Some Facts and Figures....(5-3-12)

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Reported by: Jim Teske

Email: stormteam@9wsyr.com

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Published: 5/03/2012 5:28 pm

Updated: 5/03/2012 5:34 pm

One Streak Comes to an End:

We talked a lot at the end of last week about our March temperatures being warmer than April this year in Syracuse. However, lost in the shuffle somewhat was the fact that April 2012 was 1 F below normal and that was the first month since March 2011 with below normal temperatures. If you take a look all the way back to January 2010 we’ve have had quite a run of warm weather

Month	2010 Temps	2011 Temps	2012 Temps
January	+.5	-1.7	+7.5
February	+1.4	-.8	+6.4
March	+6.9	-.3	+12.3
April	+6.5	+3.9	-1.0
May	+4.0	+5.7
June	+1.6	+3.1
July	+3.6	+4.9
August	+2.2	+2.1
September	+1.8	+4.0
October	+1.2	+2.0
November	+1.1	+6.2
December	-3.1	+6.5

This covers a period of 2 plus years (28 months) and over this time 82% of the months had above normal temperatures. More than a quarter of the months had temperatures of at least 5 degrees F above normal. I looked back even farther to the start of 2006 and although we weren’t quite as consistently warm that whole period (76 months) fully 64% of the months had above normal temperatures.

La Nina is Over:

We can finally put the La Nina to rest. That’s the cooler than normal surface waters over the equatorial Pacific Ocean. It has been with us for the better part of two years but now the waters over the equatorial Pacific are warming. Here is the latest map of sea surface temperature anomalies out over the Pacific:

The next chart is interesting because it moves along in time from top to bottom with different spots on the equator along the bottom of the chart. One stands out are the cool temperatures in blue during the fall and winter but over the last few weeks (near the bottom) there is an increase in temperatures shown by the yellows and oranges:

What happens in the Pacific heading into the summer? Right now it looks like there will be neither La Nina or El Nino conditions this summer but what is called ‘neutral conditions. The jury is out as to what happens after that.

Latest Lake Ontario Temperature:

One last graph for you and it is the Lake Ontario temperatures.

Of course we had the big spike with the very warm weather in the middle of March but with temperatures closer to normal over the last few weeks our lake temperature has trended closer to normal.

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