NCEI United Kingdom Monthly Record Count Archive

Made August 2022

The purpose of this post is merely to catalogue counts of monthly record highs and lows coming into the National Center for Environmental Information’s site and all related charts and graphs produced in my Excel files for United Kingdom data sets. Monthly records are those set for the entire period of one month. For example, the highest temperature during any month of March at Atlanta Hartsville-Jackson Airport was 89F set on 3/23/1995. I am in the process of constantly updating this data, verifying the 2009 Meehl et. all Surface Records Study published in Geophysical Science that I initiated from 2000. Each individual count could be a tied surface record or one broken by several degrees Fahrenheit.

Here is the link to the NCEI site that I glean data from:

https://www.ncdc.noaa.gov/cdo-web/datatools/records

More from NCEI: 

“The daily records summarized here are compiled from a subset of stations in the Global Historical Climatological Network. A station is defined as the complete daily weather records at a particular location, having a unique identifier in the GHCN-Daily dataset. 

For a station to be considered for any parameter, it must have a minimum of 30 years of data with more than 182 days complete each year. This is effectively a “30-year record of service” requirement, but allows for inclusion of some stations which routinely shut down during certain seasons. Small station moves, such as a move from one property to an adjacent property, may occur within a station history. However, larger moves, such as a station moving from downtown to the city airport, generally result in the commissioning of a new station identifier. This tool treats each of these histories as a different station. In this way, it does not “thread” the separate histories into one record for a city. 

This tool provides simplistic counts of records to provide insight into recent climate behavior but is not a definitive way to identify trends in the number of records set over time. This is particularly true outside the United States, where the number of records may be strongly influenced by station density from country to country and from year to year. These data are raw and have not been assessed for the effects of changing station instrumentation and time of observation.”

An updated 2016 study from Dr. Jerry Meehl indicates that the daily ratio from year to year will average around 15 to 1 by 2100:

https://www.usatoday.com/story/weather/2016/11/21/us-record-high-temperatures-overwhelm-record-lows/94234824

Per one of the authors of both the 2009 and 2016 studies, Claudia Tebaldi said “This climate is on a trajectory that goes somewhere we’ve never been. And records are a very easy measure of that.”

All of the data listed below is part of this one chart. The ratio of monthly record high maxes to low minimums for the 2010s is higher so far than any decade since the 1910s:

Here are the current United Kingdom monthly record high max/low min counts per decade (including ties):

Blue colors represent cold months and red warm. Those months with counts close to a 1 to 1 ratio of highs to lows are colored black. I have opted not to catalogue data prior to 1900 since record counts decrease substantially prior to the decade of the 1900s. Please drop me a note if you have a good source for monthly and yearly rankings for the U.K. Time stamps for when I last updated counts are located in the upper left-hand corner of each chart. Also, drop me a note if you see an error or if you have suggestions for improvements:

The 2010s:

The 2000s:

The 1990s:

The 1980s:

The 1970s:

The 1960s:

The 1950s:

The 1940s:

The 1930s:

The 1920s:

The 1910s:

The 1900s:

All of the data listed below is part of this one chart. The British ratio of monthly record high minimums to low maximums for the 2000s is higher, so far, than any other decade since the 1900s:

The 2020s:

Blue colors represent cold months and red warm. Those months with counts close to a 1 to 1 ratio of highs to lows are colored black. I have opted not to catalogue data prior to 1900 since record counts decrease substantially prior to the decade of the 1900s. I would like to add United Kingdom rankings for months and years. Please drop me a note if you have a good source for that data. Time stamps for when I last updated counts are located in the upper left-hand corner of each chart. Also, drop me a note if you see an error or if you have suggestions for improvements:

The 2010s:

The 2000s:

The 1990s:

The 1980s:

The 1970’s:

The 1960’s:

The 1950’s:

The 1940’s:

The 1930’s:

The 1920’s:

The 1910’s:

The 1900’s:

This is all of the NCEI United Kingdom monthly record count data going back to 1900.

Guy Walton…” The Climate Guy”

Leave a Reply

Your email address will not be published.