January CET

[Don]

FINALLY, a properly cold January. Hasn't it been a long time coming?!

:lol:

[Weather-history]

Last time we had two consecutive below average Januarys for the CET against a 30 year average was 1991 and 1992

January 1991: 3.3 (-0.5)

January 1992: 3.7 (-0.1)

But when was the last time we had two consecutive Januarys that were both at least 0.5C below the 30 year average?

1979, 1980

January 1979: -0.4

January 1980: 2.3

[The PIT]

Amazingly same average here temps wise and only 3mm difference rain wise.

[reef]

For the figures shown already, there is an average decrease of -0.19C on the final values. That would put us at 1.46C for the month. There could well be some rather large adjustments still in the main body of the cold spell due to the cold nights, so we could well end well below this.

[Optimus Prime]

BBC have already released their review for January...surprisingly eager!

"Overall, it was a very cold month with mean temperatures 2.5 to 3.0C below the 1971-2000 normal over England and Wales, 2.5C below over most of Scotland and 2.0 to 2.5C below over Northern Ireland.

Provisionally, it was the coldest January over the UK since 1987 and equal eighth coldest in a series from 1914."

http://news.bbc.co.u...000/8493783.stm

And Decembers review;

"Overall, it was a very cold month with mean temperatures 1.5 to 2.0C below the 1971-2000 normal over England and Wales, 2.0 to 2.5C below over Northern Ireland and 2.5 to 3.5C below over Scotland."

And Philip Eden;

http://www.climate-u...onthly/1001.htm

"the long run of consecutive sub-zero days was probably the longest in January since 1963"

Edited February 3, 2010 by Optimus Prime

[kold weather]

Yep very interesting OP, it was really the first 10 days that were pretty exceptional, the rest of the month bar maybe the last 2-3 days was generally within 1-2C of the norm. Still looks like we have our first 'severe' month since Feb 91, about time as well!

Should also be noted that this Jan was one of the coldest months to also feature a strong El nino as well, I think only 1916-17 had colder months that featured strong El ninos...

Edited February 3, 2010 by kold weather

[AderynCoch]

The Met Office are taking their time with the final January CET figures. I wonder what's taking them so long, as they managed to get a number of individual days done straight away. They also released December's revised data right after the month ended.

[Mark Bayley]

http://hadobs.metoffice.com/hadcet/cet_mean_est_2010

Am i right in thinking that the number (far right) such as -20, -39,14,5 etc.. means -2.0c, -3.9c, 1.4c and 0.5c. So the fourth of Jan was -22, would that mean the average temperature on that day was -2.2c? What do the numbers to the left of the figures stand for?

[reef]

http://hadobs.metoffice.com/hadcet/cet_mean_est_2010

Am i right in thinking that the number (far right) such as -20, -39,14,5 etc.. means -2.0c, -3.9c, 1.4c and 0.5c. So the fourth of Jan was -22, would that mean the average temperature on that day was -2.2c? What do the numbers to the left of the figures stand for?

Yes thats right.

The numbers to the left are the date in the month, so 1st-31st (in April for example, the 31st will remain as 32768).

Of the top rows, the top number is the departure from the 1961-1990 average (-2.17C for January) and the second row the mean for the month (1.65C in this case).

[Mark Bayley]

Yes thats right.

The numbers to the left are the date in the month, so 1st-31st (in April for example, the 31st will remain as 32768).

Of the top rows, the top number is the departure from the 1961-1990 average (-2.17C for January) and the second row the mean for the month (1.65C in this case).

Thanks

[Roger J Smith]

Well, we've had extra time, we've had penalty kicks, and still there is no winner.

I have this mental image of somebody behind a desk saying "no, it just can't be that cold."

[SteveB]

Well, we've had extra time, we've had penalty kicks, and still there is no winner.

I have this mental image of somebody behind a desk saying "no, it just can't be that cold."

I can't recall whether it takes them this long when we have a Month that is significantly higher than the mean.

[Gavin P]

Well, we've had extra time, we've had penalty kicks, and still there is no winner.

I have this mental image of somebody behind a desk saying "no, it just can't be that cold."

LOL

[DAVID SNOW]

Well, we've had extra time, we've had penalty kicks, and still there is no winner.

I have this mental image of somebody behind a desk saying "no, it just can't be that cold."

Very good Roger :lol:

I smell a rat :lol:

[Nick L]

It does seem strange though how it always takes them an age to announce a low CET. Remember how long it took to announce the 2008 CET? That was ridiculous!

[AderynCoch]

Let the conspiracy theories commence!

(trying to up the figures as much as possible to make their seasonal forecast look slightly less off )

[SteveB]

Has the met office just decided to not bother updating, I like to keep an eye on the daily updates, but it seems to be a case lately of updating when somebody can be bothered.

[Optimus Prime]

3.1c to the 10th.

Mean Max 5.9c (-1.1c)

Mean Min 0.2 (-1.3)

[The PIT]

3.1c to the 10th.

Mean Max 5.9c (-1.1c)

Mean Min 0.2 (-1.3)

Arr I see they've scrapped the other 21 days as it makes Jan too cold. One way to fiddle the books

[Nick L]

How can it possibly take this long?! The Feb figure will be in before the Jan one at this rate!

[Optimus Prime]

Arr I see they've scrapped the other 21 days as it makes Jan too cold. One way to fiddle the books :lol:

Whoops wrong thread. Was expecting this to be archived by now.

Theyre rever going to release the figure. Best to just forget about January.

[Norrance]

Whoops wrong thread. Was expecting this to be archived by now.

Theyre rever going to release the figure. Best to just forget about January.

Don't forget january! I reckon it will come in somewhere between 1.3C and 1.5C.

[SteveB]

Whoops wrong thread. Was expecting this to be archived by now.

Theyre rever going to release the figure. Best to just forget about January.

Not going to be archived until they release the final figure, when that will be is anyone's guess.

[Gavin P]

Looks like we have a final number.

1.4;

http://hadobs.metoffice.com/hadcet/cet_info_mean.html

[kold weather]

Yep looks like as expected 1.4C is the final landing mark, coldest month since Jan 1987 as well which is quite impressive!