Dew point is the tempurature the air cannot hold the weight of the water in it. The water then begins to condense and form droplets. This tempurature is always below or equal to the air tempurature.
Propane prices. Maine (ME) propane users spent an average of $2.724 per gallon over the 2012-2013 heating season. This is slightly higher than the 2.436 average for the country as a whole, for the reasons explained above (distance from major supply source, colder climate, higher demand).
According to the US EIA, the average national current propane price is $2.76 per gallon (23 December 2013). Since the beginning of the 2013-2014 winter season, they have increased almost 17%. Furthermore, this does not compare well compared to last yearsâ propane price per gallon of $2.24 for the same period.