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Nigel Marriott's Blog

An independent statistician using data to understand our world and to predict the future

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UK Weather Trends #34 – Annual Temperatures in 2024

January 7, 2025 By Nigel Marriott

The 2024 calendar year was the 4th hottest year on record in the UK.  Last year, I used a Control Chart to conclude “a step change upwards (in UK temperatures) has taken place but the pace of change is not yet clear“.  I am now less confident in my conclusion after updating with 2024 data, especially when I look at temperature trends based on the meteorological year of December to November instead.

[Read more…] about UK Weather Trends #34 – Annual Temperatures in 2024

Filed Under: Weather Tagged With: SPC, Statistical Process Control, t-test, temperature, trend analysis, Weather, weather trends

Pay Gap Trends #8A – Is a Smaller Pay Gap Good News?

January 3, 2025 By Nigel Marriott

The gender pay gap in the UK continues to narrow in 2024.  The good news is the pay gap is narrowing at a faster rate since 2017 when Gender Pay Gap Reporting (GPGR) for employers become mandatory.  The bad news is women are not progressing up the pay scale and are working longer hours, men today are worse off than their fathers were 20 years ago and the smaller pay gap is simply the by-product of wage compression induced by above inflation rises in the minimum wage.  This is a sobering picture which tells me on balance, a smaller pay gap is not good news.

This article is part A of a 2-part blog.  Part B will be published at a later date.

[Read more…] about Pay Gap Trends #8A – Is a Smaller Pay Gap Good News?

Filed Under: Diversity Tagged With: Gender Pay Gap, Median, Minimum Wage, ONS, Pay Differential, pay gap trends, trend analysis

UK Weather Trends #33 – Autumn 2024

December 4, 2024 By Nigel Marriott

The UK autumn in 2024 was essentially unremarkable and mostly consistent with the step change in autumnal climate seen 25 years ago.

[Read more…] about UK Weather Trends #33 – Autumn 2024

Filed Under: Archive Tagged With: multivariate data, Presenting data, principal components analysis, standardisation, trend analysis, Weather, weather trends, z-scores

UK Weather Trends #32 – Summer 2024

September 4, 2024 By Nigel Marriott

The 2024 meteorological summer in the UK was unremarkable on all weather variables.  In fact 2024 was so unremarkable that it is in fact the most “normal” summer of the last 114 years when I compare the data to the last 50 years which I regard as “living memory”.

[Read more…] about UK Weather Trends #32 – Summer 2024

Filed Under: Archive Tagged With: multivariate data, Presenting data, principal components analysis, standardisation, trend analysis, Weather, weather trends, z-scores

UK Weather Trends #31 – Spring 2024

June 4, 2024 By Nigel Marriott

Spring 2024 in the UK was the hottest on record.  In some ways this is surprising given it was also the 10th dullest and 6th wettest spring on record which is inconsistent with trends over last 25 years and with the typical correlations seen in spring.  With any other dataset, I would ask for a check on the temperature data to see if it is correct.

[Read more…] about UK Weather Trends #31 – Spring 2024

Filed Under: Archive Tagged With: multivariate data, Presenting data, principal components analysis, standardisation, trend analysis, Weather, weather trends, z-scores

UK Weather Trends #30 – Winter 2024

March 3, 2024 By Nigel Marriott

Winter 2024 in the UK was the 5th sunniest & 8th wettest on record.  A year ago I postulated UK winters were entering a new era of being warm, wet & sunny.  I am now certain this is the case and my favoured hypothesis is that our winters are following a steady trend which began in the early 1980s.

[Read more…] about UK Weather Trends #30 – Winter 2024

Filed Under: Archive Tagged With: multivariate data, Presenting data, principal components analysis, standardisation, trend analysis, Weather, weather trends, z-scores

UK Weather Trends #29 – Annual Temperatures in 2023

January 4, 2024 By Nigel Marriott

The 2023 calendar year was the 2nd hottest year on record in the UK just behind the hottest year ever in 2022.  Last year, I showed how a technique known as a Control Chart could be used to decide if the UK is now in a new warming trend and after adding 2023, my answer is now “a step change upwards has taken place but the pace of change is not yet clear“.

[Read more…] about UK Weather Trends #29 – Annual Temperatures in 2023

Filed Under: Weather Tagged With: SPC, Statistical Process Control, t-test, temperature, trend analysis, Weather, weather trends

Pay Gap Trends #7 – UK Ethnicity Pay Gap 2012 to 2022

January 3, 2024 By Nigel Marriott

In November 2023, the Office of National Statistics (ONS) resumed publishing estimates of the UK Ethnicity Pay Gap after a 3 year hiatus for the Covid19 pandemic.  I have organised this data into a user-friendly (hopefully!) Microsoft Excel spreadsheet which allows you to see how the median hourly pay has changed between 2012 & 2022 for a variety of ethnicities & other categories.  This article explains how you can use this spreadsheet and why you must look at ethnicity pay gap data in a different way than you would for gender pay gap data.

[Read more…] about Pay Gap Trends #7 – UK Ethnicity Pay Gap 2012 to 2022

Filed Under: Diversity, Forecasting Tagged With: Annual Population Survey, Confidence Intervals, Ethnicity, Ethnicity Pay Gap, intersectional, Median, moving average, ONS, pay gap trends, trend analysis

UK Weather Trends #28 – Autumn 2023

December 4, 2023 By Nigel Marriott

The UK autumn in 2023 was the 6th warmest on record and consistent with the step change in autumnal climate seen 25 years ago.

[Read more…] about UK Weather Trends #28 – Autumn 2023

Filed Under: Archive Tagged With: multivariate data, Presenting data, principal components analysis, standardisation, trend analysis, Weather, weather trends, z-scores

Voice Referendum #2 – My Forecast Reviewed

November 5, 2023 By Nigel Marriott

Australians rejected the proposed constitutional amendment known as The Voice in a referendum on 14th October 2023.  NO won the national vote by 20.1 percentage points and the state count 6-0 but the more important question is was my forecast right?

[Read more…] about Voice Referendum #2 – My Forecast Reviewed

Filed Under: Elections, Forecasting Tagged With: Australia, Brexit, Election forecasting, Forecasting model, Parliament, Politics, Referendum, trend analysis, Trend extrapolation, Voice

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UK Weather Trends #42 – Summer 2026

The 2026 meteorological summer in the UK was the warmest on record, surpassing the record set last … [Read More...] about UK Weather Trends #42 – Summer 2026

UK Weather Tracker #115 – August 2026

The weather in the UK in August was the 6th warmest and 10th sunniest on record but with normal … [Read More...] about UK Weather Tracker #115 – August 2026

UK Weather Tracker #114 – July 2026

The sunniest July on record was also the 2nd warmest and 2nd driest on record for the UK.  I would … [Read More...] about UK Weather Tracker #114 – July 2026

UK Weather Tracker #113 – June 2026

June 2026 was the 2nd warmest June on record across the UK.  Unlike last month when I said I took … [Read More...] about UK Weather Tracker #113 – June 2026

Pay Gap Data #9 – Where can I find gender pay gap data for 2025?

The government requires nearly all employers with a headcount of 250 or more on their snapshot date … [Read More...] about Pay Gap Data #9 – Where can I find gender pay gap data for 2025?

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