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First Ground and Air Frost Watch Season 2021-22


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Posted
  • Location: Windermere 120m asl
  • Location: Windermere 120m asl

September is around the corner, and whilst many have to wait until October and sometimes November before they record their first air frost at least, some more frost prone spots can easily record an air frost before then.  Clear skies and cold uppers can produce temps below 0 degrees in sheltered glens of Scotland even in late August.

Here we usually record our first ground frost by early October, and first air frost by about third week of October.

 

Please use this thread to report recordings of first ground and air frost of the new season.

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Posted
  • Location: halifax 125m
  • Weather Preferences: extremes the unusual and interesting facts
  • Location: halifax 125m

There have only been 10 days recorded in summer that have never recorded an air frost,5 in July and 5 in August but two of these were actually 0.0 deg.

Also to note -4.5 deg was recorded on 21st Aug 1973

No new records have been set in summer since 2001

Edited by hillbilly
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Posted
  • Location: Edmonton Alberta(via Chelmsford, Exeter & Calgary)
  • Weather Preferences: Sunshine and 15-25c
  • Location: Edmonton Alberta(via Chelmsford, Exeter & Calgary)

had our first ground frost here over a week ago now..had 2 or 3 already

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Posted
  • Location: Windermere 120m asl
  • Location: Windermere 120m asl
51 minutes ago, hillbilly said:

There have only been 10 days recorded in summer that have never recorded an air frost,5 in July and 5 in August but two of these were actually 0.0 deg.

Also to note -4.5 deg was recorded on 21st Aug 1973

No new records have been set in summer since 2001

Gosh -4.5 degrees on 21 August. What caused that and where? 

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Posted
  • Location: Yorkshire
  • Location: Yorkshire

Cold enough for some frozen windscreens at Shap, maybe?

 

WWW.ELDORADOWEATHER.COM

24 Hour Daily High and Low World Temperatures with Maximum World Precipitation / Rainfall including Northern Hemisphere High and Low Temperatures, Southern Hemisphere, United States...

Minimum Temperature Last 24h - 08/27/2021 at 08:00 UTC

No.LocationStation IDAmount

1Shap (United Kingdom)03225 2.6°C

2Sennybridge (United Kingdom)03507 2.7°C

3Aboyne (United Kingdom)03080 4°C

4Bala (United Kingdom)03409 4°C

5Altnaharra (United Kingdom)03044 4.5°C

6Tulloch Bridge (United Kingdom)03047 4.5°C

7Shobdon (United Kingdom)03520 5.3°C

8Great Dun Fell (United Kingdom)03227 5.4°C

9Trawscoed (United Kingdom)03503 5.4°C

10Hawarden (United Kingdom)03321 6.3°C

11Bournemouth Airport (United Kingdom)03862 6.4°C

12Pershore (United Kingdom)03529 6.4°C

13Keswick (United Kingdom)03212 6.5°C

14Crosby (United Kingdom)03316 6.6°C

15Exeter Airport No2 (United Kingdom)03844 6.6°C

Script courtesy of  Michael Holden of Relay Weather. Data courtesy of Ogimet

 

Edited by Aleman
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Posted
  • Location: halifax 125m
  • Weather Preferences: extremes the unusual and interesting facts
  • Location: halifax 125m
17 hours ago, damianslaw said:

Gosh -4.5 degrees on 21 August. What caused that and where? 

August Minimum records

Day°C Notes

1   -1.5   Santon Downham [Grimes Graves] (Norfolk) 1976

2    -1.1  Braemar (Aberdeenshire) 1965

3   0.0  St Harmon (Powys) 1983

4  3.0  Santon Downham [Grimes Graves] (Norfolk) 1987

5  -1.1  Grizedale (Cumbria) 1961

6  -2.2  Lagganlia (Inverness-shire) 1977

7   0.4  St Harmon (Powys) 1987

8  0.9  Dalwhinnie 1992; 1.6C/34.9F Braemar 1992; 3.0C/37.4F Lagganlia 1977; 3.7C/38.9F St Harmon 1991

