1/15/2017 - Sunday
After Saturday's advisory, which turned out to have minimal results, mostly improving weather, at least for temperature. Monday still cool, Tuesday milder but some showers, then getting milder for awhile. Unfortunately mostly cloudy, sun seems hard to come by right now. Some rain possible later Friday, and later next Sunday. Again no sign of snow, so good news for most.
Looking at January-
Temperatures don't change much this month. They start out at 38 degrees for the average high, fall to 37, then go back to 38 around the 25th. The average low starts at 24, and falls 2 degrees to 22, back to 23 by around the 26th.
The record high is 73, in 1950. The record low is -22 degrees, in 1994.
The average precipitation is 3.18", average snowfall is 9.8". The snowiest one had 38.8", in 1996.
The wettest December had 8.01" of rain, in 1979.
Looking back at December-
December temperatures were above average, with the average of the highs and lows being 1.9 degrees above average, at 35.8. The average high was 43.1, the average low was 28.6 degrees.
The highest temperature was 59, occurring on the 27th. The lowest temperature was 14 degrees on the 20th.
Heating degree days were 897, 65 below average. Total for the season is 1,683 at the end of the month.
Rainfall at HIA was 0.87" below average, at 2.36". The greatest amount was 0.84" on the 30th.
Snowfall was 0.8" on the 17th.
There was only 1 clear day, and 7 cloudy days.
Information from the NWS Harrisburg preliminary monthly data.