biodiversity homepage      

Observations by Gary Fewless for Green Bay WI (Lat.N 44.51° Long. W 88.02° ), except as noted. For flowers lacking conspicuous petals or sepals I define "anthesis" as release of pollen by mature anthers.

November 2009northern forest

Mouse-over the photo for the identity of the subject

Nov 30 In summary November 2009 was quite warm and relatively dry. Temperatures averaged 7.8° F above average and precipitation for the month totaled 1.38 inches, about 0.89 inches below average.
Nov 26 Over the last 3 days Green Bay received 0.86 inches of rain.
Nov 24 In spite of the relatively late date for us, there are still a few flowering individuals of some species, including Solidago canadensis (Canada goldenrod) in this photo and enlargement.
Nov 21

Mild weather continues. High temperature in Green Bay was 52° F.

The fruits of the bittersweet family are very distinctive at this time of year, as in this example from Euonymous europaeus (spindle-tree). In addition to the four species of Euonymus in Wisconsin, there are also two species in the genus Celastrus.

Nov 19 Mild temperatures (high 48° F) and Green Bay received 0.49 inches of rain--the first significant rain this month to date.
Nov 17

Not as cold last night (about 32° F) as the night before, but still sufficient to produce frost in Green Bay and thin ice on Prairie Pond. I can definitely feel that the exposed ground is frozen at the surface now in the Green Bay area. Both ground and small water bodies are now cold enough that this may very well begin our midwinter period of continuous frozen/iced conditions.

Much colder to our north. Laona (80 miles NNW) reported a low of 20°F and that reporting station is in the forest. Open sites are anecdotally reporting temperatures down to to mid-teens this morning.

Nov 16 A low temperature of 25° C this morning produced hard frost in the Green Bay area and thin ice on UW-Green Bay's PrairiePond, but the temperature rose quickly to an afternoon high of 47° that was more than sufficient to melt both.
Nov 15 Frost early, but clear and bright in the morning in Green Bay. Large flocks of Canada Geese provide both actors and score as they circle for landings, or take-off from local fields and waters. A flock of 13 Sandhill Cranes flew over our house, too far for a clear photo, but a welcome addition to the day.
Nov 11

There was thin ice cover over part of our Prairie Pond this morning and full ice cover on smaller ponds and puddles. It melted as the day warmed.

The annual weed species that appeared as soon as snow was partially off the arboretum trails last spring (see entry for March 17, 2009) are still actively growing. I'll try to monitor for the end of the seasona for them. They may have among the longest growing seasons of any of our plant species, essentially growing from snow off until snow on, or prolonged and deep freeze. It is likely that the observed growth over this long period involves two or more generations and not long-lived individuals.

Nov 10 Warm weather continues and it is a great time of year to get outdoors. Here's a view of UW-Green Bay's Prairie Pond.
Nov 8

Another very warm and sunny day in northeastern Wisconsin, with high temperature in Green Bay of 67° F and a low of 35°. It felt more like Spring than Fall.

Last year on Nov. 8th we had 0.9 inches of snow and a high temperature of 40° F in Green Bay.

In 2003 the morning low was 11° F on this date, and our small Prairie Pond iced over.

Here's another example of late Fall color locally. This is common winterberry holly (Ilex verticillata), a widespread species of wet soils.

Nov 7

Green Bay's high temperature of 68° F is far above our "normal" high temperature for this date (47°), and ties the record for this date (set in 1949).The sunny, warm weather is very welcome after a cool and wet October.

Young beech (Fagus grandifolia) trees frequently hold dead leaves deep into winter, as here in Brown County.

Nov 5 This view from Forest County Wisconsin documents the seasonal stage of a variety of trees on this date. In the foreground are conspicuous tamaracks (Larix laricina) with needles fully turned to brown, but many still on the trees. Behind them are many obvious white birch (Betula papyrifera) and behind them a mixed upland forest of sugar maple (Acer saccharum), Basswood (Tilia americana), White Ash (Fraxinus americana) and others. With a little effort you may also be able to see a few large white pine (Pinus strobus) and some white spruce (Picea glauca).
Nov 4 There has been an abrupt change in leaf condition on some forests in our area, as here on UWGB's Cofrin Arboretum, shown over an 8 day interval from Oct 24 to Nov 4.
Nov 3 The northern hardwood forests have lost most of their leaves now in northern Wisconsin, as here in Forest County.
Nov 2 Every year about this time there is a conspicuous release of seeds of common milkweed (Asclepias syriaca). This species, and many others, produce many seeds and the wind spreads them widely, assuring that some will land on appropriate habitat.
Nov 1

Our low temperature has fallen to 32° F or below 9 days in October (lowest 27) and the daily average temperatures were about 3.2 degrees below the "normal" for October. Today's low was 32°. Most of the leaves have turned color and many have fallen off, though the oaks will hang on to their dried, brown leaves for months yet. A walk outdoors will still provide many interesting sites, including the evergreen species such as (Pinus strobus) white pine.

On sunny days you might also see an occasional butterfly, as in the case of this mourning cloak, much worn, but easily recognizeable. This species and a few others overwinter as adults in our region and might be seen on unusually warm sunny days, even in the winter.

© 2001-2004 The Cofrin Center for Biodiversity and the University of Wisconsin Green Bay, All Rights Reserved
Last updated on May 20, 2015