I'd like to get the most accurate daily temperature readings as I can but I have a problem with times. i.e Minimum Temperatures between 6PM and 9AM are tricky to judge on which actual date the minimum temperature was recorded. Instead of getting data for a specific date, do you for minumum temperatures use two dates i.e Night 17th/18th October. My technique is:
Record Max/Min Temps between 8am and 6pm during one day and to then record max/min temps between 6pm and 8am to get an accurate idea of the min temp of that night but I don't know what I would do if the max temp was during the night and the min temp was during the day,
I would like to hear your views.
0
Poll: What Time(s) Do You Reset/record Your Thermometer Readings
Started by A Scottish Winter's Tale, Oct 17 2011 13:05
16 replies to this topic
#1
A Scottish Winter's Tale
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Posted 17 October 2011 - 13:05
2010/2011: Amazing with 30 days of falling snow, more than 50 days of lying snow and a white Christmas plus a Big Freeze December.
2011/2012: Satisfactory with 20 days of falling snow, 10 days of lying snow and a good December for snow.
Failite gu Alba - Welcome to Scotland!
2011/2012: Satisfactory with 20 days of falling snow, 10 days of lying snow and a good December for snow.
Failite gu Alba - Welcome to Scotland!
#2
Isolated Frost
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Posted 17 October 2011 - 13:13
Shouldn't you be in school? 
Hoping for a future in meteorology!
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#3
A Scottish Winter's Tale
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Posted 17 October 2011 - 13:15
Isolated Frost, on 17 October 2011 - 13:13 , said:
Shouldn't you be in school?
I'm on my October Hols.
2010/2011: Amazing with 30 days of falling snow, more than 50 days of lying snow and a white Christmas plus a Big Freeze December.
2011/2012: Satisfactory with 20 days of falling snow, 10 days of lying snow and a good December for snow.
Failite gu Alba - Welcome to Scotland!
2011/2012: Satisfactory with 20 days of falling snow, 10 days of lying snow and a good December for snow.
Failite gu Alba - Welcome to Scotland!
#4
Isolated Frost
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Posted 17 October 2011 - 13:31
A Winter, on 17 October 2011 - 13:15 , said:
I'm on my October Hols.
Hoping for a future in meteorology!
Stratosphere Temperature Watch http://forum.netweat...watch-20112012/
In-depth and Technical Model Discussion http://forum.netweat...del-discussion/
Arctic Ice Discussion http://forum.netweat...n-the-refreeze/
Snow and Ice in the Northern Hemisphere http://forum.netweat...isphere-201112/
Stratosphere Temperature Watch http://forum.netweat...watch-20112012/
In-depth and Technical Model Discussion http://forum.netweat...del-discussion/
Arctic Ice Discussion http://forum.netweat...n-the-refreeze/
Snow and Ice in the Northern Hemisphere http://forum.netweat...isphere-201112/
#5
gottolovethisweather
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Posted 17 October 2011 - 13:50
Ditto.
I am also, lucky enough to own an AWS but previously, I made observing to Met Standard timings, i.e. 9am to 9pm or even 9am to 6pm. In the event of an increasing temperature overnight, see if you can possibly track the temperature somehow and see what was being reported at 0:01am.
This can often be a topic of hot debate soothers may well have a differing opinion.
Cheers
gottolovethisweather
I am also, lucky enough to own an AWS but previously, I made observing to Met Standard timings, i.e. 9am to 9pm or even 9am to 6pm. In the event of an increasing temperature overnight, see if you can possibly track the temperature somehow and see what was being reported at 0:01am.
This can often be a topic of hot debate soothers may well have a differing opinion.
Cheers
gottolovethisweather
Formally STORMBOY, come visit my Blog http://naturestimeline.wordpress.com/ and you'll learn more about this slightly eccentric anorak, who goes by the name of Tony!
