March is one of the cooler months of the year in Grand Junction, with average highs near 10.3°C and lows around -2.6°C (mean 3.9°C). It is about average for rainfall, averaging 37 mm of rainfall and 58% relative humidity across the period.
March is one of the cooler months of the year in Grand Junction. Across 45 years of records, the warmest March in Grand Junction was 2004 — when the month averaged 7.3°C — while the coldest was 2023 at -0.1°C. Typical March days reach 10.3°C with nights near -2.6°C. The long-term trend is warming, about 0.3°C per decade.
March is about average for rainfall in Grand Junction, averaging 37 mm of rainfall. The wettest March on record was 2019 with 78 mm, while the driest was 1999 at 9 mm.
Relative humidity in Grand Junction during March averages 58%. The most humid March was 1983 at 71%, and the least humid was 1999 at 47%.
March receives about 4.8 kWh/m²/day of solar energy in Grand Junction. The sunniest March was 2002 at 5.5 kWh/m²/day, and the cloudiest were 2000, 2019 and 2024 at 4.3.
Average wind speed in Grand Junction during March is 2.5 m/s. The windiest Marchs were 1991 and 2009 at 3.1 m/s, while the calmest was 2001 at 1.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 3.0°C | 3.9°C | 3.9°C | 4.7°C | 3.5°C | +0.5°C |
| Avg High | 9.2°C | 10.5°C | 10.4°C | 11.4°C | 9.6°C | +0.4°C |
| Avg Low | -3.2°C | -2.6°C | -2.7°C | -2.0°C | -2.7°C | +0.5°C |
| Avg Rain | 41 mm | 42 mm | 33 mm | 31 mm | 41 mm | 0 mm |
March temperatures in Grand Junction have risen by about 0.6°C between 1981–1985 and 2021–2025.
March has ranged from a record low of -17.7°C (2006) to a record high of 23.6°C (2004).
Rainfall in March is about average for rainfall, averaging 37 mm, with a wettest year of 78 mm.
A good time to visit Grand Junction
March is a good time to visit Grand Junction, with days averaging 10.3°C and nights around -2.6°C (mean 3.9°C, cooler than Grand Junction's yearly average) and moderate rainfall. August and June are marginally more temperate, but March still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 12.0°C | 5.2°C | -1.6°C | 22.9°C | -6.6°C | 20 mm | 54% | 2.8 m/s | 4.6 |
| 2024 | 9.7°C | 3.8°C | -2.1°C | 16.7°C | -6.5°C | 54 mm | 61% | 2.5 m/s | 4.3 |
| 2023 ❄️ | 5.0°C | -0.1°C | -5.2°C | 11.4°C | -11.1°C | 60 mm | 70% | 2.9 m/s | 4.6 |
| 2022 | 10.2°C | 3.8°C | -2.7°C | 22.6°C | -11.6°C | 30 mm | 55% | 2.3 m/s | 5.3 |
| 2021 | 9.9°C | 3.4°C | -3.1°C | 18.0°C | -10.5°C | 34 mm | 55% | 2.6 m/s | 4.8 |
| 2020 | 11.0°C | 4.6°C | -1.8°C | 16.3°C | -7.3°C | 46 mm | 61% | 2.8 m/s | 4.4 |
| 2019 🌧️ | 8.9°C | 3.0°C | -2.9°C | 18.6°C | -8.1°C | 78 mm | 68% | 2.3 m/s | 4.3 |
| 2018 | 11.3°C | 4.5°C | -2.4°C | 18.6°C | -7.5°C | 34 mm | 49% | 2.8 m/s | 4.5 |
| 2017 | 14.1°C | 7.2°C | 0.3°C | 23.0°C | -8.4°C | 18 mm | 54% | 2.7 m/s | 4.7 |
| 2016 | 10.9°C | 4.5°C | -1.9°C | 18.4°C | -5.6°C | 30 mm | 54% | 2.7 m/s | 4.6 |
| 2015 | 14.1°C | 7.1°C | 0.1°C | 22.9°C | -9.7°C | 21 mm | 51% | 2 m/s | 5.2 |
| 2014 | 11.0°C | 4.2°C | -2.5°C | 16.9°C | -6.1°C | 18 mm | 55% | 2.7 m/s | 4.9 |
| 2013 | 11.4°C | 4.6°C | -2.3°C | 18.3°C | -8.2°C | 16 mm | 51% | 2.3 m/s | 4.8 |
| 2012 | 13.0°C | 5.3°C | -2.4°C | 22.8°C | -13.4°C | 14 mm | 49% | 2.9 m/s | 5.4 |
| 2011 | 10.3°C | 3.9°C | -2.6°C | 18.4°C | -6.2°C | 32 mm | 59% | 2.7 m/s | 4.4 |
| 2010 | 9.4°C | 3.1°C | -3.2°C | 17.3°C | -7.6°C | 45 mm | 60% | 2.4 m/s | 4.7 |
| 2009 | 11.0°C | 4.1°C | -2.7°C | 20.1°C | -10.3°C | 25 mm | 50% | 3.1 m/s | 4.9 |
| 2008 | 8.8°C | 2.6°C | -3.7°C | 16.7°C | -7.7°C | 19 mm | 57% | 2.6 m/s | 5.1 |
