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August rainfall has already broken multiple records

CBS 6 is The Weather Authority
Posted at 10:40 AM, Aug 08, 2020
and last updated 2020-08-09 10:51:38-04

RICHMOND, Va. -- August is less than ten days old, but we have already racked up some rainfall records.

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The span of August 1 to August 6 is the wettest start to an August in weather history, going all the way back to the 1870s.

Two new daily rainfall records were set:

  • 3.61" on August 4 (previous record 2.54" from 1948)
  • 2.57" on August 6 (previous record 2.13" from 1901)

Here is a plot of rainfall from the past few days. Areas in pink are 4"+ of rain, and areas in light blue are in excess of 6".
These are estimates based on doppler radar. Rain gauges in your backyard may have recorded more or less.

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August is typically our wettest month with an average of 4.66" of rainfall. Richmond International Airport has more than doubled that with rainfall from just four days: August 3, 4, 5 and 6.

The monthly total has already achieved the status of the 9th wettest August on record. With much of the month to go, cracking into the top 5 seems likely.

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Rain chances will increase during the week. Due to the muggy air, any shower or storm that does develop will produce heavy rainfall. A slow-moving storm may create more flash flooding. Frequent clusters of storms are more likely late in the week.

Stay With CBS 6, The Weather Authority.

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