Coldest May on Record? Unseasonable chill from visit of Polar Vortex due to dip in Jet Stream makes it feel more like March or early April than early May

After a relatively mild,snowless summer,it seems like Old Man Winter doesn't want to give up the ghost just yet even though we're only 5 or 6 weeks from the 2017 Summer Solstice. Due to the Jet Stream dipping unusually far to the south for this time of year, allowing for an unseasonable intrusion of the Polar Vortex into the Northeastern US, this spring is looking to be one of the coldest on record and certainly May 2017 could go down as one of the coldest Mays on record because of this.For an example; here's the listing of high and low temperatures for one such location in the northeastern US and the NYC area in particular; White Plains,NY; a suburban New York city in suburban Westchester County for how many days in a row in which high temperatures have been below normal for this location,the streak being current as of 1:30AM,EDT,May 14,2017, from weatherunderground.com:









May 3:                63/45           64/46           -1/-1
May 4:                61/39           64/46           -3/-7
May 5:                60/48           64/46           -4/+2
May 6:                64/52           65/47           -1/+5
May 7:                54/46           65/47          -11/-1
May 8:                55/43           65/47          -10/-4
May 9:                58/42           65/47           - 7/-5
May 10:              61/45           65/47            -4/-2
May 11:              60/42           65/47            -5/-5
May 12:              61/43           66/48            -5/-5
May 13:              54/44           66/48          -12/-4







-Consecutive days below normal: 11 straight
-Average departure from normal high temps: -5 degrees (60 degrees compared to 65 degrees being normal for this 11-day time period in early May)