Lake Havasu City
Arizona, USA
Long-term weather forecast
Long-term weather forecast
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September weather forecast and Climate
Lake Havasu City, AZ

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September is the tail of the summer season in Lake Havasu City, and the weather is usually hot. The temperatures scale down a bit as compared to the summer, and the average ranges between 75°F (23.9°C) to 101°F (38.3°C).
The days register about 11 hours of sunlight, but the intensity of the ultraviolet rays of the sun tapers down a little. Nights are usually warm and rarely drop below 70°F (21.1°C).
Light summer clothing is apt to wear in September, and air-conditioners run untiringly in September as they do in the entire summer.
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  • The average high temperature in September: 101.2°F

The warmest month (with the highest average high temperature) is July (109.2°F).
The month with the lowest average high temperature is December (62.9°F).

  • The average low temperature in September: 75.4°F

The month with the highest average low temperature is July (84.5°F).
The coldest month (with the lowest average low temperature) is December (43°F).

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  • The average rainfall in September: 0.4"

The wettest month (with the highest rainfall) is January (0.8").
Driest months (with the lowest rainfall) are May and June (0").

  • The average rainfall days in September: 2 days

Months with the highest number of rainy days are March and August (4 days).
Months with the lowest number of rainy days are May and June (1 days).

  • The average daylight in September: 12h

Months with the longest days are May, June and July (Average daylight: 14h).
Months with shortest days are January, November and December (Average daylight: 10h).

  • The average sunshine in September: 11h

Months with most sunshine are May and June (Average sunshine: 13h).
Months with least sunshine are January, November and December (Average sunshine: 8).

  • The average UV index in September: 8

The month with the highest UV index is July (UV index 11).
The month with the lowest UV index is December (UV index 2).

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