The 77.8 mm of rain that fell on Nov. 26 stemming from an ‘atmospheric river’ led to flooding of farmers fields in Chilliwack, and pushed the month’s rain totals above the 30-year average. (Paul Henderson/ The Progress)

‘Twas another wet and warm November in Chilliwack

Higher temperatures and rainfall totals than the 30-year average

It was another wet and warm November in Chilliwack.

Last month saw a total of 265.5 millimetres (mm) of rainfall over 22 days, including 76.2 mm on just one day, Nov. 26, a record volume of water falling from the sky for that day stemming from an “atmospheric river” associated with a strong jet stream, according to Environment Canada’s local volunteer weather observer Roger Pannett.

The total rainfall compares to a 30-year average of 228.8 mm, and is up from the wet November 2017 that saw 230 mm over 23 days.

• READ MORE: Sunny and dry weather expected for Chilliwack

The Nov. 26 dump of rain was the wettest November day in Chilliwack since 77.8 mm fell on Nov. 1, 2004, according to Pannett’s records.

But after the dry summer seen in Chilliwack, the year-to-date precipitation is down at 1,336.1 mm on 159 days compared to the 30-year average of 1,585.7 mm on 152 days.

As for temperatures, three records were broken last month. Two on Nov. 2 with a high minimum of 12.5 C (previous record 9.4 C in 1903) and a high mean at 15.35 C (previous record of 13.9 C in 1970).

Nov. 14’s high maximum temperature of 15.5 C topped the previous record of 15 C in 1881.

Overall the month’s average temperature was 11.2 C, higher than the 30-year average of 9.3 C.

And with no snowfall last month, that compares to a 30-year average of 10.2 centimetres for the month.

• RELATED: Chilliwack ready for winter weather


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