Weather in Grand Junction in September

The weather in Grand Junction in September varies radically. Daytime is relatively hot since temperatures get higher than 28 degrees, while the nights are much colder and there are no more than 11 degrees. Therefore, it is recommended to pack for both warm and chilly conditions
Avg Temp
11° - 28°
Avg Rainy Days
11
Avg Dry Days
19
Avg Snow Days
0
Full weather report for today ››

Weather forecast for the next 14 days ››

Weather Facts - Grand Junction in September

* The warmest temperature recorded in in September is 38°C
* The coldest temperature recorded in Grand Junction in September is 0°C
* The average rainfall in Grand Junction in September is 33 mm

Yearly Average for Grand Junction

Max Temp
Min Temp
Rainy Days
Jan.
4°
(-8°)
7
Feb.
9°
(-5°)
9
March
15°
(-1°)
10
April
20°
3°
10
May
26°
8°
10
June
32°
13°
7
July
35°
17°
9
August
33°
16°
13
Sep.
28°
11°
11
Oct.
21°
4°
9
Nov.
11°
(-3°)
8
Dec.
5°
(-8°)
7

Average Temperature in Grand Junction