9   -1.0  Grantown-on-Spey (Inverness-shire) 1986

10  -1.5  Kindrogan (Perth and Kinross) 2016

11  -1.5  Kinbrace (Sutherland) 1999

12   -3.5  Kinbrace (Sutherland) 1999

13   -1.1  Balmoral (Aberdeenshire) 1908

14-1.130.0Braemar (Aberdeenshire) 1962

15   -1.4  Kinbrace (Sutherland) 1982

16  -1.1  Dalwhinnie (Inverness-shire) 1951

17  -2.2  Glenlivet (Banffshire) 1954

18   0.3   Lagganlia (Inverness-shire) 1971

19   -2.1  Lagganlia (Inverness-shire) 1974

20  -2.7   Cannich (Inverness-shire) 1964

21  -4.5  Lagganlia (Inverness-shire) 1973; -4.4C/24.1F Grantown-on-Spey (Inverness-shire) 1973

22   -2.8  Dalwhinnie (Inverness-shire) 1944

23  -2.2  Balmoral 1932

24   -1.8  Kinbrace (Sutherland) 1999; -1.7C/29.0F Cannich (Highland) 1966

25   -1.7  Balmoral (Aberdeenshire) 1919; Grantown-on-Spey (Inverness-shire) 1966

26   -2.8  Glenlivet (Banffshire) 1952

27   -0.6  Braemar (Aberdeenshire) and Dalwhinnie (Highland) 1943; Dalwhinnie 1946

28  -1.5  Lagganlia (Inverness-shire) 1977

29   -2.8  Alwen (Conwy) 1959

30   -1.5  St Harmon (Powys) 1983

31  -1.7 Santon Downham [Grimes Graves] (Norfolk) 1964

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Posted
  • Location: halifax 125m
  • Weather Preferences: extremes the unusual and interesting facts
  • Location: halifax 125m

Interesting how -1.5 deg was recorded in England in the hot August of 1976!

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Posted
  • Location: Windermere 120m asl
  • Location: Windermere 120m asl
2 hours ago, hillbilly said:

August Minimum records

Day°C Notes

1   -1.5   Santon Downham [Grimes Graves] (Norfolk) 1976

2    -1.1  Braemar (Aberdeenshire) 1965

3   0.0  St Harmon (Powys) 1983

4  3.0  Santon Downham [Grimes Graves] (Norfolk) 1987

5  -1.1  Grizedale (Cumbria) 1961

6  -2.2  Lagganlia (Inverness-shire) 1977

7   0.4  St Harmon (Powys) 1987

8  0.9  Dalwhinnie 1992; 1.6C/34.9F Braemar 1992; 3.0C/37.4F Lagganlia 1977; 3.7C/38.9F St Harmon 1991

9   -1.0  Grantown-on-Spey (Inverness-shire) 1986

10  -1.5  Kindrogan (Perth and Kinross) 2016

11  -1.5  Kinbrace (Sutherland) 1999

12   -3.5  Kinbrace (Sutherland) 1999

13   -1.1  Balmoral (Aberdeenshire) 1908

14-1.130.0Braemar (Aberdeenshire) 1962

15   -1.4  Kinbrace (Sutherland) 1982

16  -1.1  Dalwhinnie (Inverness-shire) 1951

17  -2.2  Glenlivet (Banffshire) 1954

18   0.3   Lagganlia (Inverness-shire) 1971

19   -2.1  Lagganlia (Inverness-shire) 1974

20  -2.7   Cannich (Inverness-shire) 1964

21  -4.5  Lagganlia (Inverness-shire) 1973; -4.4C/24.1F Grantown-on-Spey (Inverness-shire) 1973

22   -2.8  Dalwhinnie (Inverness-shire) 1944

23  -2.2  Balmoral 1932

24   -1.8  Kinbrace (Sutherland) 1999; -1.7C/29.0F Cannich (Highland) 1966

25   -1.7  Balmoral (Aberdeenshire) 1919; Grantown-on-Spey (Inverness-shire) 1966

26   -2.8  Glenlivet (Banffshire) 1952

27   -0.6  Braemar (Aberdeenshire) and Dalwhinnie (Highland) 1943; Dalwhinnie 1946

28  -1.5  Lagganlia (Inverness-shire) 1977

29   -2.8  Alwen (Conwy) 1959

30   -1.5  St Harmon (Powys) 1983

31  -1.7 Santon Downham [Grimes Graves] (Norfolk) 1964

To think in some year's lowest min in the UK in December struggles to drop to -5 degrees. That -4.5 degree figure on the 21st seems suspect.. nothing else compares to it. Interesting to note the low mins in 1999 did this coincide with the effects of the sloar eclipse I wonder? Indeed not many date records since 1999, just the rogue one in 2016.

