When to go · United States

When to go to Grand Junction

Twelve months of averages for Grand Junction, and what they say about when to go.

When to go

What the averages say

Mean daily highs and lows and the month's rain, averaged over 2001 to 2020.

On these averages, Grand Junction has a mean high between 18°C and 32°C and under 150 mm of rain in May, June, August and September.

Hot months (a mean high of 32°C or more): July.
Cold months (a mean high under 10°C): November to February.
The warmest month is July (33°C) and the coolest December (2°C). The wettest is September (40 mm) and the driest June (15 mm); about 377 mm of rain falls in a year.

How these sentences are worded

Each sentence is written from the figures by fixed rules, and says no more than they do. Mild to warm: a mean daily high from 18°C up to 32°C. Hot: 32°C or more. Cool: 10°C up to 18°C. Cold: under 10°C. Dry: under 50 mm of rain in the month; wet: 150 mm or more. Humid: a high of 25°C or more with relative humidity of 70% or more. A month is described as good for going when it is mild to warm and not wet.

Grand Junction: highs, lows and rainHighLowRain

The year at a glance

Mild to warm and dry
Mild to warm, humid or showery
Hot
Cool
Wet
Cold

JanCold
FebCold
MarCool
AprCool
MayMild–warm, dry
JunMild–warm, dry
JulHot
AugMild–warm, dry
SeptMild–warm, dry
OctCool
NovCold
DecCold

Month by month

Every month in Grand Junction

The whole year, with humidity, cloud and the sunlight reaching the ground.

Climate in Grand Junction by month: mean daily high and low, rain, and what the month is like
Month	High	Low	Rain	Humidity	Cloud	Sunlight (kWh/m²/day)	High in Dubai	What it is like
January	3°C	-8°C	29 mm	70%	57%	2.6	23°C	Cold
February	5°C	-6°C	29 mm	65%	64%	3.5	24°C	Cold
March	11°C	-3°C	32 mm	56%	60%	4.8	27°C	Cool
April	16°C	1°C	33 mm	49%	58%	6	31°C	Cool
May	22°C	6°C	31 mm	43%	53%	7	35°C	Mild to warm and dry
June	30°C	12°C	15 mm	31%	38%	8	37°C	Mild to warm and dry
July	33°C	17°C	33 mm	36%	47%	7.3	39°C	Hot
August	30°C	15°C	34 mm	40%	47%	6.5	39°C	Mild to warm and dry
September	25°C	10°C	40 mm	41%	36%	5.5	37°C	Mild to warm and dry
October	17°C	2°C	38 mm	49%	43%	4	34°C	Cool
November	9°C	-3°C	28 mm	57%	50%	2.8	29°C	Cold
December	2°C	-8°C	35 mm	69%	61%	2.2	25°C	Cold

The Dubai column is Dubai's mean daily high, for comparison.

Modelled averages for an area about 50 km across, not a weather station's record: NASA POWER climatology, 2001–2020. These data were obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program.

The model's grid cell sits about 504 m higher than the town, so real temperatures there run a little warmer than these.

When to go nearby

Plan it

Plan a trip to Grand Junction

Tell us when and who is travelling, and a person puts the flights, the stays and the rest into one quote.

Plan a trip to Grand Junction More about Grand Junction When to go

Month

High

Low

Rain

Humidity

Cloud

Sunlight (kWh/m²/day)

High in Dubai

What it is like

January

3°C

-8°C

29 mm

70%

57%

2.6

23°C

Cold

February

5°C

-6°C

29 mm

65%

64%

3.5

24°C

Cold

March

11°C

-3°C

32 mm

56%

60%

4.8

27°C

Cool

April

16°C

1°C

33 mm

49%

58%

31°C

Cool

May

22°C

6°C

31 mm

43%

53%

35°C

Mild to warm and dry

June

30°C

12°C

15 mm

31%

38%

37°C

Mild to warm and dry

July

33°C

17°C

33 mm

36%

47%

7.3

39°C

Hot

August

30°C

15°C

34 mm

40%

47%

6.5

39°C

Mild to warm and dry

September

25°C

10°C

40 mm

41%

36%

5.5

37°C

Mild to warm and dry

October

17°C

2°C

38 mm

49%

43%

34°C

Cool

November

9°C

-3°C

28 mm

57%

50%

2.8

29°C

Cold

December

2°C

-8°C

35 mm

69%

61%

2.2

25°C

Cold