Is This Weather Normal? – June 2019

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June in Terrace, BC was warmer than average and with average precipitation. For the year so far – now halfway through 2019 – weather in Terrace, BC has been warmer than average, and precipitation has totaled 70% of normal.

Temperature:

The average June 2019 temperature was 15.1°C, 1.3°C above the 1971-2000 baseline climate, the 20th warmest June on record. The month started with temperatures below average, but not abnormally so, and then finished above average (Fig. 1).

Figure 1: Daily average temperature for June 2019 in Terrace, BC (dotted red line). The solid red line shows January-May 2019 temperature. The black line shows the 1971-2000 average. The two gray lines show plus/minus one standard deviation. Note that there are three days of missing temperature data (June 17, 18 and 19).

For the year so far, we’ve had a warmer than average January, colder than average February then March through June above average (Fig. 2). This has led to a year-to-date average temperature of 5.6°C, which is 1.1°C above the 1971-2000 baseline climate, the 21st warmest on record.

Figure 2: 2019 average monthly temperature for Terrace, BC through June. The dotted blue curve is 2019, the 10 red lines are the ten warmest years on record, every other year is in gray. The black line is the long-term average, and the error bars mark plus/minus one standard deviation.

Precipitation:

Precipitation during June 2019 totaled 58mm, 2mm more than the 1971-2000 baseline climate. Precipitation for the year has totaled 386mm, 70% of normal (Fig. 3).

Figure 3: Cumulative precipitation – where total precipitation (green), rain (dark blue), and snow (light blue) are added throughout the year. Solid lines show the 1971-2000 average. Dotted lines show the 2019 totals to date.

For the year so far, temperature has been above average in all months except February, with May tying the all-time record for that month. Terrace has seen some return to more normal precipitation in recent weeks, but this isn’t enough to recover from the longer-term deficit.

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