Post your unseasonal weather events here! (freezing, degree, sunny, degrees)
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in that report also - Snowstorm in New Zealand and floods in Mexico.
Quote:
Originally Posted by cjg5
The Alaskan Interior indeed gets hot in the summer, but such a stretch of high 80s and low 90s as they have been experiencing is a bit unusual. Usually it is mid 70s with a few low to mid 80s in the mix.
That's quite impressive considering how close they are to the Arctic. Mind you, Siberia sometimes gets these types of heatwaves too.
Quote:
Originally Posted by Weatherfan7
I think it reached 22°C here a few times, some years ago. I fainted and had to be rushed to hospital.
I'm glad you survived that historic and traumatic Buxtonian weather event and lived to tell the tale. One to tell the grand kids perhaps?
Winter 1906/1907 sunnier than summer 1912 in Durham
One of the most remarkable anomalies I have seen in a global climate, though for a variable which is rarely studied, is that at the long-record Durham Observatory station in northern England, the winter of 1906/1907 with 236 hours sunshine was sunnier than the summer of 1912 with 223 hours! [Figures taken from ‘The Durham Meteorological Record, 1847-1940’ by Gordon Manley in Quarterly Journal of the Royal Meteological Society, volume 67 (October 1941), issue 292, pages 363–380]
Given the large difference in day length between summer and winter at Durham’s latitude of 54˚ from the equator, that is an major difference in percentage of possible sunshine, especially in a place where sunshine is restricted by cloudiness and even more by anticyclonic gloom when it is dry during the winter. There would be about or a little more than twice as much possible sunshine in the summer as in the winter in Durham, so for the sunniest winter to have had more sunshine than the dullest summer, its possible sunshine must have been more than twice as great.
Manley does not provide figures of possible sunshine for either case, but he does say that “The well-known dullness of the summer of 1912, attributed to the eruption of Mt. Katmai in Alaska, was exceptionally remarkable at Durham.” June 1912 had only 18 percent of possible sunshine, slightly more than half the average of 34 percent, whilst August, besides being the second-last record-cool CET month, was even worse with only 14 percent!
Another huge anomaly in the Durham Observatory sunshine record is that both November 1886 with 83 hours total sunshine, and December 1886 with a remarkable 79 hours, were sunnier than September 1886 with 73 hours. The sunshine figures for December 1886 were remarkable throughout the UK – although data are imprecise, reports indicate that the month would have had sunshine hours up to 90 hours over England and Wales, and 80 hours over the UK as a whole, with possibly up to 100 hours in the far south and there’s certainly a chance the current UK record of 119.8 hours in Jersey during December 2001 was exceeded. Reports from Symons’ British Rainfall (page 91) said:
“Horncastle, Bucknall: Mean temperature 6˚[Fahrenheit] below the average, with continuous frost after the 14th. The mean temperature of 21st (19.7˚F) was the lowest since January 17th 1881. The most remarkable feature was the large amount of sunshine, the mean amount of cloud being only 3.9 [tenths] as against 5.3 [tenths] in 1881, the previous lowest”
“Worksop, Hodsock: The coldest December since 1879, with rainfall much above the average. The duration of bright sunshine (61 hours) was more than double that of any of the last four Decembers, Mean temperature more than 2˚[Fahrenheit] below average. The first half of the month was open, but frost prevailed during the second half though no extreme cold occurred”
Last edited by mianfei; 01-02-2016 at 04:17 AM..
Reason: Forgot another note – September 1886 duller than November and December 1886
I know I've mentioned this many times before, but:
Aberdeen Dyce airport:
January 2012: 83.3 hours (+52%) beat
June 2012: 80.8 hours (-44%) and...
July 2012: 69.4 hours (-52%)
March 2012: 163.9 hours (+45%) beat both June and July put together!
It seems more special when it happens in the same year, even though Aberdeen is a special case by British standards because it's sheltered by the mountains from the usual SW winter winds (so is prone to relatively sunny winter weather), and because it's on the east coast it is prone to gloom in the summer when the winds are more likely to come off the sea.
In 2008 Hampstead also had lying snow in March, April, October and November (April snow is rare there and October snow is almost unique) but no snow in any of the winter months.
Feb 2008 had 138 hrs of sunshine in London, August 2008 only had 115 hours or so (the sunniest and cloudiest on record). Also there was snow in April 2008, and falling snow on 28th October 2008 - the first October snowfall for 74 years.
Nothing terribly unseasonable in my part of the world but check out this past December for the Eastern Seaboard of the United States:
New York City; average temperature came in at 50.8 degrees (10.3 in C). Normal is 37.1 (not quite 3). Their average minimum temperature beat the previous record warmest average temperature by nearly a full degree (F). Central Park didn't record a single day of frost.
Boston cobbled together their coldest winter month ever (February) and their warmest winter month ever (December) in the same year, 2015.
Temperatures broke 90 (~32.2) degrees as far north as Georgia this past December.
Hartford and New Haven in Connecticut have fairly complete weather records dating back to the 1780's and have never seen anything like this year's December warmth.
One for the books and not likely to be repeated anytime soon.
Longyearbyen, Svalbard has been consistently above freezing for over 5 days - in December and January! It reached 46 F / 8 C on December 29. This above freezing spell - accompanied by rain - has been ongoing since 10 pm on December 28. They should make it 6-7 days. If they make it to 10 pm January 4 - not an impossible task, given the forecast has them above freezing until midday January 4, so it's only a stretch of several more hours - they will have a week. On the webcam, it appears that much of the snow has melted off and the roads are wet. It's hard to see because of the polar night though.
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Winter 1906/1907 sunnier than summer 1912 in Durham
