❄️ coldest🌧️ wettest
YearAvg HighAvg TempAvg LowHottest DayColdest DayRainfallHumidityWindSolar
2025-0.3°C-5.2°C-10.0°C12.4°C-26.0°C27 mm80%4.3 m/s2.8
20246.9°C1.8°C-3.3°C20.9°C-13.8°C16 mm80%3.9 m/s3.1
20232.6°C-2.4°C-7.3°C10.9°C-24.1°C92 mm83%4.6 m/s2.9
2022-0.4°C-5.1°C-9.7°C9.0°C-17.1°C28 mm80%5 m/s2.6
2021-5.2°C-10.2°C-15.1°C10.2°C-29.7°C20 mm93%4.1 m/s3.2
20200.1°C-4.4°C-8.9°C8.8°C-23.3°C19 mm86%4.4 m/s3.2
2019-2.1°C-6.6°C-11.2°C7.7°C-21.5°C83 mm90%4.4 m/s2.4
2018 🌧️0.2°C-4.7°C-9.5°C14.6°C-20.5°C100 mm84%4.2 m/s2.4
20175.7°C0.7°C-4.4°C17.9°C-14.9°C43 mm82%4.3 m/s2.8
20161.7°C-2.4°C-6.5°C15.9°C-19.6°C18 mm83%4.5 m/s2.4
2015-6.1°C-11.1°C-16.2°C2.2°C-24.8°C19 mm84%4.1 m/s3
2014 ❄️-5.8°C-11.4°C-17.0°C6.1°C-27.3°C40 mm90%4.1 m/s3.4
2013-1.0°C-5.0°C-9.0°C8.4°C-17.3°C71 mm86%4.4 m/s2.1
20123.0°C-1.1°C-5.2°C10.5°C-14.4°C34 mm82%4 m/s2.6
2011-1.2°C-5.6°C-10.0°C12.9°C-26.7°C68 mm91%4.6 m/s2.5
2010-0.1°C-3.6°C-7.0°C3.7°C-13.6°C26 mm88%3.5 m/s2.8
20091.2°C-3.5°C-8.3°C14.6°C-21.0°C54 mm86%4.7 m/s2.9
2008-3.2°C-8.0°C-12.7°C2.7°C-26.2°C91 mm92%4 m/s2.4
2007-4.9°C-9.3°C-13.8°C8.1°C-27.4°C50 mm87%4.7 m/s2.5
20060.2°C-4.7°C-9.6°C9.1°C-27.1°C24 mm81%4.2 m/s2.9
20052.9°C-0.7°C-4.3°C11.0°C-14.5°C48 mm84%3.7 m/s2.4
20040.9°C-4.0°C-8.9°C13.0°C-23.4°C22 mm90%3.8 m/s2.5
2003-1.2°C-6.0°C-10.9°C9.6°C-18.9°C5 mm76%4.4 m/s2.8
20023.3°C-1.1°C-5.5°C13.1°C-13.8°C36 mm82%5 m/s2.7
2001-0.3°C-5.4°C-10.4°C9.5°C-21.5°C73 mm86%4.2 m/s2.4
20004.2°C-0.6°C-5.4°C19.1°C-13.1°C44 mm85%4.4 m/s2.4
19993.9°C-0.2°C-4.3°C18.6°C-10.5°C33 mm81%4.5 m/s2.2
1998 🔥5.8°C2.1°C-1.6°C13.7°C-4.9°C41 mm87%3.5 m/s2.2
19970.5°C-3.7°C-7.9°C6.3°C-14.4°C87 mm87%3.9 m/s2.8
1996-0.7°C-5.4°C-10.2°C12.9°C-36.0°C17 mm84%4.8 m/s2.1
1995-1.1°C-5.6°C-10.1°C8.3°C-22.2°C5 mm82%4.6 m/s2.9
1994-3.8°C-8.5°C-13.2°C14.4°C-26.5°C74 mm93%4.3 m/s2.5
1993-1.6°C-5.6°C-9.6°C4.7°C-21.8°C25 mm88%3.8 m/s2.8
19922.2°C-1.4°C-4.9°C7.9°C-15.9°C32 mm87%3.9 m/s2.2
19912.0°C-2.2°C-6.3°C12.1°C-16.9°C17 mm83%4.3 m/s2.7
19902.0°C-2.7°C-7.4°C9.2°C-20.0°C39 mm80%4.8 m/s2.5
1989-3.6°C-8.2°C-12.7°C4.4°C-20.8°C21 mm79%4.6 m/s2.8
1988-2.1°C-7.0°C-11.8°C9.7°C-20.8°C21 mm83%5 m/s2.8
19873.5°C-0.4°C-4.3°C7.3°C-12.5°C18 mm82%4.1 m/s2.8
1986-2.7°C-6.6°C-10.4°C3.5°C-21.5°C69 mm92%3.7 m/s2.8
1985-3.5°C-8.3°C-13.1°C9.3°C-30.3°C52 mm92%4.5 m/s3
19842.8°C-1.2°C-5.2°C13.8°C-22.2°C35 mm89%4.3 m/s2.3
19831.9°C-2.2°C-6.4°C14.0°C-20.5°C43 mm90%3.4 m/s—
1982-3.4°C-7.8°C-12.2°C6.7°C-30.7°C6 mm91%3.9 m/s—
19811.1°C-3.5°C-8.2°C15.5°C-25.3°C54 mm85%5.3 m/s—

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

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Crystal Lake February Weather — FAQ

What is the average temperature in Crystal Lake in February?▼

The average high in February is around 0.1°C with lows near -8.9°C (mean -4.4°C), based on 45 years of NASA POWER data.

Does it rain a lot in Crystal Lake in February?▼

February averages 41 mm of rainfall in Crystal Lake, one of the drier months. The wettest on record was 100 mm in 2018.

What was the hottest February on record in Crystal Lake?▼

The hottest February reached 20.9°C in 2024. The coldest dipped to -36°C in 1996.

Has February in Crystal Lake gotten warmer over time?▼

Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average February temperatures have risen by about 0.4°C — but days and nights have moved in opposite directions. Daytime highs rose from -0.2°C to 0.7°C while overnight lows fell from -9°C to -9.1°C, widening the gap between day and night.

Is February a good time to visit Crystal Lake?▼

February is one of the cooler months of the year in Crystal Lake and one of the drier months, so plan for around 0.1°C daytime highs and -8.9°C at night.

Is February the coldest month in Crystal Lake?▼

Not quite — February is the 2nd coolest month in Crystal Lake, averaging -4.4°C.

What should I pack for Crystal Lake in February?▼

For February in Crystal Lake, pack warm layers and a jacket for chilly mornings, with typical highs of 0.1°C and lows of -8.9°C.

Is Crystal Lake humid in February?▼

Relative humidity in February averages 85% — quite humid.

How windy is Crystal Lake in February?▼

Average wind speed in February is 4.3 m/s. The windiest February on record averaged 5.3 m/s (1981).

Which February had the most rainfall in Crystal Lake?▼

The wettest February on record was 2018 with 100 mm. On average, February sees 41 mm.

Where does this February 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 Crystal Lake behaves each February, 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 February specifically, along with year-by-year records and how the month has changed over the decades.