For those that may be interested, I have a weather station that can viewed via the above link or directly via Weather Underground at http://www.wundergro...ation=IWESTBER2
Finally, if I may quote Mr. Data.
"Wasn't it enough that we lived through the coldest December for over 100 years that no one alive has experienced?"
For those that may be interested, I have a weather station that can viewed via the above link or directly via Weather Underground at http://www.wundergro...ation=IWESTBER2
Finally, if I may quote Mr. Data.
"Wasn't it enough that we lived through the coldest December for over 100 years that no one alive has experienced?"
#6
Aaron
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Posted 17 October 2011 - 14:13
12am.. less confusing that way
2012
Max temperature +22.1°C
Minimum temperature -7.9°C
Thunder: 1
Lightning: 1
Max temperature +22.1°C
Minimum temperature -7.9°C
Thunder: 1
Lightning: 1
#7
Dorsetbred
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Posted 17 October 2011 - 17:15
Running a 24 cycle so it resets 9am
#8
Backtrack
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Posted 17 October 2011 - 18:12
Isolated Frost, on 17 October 2011 - 13:13 , said:
Shouldn't you be in school?
Shouldn't you of been?
On topic: I have a weather station, it does that mallarky for me.
Winter 2011/2012.
Snow falling: 5
Snow Lying: 2 - 16/12/11. Heavy snow most of the morning into afternoon. Stopped 2pm. 2 inches. (20/02/12 - dusting)
Lowest temperature: -5.5C (10/02/12 @ 4:47am)
Ice days: 0
Frosts: 21
Air frosts: 15
Days with hail falling: 8
http://convergence-zone.blogspot.com/
Snow falling: 5
Snow Lying: 2 - 16/12/11. Heavy snow most of the morning into afternoon. Stopped 2pm. 2 inches. (20/02/12 - dusting)
Lowest temperature: -5.5C (10/02/12 @ 4:47am)
Ice days: 0
Frosts: 21
Air frosts: 15
Days with hail falling: 8
http://convergence-zone.blogspot.com/
#9
Isolated Frost
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Posted 17 October 2011 - 18:17
Backtrack, on 17 October 2011 - 18:12 , said:
Shouldn't you of been?
On topic: I have a weather station, it does that mallarky for me.
Hoping for a future in meteorology!
Stratosphere Temperature Watch http://forum.netweat...watch-20112012/
In-depth and Technical Model Discussion http://forum.netweat...del-discussion/
Arctic Ice Discussion http://forum.netweat...n-the-refreeze/
Snow and Ice in the Northern Hemisphere http://forum.netweat...isphere-201112/
Stratosphere Temperature Watch http://forum.netweat...watch-20112012/
In-depth and Technical Model Discussion http://forum.netweat...del-discussion/
Arctic Ice Discussion http://forum.netweat...n-the-refreeze/
Snow and Ice in the Northern Hemisphere http://forum.netweat...isphere-201112/
#10
Snowstorm1
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Posted 17 October 2011 - 19:55
Isolated Frost, on 17 October 2011 - 18:17 , said:
Haha alas - smartphones at lunch
Lunch at 2:13?!
Michael
17m ASL
Thornaby Near Stockton-on-tees
10 Miles from the coast
My Weather Station http://www.wundergro...?ID=IENGLAND295
Snow Days (50% or more snow laying at 9am)
November = 0 December = 0 January = 0 February = 5th (3cm-5cm), 6th (dusting - 2cm),
This Winter 2011/2012 is going to be BONE CHILLINGLY COLD?! :D
SACRA Member 00910
Council OF Cold Member 5
17m ASL
Thornaby Near Stockton-on-tees
10 Miles from the coast
My Weather Station http://www.wundergro...?ID=IENGLAND295
Snow Days (50% or more snow laying at 9am)
November = 0 December = 0 January = 0 February = 5th (3cm-5cm), 6th (dusting - 2cm),
This Winter 2011/2012 is going to be BONE CHILLINGLY COLD?! :D
SACRA Member 00910
Council OF Cold Member 5
#11
Isolated Frost
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Posted 17 October 2011 - 19:57
Snowstorm1, on 17 October 2011 - 19:55 , said:
Lunch at 2:13?!
