Grand Junction weather by month

Frost and snow-likely months in Grand Junction

Nights in Grand Junction average 36°F (2°C) or below in 5 months (January, February, March, November and December). January, February, November and December combine average lows at or below 32°F (0°C) with 0.4 in (10 mm) or more of monthly precipitation, so precipitation then is likely to fall as snow. The coldest month is January with an average low of 22°F (-6°C) and a record low of -8°F (-22°C).

• January: average low 22°F (-6°C), record low -8°F (-22°C), 0.9 in (22 mm) of precipitation — snow-likely
• February: average low 28°F (-2°C), record low 3°F (-16°C), 1.1 in (27 mm) of precipitation — snow-likely
• March: average low 34°F (1°C), record low 8°F (-13°C), 1.2 in (30 mm) of precipitation
• November: average low 32°F (0°C), record low 11°F (-12°C), 0.9 in (22 mm) of precipitation — snow-likely
• December: average low 26°F (-4°C), record low -2°F (-19°C), 0.9 in (22 mm) of precipitation — snow-likely

These records carry temperature and precipitation, not snowfall totals.

Best time to visit Grand Junction

The most comfortable time to visit Grand Junction is generally May to June and September, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around May, totalling about 12.4 in (314 mm) a year.

Travellers who prefer heat should aim for July, when highs average 93°F (34°C). May is the month to avoid if rain would spoil your plans — it averages 2 in (52 mm), roughly 4× the rainfall of the driest month (June).