Lowest daily maximum temperature record in your city (snow, day, degree)

[flamingGalah!]

The lowest daily maximum temperature recorded in Portsmouth is -5.5C in January 1987.

[dhdh]

-2.3°C January 8, 1985. Most likely the only subfreezing high ever recorded because every other day in the year has a >0°C record lowest daily maximum temp, so if another day ever had a subfreezing high, that would've been on another January 8 but I doubt that. Second coldest I can find is 1.9°C on February 6, 1991.

[homevolent]

Originally Posted by george960

Record low maximums for Queensland:

Dalby: 6.9C/44F
Brisbane: 10.2C/50F
Charleville: 8.1C/47F
Mackay: 10C/50F
Townsville: 13.9C/57F
Cairns: 14.3C/58F (Surprisingly low!)
Longreach: 8.3C/47F
Mount Isa: 9.4C/49F
Wallangarra: 2.4C/36F (Queensland record)

What about Thursday Island?

[Caleb Yeung]

Estimating by the record lows, around 5-7c

[chicagogeorge]

Originally Posted by Infamous92

LaGuardia Airport............8°F (-13.3°C) on 1/21/1985
Central Park...................2°F (-16.7°C) on 12/30/1917
Newark Liberty Airport.....7°F (-13.9°C) on 1/17/1977
John F. Kennedy Airport...8°F (-13.3°C) on 1/17/1977

Just disgusting, I'm glad I wasn't around during any of this.

NYC and Chicago have pretty similar climates but our extremes are greater here in both winter and summer

Chicago/O'Hare: -11F/-23.9C on December 24th 1983 and January 19th 1994
Chicago/Midway:-11F/-23.9C on January 19th 1994

The north and west suburbs away from Lake Michigan have seen even colder maximum temps for example McHenry-Stratton and southwest suburban Joliet recorded -15F/-26.1C

Originally Posted by Ariete

-30.3C on 9 January 1987.
Helsinki, where I was living then had -32.5C. My mom broke the radiator thermostat. Luckily I don't remember anything of that week. We had 8 nights in a row below -30C.

Are those the lowest minimum or the lowest maximum??

[nei]

Originally Posted by chicagogeorge

Are those the lowest minimum or the lowest maximum??

I'd assume lowest minimum. It's by the water, and not Siberia or something similar.

[sanfel]

Originally Posted by tarzan_taborda

Mine is -2.8ºC or 27 F on the 4th of February 1994

Monthly records

january -2.7ºc
february -2.8ºC
march -1.0ºC
april 1.6ºC
may 4.6ºC
june 6.0ºC
july 10.6ºC
august 12.0ºC
september 9.5ºC
october 4.9ºC
november 1.6ºC
December -1.6ºC

I'm curious, Are you in Portugal? If so, that location must be at a high altitude to have those record lowest daily max temps. Or am I missing something? Especially those in the summer. And especially considering the presence of the Gulf Stream, which tends to stabilize temps.

As for Buenos Aires, the lowest daily maxs are not really impressive.
These are from 1906 to present:

Jan: 17.5 C (63.5 F) in 1931
Feb: 15.9 C (60.6 F) in 1993
Mar: 13.8 C (56.8 F) in 1940
Apr: 11.1 C (52.0 F) in 1940
May: 7.3 C (45.1 F) in 2007
Jun: 4.3 C (39.7 F) in 1918
Jul: 4.8 C (40.6 F) in 1920
Aug: 6.4 C (43.5 F) in 1912
Sep: 7.0 C (44.6 F) in 1981
Oct: 9.6 C (49.3 F) in 1935
Nov: 13.0 (55.4 F) in 1931
Dec: 15.9 (60.6 F) C in 1911

These are from 2001-2012:

Jan: 18.0 C (64.4 F) in 2005
Feb: 20.5 C (68.9 F) in 2007
Mar: 17.8 C (64.0 F) in 2012
Apr: 12.9 C (55.2 F) in 2012
May: 7.3 C (45.1 F) in 2007
Jun: 9.5 C (49.1 F) in 2001
Jul: 5.7 C (42.3 F) in 2007
Aug: 8.5 C (47.3 F) in 2007
Sep: 8.1 C (46.6 F) in 2008
Oct: 13.8 C (56.8 F) in 2005
Nov: 14.5 C (58.1 F) in 2002
Dec: 18.5 (65.3 F) C in 2008

[dunno what to put here]

Originally Posted by nei

I'd assume lowest minimum. It's by the water, and not Siberia or something similar.

Helsinki had a max of -32.5C on 9 Jan 1987, -31.7C on 10 Jan 1987 and -30 on 12 Jan 1987. On those days, there was only about a 6 degree temperature difference between the max and mins.

[Joe90]

3C was the coldest I could find. That was in 1974 and is the only day to have an average below 0C. There is one day of 5C, which is the next coldest. On average 4 days a winter get down to 10C or colder.

[Jesien]

-16.1 C in February 1940 (16th)

21st Century: -13.6C on January 2006 (23rd)