February is one of the cooler months of the year in Castle Rock, with average highs near 6.2°C and lows around -6.4°C (mean -0.1°C). It is one of the drier months, averaging 20 mm of rainfall and 55% relative humidity across the period.
February is one of the cooler months of the year in Castle Rock. Across 45 years of records, the warmest Februarys in Castle Rock were 1991 and 2017 — when the month averaged 2.8°C — while the coldest was 2010 at -2.9°C. Typical February days reach 6.2°C with nights near -6.4°C. The long-term February temperature trend is broadly flat.
February is one of the drier months in Castle Rock, averaging 20 mm of rainfall. The wettest February on record was 2015 with 41 mm, while the driest was 1991 at 5 mm.
Relative humidity in Castle Rock during February averages 55%. The most humid February was 1987 at 63%, and the least humid was 2002 at 42%.
February receives about 3.6 kWh/m²/day of solar energy in Castle Rock. The sunniest February was 2023 at 4.1 kWh/m²/day, and the cloudiest were 1993, 2010 and 2015 at 3.2.
Average wind speed in Castle Rock during February is 2.9 m/s. The windiest February was 1984 at 3.7 m/s, while the calmest were 2005 and 2010 at 2.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | -0.4°C | 0.7°C | 0.2°C | -0.7°C | -0.6°C | -0.2°C |
| Avg High | 5.9°C | 6.9°C | 6.5°C | 5.7°C | 5.9°C | 0°C |
| Avg Low | -6.6°C | -5.5°C | -6.0°C | -7.1°C | -7.1°C | -0.5°C |
| Avg Rain | 19 mm | 16 mm | 16 mm | 24 mm | 27 mm | +9 mm |
February temperatures in Castle Rock have stayed relatively stable across the record.
February has ranged from a record low of -25.2°C (2011) to a record high of 19°C (2017).
Rainfall in February is one of the drier months, averaging 20 mm, with a wettest year of 41 mm.
A quieter season to visit Castle Rock
If your dates are flexible, the more temperate months of July and August tend to be the most comfortable for visiting Castle Rock. That said, February — with days averaging 6.2°C and nights around -6.4°C (mean -0.1°C) and low rainfall (20 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 8.6°C | 1.6°C | -5.5°C | 18.5°C | -16.2°C | 20 mm | 54% | 2.6 m/s | 3.5 |
| 2024 | 7.6°C | 1.4°C | -4.9°C | 13.7°C | -11.0°C | 37 mm | 56% | 2.8 m/s | 3.8 |
| 2023 | 6.8°C | 0.2°C | -6.5°C | 15.1°C | -14.2°C | 15 mm | 48% | 3.2 m/s | 4.1 |
| 2022 | 5.2°C | -1.7°C | -8.5°C | 14.7°C | -18.6°C | 23 mm | 51% | 2.9 m/s | 3.9 |
| 2021 | 3.9°C | -2.4°C | -8.7°C | 14.7°C | -20.1°C | 29 mm | 56% | 2.8 m/s | 3.6 |
| 2020 | 3.4°C | -2.7°C | -8.8°C | 17.4°C | -18.5°C | 39 mm | 60% | 3 m/s | 3.3 |
| 2019 | 5.7°C | -1.1°C | -7.9°C | 12.5°C | -15.1°C | 22 mm | 54% | 3.1 m/s | 3.4 |
| 2018 | 6.6°C | -0.1°C | -6.8°C | 12.7°C | -13.8°C | 16 mm | 55% | 2.8 m/s | 3.7 |
| 2017 | 9.5°C | 2.8°C | -3.9°C | 19.0°C | -10.8°C | 12 mm | 52% | 3 m/s | 3.6 |
| 2016 | 8.5°C | 1.7°C | -5.1°C | 17.8°C | -17.6°C | 22 mm | 55% | 3.4 m/s | 3.8 |
| 2015 🌧️ | 6.3°C | 0.2°C | -5.9°C | 17.2°C | -13.8°C | 41 mm | 61% | 2.6 m/s | 3.2 |
| 2014 | 5.5°C | -1.1°C | -7.8°C | 13.4°C | -20.2°C | 20 mm | 62% | 3.1 m/s | 3.6 |
| 2013 | 4.0°C | -1.9°C | -7.8°C | 11.6°C | -13.6°C | 27 mm | 55% | 2.8 m/s | 3.4 |
| 2012 | 4.0°C | -1.8°C | -7.6°C | 10.9°C | -13.7°C | 35 mm | 61% | 3.2 m/s | 3.7 |
| 2011 | 4.2°C | -2.6°C | -9.3°C | 15.6°C | -25.2°C | 25 mm | 54% | 3.4 m/s | 3.5 |
| 2010 ❄️ | 3.0°C | -2.9°C | -8.7°C | 8.0°C | -15.3°C | 22 mm | 62% | 2.2 m/s | 3.2 |
| 2009 | 8.1°C | 1.8°C | -4.6°C | 15.3°C | -9.1°C | 7 mm | 48% | 3.2 m/s | 3.9 |
| 2008 | 5.7°C | -0.5°C | -6.8°C | 14.9°C | -14.7°C | 20 mm | 57% | 3 m/s | 3.6 |
