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December Nature Almanac Shows: |
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| Each show runs about 3.5 minutes. The mp3 files are about 3.5 MB; the time to load depends on your connection speed. Problems? Click here. | |
Avg. High: 45° F
Avg. Low: 22° F
Max. High: 75° F (1965)
Min. Low: -24° F (1990)
Avg. Precip: 0.77"
Max. Precip: 4.20" (1913)
Average Snow: 13.0"
Max. Snow: 52.5" (1913)
Max Wind: 120
Gumweed (Grindelia squarrosa)
Early Easter daisies
(Townsendia hookerii and T. exscapa)

A new late-fall tradition in
Trumpeter swans disappeared from most of the prairie region during the first two-thirds of the 20th century. By the 1950s these majestic birds had grown very rare. Protection from hunting, along with reintroduction programs in the northern
Several hundred pairs now nest in the Greater Yellowstone Basin, the
December 7: Approximate date of the latest sunset in Boulder County. The sunsets begin getting earlier after this date, but the sun rises enough later that the shortest day is at the solstice
December 13-14: The Geminid meteor shower.
With an average of 100 meteors per hour radiating from near the bright star Castor, this end-of-the-calendar shower is usually one of the year’s best. For this year's performance, we'll have approximately a first-quarter moon, which will wash out many of the meteors before midnight. Geminid meteors come from 3200 Phaethon, an asteroid discovered in 1983. (Reference)
December 21: Winter solstice occurs at 12:51 p.m. MST. Join BCNA members for our annual Winter Solstice sunrise hike on White Rocks Trail the following morning.
December 21: Full moon rises at 5:15 p.m.
Photos: Steve Jones
Read Ruth Carol Cushman and Stephen Jones's Nature Almanac column in the Daily Camera "Get Out" section the first Friday of each month.
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