The year 2019 ended with a 24-hour corrected mean temperature of 49.2F, which was 1.6F warmer than the 120-year (1891-2010) long-term mean and 0.3F above the 30-year (1981-2010) normal. The annual average maximum temperature of 58.0F was 1.1F warmer than the long-term mean, while the annual average minimum temperature of 41.0F was 1.2F warmer than […]
Blue Hill Observatory December 2019 Summary: After a very cold start, December was generally mild with much more precipitation and more snowfall than average. The 24-hour adjusted mean temperature for the month of 32.3 deg F was 2.5 degrees warmer than the 120-year average for December and 0.7 degrees warmer than the 1981-2010 30-year average. […]
Blue Hill Observatory November 2019 Summary: November was very cool with much less rainfall than average. The 24-hour adjusted mean temperature for the month of 38.0 deg F was 4.1 degrees cooler than the 120-year average for November and 2.6 degrees cooler than the 1981-2010 30-year average. The month was the coldest November since 1996. […]
Blue Hill Observatory October 2019 Summary: October was generally warm with much more rainfall and more clouds than average. The 24-hour adjusted mean temperature for the month of 53.3 deg F was 2.2 degrees warmer than the 120-year average for October and 1.9 degrees warmer than the 1981-2010 30-year average. The average maximum temperature of […]
Blue Hill Observatory September 2019 Summary: September was generally warm and sunny with much less rainfall than average. The 24-hour adjusted mean temperature for the month of 63.4 deg F was 2.2 degrees warmer than the 120-year average for September and 1.3 degrees warmer than the 1981-2010 30-year average. The average maximum temperature of 73.6 […]
Blue Hill Observatory August 2019 Summary: August was generally warm and sunny with less rainfall than average. The 24-hour adjusted mean temperature for the month of 70.5 deg F was 2.4 degrees warmer than the 120-year average for August and 1.1 degrees warmer than the 1981-2010 30-year average. The average maximum temperature of 80.4 deg […]
Blue Hill Observatory July 2019 Summary: July was generally very warm and wetter than average. The 24-hour adjusted mean temperature for the month of 74.5 deg F was 4.8 degrees warmer than the 120-year average for July and 3.7 degrees warmer than the 1981-2010 30-year average. The month was the third warmest July on record, […]
Blue Hill Observatory June 2019 Summary: June was generally close to average for temperature, rainfall and sunshine. The 24-hour adjusted mean temperature for the month of 66.0 deg F was 1.9 degrees warmer than the 120-year average for June and 0.7 degrees warmer than the 1981-2010 30-year average. The average maximum temperature of 75.1 deg […]
Blue Hill Observatory May 2019 Summary: May was generally cooler and cloudier than average, with slightly more rainfall than expected. The 24-hour adjusted mean temperature for the month of 54.4 deg F was 1.8 degrees cooler than the 120-year average for May and 0.9 degrees cooler than the 1981-2010 30-year average. The average maximum temperature […]
Blue Hill Observatory April 2019 Summary: April was warmer than average, though it ended cool, with much above average rainfall and below average sunshine. The 24-hour adjusted mean temperature for the month of 47.3 deg F was 2.6 degrees warmer than the 120-year average for April and 1.0 degrees warmer than the 1981-2010 30-year average. […]
Blue Hill Observatory March 2019 Summary: March temperature was near average, and the month brought more snow than average despite being drier and sunnier than average. The 24-hour adjusted mean temperature for the month of 34.7 deg F was 0.3 degrees warmer than the 120-year average for March and slightly cooler than the 1981-2010 30-year […]
Blue Hill Observatory Winter 2018-2019 Summary: The winter (December-February) season was generally warm with a few cold periods, ample sunshine, average precipitation and very little snow. The 24-hour mean temperature for the winter of 29.7 deg F was 2.4 degrees warmer than the 120-year winter average and 0.7 degrees warmer than the 1981-2010 30-year average. […]
Blue Hill Observatory February 2019 Summary: February was warmer and slightly drier than average with below average snowfall. The 24-hour adjusted mean temperature for the month of 29.2 deg F was 2.8 degrees warmer than the 120-year average for February and just a tenth degree warmer than the 1981-2010 30-year average due to the strong […]
Blue Hill Observatory January 2019 Summary: January was slightly warmer and wetter than average with very little snowfall and abundant sunshine. The 24-hour adjusted mean temperature for the month of 26.7 deg F was 1.0 degrees warmer than the 120-year average for January and about a half degree warmer than the 1981-2010 30-year average. The average […]
The year 2018 ended with a 24-hour corrected mean temperature of 50.0F, which was 2.4F warmer than the 120-year (1891-2010) long-term mean and 1.1F above the 30-year (1981-2010) normal. The annual average maximum temperature of 58.5F was 1.6F warmer than the long-term mean, while the annual average minimum temperature of 42.2F was 2.4F warmer than […]
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