Hoping for a future in meteorology!
Stratosphere Temperature Watch http://forum.netweat...watch-20112012/
In-depth and Technical Model Discussion http://forum.netweat...del-discussion/
Arctic Ice Discussion http://forum.netweat...n-the-refreeze/
Snow and Ice in the Northern Hemisphere http://forum.netweat...isphere-201112/
Stratosphere Temperature Watch http://forum.netweat...watch-20112012/
In-depth and Technical Model Discussion http://forum.netweat...del-discussion/
Arctic Ice Discussion http://forum.netweat...n-the-refreeze/
Snow and Ice in the Northern Hemisphere http://forum.netweat...isphere-201112/
#12
Snowstorm1
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Posted 17 October 2011 - 20:08
Isolated Frost, on 17 October 2011 - 19:57 , said:
Aye - timetable was screwed up with cross country and that today.
Ah right
Anyways Id say 9am and 9pm but Ive got a weather station which is fine so I dont have to do it
Michael
17m ASL
Thornaby Near Stockton-on-tees
10 Miles from the coast
My Weather Station http://www.wundergro...?ID=IENGLAND295
Snow Days (50% or more snow laying at 9am)
November = 0 December = 0 January = 0 February = 5th (3cm-5cm), 6th (dusting - 2cm),
This Winter 2011/2012 is going to be BONE CHILLINGLY COLD?! :D
SACRA Member 00910
Council OF Cold Member 5
17m ASL
Thornaby Near Stockton-on-tees
10 Miles from the coast
My Weather Station http://www.wundergro...?ID=IENGLAND295
Snow Days (50% or more snow laying at 9am)
November = 0 December = 0 January = 0 February = 5th (3cm-5cm), 6th (dusting - 2cm),
This Winter 2011/2012 is going to be BONE CHILLINGLY COLD?! :D
SACRA Member 00910
Council OF Cold Member 5
#13
Backtrack
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Kamehameha!
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Posted 18 October 2011 - 09:19
Isolated Frost, on 17 October 2011 - 18:17 , said:
Haha alas - smartphones at lunch
I like to have my lunch early.
Winter 2011/2012.
Snow falling: 5
Snow Lying: 2 - 16/12/11. Heavy snow most of the morning into afternoon. Stopped 2pm. 2 inches. (20/02/12 - dusting)
Lowest temperature: -5.5C (10/02/12 @ 4:47am)
Ice days: 0
Frosts: 21
Air frosts: 15
Days with hail falling: 8
http://convergence-zone.blogspot.com/
Snow falling: 5
Snow Lying: 2 - 16/12/11. Heavy snow most of the morning into afternoon. Stopped 2pm. 2 inches. (20/02/12 - dusting)
Lowest temperature: -5.5C (10/02/12 @ 4:47am)
Ice days: 0
Frosts: 21
Air frosts: 15
Days with hail falling: 8
http://convergence-zone.blogspot.com/
#14
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Posted 18 October 2011 - 13:27
There is no need to get hung up on this. So long as you do it the same time each day it is okay. Yes mother nature at times tips things upside down and we get the highest temperature overnight and the lowest during the day etc but, if you have at least a max and min thermometer or better still an auto station that shows temperatures and time then its not a problem. Just enjoy recording the weather that is what its about.
here is my weather station, for local written forecasts or simply browsing further afield.
http://www.johnholmes-weather.co.uk/
see my blog for weather updates as I get time and also my plea for preventing getting skin cancer.
#15
reef
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Posted 18 October 2011 - 13:38
I use midnight-midnight. Its not the official way to do it, but Im at a loss why the 9am-9am system works as it does.
