Thursday, August 3, 2017

July 2017 Summary


A dry July with average temperature 

A pretty average month for temperature, although it was half a degree warmer than average overall, this is still within the average range.  It was also very consistent as there were only 2 individual days that were more than 5 degrees from the average (you can see in the graph that the measured temperature was within the green band most of the time)

The wet first half of the month couldn’t make up for the very dry last half (only 11 mm after the 17th).  The final total for July was 64.0 mm which is a lot lower than the average of 98.6 mm.

With this dry month, the total precipitation for the year of 681.1 mm is now a bit closer to the average of 509.0 mm.  However, it is still the second wettest year so far (still behind 1947).


Summary for July 2017:
Maximum Temperature 29.9°C
Minimum Temperature 10.8°C
Average Daily High Temperature 25.9°C (Long term average 26.0°C)
Average Daily Low Temperature 15.1°C (Long term average 14.0°C)
Total Precipitation 64.0 mm (Long term average 98.6 mm)



(Long term averages based on 1981-2010 data for the Waterloo Wellington Airport)

Friday, July 21, 2017

June 2017 Summary

A hot June with average precipitation

During June we saw a few hot days (3 over 30°C), some colder ones (3 less than 18°C) and a whole lot of average ones.  However, continuing the trend for the last few years the nighttime lows were much warmer putting the overall temperature just over 1 degree above average.

Although the last week was really wet, it was actually quite dry to start off the month.  So the rain at the end of the month only managed to get the total for the month of 77.8 mm close to but still a bit below the average of 82.4 mm.

Looking at the first half of the year, the total precipitation of 617.8 mm is the second wettest first 6 months of the year, only coming behind 1947 when there was 624.8 mm.

Summary for June 2017:
Maximum Temperature 31.2°C
Minimum Temperature 6.4°C
Average Daily High Temperature 24.1°C (Long term average 23.6°C)
Average Daily Low Temperature 13.1°C (Long term average 11.5°C)
Total Precipitation 77.8 mm (Long term average 82.4 mm)


(Long term averages based on 1981-2010 data for the Waterloo Wellington Airport)

Thursday, June 1, 2017

May 2017 Summary


A cool and very wet May

The see-saw monthly temperatures continued in May with much cooler temperatures than the warmth we saw in April.  With a very cold start to the month and only a couple days above 25°C, the final overall temperature was 0.6 degrees below average making it the coldest May since 2009.

But the bigger story was that it just wouldn’t stop raining (well actually it did for a week but that didn’t seem to matter).  The total of 146.2 mm was much more than the average of 82.3 m, this is a lot but not even in the top 5 for the history of measurements in the area.

However, the total for April and May of 270.6 mm was the third highest of all time and not that much behind the record of 286.0 mm back in 1916.  While the total so far for the year of 540 mm is not only well above the average of 340 mm, but is also just below the record wettest first five months of the year (541.6 mm in 2011).


Summary for May 2017:
Maximum Temperature 28.4°C
Minimum Temperature -0.7°C
Average Daily High Temperature 16.7°C (Long term average 18.5°C)
Average Daily Low Temperature 7.0°C (Long term average 6.4°C)
Total Precipitation 146.2 mm (Long term average 82.3 mm)

(Long term averages based on 1981-2010 data for the Waterloo Wellington Airport)

Wednesday, May 3, 2017

April 2017 Summary


A warm and wet April

We saw a bounce back in temperatures with April coming in at two and half degrees above average, this makes it the warmest since 2010.  It was a classic spring weather pattern with some spells of temperatures over 20°C mixed in with days in the single digits.

It was yet another wet month, the total precipitation of 124.4 mm was much more than the average of 74.5 mm, and it was spread out over the month with 5 days over 10 mm.  The total for the year of 393.8 mm is well above the average for the first 4 months of the year which is 264.4 mm.

Assuming the 1 cm of snow that fell in April is the end of the snowfall season, the total will end up at 126.0 cm coming in below the average of 159.7 cm.

Summary for April 2017:
Maximum Temperature 26.1°C
Minimum Temperature -1.4°C
Average Daily High Temperature 14.1°C (Long term average 11.5°C)
Average Daily Low Temperature 3.5°C (Long term average 0.8°C)
Total Precipitation 124.4 mm (Long term average 74.5 mm)

(Long term averages based on 1981-2010 data for the Waterloo Wellington Airport)

Monday, April 3, 2017

March 2017 Summary


A wet March that was colder than February

Somebody better check the calendar because it seems that somebody switched the weather for February and March.  In fact for only the 5th time in the 100 years of records in the region, the average temperature was lower in March than it was in February (the last time this happened was in 1984).

The overall temperature was almost half a degree below average, but this is still within the average range.  However, this was the first time there was an overall temperature that was even a little below the average since April of last year.

It was a wet month with 90.2 mm of total precipitation compared to the average of 61.0 mm.  Interestingly, even with the cooler temperatures, a lot of that precipitation came down as rain instead of snow.  We only got 12 cm of snow compared to the average of 26.5 cm, this brings the total for the season up to 125 cm which is less than the 150 cm average for the end of March.


Summary for March 2017:
Maximum Temperature 17.1°C
Minimum Temperature -15.4°C
Average Daily High Temperature 2.7°C (Long term average 3.6°C)
Average Daily Low Temperature -5.6°C (Long term average -5.6°C)
Total Precipitation 90.2 mm (Long term average 61.0 mm)


(Long term averages based on 1981-2010 data for the Waterloo Wellington Airport)