Smoke from Washington State fires drifted up to Chilliwack and beyond in early October 2020. (Jennifer Feinberg/ The Chilliwack Progress)

Smoke from Washington State fires drifted up to Chilliwack and beyond in early October 2020. (Jennifer Feinberg/ The Chilliwack Progress)

October weather was slightly warmer than usual in Chilliwack

Temperatures for the month peaked early with a balmy 24.5 C reached on October 2

October weather was a little warmer than usual in Chilliwack, with smoky skies returning briefly from climate fires down south.

“The dry, warm and sunny conditions of late September continued into the first week of October, as a strong upper level ridge of high pressure deflected the jet stream to northern British Columbia,” said Roger Pannett, volunteer weather observer for Environment Canada, in his monthly report for October 2020.

Temperatures for the month peaked at a balmy 24.5 C on October 2, which was more than six degrees above normal. It was the warmest October day since 2012.

Freezing levels rose to 14,500 feet, but skies were also hazy because of high-level smoke and particulate matter drifting into Canada from Washington State and California taking air quality from ‘good’ to ‘moderate’ in early October.

The AQ was much worse in September however.

The more typical fall weather conditions returned with a heavy rainfall of 56.9 mm on October 9 with a mild, moist south westerly air flow there were two overnight high temperature records observed:

• October 8 High Minimum 13.7 C (6.7 C above normal) 13.0C in 2015.
• October 9 High Minimum 13.5 C (6.8 C above normal) 13.0 C in 1979.

Fast-moving Pacific frontal systems produced periods of rain for a couple of weeks with falling freezing levels, high elevation mountain snowfalls.

On October 13, high winds gusting up to 74 km/hour produced widespread power outages.

With the passage of a low-pressure system, passing just off Vancouver Island and moving onto the Washington coast, modified arctic air advanced southward through the Interior. On October 23 a heavy snowfall closed the Coquihalla highway for several hours. In the wake of the low-pressure system a drying trend developed, for a few days, as modified arctic air with cold outflow winds occurred.

Three low temperature records were broken: –

October 24- Low max 6.5⁰C (6.3⁰C below normal) 6.7 C in 1934.

October 25 – Low max 5.5⁰C (7.4⁰C below normal) 6.1 C in 1975.

October 25 – Low mean 2.55⁰C (6.75⁰c below normal) 2.8 C in 1919.

READ MORE: AQ saw plume of smoke drifting up from down south

There were two frosts with temperatures dipping to -0.4 C, plus wind chill, on October 25. On average the first frost of the season occurs, in Chilliwack, on November 9. In 2020 there were 203 frost free days compared to the average 216 frost free days.

After some wet snow, during the early hours of October 26, weather conditions returned to normal with the month concluding with clear, sunny skies and mild temperatures.

With mean temperatures 0.67 C above normal it was the warmest October since 2015.

The City of Chilliwack year-to-date precipitation totals are 1,155.1 mm on 154 days compared to the 30-year average of 1,346.7 mm on 133 days.

READ MORE: AQ in the LM was the worst in September

Do you have something to add to this story, or something else we should report on? Email:

Like us on Facebook and follow us on Twitter.

Want to support local journalism during the pandemic? Make a donation here.

City of ChilliwackWeather

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

A map showing where the most number of cases were recorded from April 23 to 29. This map, revealing a breakdown of infections by neighborhood, was pulled from a data package leaked to the Vancouver Sun last week (and independently verified).
36 Abbotsford schools flagged for COVID-19 exposures in the last 2 weeks, shattering record

Clearbrook Elementary recorded an ‘exposure’ on all 11 school days

An injection kit is seen inside a Fraser Health supervised consumption site is pictured in Surrey, B.C., Tuesday, June 6, 2017. THE CANADIAN PRESS/Jonathan Hayward
Hope’s high rate of drug overdose noted in BC Coroners Service report

Up-to-date numbers not available yet for 2021, but Fraser Health deaths on the rise

Screenshot from security footage a young, thin cougar prowling on Oliver Crescent in Sardis on May 7, 2021. (Dustin Meyer photo)
VIDEO: Cougar sighting in residential Chilliwack neighbourhood prompts warning

Springtime cougar sightings likely due to cats following deer down to valley floor, says CO

<a href="Facebook users reported seeing a body on the side of the road this morning." target="_blank"></a>Facebook users reported seeing a body on the side of the road this morning. (File photo)
Man killed in fatal hit-and-run collision between Abbotsford and Chilliwack

Body reported at 6 a.m., police close North Parallel Road, single highway lane as they investigate

Westbound traffic is slow moving on Highway 1 following a crash that has police blocking one lane. Google Maps screenshot taken at 9:07 a.m.
TRAFFIC: Crash on North Parallel Road causes road closure, single westbound Highway 1 lane blocked

Abbotsford Police investigating, roads closed between McDermott and No. 3 Road

(The Canadian Press)
Trudeau won’t say whether Canada supports patent waiver for COVID-19 vaccines

‘Canada is at the table to help find a solution’

Edmonton Oilers’ Connor McDavid (97) celebrates his 100th point this season with Leon Draisaitl (29) against the Vancouver Canucks during second period NHL action in Edmonton on Saturday, May 8, 2021.THE CANADIAN PRESS/Jason Franson
Edmonton superstar McDavid hits 100-point mark as Oilers edge Canucks 4-3

NHL scoring leader needs just 53 games to reach century mark

Nuns of Mother Teresa’s Missionaries of Charity, carry some of her relics during a vigil of prayer in preparation for the canonization of Mother Teresa in the St. John in Latheran Basilica at the Vatican, Friday, Sept. 2, 2016. In which city did she do much of her charitable work? (AP Photo/Gregorio Borgia)
QUIZ: How much do you know about these motherhood issues?

In honour of Mother’s Day, take this 10-question quiz

Twenty-nine staff members at Sunrise Poultry Processors Ltd. in Newton have tested positive for the virus, according to an information bulletin from Fraser Health Saturday (May 8). The health authority issued a 10-day closure order, effective May 7. (Image: Google Maps)
29 staff test positive for COVID-19 at Surrey poultry processing plant

Meantime, outbreak over at Surrey Memorial Hospital

Cannabis bought in British Columbia (Ashley Wadhwani/Black Press Media)
Is it time to start thinking about greener ways to package cannabis?

Packaging suppliers are still figuring eco-friendly and affordable packaging options that fit the mandates of Cannabis Regulations

Canada’s chief public health officer is reminding Canadians even those who are fully vaccinated are not immune from transmitting the COVID-19. THE CANADIAN PRESS/Adrian Wyld
Canada’s top doctor warns full vaccination does not equal full protection from COVID-19

Post-inoculation, Theresa Tam says the risk of asymptomatic infection and transmission is far lower but not obsolete

The dash cam footage, taken May 7 at 8:18 a.m. belonged to the driver of a southbound vehicle that recently travelled out of the tunnel. (Reddit/Screen grab)
VIDEO: Dash cam captures dramatic rollover crash on Highway 99

Only one person sustained injuries from the collision, says B.C. Ambulance Services

Chevy stranded on a ledge above a rocky canyon at Mimi Falls near Logan Lake, April 28, 2021. (Photo credit: Margot Wikjord)
Police officer and fire chief team up in risky rescue of stranded dog near Logan Lake

Chevy, a rescue dog, needed rescuing again after getting stuck on a ledge above rocky canyon

Most Read