UHI and Tmin Nanaimo

Yesterday I posted a WUWT article about Tmin in the UK rising 1.7C thanks to UHI.

I ive near Nanaimo BC and here is the graphs for Tmin and Tmax since 1947.

Tmax has barely changed. Tmin is up 2C or more. UHI.

Data from Weatherstats and Environment Canada

Second Coldest February (avg) Nanaimo

It was the second coldest February in Nanaimo , BC , Canada (data from 1948) in terms of average temperature. The average was 0.05C .

The coldest was 1989 when it averaged-0.03C.

2019

1989

The warmest February was 2015 and it looked like:

Data courtesy weatherstats.ca and Environment and Climate Change Canada

10 MORE Random Canadian Tmax from 1980

A few days I published 10 more randomly chosen graphs of TMAX using Environment Canada’s monthly summaries.

I was fiddling with the graphing code to add the overall rate of temp change and color the title – red for warming and blue for cooling.

I took a closer look at 3 stations (2 are airports).

Tmax temperatures falling at -.414C /dec, -.224/dec and -.246/dec

April Tmax in Brandon have fallen 7C in 35 years.

Tx - SWIFT CURRENT CDA SK . 1980 to 2015 . -0.414 C per decade

Tx - FORT MCMURRAY A AB . 1980 to 2015 . -0.224 C per decade

Tx - BRANDON A MB . 1980 to 2015 . -0.246 C per decade

 

 

 

 

 

 

 

 

 

10 MORE Random Canadian Tmax from 1980

A few days I published 10 randomly chosen graphs of TMAX using Environment Canada’s monthly summaries.

I picked 1980 to 2015 partly to create a round number and partly because that is sort of when AGW became noticeable.

I picked TMAX because I think TMIN’s are rising because of UHI.

The red lines indicate a warming trend. The blue a cooling trend.

Anyone see evidence of CO2 making it warm?

Here are 10 more.

Tx - BONILLA ISLAND BC - 1980 to 2015

Tx - CASTLEGAR A BC - 1980 to 2015

Tx - BRANDON A MB - 1980 to 2015

Tx - GOLDEN A BC - 1980 to 2015

Tx - KANANASKIS POCATERRA AB - 1980 to 2015

Tx - MICA DAM BC - 1980 to 2015

Tx - SWIFT CURRENT CDA SK - 1980 to 2015

Tx - FORT MCMURRAY A AB - 1980 to 2015

Tx - VANCOUVER HARBOUR CS BC - 1980 to 2015

Tx - BONILLA ISLAND BC

10 Random Canadian Tmax from 1980

Every once in a while I visit the data for the Canada. Earlier today I looked at the station nearest me (NANAIMO A).

But since I have the code … I thought why not look at 10 random stations that have data in 1980 and 2015.

Today I am looking at TMAX monthly data (using Environment Canada monthly summaries) for 10 random stations from 1980.

Each line of graphs is a season  – Dec/Jan/Feb …. etc.

 

Tx Average BEAUCEVILLE QC

 

Tx Average NEW GLASGOW ON

 

 

Tx Average TERRACE A BC

 

Tx Average WHITECOURT A AB

 

Tx Average AROOSTOOK NB

 

Tx Average BARWICK ON

 

Tx Average MIDLAND WATER POLLUTION CONTROL PLANT ON

 

Tx Average QUALICUM R FISH RESEARCH BC

 

Tx Average UCLUELET KENNEDY CAMP BC

 

Tx Average GIBSONS GOWER POINT BC

 

Nanaimo Tmax from 1980

Every once in a while I visit the data for the weather station closest to my hometown on the west coast of Canada.

Today I am looking at TMAX monthly data (using Environment Canada monthly summaries) for NANAIMO A from 1980.

Each line of graphs is a season  – Dec/Jan/Feb …. etc.

5 months are warming. 4 are cooling. 3 are cooling ever so slightly.

If there is a CO2 signal in there I am missing it.

Tx Average NANAIMO A