Measurements:
°C
°F
CURRENT WEATHER
08:45
Sioux City
44°F
SE 24 mph
Feels like: 34°F
Precip: 0%
World Resorts USA Sioux City Weather September Weather in Sioux City

Sioux City Weather: September

Average Day Temperature: 83.5°F
Average Night Temperature: 61.4°F
Number of Sunny Days: 20 days
Sunshine Hours: 11.8 - 13.1 hours
Number of Rainy Days: 1 day
Precipitation Totals: 0.5 in
detailed information

Air Temperature in September, °F

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
17
34
51
68
85
102
119
136
Day Temperature   
Night Temperature

The highest day temperature in September 2024 was 100°F. The lowest night temperature was 40°F. The average values for day and night temperatures during September were 87.3°F и 57.7°F respectivly.

Sunny, Cloudy and Gloomy days
Sunny days
Cloudy days
Gloomy days
67%
23%
10%

Most of the days in September are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in September, in

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
0.2
0.5
0.7
1.0
1.2
1.5
1.7

Precipitation total in September for Sioux City is 0.5 in.

Wind Speed in September, mph
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
2.1
4.3
6.4
8.6
10.7
12.9
15.0

The average wind speed in September is 10.4 mph. It makes September one of the most windy months of the year for Sioux City.

Average Sunny Hours Per Day
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.7
3.4
5.2
6.9
8.6
10.3
12.0

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Sioux City in September is 9.6 hours.

Best Time to Visit Sioux City
The most sunny months:
September 20 days
August 18 days
October 18 days
The most warm months:
August 88.8 °F
July 86.0 °F
September 83.5 °F
The most cold months:
January 21.9 °F
February 26.9 °F
December 31.3 °F
The most rainy months:
May 3 days
June 3 days
April 2 days
The most windy months:
April 12 mph
March 11 mph
November 10 mph
more details

Sioux City on the Weather Map

USA Resorts:
NAME
F°
Boston +26
Chicago +36
Hawaii +74
Honolulu +74
Houston +74
Las Vegas +56
Los Angeles +54
Miami +74
New York +30
Orlando +64
San Diego +54
San Francisco +48
Sarasota +60
Tampa +60
Washington +38
all resorts
24 Hours Weather Forecast
Sioux City
Local time: 08:45
23 mar, sunday
0900 44°F
SE
24 mph
1200 50°F
SE
25 mph
1500 54°F
SE
25 mph
1800 54°F
SE
17 mph
2100 42°F
SE
12 mph
24 mar, monday
0000 36°F
SE
6 mph
0300 30°F
SE
6 mph
0600 30°F
SE
6 mph