90 degree heat not done just yet

Cbus Weather Nerd

Wednesday & Thursday were our chilliest days of summer.  Thursday had a warmer afternoon, but a cooler start to the day with readings in some spots in the upper 40s.

But even with these cool temperatures and an average high of 67.5 degrees both days, we are about to make a quick turnaround, and possibly have a couple of days in a row around 90 degrees.

It was a few weeks ago I talked about how our 90 degrees days were stacking up.  The day I did that was the last time that we hit 90 degrees.  But we are still ahead of our trend for last year, and we are still on track to at least tie the average of 20 days in a year.

90 degree days per month, July is most common

Since record keeping started for Columbus in 1878 (141 years of records), we have experienced 2826 afternoons where we hit 90 or more.  July has had the bulk of the 90 degree heat with 1087 (25%) afternoons in the 90s.  

  • April: 1 day (1 of 4230 days, 0.02%)
  • May:  103 days (103 of 4371 days, 2%)
  • June:  618 days (618 of 4230 days, 15%)
  • July:  1087 days (1087 of 4371 days, 25%)
  • August:  709 days (709 of 4364 days, 16%)
  • September:  304 days (304 of 4200 days, 7%)
  • October:  4 days (4 of 4340 days, 0.1%)

The outlook is above normal temperatures 

Heading through the last week of August and the start of September, unlike last year, we are going to be warm.  In fact, we should generally remain above normal for the next few weeks taking us at least through the 1st third of the month of September.

Next week had upper 80s to around 90 in the forecast for at least the first half of the week.  Even when we cool down, it will be back to normal before we get another shot of warming up.

The 6-10 day outlook (above) from the Climate Prediction Center at NOAA shows most of the eastern 2/3rds of the US experiencing above normal temperatures as a whole heading through Labor Day weekend.

The above 8-14 days (Sept 1st-7th) outlook looks much the same.  Remember, over this period the average high drops closer to 80, and the average low closer to 60.

If you have questions about climate, heat, or any other weather, email me, dmazza@wcmh.com

-Dave

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