### Blue Mountains Weather Warnings on 1300 659 218

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**December Obs 2014 Summary:** Using the data from Mt Boyce AWS, December average temperatures were +0.7C above average for minimums and 1.2C above average for maximums, being 12.2C and 23.6C respectively. Rainfall for the month was 151.6mm which is well above the long term average of 85mm. The warmest day was 29.5C and the coolest morning was 7.2C on the 14th. The coolest maximum was 15.1C on the 27th.

**2-12-14, Tuesday:** Using the data from Mt Boyce, November average temperatures were +1.2C above average for minimums and 4.5C above average for maximums, being 10.9C and 24.4C respectively. The average maximum temperature for the month of 24.4C, was a record for this site, with twenty three years of records. Rainfall for the month was 35.2mm which is well below the long term average of 112.5mm. The warmest day was 35.5C on the 23rd which is a record November maximum at this site and the coolest morning was 2.4C on the 2nd. The coolest maximum was 15.3C on the 27th. Nationally, it was our warmest spring ever recorded after only setting the record for the warmest spring ever, last year...

**3-11-14, Monday:** Using the shorter term data from Mt Boyce, as Katoomba missed too many reporting days, October average temperatures were +1.2C above average for minimums and 2.8C above average for maximums, being 8.7C and 20.4C respectively. Rainfall for the month was 62.6mm which is close to the long term average of 68.6mm. The warmest day was 28.4C on the 25th and the coolest morning was -0.6C on the 15th with about 6cm to 8cm of snow on the ground. The coolest maximum was 9C on the 14th.

**9-10-14, Thursday:** Using the longer term data from Katoomba, September average temperatures were +0.6C above average for minimums and 1.1C above average for maximums, being 6C and 15.7C respectively. Rainfall for the month was 44.4mm which is significantly below the long term average of 72.1mm. The warmest day was 25.1C on the 30th and the coolest morning was 2C on the 19th. The coolest maximum was 8.4C on the 6th.

**4-9-14, Thursday:** Using the longer term data from Katoomba, August average temperatures were +0.2C above average for minimums and right on average for maximums, being 3.5C and 11.4C respectively. Rainfall for the month was 204.2mm which is way above the long term average of 77.3mm. The warmest day was 16.4C on the 31st and the coolest morning was -1.2C on the 2nd. The coolest maximum was 5.4C on the 12th. Mt Boyce AWS (2km north of Blakcheath) average temperatures for August were 2.8C for minimums and 10.8C for maximums, which is -0.2c and -0.5C below average, respectively. Rainfall for Mt Boyce AWS was 169.6mm, well above the average of 52.5mm. Coldest maximum at Mt Boyce was 4.9C on the 12th and coldest morning was -2.4C on the 2nd. Warmest day was 15.5C on the 31st.

**6-8-14, Wednesday:** Using the longer term data from Katoomba, July average temps were +0.2C above average for minimums and +2C above average for maximums, being 2.8C and 11.6C respectively but the average minimum includes an anomolous -7C minimum on the 6th that has been taken out of the official recordings. Rainfall for the month was 14mm which is way below the long term average of 83mm. The warmest day was 16.7C on the 3rd and the coolest morning was -2.2C on the 12th. The coolest maximum was 5.6C on the 18th. I'm concerned that perhaps a number of these readings have been taken incorrectly as some of the readings seem wrong on certain days, compared to Mt Boyce AWS, near Blackeath. For example, the coldest day on the 18th was 2.7C milder than the same day in Blackheath and the minimum on the 12th of -2.2C was 3C colder than Blackheath. I have spoken to the BoM about this and they are looking into it.

Mt Boyce AWS July observations, with a much shorter history of around twenty years (but in recent years, perhaps more reliable than the Katoomba obs station) had 2.5C for average monthly minimums and 10C for average monthly maximums which was -0.2C and +0.5C above average, respectively. Coldest morning was -1.4C on the 8th, 13th and 18th and the coldest day was 2.9C on the 18th. Bear in mind that in certain frost hollows in Blackheath (Frog Hollow, the pool area etc) the minimums on those coldest, calm days, could have been 2C to 3C colder as cold air drains into the lowest areas during radiative cooling. Mt Boyce's warmest day was 15.3C on the 3rd. Rainfall for July was 11.6mm, well below the average of 44.2mm.

**23-7-14, Wednesday:** Sorry for the delay in getting the June observations up, this is a community site run in my spare time. Using the longer term data from Katoomba, June average temps were +0.3C above average for minimums and +1.2C above average for maximums, being 4.2C and 11.6C respectively. Rainfall for the month was 66mm which is way below the long term average of 118.4mm. The warmest day was 15.6C on the 4th and the coolest morning was -3C on the 30th. The coolest maximum was 5C on the 29th. I'm quite concerned that a number of these readings have been taken incorrectly as some of the minimums seem way too cold on certain days, compared to Mt Boyce AWS, near Blackeath.

Mt Boyce AWS June observations, with a much shorter history of around twenty years (but in recent years, perhaps more reliable than the Katoomba obs station) had 4.3C for minimums and 10.4C for maximums which was +0.3C and +0.2C above average, respectively. Coldest morning was 0.5C on the 24th and coldest day was 3.5C on the 29th. Warmest day was 14.4C on the 4th. Rainfall for June was 38.6mm, well below the average of 81.3mm.

