Daily Global Temperatures 1948-2023

I’ve spent much of the day adding a viewer to my DIYDIY Do It Yourself Global temperature application. The new viewer layers a line series of daily temperatures for each year from 1948 to 2023. The lines series are coloured grey apart from, 2023 in red, and 2016 in blue. I picked 2016 because that’s the warmest year in the series. I’ve also added a yellow band for the daily standard deviation and a black line for the long-term average. For much of this year 2023 has been trailing 2016, but in the first four days of July 2023 there’s been a very sharp spike in daily global temperatures, such that, and quite remarkably, the latest available global mean on the 4th of July was the highest in the entire 75 year series at 11.42°C. Not a lot of people know that.

I think it’s a great application, and the results from it are fascinating to see and I’m quite proud to have developed it. It’s a simple concept and can work on any Windows PC using NCEPNCEP The United States National Centers for Environmental Prediction (NCEP) delivers national and global weather, water, climate and space weather guidance, forecasts, warnings and analyses to its Partners and External User Communities. reanalysis data.

Global Temperatures, News, Software

Daily Global Temperatures 1948-2023 Read More »

5 July 2023 | Storm Poly

After bringing storm force winds overnight to the Netherlands here’s a loop of satellite images showing Storm Poly, as it’s now been called by DWD, exiting stage right. So NMI don’t name it even though it brought storm force winds and gusts of 80 knots but the DWD do? What a crazy system. It could only happen in Europe. It’s been reported that the next name on the DWD list is going to be Storm Roly.

Named Storms, Rain, Satellite, Wind

5 July 2023 | Storm Poly Read More »

June 2023 | Global temperatures

The rate of increase in the 365 day moving average in my DIYDIY Do It Yourself Global Temperature series we’ve seen so far in 2023, looks very similar to the one we saw in 2019-20, but thankfully not quite as steep as that of 2016. There’s plenty of time though for that to steepen of course, as the effects of the new El NinoEl Niño El Niño 'The Boy' is the warm phase of the El Niño–Southern Oscillation and is associated with a band of warm ocean water that develops in the central and east-central equatorial Pacific event kick in during the remainder of 2023.

The steep increase across the northern temperate zones seem to have steadied off in recent months, but temperatures across the tropics and southern temperate zone are starting to surge. Temperatures in the Arctic have steadied after falling, and in the Antarctic temperatures continue to fall back.

Global Temperatures

June 2023 | Global temperatures Read More »

June 2023 | Mean temperature anomalies

The SE-NW temperature thermal gradient across the UKUK The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland. & Ireland during June is picked up well in this chart, even in the coarse reanalysis gridded data that I download and use from NCEPNCEP The United States National Centers for Environmental Prediction (NCEP) delivers national and global weather, water, climate and space weather guidance, forecasts, warnings and analyses to its Partners and External User Communities.. Sea surface temperatures in the North Sea may well have been at record levels during the month, but they still managed to dissect this area of warm anomalies in two.

Global Temperatures

June 2023 | Mean temperature anomalies Read More »

June correlations

These two charts underline how warm June and sunny the June of 2023 was across the UKUK The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland.. It set new extremes in most regions, but not everywhere.

June, Precipitation, Sunshine, Temperature

June correlations Read More »

Fourth longest anticyclonic spell since 1871

The anticyclonic spell that lasted 25 days and began on the 15th of May 2023 and ended on the 8th of June, was fourth longest in the Objective LWTLWT Lamb Weather Types are often used in UK-based analyses, with individual weather patterns based on the eight primary cardinal directions (N, NE, E, SE, S, SW, W, NW) plus cyclonic (C), anticyclonic (A) and unclassified (U) types. series that began in 1871 (the total includes all hybrid ACAC Altocumulus clouds are generally associated with settled weather and will normally appear white or grey with shading. Height of base: 7,000 - 18,000 ft Shape: Bands or areas of individual cells Latin: altum - height; cumulus - heap Altocumulus clouds are small mid-level layers or patches of clouds, called cloudlets, which most commonly exist in the shape of rounded clumps. There are many varieties of altocumulus, however, meaning they can appear in a range of shapes. Altocumulus are made up of a mix of ice and water, giving them a slightly more ethereal appearance than the big and fluffy lower level cumulus. types). From the 28th of May the flow was generally easterly. Not a lot of people know that.

