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Grand Junction, CO weather and climate

Mesa County, CO · population 67,027 · about 4,656 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at Grand Junction's own coordinates.

The year at a glance

Sunny days
264
clear or partly cloudy, per year
Precipitation
9 in
per year
Wet days
70
rain or snow per year
Snowfall
34 in
per year
Hot days
71
above 90 °F
Freezing nights
119
at or below 32 °F
Humidity
51%
average relative
Average temperature
54 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
255075100JanMarMayJulSepNovDaily high, Jan: 39 °FDaily high, Feb: 47 °FDaily high, Mar: 58 °FDaily high, Apr: 66 °FDaily high, May: 77 °FDaily high, Jun: 89 °FDaily high, Jul: 94 °FDaily high, Aug: 91 °FDaily high, Sep: 82 °FDaily high, Oct: 67 °FDaily high, Nov: 52 °FDaily high, Dec: 39 °FDaily low, Jan: 19 °FDaily low, Feb: 25 °FDaily low, Mar: 33 °FDaily low, Apr: 40 °FDaily low, May: 49 °FDaily low, Jun: 58 °FDaily low, Jul: 65 °FDaily low, Aug: 63 °FDaily low, Sep: 54 °FDaily low, Oct: 41 °FDaily low, Nov: 29 °FDaily low, Dec: 20 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high394758667789949182675239
Daily low192533404958656354412920

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.00.51.0JanMarMayJulSepNovGrand Junction, Jan: 0.6 inGrand Junction, Feb: 0.7 inGrand Junction, Mar: 0.8 inGrand Junction, Apr: 0.8 inGrand Junction, May: 0.7 inGrand Junction, Jun: 0.4 inGrand Junction, Jul: 0.9 inGrand Junction, Aug: 1.3 inGrand Junction, Sep: 1.1 inGrand Junction, Oct: 0.8 inGrand Junction, Nov: 0.7 inGrand Junction, Dec: 0.6 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Grand Junction0.60.70.80.80.70.40.91.31.10.80.70.6

Monthly sunny days

Days each month with clear or partly cloudy skies.

01020JanMarMayJulSepNovGrand Junction, Jan: 20 daysGrand Junction, Feb: 17 daysGrand Junction, Mar: 20 daysGrand Junction, Apr: 19 daysGrand Junction, May: 22 daysGrand Junction, Jun: 26 daysGrand Junction, Jul: 25 daysGrand Junction, Aug: 24 daysGrand Junction, Sep: 26 daysGrand Junction, Oct: 24 daysGrand Junction, Nov: 22 daysGrand Junction, Dec: 19 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Grand Junction201720192226252426242219

Compare Grand Junction with another city

Nearby cities and popular picks. Any two cities can be compared from the home page.

See weather for every covered Colorado city

About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).