World Resorts USA Grand Junction Weather

Grand Junction weather in September

Weather in Grand Junction: September

Average day temperature: 82.3°F
Average night temperature: 55.7°F
Number of sunny days: 23 days
Day length: 11.8 - 13.0 hours
Number of rainy days: 1 day
Precipitation totals: 0.3 in.

Air temperature in September, °F

Show year:
2023
2022
2021

The highest day temperature during September of 2023 was 89°F. At the same time the lowest night temperature was 43°F. Day and night temperature averages during September were 80.5°F and 50.5°F.

Sunny, partly cloudy and cloudy days

Mostly all days in September are sunny but cloudy days are also possible.

Precipitation total in September, in.

Precipitation total value in Grand Junction in September is 0.3 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 5.7 mph

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 10.1.

Best time for vacation in Grand Junction

Sunniest months:
October 24 days
September 23 days
August 22 days
Warmest months:
July 93.2 °F
August 90.8 °F
June 86.0 °F
Coldest months:
January 34.8 °F
December 38.6 °F
February 39.3 °F
Rainiest months:
October 1 day
March 1 day
June 1 day
Windiest months:
April 7.2 mph
May 7.0 mph
June 6.9 mph

Grand Junction on a weather map

Grand Junction
+52°F
NW 6 mph
Feels like: +50°F
Precip.: 0%
Places in USA:
Name
°F
+52°F
+59°F
+75°F
+73°F
+73°F
+59°F
+84°F
+59°F
+77°F
+61°F
+52°F
+79°F
+81°F
+75°F
+66°F
24 Hours Forecast
Grand Junction
Local time: 02:17
May 19, sunday
0300
52°F
NW
6 mph
0600
52°F
NW
5 mph
0900
68°F
NW
9 mph
1200
75°F
E
14 mph
1500
81°F
E
19 mph
1800
79°F
NE
19 mph
2100
63°F
NE
7 mph
May 20, monday
0000
54°F
N
2 mph
Units of measurement: °C / °F