January 2014 was slightly cooler and much drier than normal. In fact, it was the fourth driest January since records began in Tyler in 1896.
Compared with 2013, the month was 4.6 deg. Cooler, and 3.50 inches drier.
The thirty-day outlook had called for above normal temperatures and below normal precipitation. When revised in late-December, it called for near normal temperatures and near normal precipitation.
January began and ended cold, with mild temperatures at mid-month. The key factor in the month's weather was the position of the Polar Vortex, which dropped southward early and late in the month, and retreated northward at mid-month and at month's end.
A strong Arctic cold front moved through the area on the morning of the 5th, bringing cold temperatures through the afternoon of the 8th. There was a 40-hour period when readings were below freezing. Light rain accompanied the front on the 5th.
Prior to that, a weaker Arctic front came through on the 2nd with no precipitation and temperatures 4-8 degrees below normal. The stronger front lowered temperatures to 15-20 degrees below normal.
A weak disturbance and the northward-moving warm front brought widespread light rain to the region on the 9th and 10th. This was followed by a warm-up ahead of the first of a series of cold fronts which crossed beginning on the 13th. This was a Northwest Flow Event, with weak fronts crossing at about 48-hour intervals through the 20th. On that day, the Polar Vortex shifted back southwestward, and strong Arctic fronts crossed at 48-hour intervals until near the end of the month. A brief warm-up came on the 25th and 26th ahead of a strong front on the 27th.
A storm system crossed with the front of the 23rd. This brought widespread snow of between two and four inches in a 50-mile wide band from the Louisiana border east of Livingston west to Cameron. Light snow fell as far north as a Carthage-Palestine line. A few flurries fell in Tyler on the afternoon of the 23rd.
Another winter storm crossed on the 28th, bringing about an inch of sleet and snow along a Crockett-Lufkin line and eastward to the Louisiana border.
Temperatures began moderating on the 30th, and continued mild through the end of the month.
The reporting period for temperatures and phenomenon on each day is for the twenty-four hours ending at midnight hours GMT--6 p.m. CST and 7 p.m. CDT. The reporting period for precipitation is for the twenty-four hours ending at noon GMT--6 a.m. CST and 7 a.m. CDT. All times are given using the twenty-four hour clock, and are expressed in Greenwich Mean Time.
Observations are from NWS Station 41/9207/4 in Tyler, Texas. The term "normal" refers to averages from the standard climatic period 1971-2000.
MX MN OBS PCPN REMARKS
January 2014, RECORDS AND SUMMARY: