May 2013 recap: Warm and Wet – Warm and dry summer predicted

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

    Forecast Issued 4:00 PM PDT Tuesday 24 April 2018 - Tuesday night: Clearing this evening. Low plus 4. Wednesday: Sunny. High 25. UV index 5 or moderate. Wednesday night: Clear. Low plus 5. Thursday: Sunny. High 26. Thursday night: Clear. Low 7. Friday: A mix of sun and cloud. High 23. Friday night: Cloudy periods. Low 7. Saturday: A mix of sun and cloud with 30 percent chance of showers. High 22. Saturday night: Cloudy with 30 percent chance of showers. Low 7. Sunday: Cloudy with 30 percent chance of showers. High 15. Sunday night: Cloudy periods. Low plus 5. Monday: A mix of sun and cloud. High 16.

  • Current Conditions
    Temperature
    8.1° C
    -1.4 ° C/hr
    Barometer
    102 kPa
    0.0
    Wind
    N/A 0.0 km/h
    gusting 0.0 km/h
    Humidity
    79 %
    Rain Rate
    0.0 mm/hr
    Wind Chill
    8.1° C
    Heat Index
    8.1° C
    Dewpoint
    4.7° C
    UV
    0.0
    Solar
    0 W/m2
    Last Updated: 1:45:00 PST
    Click to Refresh or See All Conditions
  • Day Almanac
    Day's Rain
    0.0 mm
    Day ET
    0.0 mm mm
    Rain Storm
    NotAvailable mm
    Civil Rise
    05:32
    Moon Phase
    Waxing gibbous (76% full)
    Civil Set
    21:03
    Day Length
    13:17:07
    Day High
    10.6° C @ 00:00 Tdy.
    Day Low
    8.1° C @ 01:43 Tdy.
    Day High Rain Rate
    0.0mm/hr00:00
    Day High Barometer
    102 kPa @ 01:13 Tdy.
    Day Low Barometer
    101.93 kPa @ 00:00 Tdy.
    Day Low Windchill
    8.1° C @ 01:43 Tdy.
    Day High Heat Index
    10.6° C @ 00:00 Tdy.
    Day High Wind Gust
    S 0.0km/h @ 00:05 Tdy.
    Day High Solar Radiation
    0W/m2 @ 00:00 Tdy.
    Day High UV Index
    0.0 @ 00:00 Tdy.

It was a warmer and wetter than normal May. The average temperature in May was 13.2C and we received 85mm of rain. This is 2.0C above normal for temperature and 10mm above normal for rainfall compared to the 1970-2000 normal daily averages for May at Environment Canada .

I am going to omit my station and some values from the EC station this month because of the work I did relocating my station and a few days of missing data from EC which I believe may skew the averages significantly. Otherwise, these will be a city wide average of the three Islandweather stations in the City and the Airport EC station where applicable. This month hopefully we can include all 5 local stations. Details are below.

Average Daily Temperature difference: +2.1C
Alberniweather:13.5C (not included due to relocation)
Environment Canada Airport: 12.9C (not included due to missing values)
Alberni Elementary:13.4C
Maquinna: 13.0C
Neptune Canada: 13.5C
Overall Average: 13.2C
Environment Canada Normal: 12.7C

Average Minimum Daily Temperature difference: +2.6C
Alberniweather: 8.9C (not inc)
EC: 6.9C
AES: 8.6C
MAQ: 8.6C
NEP: 8.8C
Overall Average: 8.2C
Environment Canada Normal: 5.6C

Average Maximum Daily Temperature difference: +0.9C
Alberniweather: 19.0C(not inc)
EC: 18.8C
AES: 18.6C
MAQ: 18.3C
NEP: 18.7C
Overall Average: 18.6C
Environment Canada Normal: 17.7C

Average Rainfall difference: +10mm
Alberniweather: 46.5mm(not inc: it missed rain days)
EC: 64.4mm (not inc: it missed rain days)
AES: 85.2mm
MAQ: 84.8C
NEP: NA (not measured)
Overall Average: 85.0mm
Environment Canada Normal: 75mm

Meteorologically Speaking… Summer is here!
(Meteorological Seasons are: June-Aug, Sept-Nov, Dec-Feb, Mar-May)

It looks like we have reached the end of the rainy season and we will now turn drier.
The Peak reported this morning that The Weather Network expects a warmer than normal and dry summer. The latest forecast out this morning from Accuweather (which uses the European global weather model, considered the best in the world for medium to long term forecasting) is that June is going to be notably drier and warmer than we have seen in the past few ‘June-uary’ years.

Here is next week:
20130605-085755.jpg

So it looks like the warmth is going to stick around for a while, but not the wet. Our normal rainfall for June is 49.4mm.

We should come to expect warmer than normal summers as the data from Environment Canada shows temperatures have risen 1.4C since 1949 and continue to do so and we match that trend. Nationally though they are getting slightly wetter, perhaps due to more storm activity in Central, Eastern and Atlantic Canada, but I think in our local climate, they are actually getting drier. That is still something I need to research but have been unable to lately due to my main computer being in the shop the last month.