Fri. Sep 20th, 2019

Beautiful Weather Continues – A Look Back at Fall Fair Weather

The 4 day precipitation and average high temperature for the weekend following Labour Day. Includes first and last 30 year split.

  • Vancouver Island Inland Sections Forecast - No watches or warnings in effect.

    Forecast Issued 11:00 AM PDT Friday 20 September 2019 - Friday: A mix of sun and cloud. High 22. UV index 6 or high. Friday night: Partly cloudy. Fog patches developing before morning. Low 12. Saturday: Becoming cloudy in the morning. Rain beginning in the afternoon. Fog patches dissipating in the morning. High 19. UV index 2 or low. Saturday night: Rain. Low 14. Sunday: Showers. High 18. Sunday night: Clear. Low 7. Monday: Periods of rain. High 14. Monday night: Periods of rain. Low 11. Tuesday: Periods of rain. High 21. Tuesday night: Cloudy periods. Low 10. Wednesday: Cloudy with 60 percent chance of showers. High 16. Wednesday night: Cloudy periods. Low 9. Thursday: Cloudy with 60 percent chance of showers. High 16.

  • Current Conditions
    Temperature
    21.7° C
    1.3 ° C/hr
    Barometer
    101.85 kPa
    0.0
    Wind
    WNW 2 km/h
    gusting 6 km/h
    Humidity
    58 %
    Rain Rate
    0.0 mm/hr
    Wind Chill
    21.7° C
    Heat Index
    21.7° C
    Dewpoint
    13.1° C
    UV
    4.3
    Solar
    631 W/m2
    Last Updated: 13:20:00 PDT
    Click to Refresh or See All Conditions
  • Today's Almanac
    Rain since Midnight
    0.0 mm
    Continuous Rainfall (< 24hr gap)
    No Qualifying Rainfall mm
    Civil Rise
    06:29
    Moon Phase
    Last quarter (63% full)
    Civil Set
    19:54
    Day Length
    13:12:35
    Day High
    21.7° C @ 13:19 Tdy.
    Day Low
    13.7° C @ 07:43 Tdy.
    Day High Rain Rate
    0.0mm/hr00:00
    Day High Barometer
    101.87 kPa @ 12:28 Tdy.
    Day Low Barometer
    101.71 kPa @ 02:58 Tdy.
    Day Low Windchill
    13.7° C @ 07:43 Tdy.
    Day High Heat Index
    21.7° C @ 13:19 Tdy.
    Day High Wind Gust
    S 6km/h @ 10:35 Tdy.
    Day High Solar Radiation
    861W/m2 @ 11:26 Tdy.
    Day High UV Index
    4.7 @ 12:41 Tdy.

The Jetstream Loop:

The sunny and warm weather is just going to keep on rolling.  There will be fog in the mornings like there has been the past few days but it will burn off everyday.
There is no rain in the forecast until at least next Tuesday!

The culprit is a warped jet stream that is headed way to the north of us.

300j.81.0000As you can see it then dives down along the Rockies.  It is dragging cold air and snow and rain deep into Alberta and the Prairies.  This will be a very tough year for farmers who started late, had a cold summer, and now might lose everything to more rain and frost.

Fall Fair:

Since I did it with the Salmon Festival Weekend, I thought I would look back at the weather for the Fall Fair Weekend.  The Fall Fair celebrated its 69th anniversary this weekend.  It’s one of the oldest fairs in Western Canada.

Here’s the details, click the image for larger.

The 4 day precipitation and average high temperature for the weekend following Labour Day. Includes first and last 30 year split.
The 4 day precipitation and average high temperature for the weekend following Labour Day. Includes first and last 30 year split.

This year’s weekend average of 29.7º C was the 4th warmest on record after 1950 (32.8º C) , 2011 (32.5º C), and 1980 (30.3º C).  We received no rain over the weekend.   It rains 64.3% of the time over the 4 days of the fair.

Since the Fair has been going for so long, I also broke down the first 30 years and the last 29 years to see if anything has changed much over the life of the fair.  The result is interesting.

From 1945-1975 there was an equal occurrence of 29% of warm (at least 25º C) and cold (less than 20º C).  The average temperature in that time was 22.6º C. However since 1975, the  occurrence rose for warm weekends (30%) and even more for cold weekends (35%) and the average temperature was slightly higher at 22.9º C.

Occurrence and average accumulation of rain over the weekend dropped slightly from 64.5% and 15.5 mm  in the first 30 years to 62.5% and 14.8 mm in the last.

You can download the full sheet in PDF format here.

That’s all the stats I can do for today!  Have a great hump day!