December 2023 brought record warmth to various regions worldwide, with the United States, Canada, and Australia experiencing exceptionally high temperatures. The U.S. saw its warmest December ever, with average temperatures over 3°F above normal and some areas in Minnesota reaching 15°F above normal. In Canada, several cities, including Calgary, Regina, and Saskatoon, recorded their warmest December on record. Australia also reported above-average temperatures. The global trend was reflected in the JRA-55 dataset, which confirmed 2023 as the warmest year on record, surpassing the previous record set in 2016 by 0.14°C. The warm conditions extended to specific cities, such as New York City, which experienced its second warmest December since 1869. Additionally, December 2023 was one of the wettest on record in certain areas, with some locations experiencing their wettest December since at least 1895. The data reflects a significant warming trend, with 2023 marking the second warmest year on record in Washington, D.C., and the warmest December in the city's recorded history. The global temperature update for December 2023 confirmed it as the warmest measured by humans and satellites. The month also saw record daily temperatures in certain locations, such as Denver, which recorded its 16th warmest December since 1872. The warm conditions are indicative of a broader trend, as 2023 was the warmest year on record in the JRA-55 dataset, representing a rapid warming trend that has seen global temperatures rise around 1°C since 1970.
Its now official: 2023 was the warmest year on record in the JRA-55 dataset, at 1.43C above preindustrial levels. It beat the prior record set in 2016 by 0.14C, and continues a rapid warming trend thats seen global temperatures rise around 1C since 1970. https://t.co/7TuzCTCBUO
2023 data out from @bhobservatory. December was the 2nd warmest on record and 2023 was the 2nd warmest year on record. All of the 7 warmest years have come since 2010. As the climate warms this is the easiest way of showing how odds favor warmer times vs colder times. #wbz https://t.co/fS1ewSv70y
Global Temperature update for December 2023 and the calendar year: #1 warmest measured by humans and satellites. This is also the end of the road for JRA-55 to be replaced by the new and improved JRA-3Q reanalysis (3Q = three quarters of a century) https://t.co/UhP4pTtn76
JUST IN: Our outlook for January weather in DC and December recap * We're calling for near normal temps and near-to-above normal snow in Jan * Dec ranked 5th warmest and 4th wettest on record * 2023 was DC's 2nd warmest year on record Read more⬇️ https://t.co/PmEs8AaCda
Extremely mild December across Wisconsin: warmest on record in Milwaukee, Eau Claire, Wausau and Green Bay. Temperature anomalies were especially high in the north, where snow cover was absent. Probably will be a statewide Dec temperature record when data are finalized next week. https://t.co/RJnjsHOA1z
December ended with a record daily temperature (the mean average high and low each day) of 53.2 degrees. The existing record was 1980 with a 52.7 mean average. https://t.co/du8igzmF0h via @reviewjournal
Temperatures in the northern half of the Atlantic Ocean continued to set new records in November 2023. Data available from @NOAA ERSSTv5 (https://t.co/V8F2MhaASY). https://t.co/OFIn3maYw2
2023 ranks as 2nd warmest year on record at the Charleston Int'l Airport climate site. #chswx #scwx Full annual climate summaries available at https://t.co/1M0bXIQzCs https://t.co/T91e72h1WP
Check out the December 2023 monthly climate stats. Full summary here: https://t.co/1M0bXIQzCs #chswx #scwx #gawx #savwx https://t.co/2DJVsSR4oJ
2015 remains the all-time warmest December in NYC, but 2023 slides right in to the #2 slot with an average temperature of 44.6° F and a +6.8° F departure. The chart vs. average temperature shows the late month warm surge quite well, too. https://t.co/LUvSV0DG03
December 2023 is now certain to be the warmest December on record in the JRA-55 dataset, beating the prior record by over 0.2C. It will end just below September as the second highest anomaly of the year (with respect to an 1850-1900 baseline period). https://t.co/ujqDn7qkc6
The United States just experienced by far its warmest December ever recorded. All areas highlighted in red (virtually the entire US) experienced temperatures over 3°F above normal. Parts of Minnesota were 15°F above normal for the entire month. https://t.co/fOkUfcHv0k
‼️Historic December in #Canada! 🥵 ➡️ Warmest ever recorded [sometimes by a huge margin] in Calgary, Regina, Saskatoon, Kenora, Churchill, Resolute, Cambridge Bay, Alert, etc. ➡️ 2nd warmest in Vancouver (0.05°C from its warmest) & Toronto. ➡️ 3rd warmest in Montreal & Winnipeg. https://t.co/4S9EOwqwr6
December finished as Denver's 16th-warmest since 1872. Average monthly temp of 37.4° = 6.2° above the long-term average. #9wx #COwx
December 2023 was extremely warm in Canada. All reference stations were above average, with most of the country at least 3 degrees above. Warmest December on record for many, mostly in the Prairies and Nunavut. In Alert, NU, December was warmer than November. #wxtwitter https://t.co/wdMtDan9jl
December 2023 was forecast to be a warm, snowless month and it delivered. NYC finished with a temperature departure of +6.8° F and an average temperature of 44.2° F, the second warmest December since records began in 1869. On to January, where the winter fun could begin... https://t.co/y3kbCSEshp
December 2023 was one of the wettest we've ever seen from the standpoint of water (using Prism climate data). Areas in green had their wettest December since at least 1895. Areas in dark blue had a top 5 wettest December. A few spots in red had their driest December since 1895. https://t.co/yFEAhvpWPc
December 2023 was one of the wettest we've ever seen from the standpoint of water (using Prism climate data). Areas in green had their wettest December since at least 1895. Areas in dark blue has a top 5 wettest December. https://t.co/cnFp3HRWnS
2023 was the warmest year on record for areas in dark red using Prism Climate Group data. Locations in regular red shading had a top 5 warmest year. 🔥🔥 https://t.co/cyPE1rcFYE
December 2023 was the warmest December on record for the Contiguous U.S. by a wide margin using Prism Climate Group data. It was 0.67°F (0.37°C) warmer than December 2021. 🔥🔥🔥 https://t.co/nhRL9j0O4G
Here are preliminary climate data for December 2023 and information on temperature extremes and maximum monthly rainfall totals from @NWSGSP, @NWSColumbia, @NWSCharlestonSC @NWSWilmingtonNC, and @CoCoRaHS stations in the Palmetto State. #scwx https://t.co/rBlg82KvcZ
2023 looks to be the warmest year in BTV history and the first time we have reached an average annual temperature of 50°F. https://t.co/TQFCE7kGyI
Full spread of Australia's rainfall and temperature data is available now for both December and 2023. (Via @bom_au) https://t.co/vRyf3LzU5d
Snow fell on the Chicago area Sunday, capping off what could be the fourth warmest December in the city’s recorded history. https://t.co/7c3pRbuJwk