John McGinley, Peak to Peak. We started out with nearly two weeks of daily precipitation, lots of snow and cool temperatures. The cause was a persistent upper level trough with a series of
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John McGinley, Peak to Peak. We started out with nearly two weeks of daily precipitation, lots of snow and cool temperatures. The cause was a persistent upper level trough with a series of storms moving through. These brought rain and some thunderstorms in the first week, with snow arriving after the 7th. The big event was the foot of snow on the 13th and 14th. For the last two weeks the upper pattern changed, driving storms to the north. The weather became quite static with daily highs in the 50s with dry and windy conditions. This was finally broken on the 30-31st when some upslope brought 6 inches of snow to the area.
Precipitation: We broke our monthly normal by mid-month and then added more on the last couple of days. Total was 2.07 inches with 27.9 inches of snow, making this October one of the wettest and snowiest in recent years. One must look clear back to 2009 to see more snow: 40 inches that October. This year, the big event was the 12- inch snow on the 13th and 14th and the 6 incher on the 31st.
Temperature: While the first half of the month was cool, the latter half was warm. These combined to make the month 2.5 degrees below normal, our first below-normal month since February. Average high was 48F with an average low of 31F. Warmest day was 66F on the 3rd, the coldest high was 29F on the 10th. Coldest low was 8F on the 15th.
Winds: We had six windy (40Mph+) days. Peak wind was 53mph on the 12th.
Other features: The global upper air pattern has a huge effect on our monthly weather. We’ll look for a reestablishment of this cold trough in future weeks.
Outlook for November: A typical November has highs in the low 40s with lows in the low 20s. We typically get 18 inches of snow that melts out to 1.12 inches of liquid. Winds return with 11 windy days. For now, the upper cold pool looks like it will remain over the east-central US. This puts us in a northwesterly flow regime that will generally be dry and windy with occasional surges of polar air and light snow. Later in the month, the cool air may return to the Rockies.
