Record Setting Weather In 2010
With no additional rainfall likely in the final hours of the 2010 calendar year, two weather words will leave their mark on many locations in Northwest Oregon and Southwest Washington this past year, “La Nina” and “Rain!” This year featured the strongest La Nina since the mid 1950’s and the weather stats did not disappoint. The following data is for the Portland International Airport:
Wettest calendar year since 1996 (nearly 15 years) with 46.18” for the year to date.
Portland picked up 8.35″ of rainfall for the month of December, which is approximately 3″ or 155% above normal for the month.
Wettest December since 1996 when more than 13” of rainfall soaked the area.
7th wettest year on record at the Portland International Airport where records date back nearly 70 yrs to 1940. Here are the top 7 in ranking order:
1996 – 63.20”
1950 – 51.09”
1968 – 50.89”
1953 – 48.59”
1983 – 47.19”
1948 – 46.21”
2010 – 46.18”
Calendar year 2010 was nearly 9 ½” above normal in Portland.
1996 is the wettest year on record at the Portland Airport (1940-2010) when more than 63″ of rain fell.
In 2009, Portland received just 30″ of rainfall, nearly 17″ less than 2010. Normal yearly rainfall for Portland is approximately 36”
The Portland airport broke its all-time one hour rainfall record when 1.03” of rain fell in a single hour back in early September. Old record was 0.93” set in May 2008.
Wettest June on record (1940-2010) with 4.27”
Coldest summer (June 1st through August 31st) in 17 years.
Coldest November daytime high temperature in 25 years.
Other items of note — the strongest tornado to strike western Oregon or Washington since 1992 occurred in mid December in the town of Aumsville, Oregon. The Oregon chapter of the AMS will host a special technical meeting in January to detail exactly how this tornado came to be. All are welcome to attend this free meeting. For details see: http://www.ametsoc.org/chapters/oregon/index.html
Portland was not the only local city to see seeing a very wet calendar year. Phil Pasteris of Tigard reported a whopping 10.51” of rainfall in just the month of December alone. Here are some other selected stations and their totals. The first number is December 2010 rainfall, followed by year end total (assuming no additional rain or snow falls):
Vancouver 8.23″ – 48.93″
Astoria 11.37″ – 79.67
Salem 9.95″ – 49.44″
Eugene 6.78″ – 45.59″
Hillsboro 8.16″ – 43.16″
McMinnville 9.58″ – 39.53″
Troutdale 7.38″ – 48.26″
Finally, I have some great news! Apparently a lot of people are reading this blog. In the first 12 hours after launching earlier this week, the blog received more than 3,050 page views and even more individual hits. That is excellent! After all, this blog is for all of you to discuss anything weather related no matter what your level of experience is. Please spread the word and pass along the blog URL http://www.columbian.com/weblogs/weather to others. Those of you who know me best know I love weather stats. So, feel free to post your year-ending stats here no matter where you are in the metro area!