I would like to go ahead and add a 2nd deep to my hive as it is starting to get a bit crowded. The weather has been varying greatly here in Texas but I doubt we will get another freeze. Highs for the next 10 days range from 52 - 80 with the lows from 34 - 64. Its only going to go up from here I believe. Is this warm enough to add a deep or will I be giving them too much dead space to stay warm?