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NB: If you want even more details, please contact The Weather Company for personalised weather forecasts on 190 222 9569. Be aware that this service is charged by the minute. I do occasionally provide personal forecasts for community groups via email.
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December 2017 Obs Summary: December was moderately wet across the Blue Mountains with 70mm for Blackheath, with the average being 89.3mm. The average maximum and minimum temperatures were 24.7C (2.1C above) and 13.8C (2.2C above) respectively. So by longer term standards going back to the 1950s, it was a month that was was notably above average for temperatures.
November 2017 Obs Summary: November was quite wet across the Blue Mountains but sadly the Mount Boyce AWS was not operational for the whole month, with significant gaps in the records. The Katoomba BMCC site recorded 66mm for the month and 88.6mm was recorded by the official BoM station at Katoomba. I would estimate that Blackheath recorded well over 100mm but we will never know, officially. The average maximum and minimum temperatures were 20.5C (0.2C above) and 8.7C (0.9C below) respectively. So by longer term standards going back to the 1950s, it was a month that was was around average for temperatures.
October 2017 Obs Summary: October was quite wet across the Blue Mountains, so it was lovely to see good rain in October with 109.6mm, well above the average of 65.3mm. Our wettest day was on the 23rd with 30.2mm. Our coldest maximum was 10.6C on the 14th and our coldest minimum was 2.5C on the 31st. Our warmest day was 25.8C on the 11th. The average maximum and minimum temperatures were 19.8C (2C above) and 8.6C (1C above) respectively. So by longer term standards going back to the 1950s, it was a month that was notably warmer than average and wetter, too.
September 2017 Obs Summary: September was extremely dry across the Blue Mountains with rainfall of only 0.4mm, which is way below the average of 58.2mm. Our wettest day was on the 14th and 29th with 0.2mm on each of those days. Our coldest maximum was 6.1C on the 14th and our coldest minimum was -0.1C on the 9th. Our warmest day was 15.9C on the 23rd. The average maximum and minimum temperatures were 16.1C (1.5C above) and 5.6C (0.2C above) respectively. So by longer term standards going back to the 1950s, it was a month that was warmer than average and extremely dry.
August 2017 Obs Summary: August was fairly dry across the Blue Mountains with rainfall of only 30.4mm, which is just over half the average of 59.7mm. Our wettest day was on the 4th with 12.8mm. Our coldest maximum was 4.7C on the 4th and our coldest minimum was -2.2C on the 28th. Our warmest day was 17.7C on the 15th. The average maximum and minimum temperatures were 11.4C (0.1C above) and 2.3C (0.7C below) respectively. So by longer term standards going back to the 1950s, it was a month that was warmer around average for temperatures and quite dry.
July 2017 Obs Summary: July was VERY dry across the Blue Mountains with rainfall of only 2.6mm. Our July average is 45.7mm. Our wettest day was on the 28th with 0.8mm. Our coldest maximum was 6C on the 20th and our coldest minimum was -1.7C on the 21st. Our warmest day was 17.4C on the 30th, which was a new maximum temperature record. The average maximum and minimum temperatures were 10.6C (1.1C above) and 2.2C (0.4C below) respectively. So by longer term standards going back to the 1950s, it was a month that was warmer than the average for temperatures and very dry.
June 2017 Obs Summary: June was reasonably close to the short term average across the Blue Mountains with rainfall of 68.4mm. Our June average is 85.4mm. Our wettest day was on the 10th with 31.2mm. Our coldest maximum was 7.3C on the 6th and our coldest minimum was 0.3C on the 30th. Our warmest day was 14.7C on the 12th. The average maximum and minimum temperatures were 10.2C (+0.7C below) and 4C (Right on Avg) respectively. So by longer term standards going back to the 1950s, it was a month that was a little warmer than the average for temperatures and a little dry.
May 2017 Obs Summary: May was close to the short term average across the Blue Mountains and also quite dry with 26mm. Our May average is 60.8mm. Our wettest day was on the 20th with 18.4mm. Our coldest maximum was 7.4C on the 31st and our coldest minimum was -1C on the 30th. Our warmest day was 16.9C on the 6th. The average maximum and minimum temperatures were 13.9C (+0.3C above) and 5.7C (-0.5C below) respectively. So by longer term standards going back to the 1950s, it was a month that was a little warmer than the average for temperatures and quite dry.
April 2017 Obs Summary: April was slightly cooler than the short term average across the Blue Mountains and also fairly dry with 35.8mm, which was in stark contrast to the 417.6mm in March. Our April average is 62.6mm. Our wettest day was on the 5th with 11.8mm. Our coldest maximum was 10.5C on the 10th and our coldest minimum was 2.4C on the 10th. Our warmest day was 19.8C on the 1st. The average maximum and minimum temperatures were 16.8C (+0.4C below) and 7.5C (+1.2C below) respectively. So by longer term standards it was a month that was around average for temperatures and quite dry.
March 2017 Obs Summary: March was somewhat milder than the short term average across the Blue Mountains and also very wet with 417.6mm, from the official Mt Boyce gauge. Our March average is 114.5mm. Our wettest day was on the 15th with 89.2mm. Our coldest maximum was 14.4C on the 17th and our coldest minimum was 6.2C on the 31st. Our warmest day was 27.9C on the 12th. The average maximum and minimum temperatures were 20.6C (+0.1C above) and 13C (+1.6C above) respectively. So by longer term standards it was a month that was a little milder than average for temperatures and VERY wet.
February 2017 Obs Summary: February was notably hotter than the short term average across the Blue Mountains and also reasonably wet with 114.4mm, from the official Mt Boyce gauge. Our February average is 136mm. Our wettest day was on the 8th with 21.8mm. Our coldest maximum was 15.5C on the 25th and our coldest minimum was 7C on the 20th. Our warmest day was 37.2C on the 11th which broke the record set the previous day!. A temperature of 36.3C was recorded on the 10th, which broke the previous record of 36.2C set in 2009. Records date back to 1991 at this site. Katoomba also set a record of 37.7C on the 11th, with fifty one years of record there. Numerous sites across the central tablelands broke records on the 11th. The average maximum and minimum temperatures were 26.6C (+3.8C above) and 15C (+1.7C above) respectively. So by longer term standards it was a month that was notably hotter than average for temperatures and a little dry, too.
January 2017 Obs Summary: January was notably warmer than the short term average across the Blue Mountains and also reasonably wet with 81.6mm, from the official Mt Boyce gauge. Our January average is 120.6mm. Our wettest day was on the 10th with 27.2mm. Our coldest maximum was 17.9C on the 25th and our coldest minimum was 7.5C on the 9th. Our warmest day was 35.2C on the 18th. The average maximum and minimum temperatures were 27.2C (+2.1C above) and 15.4C (+2.1C above) respectively. So by longer term standards it was a month that was notably warmer than average for temperatures and a little dry.