Dec 20, 2009

It's Dark Outside

Max temperatures hovered around average for the most part this past week. With the warmer temps, though, we did see four measurable snowfalls. Nothing major as three of the four were under an inch. We are currently 4.2" above the December monthly snowfall average and for the third consecutive year have exceeded that average. Last December Oshkosh broke an all-time monthly snowfall record, recording 35.6" here at OSNW3 and 33.7" officially at the WWTP. An amazing 18 days recorded measurable snowfall (Days with Measurable Snowfall), and comparing last December to this December we are two days behind. Up to this point, last December had 10 days with measurable snowfall while this December has had only 8, which is still above the Oshkosh average (6.1 days).
(OSNW3 December Observations)

(OSNW3 December 2009 Summary)

(click on graph for the month summary data - it will open a new tab/window)


Weekly Snowfall
Each of the four snowfalls last week provided just enough to keep things white. I think it's safe to say we'll have a white Christmas in Oshkosh in 2009 (NWS GRB Christmas Stats). 6" of snow covers the ground here at OSNW3 and a snowcore reading on Dec 20 resulted a water content of 1.1", which I feel is a fairly wet snow pack (Snowcore). Looking back at the archived OSNW3 and NWS data, Oshkosh has had a white Christmas since 2002. 2001 was brown.

(Dec 13, 2009 - 0.8")

(Dec 14, 2009 - 0.2")

(Dec 15, 2009 - 1.9")

(Dec 20, 2009 - 0.2")


Winter Season Duration

Congrats is in order to Bex (and myself) for predicting the "First Day of Winter" here at OSNW3. We both predicted Dec 12 would be the day. Like the "green-up" time lapse of this past growing season, I will be maintaining a "winter" time lapse as well. Below are the current images. (Winter Season Duration)

(Winter Season Duration - Thru Dec 20, 2009) - 4MB


Front of House
The snow pack is starting to settle. Speaking of settling, I read about this snowfall on the WGN blog and I think that amount of snow would settle quickly due to the weight alone. Amazing.

(FOH - Dec 19, 2009)

The "standing still sun" of Winter is upon us. Happy Solstice.