| 2007 | 12.6°C | 5.6°C | -1.5°C | 20.6°C | -13.9°C | 23 mm | 55% | 2.1 m/s | 4.8 |
| 2006 | 8.0°C | 1.8°C | -4.5°C | 17.0°C | -17.7°C | 61 mm | 61% | 2.7 m/s | 4.5 |
| 2005 | 8.8°C | 3.1°C | -2.6°C | 15.9°C | -8.6°C | 45 mm | 64% | 2.4 m/s | 4.7 |
| 2004 🔥 | 14.9°C | 7.3°C | -0.4°C | 23.6°C | -7.2°C | 10 mm | 50% | 2.1 m/s | 5.3 |
| 2003 | 10.0°C | 3.5°C | -2.9°C | 18.5°C | -12.2°C | 35 mm | 59% | 2.6 m/s | 4.5 |
| 2002 | 9.1°C | 2.4°C | -4.3°C | 19.5°C | -15.6°C | 24 mm | 48% | 2.6 m/s | 5.5 |
| 2001 | 10.8°C | 4.7°C | -1.4°C | 18.0°C | -5.4°C | 40 mm | 60% | 1.9 m/s | 4.7 |
| 2000 | 9.8°C | 3.5°C | -2.8°C | 17.7°C | -6.2°C | 48 mm | 60% | 2.3 m/s | 4.3 |
| 1999 | 13.7°C | 6.0°C | -1.6°C | 19.0°C | -5.8°C | 9 mm | 47% | 2.8 m/s | 5.3 |
| 1998 | 8.3°C | 2.3°C | -3.7°C | 20.1°C | -12.9°C | 49 mm | 61% | 2.2 m/s | 4.7 |
| 1997 | 11.9°C | 4.6°C | -2.8°C | 20.1°C | -11.3°C | 20 mm | 54% | 2.3 m/s | 5.3 |
| 1996 | 9.9°C | 3.2°C | -3.4°C | 17.6°C | -9.3°C | 27 mm | 56% | 2.5 m/s | 4.9 |
| 1995 | 9.4°C | 3.5°C | -2.4°C | 17.5°C | -9.1°C | 74 mm | 64% | 2.7 m/s | 4.8 |
| 1994 | 12.4°C | 5.1°C | -2.1°C | 19.2°C | -7.1°C | 17 mm | 53% | 2.3 m/s | 5.2 |
| 1993 | 9.7°C | 3.8°C | -2.1°C | 18.4°C | -7.6°C | 52 mm | 67% | 2 m/s | 4.8 |
| 1992 | 10.3°C | 4.4°C | -1.5°C | 15.1°C | -4.3°C | 67 mm | 66% | 2 m/s | 4.7 |
| 1991 | 7.7°C | 1.8°C | -4.2°C | 14.8°C | -7.9°C | 61 mm | 61% | 3.1 m/s | 4.6 |
| 1990 | 11.2°C | 4.7°C | -1.8°C | 20.0°C | -9.4°C | 43 mm | 58% | 2.4 m/s | 4.5 |
| 1989 | 12.2°C | 4.9°C | -2.3°C | 21.1°C | -13.4°C | 29 mm | 57% | 2.9 m/s | 4.6 |
| 1988 | 8.2°C | 1.9°C | -4.4°C | 19.8°C | -10.9°C | 27 mm | 57% | 2.6 m/s | 4.8 |
| 1987 | 7.8°C | 1.6°C | -4.6°C | 17.0°C | -12.3°C | 51 mm | 63% | 2.3 m/s | 4.9 |
| 1986 | 12.4°C | 5.8°C | -0.8°C | 21.0°C | -6.7°C | 36 mm | 58% | 2.2 m/s | 5 |
| 1985 | 9.0°C | 2.6°C | -3.7°C | 17.5°C | -10.3°C | 52 mm | 60% | 2.9 m/s | 4.7 |
| 1984 | 7.8°C | 2.1°C | -3.6°C | 14.5°C | -8.0°C | 43 mm | 63% | 2.5 m/s | 4.6 |
| 1983 | 7.8°C | 2.2°C | -3.3°C | 15.7°C | -7.7°C | 55 mm | 71% | 2.4 m/s | — |
| 1982 | 8.6°C | 2.7°C | -3.1°C | 15.0°C | -6.5°C | 41 mm | 62% | 3 m/s | — |
| 1981 | 9.0°C | 3.2°C | -2.7°C | 18.9°C | -6.4°C | 35 mm | 57% | 2.4 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 10.3°C with lows near -2.6°C (mean 3.9°C), based on 45 years of NASA POWER data.
March averages 37 mm of rainfall in Grand Junction, about average for rainfall. The wettest on record was 78 mm in 2019.
The hottest March reached 23.6°C in 2004. The coldest dipped to -17.7°C in 2006.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 0.6°C. Daytime highs moved from 8.4°C to 9.4°C and overnight lows from -3.3°C to -2.9°C over the same span.
March is one of the cooler months of the year in Grand Junction and about average for rainfall, so plan for around 10.3°C daytime highs and -2.6°C at night.
Not quite — March is the 5th coolest month in Grand Junction, averaging 3.9°C.
For March in Grand Junction, pack warm layers and a jacket for chilly mornings, with typical highs of 10.3°C and lows of -2.6°C.
Relative humidity in March averages 58% — moderately humid.
Average wind speed in March is 2.5 m/s. The windiest March on record averaged 3.1 m/s (1991).
The wettest March on record was 2019 with 78 mm. On average, March sees 37 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 Grand Junction behaves each March, 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 March specifically, along with year-by-year records and how the month has changed over the decades.
