February is one of the cooler months of the year in Helena, with average highs near -0.5°C and lows around -11.4°C (mean -5.9°C). It is one of the drier months, averaging 31 mm of rainfall and 85% relative humidity across the period.
February is one of the cooler months of the year in Helena. Across 45 years of records, the warmest February in Helena was 1991 — when the month averaged -0.2°C — while the coldest was 2019 at -14.2°C. Typical February days reach -0.5°C with nights near -11.4°C. The long-term trend is cooling, about 0.6°C per decade.
February is one of the drier months in Helena, averaging 31 mm of rainfall. The wettest February on record was 2014 with 73 mm, while the driest was 2005 at 6 mm.
Relative humidity in Helena during February averages 85%. The most humid February was 2019 at 96%, and the least humid was 2005 at 73%.
February receives about 2.5 kWh/m²/day of solar energy in Helena. The sunniest February was 2005 at 2.9 kWh/m²/day, and the cloudiest was 2007 at 2.2.
Average wind speed in Helena during February is 1.5 m/s. The windiest February was 2022 at 2 m/s, while the calmest was 2010 at 1.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | -5.7°C | -4.8°C | -5.2°C | -7.3°C | -7.2°C | -1.5°C |
| Avg High | -0.2°C | 0.7°C | 0.4°C | -2.1°C | -1.7°C | -1.5°C |
| Avg Low | -11.1°C | -10.4°C | -10.9°C | -12.5°C | -12.6°C | -1.5°C |
| Avg Rain | 26 mm | 23 mm | 28 mm | 42 mm | 36 mm | +9 mm |
February temperatures in Helena have fallen by about 2.1°C between 1981–1985 and 2021–2025.
February has ranged from a record low of -37°C (1989) to a record high of 15.2°C (1995).
Rainfall in February is one of the drier months, averaging 31 mm, with a wettest year of 73 mm.
A quieter season to visit Helena
If your dates are flexible, the more temperate months of July and August tend to be the most comfortable for visiting Helena. That said, February — with days averaging -0.5°C and nights around -11.4°C (mean -5.9°C) and moderate rainfall (31 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 | -4.3°C | -9.8°C | -15.3°C | 11.8°C | -29.2°C | 40 mm | 91% | 1.5 m/s | 2.7 |
| 2024 | 1.2°C | -3.6°C | -8.4°C | 10.7°C | -21.1°C | 44 mm | 86% | 1.5 m/s | 2.5 |
| 2023 | -0.6°C | -6.5°C | -12.3°C | 5.7°C | -28.3°C | 27 mm | 84% | 1.8 m/s | 2.8 |
| 2022 | 0.1°C | -5.7°C | -11.5°C | 9.4°C | -26.0°C | 16 mm | 77% | 2 m/s | 2.7 |
| 2021 | -6.2°C | -11.7°C | -17.2°C | 6.6°C | -33.2°C | 49 mm | 93% | 1.6 m/s | 2.4 |
| 2020 | -0.4°C | -5.7°C | -11.0°C | 8.8°C | -21.4°C | 38 mm | 86% | 1.8 m/s | 2.5 |
| 2019 ❄️ | -8.4°C | -14.2°C | -20.1°C | 3.6°C | -27.1°C | 68 mm | 96% | 1.3 m/s | 2.4 |
| 2018 | -5.0°C | -11.0°C | -17.0°C | 1.6°C | -27.5°C | 69 mm | 95% | 1.6 m/s | 2.3 |
| 2017 | -0.4°C | -5.2°C | -10.0°C | 8.5°C | -25.4°C | 43 mm | 87% | 1.5 m/s | 2.4 |
| 2016 | 3.0°C | -1.6°C | -6.3°C | 11.5°C | -16.2°C | 20 mm | 84% | 1.8 m/s | 2.6 |
| 2015 | 2.5°C | -2.4°C | -7.3°C | 11.5°C | -17.5°C | 27 mm | 81% | 1.5 m/s | 2.6 |
| 2014 🌧️ | -6.0°C | -11.3°C | -16.7°C | 2.1°C | -33.1°C | 73 mm | 93% | 1.7 m/s | 2.5 |
| 2013 | -0.7°C | -5.5°C | -10.4°C | 4.1°C | -16.2°C | 23 mm | 89% | 1.7 m/s | 2.4 |
| 2012 | -1.0°C | -6.2°C | -11.4°C | 2.3°C | -15.3°C | 35 mm | 89% | 1.5 m/s | 2.3 |
| 2011 | -3.4°C | -8.6°C | -13.8°C | 6.4°C | -25.9°C | 40 mm | 86% | 1.8 m/s | 2.4 |
| 2010 | -1.4°C | -6.7°C | -12.0°C | 2.2°C | -19.0°C | 21 mm | 95% | 1.1 m/s | 2.6 |
| 2009 | 2.0°C | -3.9°C | -9.7°C | 8.9°C | -16.2°C | 24 mm | 83% | 1.4 m/s | 2.7 |
| 2008 | -1.0°C | -6.3°C | -11.5°C | 4.5°C | -19.5°C | 36 mm | 94% | 1.6 m/s | 2.5 |
