Houston is asking its more than 2 million residents to conserve water amidst moderate to severe drought conditions. 

The Texas city activated a plan on Tuesday calling for "Stage One" conservation measures following an observed drop in rainfall and higher-than-normal temperatures. 

"During the past month, the City of Houston has had record-setting high temperatures above 90 degrees and a significant decrease in rainfall," Houston Public Works said in a release. "As a result, most of Houston's service area is experiencing moderate to severe drought conditions. These conditions call for implementation of Stage One water conservation measures."

The plan instructs people to limit outdoor watering to twice a week between 7 p.m. and 5 a.m. CDT. 

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Houston

A helicopter hovers above the Houston skyline as sunlight breaks through storm clouds from Tropical Storm Harvey in Texas, U.S. August 29, 2017.  (REUTERS/Adrees Latif)

Single-family residential customers with even-numbered street addresses can water on Sundays and Thursdays, and those with odd-numbered street addresses can do so on Saturdays and Wednesdays. 

All other customers are allowed to water on Tuesdays and Fridays. 

Water customers are also reminded to check and repair water leaks and sprinkler heads. 

Texas

Traffic flows at dusk with the downtown Houston skyline in the background as night falls on America's fastest growing large city October 3, 2008.  (REUTERS/Richard Carson)

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The city said the voluntary efforts would help reduce water use by 5%

According to FOX Weather, the National Weather Service shows Houston is behind its monthly average precipitation of nearly 4.3 inches. 

Houston Texas

The Houston skyline is seen beyond a railroad yard by the Houston Ship Channel in Houston, Texas, U.S., May 5, 2019.  (REUTERS/Loren Elliott)

Temperatures in Space City have been at or above 95 degrees every day since June 7.

According to the U.S. Drought Monitor, 80% of Texas is in some level of drought.

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In addition, power demand there has reached a new all-time high.

Reuters contributed to this report.