I believe the official way is to take readings at 9am and the maximum temperature goes to the previous day and the minimum to the current. As Im using an AWS this would be extremely difficult to do, not to mention Id have to go back through 30 years of records! You also get anomolies where it could be below freezing all of one day but rise to 5C by 9am which complicates matters.
I did run a trial for a month comparing the midnight-midnight and 9am-9am systems and found very little difference in mean temperatures.
I believe the official way is to take readings at 9am and the maximum temperature goes to the previous day and the minimum to the current. As Im using an AWS this would be extremely difficult to do, not to mention Id have to go back through 30 years of records! You also get anomolies where it could be below freezing all of one day but rise to 5C by 9am which complicates matters.
I did run a trial for a month comparing the midnight-midnight and 9am-9am systems and found very little difference in mean temperatures.
The Last 6 months (compared to 1981-2010 averages):
December 2011: 5.9°C (+1.1°C)
January 2012: 5.4°C (+0.9°C)
February 2012: 4.7°C (0.0°C)
March 2012: 8.4°C (+1.8°C)
April 2012: 7.6°C (-0.8°C)
May 2012: 9.4°C (-1.9°C) to the 20th.
My Weather Station on Weatherunderground
'Views and opinions expressed in this or any other of my posts are my own'
December 2011: 5.9°C (+1.1°C)
January 2012: 5.4°C (+0.9°C)
February 2012: 4.7°C (0.0°C)
March 2012: 8.4°C (+1.8°C)
April 2012: 7.6°C (-0.8°C)
May 2012: 9.4°C (-1.9°C) to the 20th.
My Weather Station on Weatherunderground
'Views and opinions expressed in this or any other of my posts are my own'
#16
Richie V
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Posted 18 October 2011 - 13:49
All my readings are Midnight to Midnight.
www.barnsleyweather.com
Barnsleyweather currently under re-construction (badly out of date)
"Pippin, It's time to fly"
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#17
johnholmes
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Posted 18 October 2011 - 14:53
reef, on 18 October 2011 - 13:38 , said:
I use midnight-midnight. Its not the official way to do it, but Im at a loss why the 9am-9am system works as it does.
I believe the official way is to take readings at 9am and the maximum temperature goes to the previous day and the minimum to the current. As Im using an AWS this would be extremely difficult to do, not to mention Id have to go back through 30 years of records! You also get anomolies where it could be below freezing all of one day but rise to 5C by 9am which complicates matters.
I did run a trial for a month comparing the midnight-midnight and 9am-9am systems and found very little difference in mean temperatures.
I believe the official way is to take readings at 9am and the maximum temperature goes to the previous day and the minimum to the current. As Im using an AWS this would be extremely difficult to do, not to mention Id have to go back through 30 years of records! You also get anomolies where it could be below freezing all of one day but rise to 5C by 9am which complicates matters.
I did run a trial for a month comparing the midnight-midnight and 9am-9am systems and found very little difference in mean temperatures.
the old system, by that I suppose we mean the 09Z-09Z, was, I think, started as it was both suitable for part time observers with equipment up to Met O standards, and also because other than the occasional oddity as highlighted by Reef above, 90+% of readings at 0900z and 2100z will cover the correct max and min values. Further to make sure they were allocated to the correct 'day' then there is another data line for observers to fill in that covers the possible max and min occurring in the 'wrong' day, thus enabling the data to be correct. If that makes sense. Again TM will explain this far better than my old brain allows.
I'm not sure about all auto stations but certainly the Davis gives the time of every reading so it is possible where something looks a touch odd to check it out and adjust if its necessary for 09-09z data filing.
Edited by johnholmes, 18 October 2011 - 14:54 .
here is my weather station, for local written forecasts or simply browsing further afield.
http://www.johnholmes-weather.co.uk/
see my blog for weather updates as I get time and also my plea for preventing getting skin cancer.
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