Las Vegas Weather

September 2026

Historical data
Average Temperature
35.7 °C
High
/
23.1 °C
Low
13.5mm
Precipitation
42.2°C
Peak Temp
15.0°C
Low Temp
30
Days Count

Temperature Trends

Daily high, low, and average

Weather Extremes

Most notable conditions during this period

Period High

42.2°C
Thursday, September 10

Coolest Day

26.1°C
Tuesday, September 29

Period Low

15.0°C
Tuesday, September 29

Compare with historical weather

Load the same period from the previous 15 years.

Weather Insights

Key findings from analysis for selected period

Variable with Hot Extremes

Worth noting

Average of 35.7°C but 21 very hot days (42.2°C peak).

Variable Temperatures

Worth noting

Large temperature swings (27.2°C range) for a month.

Dry Weather

Notable

Very little rainfall (14mm total).

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21 Exceptional Weather Events (showing top 3)

Info

The 3 most extreme of 21 notable days in this period:

Sep 10 Heat

Hottest day: 42.2°C

Sep 11 Heat

Very hot day: 41.6°C

Sep 9 Heat

Very hot day: 41.2°C

2 High Heat Index Days

Info

2 days where humidity amplified heat sensation (38.3°C heat index). 35.3°C temperature felt like 38.3°C due to 42% humidity.

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Very Dry Air Conditions

Worth noting

Very low average humidity of 26%. Dry desert-like conditions with minimal moisture in the air. Humidity varied significantly (8%-67% range).

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15 Very Dry Days

Info

50% of days had very low humidity (<25%). Average on dry days: 17%. Arid conditions predominant during this period.

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