**11-6-14, Wednesday:** Using the longer term data from Katoomba, May average temps were +1.4C above average for minimums and +2.3C above average for maximums, being 7.6C and 15.7C respectively. Rainfall for the month was 7.8mm which was way below the long term average of 120.2mm. The warmest day was 20.6C on the 26th and the coolest morning was 0.1C on the 4th. The coolest maximum was 7.1C on the 3rd.

Mt Boyce with a much shorter historical record was 6.8C for average minimums and 14.5C for average maximums for the month, which is +0.6C and +0.9C above the average, respectively. The coolest morning at Mt Boyce AWS was 1.1C on the 5th and the warmest day was on the 26th at 19.5C. Rainfall for Mt Boyce for April was 5.2mm, well below the average of 63.8mm. This was the driest ever May in eighteen years of record at this station. For details on the incredibly warm autumn in many parts of Australia, go to this **link.**

**5-5-14, Monday:** Using the longer term data from Katoomba, April average temps were +1.6C above average for minimums and +1.3C above average for maximums, being 10.4C and 18.4C respectively. Rainfall for the month was 94mm which was a little below the long term average of 120.9mm. The warmest day was 25C on the 2nd and 3rd and the coolest morning was 5.2C on the 21st. The coolest maximum was 13.2C on the 27th. Mt Boyce with a much shorter historical record was 9.6C for average minimums and 17.7C for average maximums for the month, which is +0.9C and +0.5C above the average, respectively. The coolest morning at Mt Boyce AWS was 4.1C on the 21st and the warmest day was on the 3rd at 23.9C. Rainfall for Mt Boyce for April was 94.8mm, well above the average of 60.8mm.

**14-4-14, Monday:** Using the longer term data from Katoomba, March average temps were 1.1C above average for minimums and +0.5C above average for maximums, being 12.6C and 20.8C respectively. Rainfall for the month was 185.6mm which was a little above the long term average of 164.8mm. The warmest day was 24.8 on the 22nd and the coolest morning was 8.4C on the 17th. The coolest maximum was 14.3C on the 1st. Mt Boyce was 12C for average minimums and 20.6C for average maximums for the month which is +0.6C and +0.1C above the average, respectively. The coolest morning at Mt Boyce AWS was 7C on the 17th and the warmest day was on the 10th at 24.5C. Rainfall for Mt Boyce for March was 186.4mm, well above the average of 110.5mm.

**3-3-14, Monday:** Using the longer term data from Katoomba, February average temps were 0.3C above average for minimums and +0.4C above average for maximums, being 13.2C and 22.7C respectively. Rainfall for the month was 112mm which is well below the long term average of 175.6mm. The warmest day was 31.4C on the 9th and the coolest morning was 8.2C on the 21st. The coolest maximum was 14.4C on the 28th. Mt Boyce was 12.7C for average minimums and 23.3C for average maximums for the month which is -0.6C below and +0.5C above the average, respectively. Rainfall for Mt Boyce for February was 82mm, well below the average of 139mm. There was again, a distinct lack of storms this month, with just a few rumbles here and there. Thankfully March has started off with some good rainfall with 40.2mm from the Mt Boyce AWS, thus far.

**17-2-14, Monday:** This rain event that started on the 14th of February and finished on the 17th of February has brought some very welcome rain across our region. Friday commenced with a broad low that gradually weakened by Saturday, which then saw a broad trough take over as the main rain producer. The event total at the official Mt Boyce AWS was 32mm. 47.8mm was recorded at the official Katoomba gauge for the same period. Event totals for other areas were Bathurst Airport 33mm, Orange 54.4mm, Orange Airport 49.8mm, Lithgow 29.4mm, Oberon 53.7mm, Wellington 14.6mm, Springwood 42.4mm. Mittagong (private station) 25.6mm, Porters Retreat (private station) 72mm. Some very handy results indeed. More charts and information can be found via this Australian Weather News **link.**

**9-2-14, Sunday:** This prolonged drought has got many people scratching their heads as the usual indicators generally suggest we shouldn't be in such a strong drought. A good article by The Land, see more **here.**

**3-2-14, Monday:** Using the longer term data from Katoomba, January average temps were 0.6C above average for minimums and +1.5C above average for maximums, being 13.6C and 24.9C respectively. Rainfall for the month was 70.2mm which is well below the long term average of 158.9mm. The warmest day was 34.4C on the 18th and the coolest morning was 9.8C on the 26th. The coolest maximum was 13.1C on the 8th. Mt Boyce was 13.1C for average minimums and 25.4C for average maximums for the month which is -0.2C below and +1.4C above the average, respectively. Rainfall for Mt Boyce for January was 57.2mm, well below the average of 124.2mm. There has been a distinct lack of storms this summer, following on from the distinct lack of fronts in winter and spring, it has been a dry period indeed. Not much weather of note to report, except for the extended heat.

**13-1-14, Monday:** Using the longer term data from Katoomba, December average temps were 0.8C above average for minimums and +2.3C above average for maximums, being 12.4C and 24.5C respectively. Rainfall for the month was 53mm which is well below the long term average of 122.6mm. The warmest day was 33.9C on the 20th and the coolest morning was 3.8C on the 6th, a very cool morning for this time of year but not a record. The coolest maximum was 15.2C on the 25th.