For two weeks in a row they have used less than the level four water restrictions target of 280 litres (L) per person per day.

In the week ending February 9, residents used 260L per person per day followed by 221L in the week ending February 16.

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The Bureau of Meteorology (BoM) reported on Tuesday morning of 75 millimetres of rain falling at Dubbo City Regional Airport so far this month.

Rain had fallen on 11 of the first 18 days of February 2020 with a "high" chance of showers on Tuesday expected to boost the tally.

"Sunny" conditions were forecast for Wednesday and Thursday, "mostly sunny" for Friday and Saturday, "partly cloudy" for Sunday and "mostly sunny" for Monday.

But the BoM's forecast of little if any rain from Wednesday to Monday may not spoil the city's chances of achieving a water use trifecta.

Its seven-day forecast as of Tuesday suggested Dubbo would enjoy below-average top temperatures from Wednesday to Monday.

The average maximum temperature in Dubbo in the month of February is 32.2 degrees Celsius.

Top temperatures forecast for Wednesday to Monday range from 28 to 32 degrees.

Dubbo Regional Council provides data on water use at www.dubbo.nsw.gov.au/DroughtHub.

The weekly report of per person per day water use began in the week ending November 10 when 220L was recorded.

Since then residents have been under the 280L target three times including the past two weeks.

Extreme heat has often coincided with overuse of water under level four water restrictions.

The highest per person per day use of water has been in the week ending January 5.

Residents used 393L as the temperature rose from 40 degrees Celsius on December 30 to 45 degrees on January 5.

In the week ending February 2, residents used 337L per person per day when the city had a six-day run of above 40-degree top temperatures.

Council's chief executive officer Michael McMahon tells of the majority of the water being used externally.

The online drought hub also reveals that in the week ending February 16, Wellington residents used 150L per person per day, a record low.

Geurie residents used 112L per person per day in the same period, also a record low.

Residents of the two communities have been using less than 280L per person per day for six weeks in a row.