In case you have not heard already, today’s game between the Green Bay Packers and San Francisco 49ers was cold, very cold. While it took the Packers a while to sell out the game, the fans eventually bought tickets and despite the freezing temperatures, still showed up for the game. If you think those fans are crazy, it is because they are.

So, how could was it in Green Bay today? The temperature at the start of the game was 4 degrees.

Check out how some of the fans in Green Bay tried to survive the cold weather and other great pictures from today’s freezing game.

Some Fans tailgated with tents trying to stay warm

Despite the cold, plenty of people still showed up early to tailgate before the game.

Fans show off exactly how cold it was before the game started.

One bright fan tried to warm up his frozen beer by placing it on the grill, which is incredibly dangerous.

Other “smart” fans decided the best idea for the game was not to wear a shirt. Although, I doubt they kept their shirts off for long.

There was plenty of wood for sale for those looking to start a fire to keep warm before the game.

Harbaugh getting the capillaries warmed up pic.twitter.com/sXFePVVqtW — Tim Kawakami (@timkawakami) January 5, 2014

Lambeau Field from overhead is an island of brown, red and green in an ocean of white and grey http://t.co/3HqQ6koZDy — CJ Fogler (@cjzero) January 5, 2014

How to stay warm at Lambeau: Do this pic.twitter.com/DbiYRQZrg6 — FOX Sports: NFL (@NFLonFOX) January 5, 2014

Awesome pic of Packers fans tailgating today pic.twitter.com/wfeJuTkcI7 (via @PGevansiegle) — darren rovell (@darrenrovell) January 5, 2014

Tailgating update at 11:40 CT… pic.twitter.com/oSr1sw400x — Kevin Seifert (@SeifertESPN) January 5, 2014

Thought I’d show up 4 hours before game time and ask people why they would tailgate in these conditions. What I saw: pic.twitter.com/2AGfZRrTPu — Kevin Seifert (@SeifertESPN) January 5, 2014

View from the @RingCentral broadcast booth at Lambeau Field. Absolutely no green on the field. @KNBR @1077TheBone pic.twitter.com/IhS6AJG7Zc — Mike Hohler (@MikeHohler77) January 5, 2014

I am sure if the Green Bay Packers can hold onto their lead, the fans will forget all about how cold it was before and during the game.