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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 2012 Mouse-over the photo for the identity of the subject
Green Bay from UWGB looking west toward Highway I43 and Pulliam power plant at Fox River mouth

Jan 31

Green Bay's high temperature was 47° F ("normal" high for this time of year is about 25°) and accelerated the melting of snow. In spite of the addition of 2.7 inches of snow in the previous 4 days, Green Bay's snow depth is still only 3 inches as of this morning (reduced to 0 inches by the next morning).

The monthly average temperature for January 2012 was 7.1 degrees above "normal". Total precipitation (includes water equivalent of snow) was 1.4 inches, which is 0.27 below average. That amount included 10.7 inches of snow. Last year we had 19.1 iches of snow and the average temperature was 1.7° below average.

Jan 27 Snow depth in Green Bay has been reduced to 1" at the weather station.
Jan 26
The weather has been relatively warm for this time of year (high in the 30's F). Snow is melting and there are puddles in parking lots and streets. It feels more like early March than January. There has even been some fog, as here along the UW-Green Bay shoreline. Green Bay has had 8 inches of snow in January, but the standing snow depth is about 2 inches. bayshore
Jan 25
We have had a modest number of Canada Geese as year-round residents in the Green Bay area as long as I can remember, but it seems to me that there are more this winter. Certainly they are more active in my area that in recent years. geese
Jan 23
More rain this morning switching over to snow at about 9 a.m.with some very large, wet flakes, but it didn't last long. [total of 0.5 inches of snow today] snow
Jan 22 Warmer in GB with a high temperature of 35° F and a little light rain at around the freezing mark, making for some periods of very slippery roads. A portion of Highway I43 was closed due to the icy conditions.
Jan 21

The lowest temperature ever reported for Green Bay was -36° F on this date in 1888. [see note for Jan 18]

Jan 20

Green Bay's low temperature was -9 ° F at 3 a.m., after which clouds moved in and temperatures began to slowly rise to 0.0° by 9 a.m.

Green Bay received a total of 1.8 inches of snow in several small amounts over the last 4 days (0.5, 0.1, 0.7, 0.5 inches respectively)

Jan 19 Green Bay's low temperature was -7° F this morning--lowest of the year to date.
Jan 18

Green Bay's low temperature was -2° F this morning and the temperature has risen only to 11° at noon. Our coldest day of the winter to dater. Rhinelander reported -15°.

Although a few other dates have registered colder low temperatures, A case can be made that the coldest day in Green Bay history occurred on Jan 18, 1994 when the low temperature was -28° F and the high temperature was -18° F!!. Another candidate is Jan 21, 1888 when GB reached a low of -36° F, but the high reached a balmy -8° F, yielding a slightly higher daily average temperature.

Jan 17

New snow this morning on UW-Green Bay's Cofrin Arboretum


If we look at the "normal" daily highs and lows for Green Bay (the average high and low temperature for each day during 1970-2000), the coldest part of the winter falls during January 15 through 18. The normal low temperature is 6° F during this period and the high is 23° on the 15th and 24° on 16-18.
Jan 16 Green Bay is now ice-covered up past Pensaukee in Oconto County (Tom Erdman).
Jan 15 Green Bay's low temperature was 2° F again today.
Jan 14 Green Bay's low temperature of 2° F is the lowest of the season to date and the high temperature was 19°, the coldest high temperature of the winter to date.
Jan 13 The snow of yesterday continued into this morning in Green Bay dropping an additional 1.0 inch of snow.
Jan 12
Unseasonably warm weather ends and snow moves in--Green Bay receives 3.3 inches on this date. Madison had 5.2 inches, Milwaukee 6.1. snow
Jan 11

Green Bay's high temperature was 51° F today, setting a new record for this date and it is the fourth highest January temperature on record. The "normal" high temperature is 24° F.

Six honey bees and a single mosquito out and about, Green Bay (Brian Pierce).

From the 5th through today Green Bay's average daily temperature has been from 13 to 24 degrees above "normal" for this time of year -- no doubt responsible for the above observations.

Jan 6 Warm air settled into the Great Plains with record highs in the 60's F and even 71° F in north central Nebraska. There is no snow on the ground there. Green Bay reached a high of 47° F.
Jan 4
Cofrin Arboretum hightbush cranberry Highbush cranberry (Viburnum trilobum) fruits often persist into and through the winter.
Cofrin Arboretum highbush cranberry  
Jan 3 Green Bay's morning low temperature of 5° F is the lowest of the winter to date and we have 1 inch of snow on the ground. Rhinelander, 100 miles NNW reached a morning low of -10° F and they have 9 inches of snow.
Jan 1

Green Bay received 1.4 inches of snow to start the year, but weather remains mild with a high temperature of 37° F. The ground was basically bare yesterday.

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Last updated on May 20, 2015