 

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Posted
  • Location: halifax 125m
  • Weather Preferences: extremes the unusual and interesting facts
  • Location: halifax 125m
2 hours ago, damianslaw said:

To think in some year's lowest min in the UK in December struggles to drop to -5 degrees. That -4.5 degree figure on the 21st seems suspect.. nothing else compares to it. Interesting to note the low mins in 1999 did this coincide with the effects of the sloar eclipse I wonder? Indeed not many date records since 1999, just the rogue one in 2016.

 

You could say it is suspect but Grantown recorded  -4.4 deg the same day

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Posted
  • Location: Yorkshire
  • Location: Yorkshire

Getting closer. 10 of the main Met stations under 5C last night, with 1.9C the lowest, at Shap again.

WWW.ELDORADOWEATHER.COM

24 Hour Daily High and Low World Temperatures with Maximum World Precipitation / Rainfall including Northern Hemisphere High and Low Temperatures, Southern Hemisphere, United States...

 

Edited by Aleman
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Posted
  • Location: Yorkshire
  • Location: Yorkshire

I wonder if an amateur station hit 0C anywhere.  0.7C is closest yet from the Met.

 

Minimum Temperature Last 24h - 08/31/2021 at 09:00 UTC

No.LocationStation IDAmount

1Tulloch Bridge (United Kingdom)03047 0.7°C

2Cairnwell (United Kingdom)03072 3.6°C

3Strathallan (United Kingdom)03144 4.7°C

4Great Dun Fell (United Kingdom)03227 4.9°C

5Bealach Na Ba No2 (United Kingdom)03039 5.8°C

6Loch Glascarnoch (United Kingdom)03031 6°C

7Glen Ogle (United Kingdom)03148 6.3°C

8Tiree (United Kingdom)03100 8.2°C

9Aultbea (United Kingdom)03034 8.5°C

10Edinburgh Gogarbank (United Kingdom)03166 8.5°C

11Tain Range (United Kingdom)03062 8.7°C

12Spadeadam (United Kingdom)03224 9.1°C

13Aviemore (United Kingdom)03063 9.2°C

14Islay: Port Ellen (United Kingdom)03105 9.2°C

15Machrihanish (United Kingdom)03111 9.3°C

Script courtesy of  Michael Holden of Relay Weather. Data courtesy of Ogimet

 

 

 

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Posted
  • Location: Musselburgh, East Lothian; 20m elevation.
  • Weather Preferences: Extremes, preferably thunderstorms, cold and bad weather.
  • Location: Musselburgh, East Lothian; 20m elevation.

On a related topic, does anyone know the last year there was an air frost in every month? I reckon it might have been 2006 (I paid attention after noticing a freezing night in the July, but my memory might not be entirely accurate), and I've not been keeping tabs of such things diligently in recent years.

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  • 2 weeks later...
Posted
  • Location: Yorkshire
  • Location: Yorkshire

Getting closer again.

