Is the Blue Mountains Snow Day Gone Forever? Climate Shift Erases a Century of Winter Magic

New South Wales is currently in the middle of its 30th consecutive warmer-than-average winter, and a once-common feature of the season is rapidly vanishing.

Before the 21st century, snowfall was a regular occurrence along the Great Dividing Range, sometimes even extending across the state's west and coast. For the higher Blue Mountains, located just 30 kilometres from Western Sydney, a snow event or two was almost guaranteed every year, with some winters delivering more than 30 centimetres of snow from Katoomba to Mount Victoria.

A History of Heavy Blizzards

The state's largest recorded snowstorm in 1900 dumped nearly a metre of snow on the Blue Mountains, 70 centimetres on Bathurst, 55cm on Mudgee, and 23cm on Forbes. In 1910, another significant storm left snow piled so high in the mountains that it remained on a train arriving at Central Station.

Even in the late 20th century, colder winters still brought significant snowfalls. A few melting flakes were briefly observed over Sydney's northern suburbs in July of 1986, while in 1990, Oberon recorded snow on 13 consecutive days.

Residents Share Memories of Past Winters

Long-term residents of the mountains recall some of the biggest storms of the last century. Edward Thomas, whose family moved to Leura in 1955, vividly remembers an intense snowfall from the mid-1960s.

"Newly-engaged, I was visiting my fiancée in Katoomba. It was a Saturday, and we were having the usual roast for dinner. There was no wind, still and quiet," he said.

"I looked out the window to see my little Morris Mini Deluxe covered in snow. "

Thomas managed to make his way home despite the conditions. "It was really coming down, but I somehow managed to drive back to Leura with the car going sideways with spinning tyres up past the shops in Leura Mall."

"The next morning, we woke to a Christmas card scene. I decided to walk back to my fiancée's house in Katoomba, a kilometre and a half, with snow so deep it filled the gumboots. "

The deep snow brought local activity to a halt. "The next couple of nights we were snowed in completely. The grass, the stone picnic shelters, the trees were completely covered, more than a foot deep. It was truly a European scene. "

"The trains stopped running, and all roads were closed. Nobody could go to work," he added.

A Changing Climate

Despite these historic events, snow has rapidly declined over the past few decades, and it has now been four years since snow last settled on the Blue Mountains. While an occasional winter in the 20th century would pass without a significant fall, such as in 1973, the current lack of snow is the longest on record. The last snowfall in late August 2022 brought a dusting to Blackheath, but snow has not settled since.

A reduction in snow in marginally cold regions is one of the most noticeable signs of a warming climate, as a slight warming can easily turn a snowstorm into rain. The Blue Mountains are highly vulnerable due to their modest altitude, peaking at about 1,100 metres, since most of their snow occurs in temperatures either near or only just below freezing.

Over the past 50 years, the average winter temperature across NSW has warmed by around 1 degree Celsius, and by 1.5C since the early 20th century. This major climatic shift is sufficient to turn a snowy zero-degree day into wet, sleety conditions between 1 and 2C, preventing any accumulation. Additionally, the expansion of tropical wind circulations has pushed cold fronts further south, and east coast lows, which cause some of the heavier Blue Mountains snowstorms, are also declining. With winter weather systems retreating into the Southern Ocean, there is often not enough moisture and cloud to produce snow even when temperatures are freezing.

Official tracking of this decline is non-existent because the Bureau of Meteorology's weather stations do not record snow. Consequently, non-alpine snow data in Australia is mostly compiled from old newspapers and the efforts of local enthusiasts. Lindsay Pearce from Blackheath hosts a website featuring the most extensive archive of Blue Mountains snowfalls, dating back to the early 1800s, which highlights the unprecedented snow drought of recent years.

Fading Traditions and Quiet Winters

For local residents, personal experiences align closely with the data. Gary McGuigan, who has lived in the Katoomba area since 1969, has observed a steady change.

"We could count on a dump of snow … at least once during the winter season, which was my experience during the 1970s and 80s," he said.

"Over the years, I have certainly observed a steady decrease … it seems like nowadays it is more about every five years or so between a decent dump."

Stuart Driver was born in Blackheath and grew up there from the late 1960s to the 1980s. He noted that schools would close at least once a year due to the snow.

"It was not, if it would snow, but how often and how deep. Now it is well and truly if," he said.

Other locals share similar fond memories of snow days. "I grew up with snow on my birthday in July every year in the mountains … big snow back in the 60s, 70s, 80s," Julie Stockley Farrell recalled.

"My babies were snow babies … our Dad used to help my sister, and I build snowmen and use cardboard to go down the yard; it was awesome. "

Farrell added that recent years have been different: "Not so much in the last few years."

Linda Cooper, who spent over 30 years living in the Blue Mountains, also has fond memories of winter. "Our house was on Beatty Street, and we always saw snow in the winter growing up. Our street is steep, so lots of fun sliding down the hill," she said.

"I remember one year going into Franklin's [supermarket], and when I came out the snow had dumped down so much that my car slid all the way down Parke Street sideways. Ah, good times!"

West of the Blue Mountains, residents report the same trends. Michael Clark recalled, "In the 70s every year came heavy dumps, snowed-in for days on end. Just doesn't happen anymore," noting that prior to that, there are "images of steam locomotives that couldn't make it to Oberon Station due to snow drifts metres high."

While the lack of snow means cleared highways and no shovelling, many locals feel the winter season is incomplete without it. Richard Eggleston from Orange noted the shift for the local youth.

"Today's Orange youth sadly will never know the excitement of listening to the radio to confirm that school has been closed for the day," he said.