Wednesday, September 24, 2014

Summer 2014 Summary

The third wettest summer in the region with average temperature

Although it was never really that hot during the summer (the maximum temperature was only 30.1 °C) it also was never cold, so the overall temperature was just a little (0.06 degrees) below average but still within the average range.

With 5 days of over 25 mm precipitation it isn’t hard to image that it was a very wet summer.  In fact, with 442.1 mm it was the third wettest summer we have seen in the 100 years of records in the region.  It was consistently wet with the only dry period occurring during the last half of August when we saw less than 5 mm.

Summary for Summer 2014:
Maximum Temperature 30.1°C
Minimum Temperature 2.6°C
Average Daily High Temperature 23.4°C (Long term average 24.2°C)
Average Daily Low Temperature 12.8°C (Long term average 12.2°C)
Total Precipitation 442.1 mm (Long term average 274.0 mm)

(Long term averages based on 1971-2000 data for the Waterloo Wellington Airport) 

Sunday, September 21, 2014

Summer of 2014 Poll

We want to know what you thought of the summer of 2014.

Vote at the poll on top of the UW weather station blog:

Monday, September 8, 2014

August 2014 Summary

An average August for both temperature and precipitation

Well here is something you might not believe, but it was actually a bit warmer than average during the month of August.  Not by much, just 0.3 degrees so it is still within the average range, but I’m sure a lot of people would have expected it to have been a lot colder than average.  Although it didn’t get all that warm during the month, it was also never really cold for very long.

One day that did feel cold was August 14th when the high only went up to 15.9°C, the last time it didn’t hit at least 16 during the month of August was back in 2009.

The fact that we didn’t hit 30°C during July or August was something that got a lot of attention in the media.  However, not getting to 30 during these months is something we have seen 4 times in the 17 years of the UW weather station.  Thus it is not something we expect every year, but it is certainly is not all that rare an occurrence.

Although the 91.6 mm we saw in August was within the average range for the month, this really doesn’t tell the entire story.  Almost 2/3 of the precipitation for the month came down on the 2nd when 59.4 mm of rain fell (this was the wettest single day since July 23rd, 2010 when we had 62.5 mm).  Of that total, 53.6 mm came in a single hour (3:34 to 4:33 pm), this is something that has only about a 4 percent chance of happening in any given year.

For the first 7 months of the year, the total precipitation of 596.0 mm is very close to the 586.3 mm that we would expect.

Summary for August 2014:
Maximum Temperature 29.9°C
Minimum Temperature 9.0°C
Average Daily High Temperature 24.4°C (Long term average 24.7°C)
Average Daily Low Temperature 13.5°C (Long term average 12.6°C)
Total Precipitation 91.6 mm (Long term average 87.0 mm)

(Long term averages based on 1971-2000 data for the Waterloo Wellington Airport) 

Saturday, September 6, 2014

Summary of September 5th storm

During the storm on September 5th we saw just a little over 40 mm of precipitation and also of note was the temperature drop of almost 7 degrees between 7:00 pm and 7:15 pm.