What's the longest run of consecutive ice days in your location? (recorded, temperature)

[ben86]

What is the longest amount of time your location has stayed below freezing?

The only runs of consecutive ice days lasting for more than a week in Bingley were the following:

10 days - January 1987
8 days - February 1986 (twice); December 2010

February 1986 also deserves a mention for being the only month on record here to record a sub-freezing average max and for not going above 2.4C all month, which is impressive considering our February average is 5.6C.

It's a shame the records where I live only go back to 1973 because they don't include some much colder winters from further back - I couldn't find any data for anywhere nearer to me, but Greenwich in London had 14 ice days in a row in February 1947, whereas if they had more than one now it would seem like a big deal. Only a few miles further west Kew also recorded no sun at all for 20 consecutive days during that same month, which makes modern cold snaps and bleak winter weather just seem like nothing!

[tarzan_taborda]

2
And I doubt I can get more than that.
The dominant winds during wintertime blow from NW 80% of the time here, plus I'm just 130km away from the sea.
We would need a very potent artic blast coming from the NE to achieve more than 2 ice-days, probably a 1 in a 100 years event.

Apart from my location only Bragança and Vila Real have ever had an ice-day in Portugal, I'm just considering the 18 district capitals, but I think some spanish locations such as Soria could achieve an ice-"week".

[mar89]

3 days in a row, in January 1985 and February 2012.

[Dean York]

3 days in December 2010. A few days either side were close.
There were 12 ice days that month, with the coldest high being -5.6C, and the coldest low being -17C.

These were recorded at RAF Linton on Ouse.

[Jakobsli]

Trondheim and Norway will beat most of you on this!

The record was recorded nearly 50 years ago.

Trondheim: 50 consecutive ice-days! When: 07.01.1966 – 25.02.1966

The winter of 1966 still has the record for the coldest monthly mean, recorded in Karasjok.

Other cities in Norway:
Oslo: 58 icedays. When: 31.12.1969 – 26.02.1970
Bergen: 17 icedays. When: 27.12.1962 – 12.01.1963
Tromsø: 53 icedays. When: 01.02.1947 – 25.03.1947
Karasjok: 140 icedays! When: 11.11.1965 – 30.03.1966

Some cold facts about Karasjok:
In 1881, Karasjok had 40 consecutive days with minimum temperature -20C or colder.
In 1918, Karasjok had 19 consecutive days with minimum temperature -30C or colder, 7 of these with -40C or colder.

Source:
http://www.yr.no/nyheter/1.10876014

[cloudcrash619]

10 days in January 1940

[Rozenn]

For Paris-Orly, the most was 14 days in January 1987, followed by 13 days in January 1985.



5-day+ stretches since my birth:

5 days in Jan 1993
6 days in Dec 1996
9 days in Jan 1997
7 days in Jan 2003
6 days in Jan 2010
8 days in Feb 2012

Had the high been below freezing instead of a pathetic 1.4°C on December 30th, 1996, the Dec-Jan 96/97 stretch would have lasted 16 days, beating 1987.



Also, Paris-Montsouris had only 2 highs above freezing over a 26-day period in December 1879, but that doesn't count.

[chicagogeorge]

For Chicago it's 43 days below freezing

The winter of 1976-77 actually produced a string of 43 consecutive days below freezing, according to National Weather Service records--Chicago's longest. The sub-freezing weather commenced Dec. 28, 1976, and continued through Feb. 8, 1977

[Saritra]

19 days. January 19-February 6, 1961.

[arctic_gardener]

I'm too tired to look up the statistics but I'd wager it's something like 3 months or more. Periods of 4-6 weeks below freezing are routine every winter. Actually, here we measure the severity of a winter by how long it stays below -20 C. Any night above -20 C and any day above -10 C is considered mild for winter.