Annual FDDs per DMI N80

Annual Total Accumulated Freezing Degree Days
(August 1st thru May 31st)

Does not include this freezing season as it is not yet complete.

So, what's happening during the summer months of June & July?

Odd, melt season temperatures are actually *decreasing* - now why would that be?

N80 Freezing Degree Days thru Feb 2, 2017

Freezing Degree Days thru Feb 2, 2017
(Climatology = 1958 to 2002)

Accumulated FDDs 

Climatology: 3095.9

2016-7:          1833.0

Anomaly:     -1262.9

Implied new ice thickness to date:
Per Lebedev:
Climo:   1.755 m
2016-7:  1.288 m

Per Bilello:
Climo:   1.408 m
2016-7:  1.039 m

Accumulated Freezing Degree Days N80 thru Jan 26, 2017

Accumulated Freezing Degree Days N80 thru Jan 26, 2017:
Climatology: 2899.4
2016:            1683.9
Anomaly:     -1215.4

Implied new ice thickness to date:
Per Lebedev:
Climo: 1.688 m
2016:   1.225 m

Per Billelo
Climo:  1.355 m
2016:    0.989 m

Note: Anyone claiming a "recovery" in extent is ignoring new ice thickness this year is 27% less than climatology and 10 to 15% less than the average of the past decade.  The accumulated FDD anomaly is now greater than at *any* time in the DMI N80 dataset with 40% of the freezing season still to go.