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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.

January 2013 Mouse-over the photo for the identity of the subject
deer

Jan 30
snow snow

A winter storm began in Green Bay this morning, with 6-8 inches of snow predicted and blowing and drifting. At 3:45 p.m. Green Bay has received about 7 inches of snow with air temperature of about 26° F.

Yesterdays high temperature was 45° F with light rain.

Jan 29
melt water Light rain and melt water is running in the roadside ditches on the UWGB campus. Together with warm temperatures and morning fog, it feels more like early March than late January. Temperatures have been above freezing and rising since about 1:00 a.m. and a high temperature in the upper 40's is forecast. Snow and lower temperatures are predicted in the following days.
fog over Green Bay Fog over Green Bay ice. The arch of the Highway I-43 bridge is barely visible to the right of the blue water tower. The darker color away from shore is still ice, not open water as it may appear. Green Bay is still totally ice-covered.
Jan 28
snow-covered pond New snow on Prairie Pond at UW-Green Bay. The temperature stayed above freezing all night (between 33 and 34° F) from 9 p.m. to 10:00 a.m. and then rose to 38° in the afternoon. Streets and sidewalks that were plowed/shoveled are quickly melting free of snow.
Jan 27 Green Bay received 3.2 inches of new snow, very wet and heavy. We also received the first temperature above freezing (34° F) since Jan 19.
Jan 25 Green Bay received 1.9 inches of snow today and our warmest high temperature of the last 6 days, 20° F. The local weather station had listed local snow cover as a "trace" since Jan 13.
Jan 23
  Baird Creek
Beginning our fourth consecutive day of very cold weather, Baird Creek is completely frozen over this morning. Temperatures have "warmed" a bit with an overnight low of only -2° F, and the winds are much lighter today, mostly below 10 m.p.h.
Green Bay ice-cover Green Bay is now fully ice-covered. The northern 1/2 was open through about Jan 20. Photo from National Oceanic and Atmospheric Administration's MODIS website.
Green Bay Ice Ice-cover from UWGB shoreline. The smokestack is the Pulliam electrical power plant and the bridge to its left is Highway I-43 crossing near the mouth of the Fox River.
Jan 22 More cold weather. Morning low of -8° F and a high of only 4°. The last three days have also had high winds, sending the "chill factor" into the 20's and 30's below zero in northeastern Wisconsin.
Jan 21 The cold weather continues with a morning low temperature of -6° F and a high temperature of only 6°.
Jan 20 After the warm weather yesterday, an arctic air mass move in and the overnight low temperature was 5° F followed by a high today of only 14°.
Jan 19
Green Bay's high temperature of 43° F was 19 degrees above the "normal" high for this date. On bare, south facing slopes the surface soil thawed, resulting in a little mud in places.
beardtongue It's now easy to see that some leaves remain green over winter, as here for the plant known as "beardtongue" (Penstemon digitalis). These "basal leaves" are usually insulated by a covering of snow and remain green through the winter, though they will be replaced by new leaves during the next growing season.
Jan 17

The last 5 nights in Green Bay have been colder with overnight lows from 8-19° F. Satellite images show Green Bay as ice-covered from the south end to about Pestigo Harbor, north end Bays de Noc, and some ice along the west shore. Fisherman are mostly being cautious though because the ice still has fractures and can move unexpectedly.

There is very little snow on the ground---the GB weather station has listed snow depth at "trace" since the 13th.

Jan 14 It's not easy to pick an exact day for the coldest day of the winter, without some serious footnotes, but it seems clear that on average ("normal") the coldest part of the winter in Green Bay falls in the range of January 12 through 23. If we take the middle of that range as our one coldest day then it falls on January 17 or 18. Of course it is possible to use other criteria to arrive at a slightly different date, and in any given year it is almost guaranteed to vary from that date, but it can serve as a reference.
field Almost no snow in old field on UW-Green Bay campus.
Jan 13 A colder day with a low temperature of 11° F has frozen the standing water in puddles, etc. and the exposed ground is now very solidly frozen. The lack of snow for insulation and the now frozen melt-water in the dead grasses, etc., reduces the habitat for the small mammals, which in turn are the food source for a number of larger animals.
Jan 12 Several days with highs in the upper 30's and low 40's (45° today), plus rain on the 10th and 11th have greatly diminished the snow cover in the Green Bay area. By the end of today the snow cover is essential "trace". There are numerous puddles and even a little melting of the ice along the edges of some local streams.
Jan 11 The morning low temperature was above freezing at 34° F. The recent warm weather and rain have significantly reduced our snow cover. Roads and sidewalks are clear of snow and ice and there is water pooling on top of the ice of local rivers and ponds. There was widespread fog this morning.
Jan 10 High temperatures the last three days have been 39, 39, 38° F. Green Bay received 0.29 inches of rain today.
Jan 8
Green Bay Lower (southern) Green Bay is mostly frozen,
Green Bay ice but the wind has been breaking off some large pieces and moving them around, note the open cracks in the photo at left. Eight fisherman were trapped on one of the moving pieces farther up the east shore of Green Bay yesterday, and rescued by local authorities.
Jan 7 I haven't seen an official news release, but the December water level for Lake Michigan is about 17 inches below its level at this time last year, and that appears to be the lowest December level ever recorded for Lake Michigan, at 576.15 feet. There are numerous reports though, of the effects of the low water on shipping, etc.
Jan 6 Green Bay's temperature has been continuously below freezing since December 21, until reaching 33° F today.
Jan 1 The new year in Green Bay begins with the coldest temperature of the winter to date, -6° F and the lowest daily average of 4°.

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Last updated on December 1, 2014