Tuesday, July 30, 2013

Below Average For Seven Straight Days, Still A Warm July Overall

A few nuggets of information in light of today's seventh day in a row of below average temperatures.

Yes, you read that right. We've been below average on temperatures each day for the past week. We've averaged just about three degrees below average in that time, with the coolest day to average Thursday of last week.  It's not a huge cool down but in the wake of a month of 70 degree nights, it's somewhat comforting to know that most of the nights of late have featured tolerable sleeping weather.

Despite the recent trend of seasonable to cool (by July standards) weather, we're still in the running for one of the warmest months of July on record. Through yesterday, we're 9th on the top ten list at 81 degrees.  11th (not on the list) is 80.6 degrees from 1887. We'll end up pretty close to there or July 1988 (10th) with the next two days factored in.

This July, believe it or not, is the coolest of the last four. It probably doesn't seem that way but our final tally is below July 2010, 2011, and 2012 -- which we can thank that cool Thursday and the relatively mild last several days for.

Continuing to make it rain statistically, the rains of June and July at the Airport (23.80") have pushed this year's rainfall total to 36.33", which is more rain than what has fallen in all of 2012 at the Airport (35.94").  Remember last summer when we were running close to nine inches below average in rain in Philadelphia around this time of the summer?  We're now twelve inches above average this year, running 150% of normal through seven months of the year. For now, we're ahead of where 2011 was in rain as well, if only because their epic rain months (August and September) were yet to occur.

Given we have yet to get through the heart of tropical season and that years where we rain in June often also have tropical systems as part of their summer portfolio, it isn't unreasonable to speculate about the potential for yet another big rain month before the year is out.  Whether we can make a run at 2011's 64.33" total remains to be seen but I would not be surprised if we add more rainy records at some point in the not-too-distant future.