10 Days Below 100 Degrees Possible This Month: NWS

PHOENIX, AZ — The city could see 10 or more days this month with high temperatures below 100 degrees, according to the National Weather service. Phoenix has seen three such days so far this month, and if that number climbs to 10 it would be the first time since 1971.

“The reason why we’re seeing these cooler temperatures is because we’ve been seeing these rounds of showers and thunderstorms that’s been pushing through and also quite a bit of cloud cover,” said weather service Meteorologist Isaac Smith. “All of those factors, along with increased moisture, really help to keep our temperatures down.”

This weather contrasts with last August, when Phoenix had zero days with highs that dipped into double digits and 22 days when temperatures climbed above 110 degrees, the NWS said in a Facebook post. Phoenix's average temperature for the first 11 days of August 2020 was 99.1 This year the average for the same time period is 95.8, according to weather service data.

The low temperature in Phoenix Thursday morning was 77 degrees, 7 degrees below normal for Aug. 12. The cooler weather is expected to continue through the weekend and possibly into next week.

A humid mass of air expected to remain in the area for the next few days will create conditions for showers and thunderstorms over the weekend. Residents should watch out for localized heavy rainfall and flash flooding, the NWS said.

“Just given the overall atmosphere, any of these (storms) will be capable of producing very heavy rainfall and areas of flash flooding as well," Smith said. "So people need to remember to turn around, don’t drown.”

The NWS predicts a chance of rain between 30-50 percent throughout the weekend in Phoenix, with lows expected at around 80 degrees and highs in the upper 90s.