| 2007 | -0.3°C | -5.2°C | -10.2°C | 6.2°C | -23.7°C | 44 mm | 86% | 1.7 m/s | 2.2 |
| 2006 | -1.2°C | -7.0°C | -12.8°C | 8.8°C | -28.6°C | 32 mm | 82% | 1.8 m/s | 2.5 |
| 2005 | 3.6°C | -2.4°C | -8.4°C | 9.6°C | -13.6°C | 6 mm | 73% | 1.2 m/s | 2.9 |
| 2004 | 0.4°C | -5.2°C | -10.8°C | 7.2°C | -21.0°C | 21 mm | 90% | 1.2 m/s | 2.5 |
| 2003 | -1.6°C | -7.0°C | -12.3°C | 3.6°C | -26.9°C | 40 mm | 88% | 1.4 m/s | 2.5 |
| 2002 | 0.9°C | -5.5°C | -11.8°C | 9.5°C | -20.6°C | 22 mm | 80% | 1.7 m/s | 2.6 |
| 2001 | -1.2°C | -7.0°C | -12.9°C | 6.1°C | -19.7°C | 22 mm | 84% | 1.3 m/s | 2.8 |
| 2000 | 2.8°C | -3.0°C | -8.8°C | 8.5°C | -16.8°C | 31 mm | 83% | 1.4 m/s | 2.6 |
| 1999 | 0.0°C | -5.3°C | -10.7°C | 8.7°C | -17.9°C | 36 mm | 89% | 1.8 m/s | 2.4 |
| 1998 | 2.2°C | -3.3°C | -8.9°C | 5.8°C | -14.3°C | 17 mm | 84% | 1.3 m/s | 2.7 |
| 1997 | -1.6°C | -6.5°C | -11.4°C | 3.3°C | -21.1°C | 34 mm | 92% | 1.4 m/s | 2.7 |
| 1996 | -1.0°C | -6.4°C | -11.7°C | 8.5°C | -35.0°C | 45 mm | 84% | 1.7 m/s | 2.3 |
| 1995 | 2.3°C | -2.9°C | -8.1°C | 15.2°C | -23.6°C | 19 mm | 78% | 1.6 m/s | 2.5 |
| 1994 | -1.6°C | -7.5°C | -13.3°C | 7.7°C | -25.0°C | 21 mm | 82% | 1.6 m/s | 2.5 |
| 1993 | -3.2°C | -9.4°C | -15.7°C | 3.4°C | -26.9°C | 22 mm | 90% | 1.2 m/s | 2.7 |
| 1992 | 5.4°C | -0.5°C | -6.5°C | 13.8°C | -11.0°C | 11 mm | 78% | 1.3 m/s | 2.8 |
| 1991 🔥 | 5.0°C | -0.2°C | -5.4°C | 9.5°C | -11.4°C | 9 mm | 77% | 1.6 m/s | 2.6 |
| 1990 | -0.3°C | -6.1°C | -11.9°C | 8.7°C | -22.7°C | 17 mm | 79% | 1.8 m/s | 2.6 |
| 1989 | -7.2°C | -12.8°C | -18.5°C | 6.2°C | -37.0°C | 28 mm | 90% | 1.4 m/s | 2.6 |
| 1988 | 1.9°C | -3.7°C | -9.3°C | 12.5°C | -19.8°C | 26 mm | 80% | 1.8 m/s | 2.7 |
| 1987 | 3.0°C | -2.2°C | -7.4°C | 10.2°C | -15.9°C | 16 mm | 79% | 1.4 m/s | 2.5 |
| 1986 | -0.2°C | -5.2°C | -10.1°C | 14.8°C | -22.1°C | 48 mm | 85% | 1.4 m/s | 2.3 |
| 1985 | -3.6°C | -9.4°C | -15.3°C | 4.3°C | -31.4°C | 24 mm | 89% | 1.7 m/s | 2.6 |
| 1984 | 2.7°C | -3.1°C | -8.9°C | 8.1°C | -14.1°C | 17 mm | 81% | 1.5 m/s | 2.5 |
| 1983 | 3.2°C | -2.2°C | -7.6°C | 11.3°C | -17.6°C | 18 mm | 83% | 1.4 m/s | — |
| 1982 | -2.8°C | -8.4°C | -13.9°C | 10.1°C | -31.5°C | 32 mm | 88% | 1.5 m/s | — |
| 1981 | 1.1°C | -4.0°C | -9.2°C | 10.2°C | -31.9°C | 26 mm | 82% | 1.7 m/s | — |
Actual recorded February data for each year, 1981–2025 — sourced from NASA POWER.
The average high in February is around -0.5°C with lows near -11.4°C (mean -5.9°C), based on 45 years of NASA POWER data.
February averages 31 mm of rainfall in Helena, one of the drier months. The wettest on record was 73 mm in 2014.
The hottest February reached 15.2°C in 1995. The coldest dipped to -37°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average February temperatures have fallen by about 2.1°C. Daytime highs moved from 0.1°C to -2°C and overnight lows from -11°C to -12.9°C over the same span.
February is one of the cooler months of the year in Helena and one of the drier months, so plan for around -0.5°C daytime highs and -11.4°C at night.
Not quite — February is the 3rd coolest month in Helena, averaging -5.9°C.
For February in Helena, pack warm layers and a jacket for chilly mornings, with typical highs of -0.5°C and lows of -11.4°C.
Relative humidity in February averages 85% — quite humid.
Average wind speed in February is 1.5 m/s. The windiest February on record averaged 2 m/s (2022).
The wettest February on record was 2014 with 73 mm. On average, February sees 31 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 Helena 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.
