There isn't "too cold" - there's only "not properly dressed."    Properly dressed, it's pretty tough in the lower 48 to ever find some place that you can't spend a few hours outside enjoying yourself.   On the other hand, half of the country doesn't come out of their air conditioned houses 1/2 of the year, unless it's to run out to their remote started car with the air conditioning cranked full blast.  
The only thing I really mind this year is the chores I do.   3 years ago, I had to break ice out of water buckets for maybe 10 days at the most, around Jan & Feb.   This year, EVERY FREAKING DAY, except perhaps for 4, since the beginning of December.  The killer for me though, we gambled - we bred 15 of our goats on the same day last year (hormone treatments brought them into heat simultaneously).   In a span of 29 hours - from Mon 7pm to Tuesday midnight, we had 20 baby goats born.   HUGE hassle, drying them, especially all their ears, to avoid frostbite.   And, a constant concern until temperatures get back to at least 20F.