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WARMEST YEAR EVER AT YYT


The numbers are in! (Big shout out to @rcbstormpost for passing on the final numbers)
 
It was close... but in the end, 2012 was the WARMEST YEAR in St. John's, since records began at the airport back in 1942! The average daytime for 2012 was 10.5° and the average daily temperature finished at 6.68°
 
As mentioned in my Year in Review piece, it was an unprecedented year of warmth for much of the Province. Here in St. John's in particular, the records were numerous & notable.

Jan161.PNG
2012 MONTHLY BREAKDOWN
 
There was no doubt this year was going to compete with some of the warmest ever, when we had months like January, April & September finishing a whopping 3° to 4° warmer than average. Other than March & June, pretty much every other month finished 2° degrees warmer than average!
 
JANUARY 
High: 1.6°, Low -5.5°, Avg -1.9°
(3.7° warmer than 1971-2000 average)
 
FEBRUARY
High: -0.7°, Low -6.6°, Avg -3.6°
(1.8° warmer than avg)
 
MARCH 
High: 1.1°, Low -5.4°, Avg -2.2°
(0.3° warmer than avg)
 
APRIL 
High: 10.1°, Low 0.7°, Avg 5.4°
(3.8° warmer than avg)
 
MAY 
High: 12.7°, Low 3.0°, Avg 7.9°
(1.7° warmer than avg)
 
JUNE 
High: 13.9°, Low 5.8°, Avg 9.8°
(0.4° cooler than avg & our only month below normal)
 
JULY 
High: 22.6°, Low 12.4°, Avg 17.5°
(2.1° warmer than avg)
 
AUGUST 
High: 22.5°, Low 14.0°, Avg 18.2°
(2.7° warmer than avg)
 
SEPTEMBER 
High: 19.5°, Low 10.2°, Avg 14.8°
(3.0° warmer than avg)
 
OCTOBER
High: 12.5°, Low 6.1°, Avg 9.3°
(2.4° warmer than avg)
 
NOVEMBER 
High: 7.9°, Low 1.9°, Avg 4.8°
(2.2° warmer than avg)
 
DECEMBER 
High: 2.1°, Low -2.7°, Avg -0.3°
(1.9° warmer than avg)

2012 AVERAGE
High: 10.5°, Low 2.8°, Avg 6.7°
(2° warmer than the 1971-2000 average of 4.7)
 
WARMEST YEARS AT YYT

Jan163.PNG
It's interesting to note that in 1999, St. John's actually experienced a warmer average daytime High at 10.9°, however that year the average nightly low finished at 2.3°. Compare that to this year, where the average nightly low was a full half degree warmer! No doubt, the much warmer than normal ocean temperatures in the North Atlantic this year had a major influence on keeping those overnight temperatures warmer.
 
Any doubt it's been getting warmer over the past decade? 5 of the 7 warmest years on record (including 2000 at 5.8°) have occurred since 1999!

Note the changes in the average daily temperature for St. John's in the past 14 years. A whole 1 degree warmer! Obviously it's a much smaller sample size than the previous 57 years, but it's interesting none the less!

1942-1998 daily average temp: 4.72° 
1999-2012 daily average temp: 5.75°  
 
COLDEST YEARS AT YYT

Jan162.PNG
What's interesting to note here is, 1992 wasn't just cold in St. John's, but globally thanks to the eruption of Mount Pinatubo in 1991. Scientists estimate both 1992 & 1993 were cooler than average thanks to eruption. It's interesting to see both of those years on the list!

 
Ryan 

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