Central PA Winter 2024/2025

[CarlislePaWx]

Well, I honestly did not expect to go below zero for a third straight night.  However, currently (at 10:50pm) under clear skies and calm winds my temperature has dropped to -0.4 degrees F.  I'm actually ahead of last night in the race to the bottom.  My backup station is currently reading -1.1 F.  The stations are located roughly 20 feet apart in my backyard.  Both temperature sensors are 6 feet off the ground, so I consider both readings valid although my primary station has been the one with the slightly higher lows.  My forecast for tonight was for mostly cloudy skies and a low of +4 F.  I'm thinking the most likely thing to hamper the radiation would be clouds to roll in at some point before dawn.  As of now I'll place my predicted low in between this morning's -9.8 and Tuesday morning's -3.6 and go for a low of -6.0.  Assuming I remain below zero at midnight and record a low temp below zero, this will be the longest continuous stretch of sub-zero low's I've ever recorded at 3.  The only other possible date this might have happened that I can't remember would be January 1994.  But it seems to me that I only had 2 nights.  Other than 1994 I know I've never had more than one consecutive night below zero.