July Temperature Outlook

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**** Info via Environment Canada

July Temperature Outlook

Canada saw its first above 40°C readings of the year in a few communities of southern Manitoba in early June. Gretna hit 41.3°C and Morden reached 40.4 °C on June 4. Meanwhile Emerson, on the same day, hit 40.6°C and broke the old record of 36.7°C, set in 1922. To put things in perspective, the last time Manitoba saw temperatures above the 40°C mark was in 1989 when Turtle Mountain and Myrtle hit 40.5°C on August 1.

Then on June 27, Lytton, B.C. set a new Canadian heat record at 46.6 °C. This record was promptly broken in the same location on June 28 at 47.9 °C, and AGAIN on Jun 29 at 49.6 °C. Daily and monthly heat records continued to fall across western Canada through the last week of June as the relentless and dangerous heat dominated the weather picture.

Below is the forecast for the “temperature anomaly” for the month of July. The temperature anomaly is the “difference from normal temperatures” for the entire month.

The forecasts are categorized as:

  • blue indicates below normal temperatures;
  • white (no colour) indicates near normal temperatures; and
  • red indicates above normal temperatures – all categories are compared to the 30 seasons of the 1981-2010 period.

This is a prediction of the anomaly of the mean daily temperature at 2 metres (i.e. at standard temperature observation height). It is not a forecast of the maximum nor of the minimum daily temperature.

Long range forecast user guide.

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