| 2007 | 6.9°C | 0.5°C | -5.9°C | 15.6°C | -18.9°C | 20 mm | 58% | 3.3 m/s | 3.7 |
| 2006 | 6.2°C | -0.5°C | -7.2°C | 18.1°C | -15.2°C | 10 mm | 50% | 3.2 m/s | 3.6 |
| 2005 | 7.1°C | 1.4°C | -4.3°C | 12.2°C | -8.1°C | 5 mm | 57% | 2.2 m/s | 3.6 |
| 2004 | 4.5°C | -1.3°C | -7.1°C | 17.1°C | -16.2°C | 23 mm | 57% | 2.5 m/s | 3.5 |
| 2003 | 4.1°C | -1.7°C | -7.4°C | 18.1°C | -17.3°C | 26 mm | 58% | 2.3 m/s | 3.3 |
| 2002 | 6.4°C | -0.1°C | -6.5°C | 17.5°C | -16.9°C | 13 mm | 42% | 3.2 m/s | 3.8 |
| 2001 | 6.3°C | -0.1°C | -6.4°C | 11.8°C | -16.3°C | 20 mm | 58% | 2.5 m/s | 3.5 |
| 2000 | 9.2°C | 2.7°C | -3.8°C | 15.5°C | -9.9°C | 17 mm | 52% | 2.9 m/s | 3.6 |
| 1999 | 9.1°C | 2.3°C | -4.4°C | 15.6°C | -10.1°C | 11 mm | 47% | 3.5 m/s | 3.8 |
| 1998 | 5.1°C | -0.1°C | -5.3°C | 13.2°C | -11.3°C | 12 mm | 59% | 2.3 m/s | 3.7 |
| 1997 | 4.2°C | -1.5°C | -7.2°C | 12.6°C | -12.3°C | 26 mm | 60% | 2.6 m/s | 3.7 |
| 1996 | 8.1°C | 1.0°C | -6.0°C | 17.6°C | -19.9°C | 12 mm | 51% | 3.1 m/s | 3.6 |
| 1995 | 9.3°C | 2.4°C | -4.5°C | 18.0°C | -14.8°C | 26 mm | 54% | 2.9 m/s | 3.8 |
| 1994 | 6.0°C | -0.5°C | -7.0°C | 13.8°C | -15.7°C | 20 mm | 54% | 3 m/s | 3.6 |
| 1993 | 4.7°C | -1.3°C | -7.2°C | 12.7°C | -16.8°C | 25 mm | 61% | 2.3 m/s | 3.2 |
| 1992 | 7.5°C | 1.8°C | -3.9°C | 16.1°C | -7.6°C | 6 mm | 54% | 2.7 m/s | 3.8 |
| 1991 🔥 | 9.0°C | 2.8°C | -3.5°C | 14.8°C | -8.0°C | 5 mm | 47% | 2.7 m/s | 3.8 |
| 1990 | 6.3°C | 0.1°C | -6.1°C | 15.0°C | -13.7°C | 13 mm | 53% | 3.2 m/s | 3.3 |
| 1989 | 3.7°C | -2.7°C | -9.0°C | 15.5°C | -24.7°C | 20 mm | 61% | 2.5 m/s | 3.4 |
| 1988 | 6.8°C | 0.3°C | -6.3°C | 17.1°C | -10.8°C | 15 mm | 55% | 3.1 m/s | 3.7 |
| 1987 | 5.8°C | 0.3°C | -5.1°C | 15.2°C | -11.1°C | 37 mm | 63% | 2.6 m/s | 3.5 |
| 1986 | 6.8°C | 0.8°C | -5.2°C | 17.6°C | -17.4°C | 23 mm | 59% | 3.4 m/s | 3.5 |
| 1985 | 3.9°C | -2.5°C | -8.9°C | 13.8°C | -20.7°C | 19 mm | 59% | 2.7 m/s | 3.4 |
| 1984 | 5.4°C | -0.6°C | -6.6°C | 13.5°C | -13.0°C | 26 mm | 56% | 3.7 m/s | 3.5 |
| 1983 | 6.8°C | 0.9°C | -5.0°C | 14.8°C | -12.7°C | 8 mm | 59% | 2.8 m/s | — |
| 1982 | 5.4°C | -1.3°C | -8.0°C | 18.6°C | -22.2°C | 8 mm | 55% | 3.1 m/s | — |
| 1981 | 8.3°C | 1.3°C | -5.7°C | 16.8°C | -17.6°C | 10 mm | 44% | 3 m/s | — |
Actual recorded February data for each year, 1981–2025 — sourced from NASA POWER.
The average high in February is around 6.2°C with lows near -6.4°C (mean -0.1°C), based on 45 years of NASA POWER data.
February averages 20 mm of rainfall in Castle Rock, one of the drier months. The wettest on record was 41 mm in 2015.
The hottest February reached 19°C in 2017. The coldest dipped to -25.2°C in 2011.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average February temperatures have risen by about 0.2°C. Daytime highs moved from 6°C to 6.4°C and overnight lows from -6.8°C to -6.8°C over the same span.
February is one of the cooler months of the year in Castle Rock and one of the drier months, so plan for around 6.2°C daytime highs and -6.4°C at night.
Not quite — February is the 3rd coolest month in Castle Rock, averaging -0.1°C.
For February in Castle Rock, pack warm layers and a jacket for chilly mornings, with typical highs of 6.2°C and lows of -6.4°C.
Relative humidity in February averages 55% — moderately humid.
Average wind speed in February is 2.9 m/s. The windiest February on record averaged 3.7 m/s (1984).
The wettest February on record was 2015 with 41 mm. On average, February sees 20 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Castle Rock 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.