 

Minimum Temperature Last 24h - 09/13/2021 at 08:00 UTC

No.LocationStation IDAmount

1Redesdale (United Kingdom)03230 1.7°C

2Loch Glascarnoch (United Kingdom)03031 2.2°C

3Aonach Mor (United Kingdom)03041 3.2°C

4Cairnwell (United Kingdom)03072 3.5°C

5Albemarle (United Kingdom)03238 5.5°C

6Great Dun Fell (United Kingdom)03227 5.5°C

7Bealach Na Ba No2 (United Kingdom)03039 5.6°C

8Edinburgh Gogarbank (United Kingdom)03166 5.7°C

9Spadeadam (United Kingdom)03224 5.9°C

10Drumalbin (United Kingdom)03155 6.7°C

11Lough Fea (United Kingdom)03911 6.7°C

12Shap (United Kingdom)03225 6.7°C

13Eskdalemuir (United Kingdom)03162 6.9°C

14Aboyne (United Kingdom)03080 7°C

15Charterhall (United Kingdom)03158 7°C

Script courtesy of  Michael Holden of Relay Weather. Data courtesy of Ogimet

WWW.ELDORADOWEATHER.COM

24 Hour Daily High and Low World Temperatures with Maximum World Precipitation / Rainfall including Northern Hemisphere High and Low Temperatures, Southern Hemisphere, United States...

 

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Posted
  • Location: halifax 125m
  • Weather Preferences: extremes the unusual and interesting facts
  • Location: halifax 125m
On 02/09/2021 at 11:48, DogToffee said:

On a related topic, does anyone know the last year there was an air frost in every month? I reckon it might have been 2006 (I paid attention after noticing a freezing night in the July, but my memory might not be entirely accurate), and I've not been keeping tabs of such things diligently in recent years.

https://www.metoffice.gov.uk/pub/data/weather/uk/climate/stationdata/braemardata.txt

An interesting question but Breamar has only managed it once in 1973

 

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Posted
  • Location: Windermere 120m asl
  • Location: Windermere 120m asl

Turning into a later starter this year it seems on the frost front. Too much cloud at night and milder uppers, just need an injection of clear skies and Highland region would see an air frost soon I think.

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Posted
  • Location: Musselburgh, East Lothian; 20m elevation.
  • Weather Preferences: Extremes, preferably thunderstorms, cold and bad weather.
  • Location: Musselburgh, East Lothian; 20m elevation.
14 hours ago, hillbilly said:

https://www.metoffice.gov.uk/pub/data/weather/uk/climate/stationdata/braemardata.txt

An interesting question but Breamar has only managed it once in 1973

 

I'm probably being dim, but how can you tell from that data?

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Posted
  • Location: halifax 125m
  • Weather Preferences: extremes the unusual and interesting facts
  • Location: halifax 125m
9 hours ago, DogToffee said:

I'm probably being dim, but how can you tell from that data?

List from the left 

Year         Month     max temp[average]     min temp[av]    AF [air frosts per month]

Edited by hillbilly
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Posted
  • Location: Musselburgh, East Lothian; 20m elevation.
  • Weather Preferences: Extremes, preferably thunderstorms, cold and bad weather.
  • Location: Musselburgh, East Lothian; 20m elevation.
On 14/09/2021 at 20:07, hillbilly said:

List from the left 

Year         Month     max temp[average]     min temp[av]    AF [air frosts per month]

Oh aye, I was being dim! Thanks.

Maybe I looked at data for Altnaharra or similar? I've searched the Met Office archives without luck. Can't even find the source of what you linked to :(

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Posted
  • Location: Windermere 120m asl
  • Location: Windermere 120m asl
4 hours ago, Osbourne One-Nil said:

3.1 last night here. It's coming!

Nearly a grass frost then.. in an average year frost prone spots in Cumbria should have recorded their first ground frost at least by end of September. Think Shap has done so, but few other places. Rest of this week looks too cloudy or winst for any frost. In many a year air frosts have been recorded here in September, suspect will be October this year.

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Posted
  • Location: Medlock Valley, Oldham, 103 metres/337 feet ASL
  • Weather Preferences: Cold, snow, thunderstorms, warm summers not too hot.
  • Location: Medlock Valley, Oldham, 103 metres/337 feet ASL
2 hours ago, damianslaw said:

Nearly a grass frost then.. in an average year frost prone spots in Cumbria should have recorded their first ground frost at least by end of September. Think Shap has done so, but few other places. Rest of this week looks too cloudy or winst for any frost. In many a year air frosts have been recorded here in September, suspect will be October this year.

1C at Shap this morning according to weatheronline. Redesdale Camp also the same. 

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