LWT

Fourth longest anticyclonic spell since 1871 Read More »

UK Precipitation | January 2000 – June 2023

The 12 month average of 94% of average for the last 12 months means we’re still not out of the woods yet in the UKUK The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland., after a hesitant recovery from last years dry spell.

Precipitation

UK Precipitation | January 2000 – June 2023 Read More »

June 2023 – Weather Summary

It’s official, June 2023 was the warmest June since temperatures recorded started in 1884. Rather surprisingly it only came in as the fourth sunniest. Anomalies show that the north of Scotland was both the sunniest and warmest region in the UKUK The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland. during June.

June, Precipitation, Sunshine, Temperature

June 2023 – Weather Summary Read More »

A real-time Summer Index

Fine weather over central & SE England identified by Summer Index

I’ve been toying with the idea of a Real-time summer index [SISI Summer Index] for many years. Of course the idea of a summer index is very subjective – everyone’s perfect summer day is different. I use a very simple algorithm of total cloud amount, present weather, relative humidity, surface visibility, mean wind speed and of course temperature to calculate it with. Results look promising. There’s no reason why the idea couldn’t be extended to use NWPNWP Numerical weather prediction uses mathematical models of the atmosphere and oceans to predict the weather based on current weather conditions. data for forecasting summer index for many days ahead. The values are using my preferences for an ideal temperature of 25°C. This is not ideal because what I would like to have used was anomalies. A fixed temperature also means the SI will oscillate through the day as things warm up, so it’s far from perfect. A perfect day to me really requires an okta of cumulus or cirrus cloud rather than complete blue skies. The perfect day also requires some wind, no more than five knots, perfect visibility and low humidities. I factor all of them into the algorithm, but thats still very much work in progress. The 25°C ideal temperature may be a little too high for me, but at that rules out SI levels much above 75 across the Mediterranean in the summer.

Software, Summer, Summer Index

A real-time Summer Index Read More »

Hourly temperature analysis

I’ve developed a single purpose application to analyse hourly temperatures for any station during a month. There’s more work to be done on it as it could be extended to look at other climate variables.

Notice the cold thread with the easterlies at the start of the month and the much warmer second half thread. Average temperatures sometimes hide the true story.

Compare those results with those from maritime climate of southern Ireland.

Software, Temperature

Hourly temperature analysis Read More »

May 2023: Mean pressure and anomalies

An unusually anticyclonic month across the UKUK The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland. and the most anticyclonic since 1996 I later discovered

Zoomed in retrospective for the whole of spring. As you can see May didn’t start on an anticyclonic note.

Anomalies, May, Pressure

May 2023: Mean pressure and anomalies Read More »

UKP: Latest regional 365 day totals

1 Jun 2022-31 May 2023 Regional UKPUKP UKP is a gridded datasets of UK regional precipitation. 365 day precipitation POAPOA Percentage Of Average

The dry last three weeks have already had a noticeable effect on the 365 day percentage of LTALTA Long Term Average. This is usually defined as a 30 year period by the WMO.. Northern Scotland is now the driest, instead of being one of the wettest regions.

Precipitation, UKMO, UKP

UKP: Latest regional 365 day totals Read More »

May 2023: Global Temperatures

I make May the 4th warmest May in my DIYDIY Do It Yourself series that started in 1948. Its tight at the top, but May 2016 is still fractionally higher.

Global mean temperatures have started to show a bit more consistency in their rate of warming over the last month or so.

The current global increases are due in a large part to a sharp rise in temperatures in the subtropical northern hemisphere and not from the tropics. Having said that, increases in the north seemed to have peaked in early May.

Global Temperatures, May

May 2023: Global Temperatures Read More »

Scroll to Top