Wednesday, June 8, 2022

Spring 2022: cooler and a bit wetter than normal

Meteorological spring consists of March, April, and May.  Thanks to a very chilly April and May, Spring 2022 was the coolest spring in Victoria since 2011.  Spring 2022 was also a bit wetter than average, especially during April.

The mean temperature this past spring at Victoria Gonzales was 9.0 degrees (ave. high 11.9 & ave. low 6.0), which is 1.1 degrees below the 30-year average of 10.1 C.  March was 0.2 degrees warmer than normal, but April and May were both 1.8 degrees cooler than normal.   Both April and May were the 2nd coldest in the past 30 years, with only 2011 being colder.     

The chart below shows the daily maximum and minimum temperatures at Victoria Gonzales during spring 2022, compared with the 30-year averages.  Temperatures were fairly normal until early April, but the second half of spring saw temperatures that were consistently lower than normal.  The highest temperature during the spring 2022 was 17.3 C on April 7, whereas the average warmest spring day at Victoria Gonzales is 25 C.  Victoria Gonzales normally sees 5.2 days during spring with temps above 20 C, and 0.8 days with temps above 25C.  The warmest temperature in May this year was just 16.6 C - the coldest May maximum ever recorded at Victoria Gonzales.


There were no days during Spring 2022 when the overnight low fell below freezing.  On average, Victoria sees just 0.6 days each spring with a low temperature below 0.  The coldest temperature of the spring was April 12th when the temperature dropped to 0.3 degrees.  


Daily Max & Min Temps in Victoria, Spring 2022



Victoria received 147 mm of precipitation during the March to May period.  That's about 27% more than the 30-year average spring precipitation of 115 mm.  March saw 60 mm of rain -9% above normal, April saw 53 mm of rain -  just 55% above normal, and May saw 34 mm - 30% above normal rainfall.  

Spring 2022 also saw more days with measurable rainfall than the average: 42 days compared with the average of 33.6.  There were 15 days in March, 15 days in April, and 12 days in May with measurable rainfall.  


The chart below shows daily precipitation during spring 2022, and compares the cumulative precipitation with the 30-year average.   Cumulative rainfall went above average in mid-March, and stayed above average for the rest of the spring.  The two wettest days of spring 2022 were March 17th and April 4th, each with 21 mm.

Daily & Cumulative Rainfall, Spring 2022


The chart below compares the precipitation amounts in Victoria this spring with other locations in the region.  Victoria Gonzales typically receives the lowest amount of rainfall in the region, and spring 2022 was no exception.  Victoria Gonzales received 147 mm (27% above normal) while the Victoria Airport received 220 mm (33% above normal).  Vancouver Harbour received 406 mm of rain during spring 2022 (18% above normal, and nearly 3 times as much as Victoria).  Seattle received 250 mm, which was closer to its normal of 234 mm, but still 70% more than Victoria.


Spring rainfall in the region, 2022


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