Big Drop In June Temperatures According To UAH
By Paul Homewood
Roy Spencer has news of a big drop in satellite temperatures last month:
Second largest 2-month drop in global average satellite temperatures.
Largest 2-month drop in tropical average satellite temperatures.
NOTE: This is the fifteenth monthly update with our new Version 6.0 dataset. Differences versus the old Version 5.6 dataset are discussed here. Note we are now at “beta5” for Version 6, and the paper describing the methodology is still in peer review.
The Version 6.0 global average lower tropospheric temperature (LT) anomaly for June, 2016 is +0.34 deg. C, down 0.21 deg. C from the May value of +0.55 deg. C (click for full size version):
This gives a 2-month temperature fall of -0.37 deg. C, which is the second largest in the 37+ year satellite record…the largest was -0.43 deg. C in Feb. 1988.
In the tropics, there was a record fast 2-month cooling of -0.56 deg. C, just edging out -0.55 deg. C in June 1998 (also an El Nino weakening year).
The rapid cooling is from the weakening El Nino and approaching La Nina conditions by mid-summer or early fall.
As promised just over a week ago, here’s how we are now progressing toward a record warm year in the satellite data:
The June anomaly is well below the dashed red line which represents the average cooling rate required for the rest of 2016 to tie 1998 as the warmest year in the satellite record. So far my prediction that 2016 will end up being a new record warm year is not shaping up too well…the cooling we are seeing in the troposphere really is spectacular. Just remember, the temperature anomaly can also temporarily rebound for a month, as it did in late 1998.
The “official” UAH global image for June, 2016 should be available in the next several days here.
To put the numbers into some sort of perspective, the 10-year average temperature anomaly is 0.16C.
With most models predicting La Nina conditions by the autumn, we can expect temperatures to tumble a lot further by the end of the year.