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Old 02-07-2013, 11:23 AM
 
Location: Portland, OR
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Default Portland Rainfall Winter 2013: It's been much wetter than normal.

Well, I've heard from some long-timers that it's been sunnier than normal for a Portland winter, and then some who say what we've experienced so far is average. If my calculations are correct, it's actually been wetter than normal.

Per the USGS, Portland has gotten an average of 28.3 inches this "water year." The USGS says a water year is October 1 to Sept 30th of the following year. October 1 roughly approximates the start of rainy season if I'm not mistaken. Here are averages by month:

January5.07 inches February4.18 inches March3.71 inches April2.64 inches May2.38 inches June1.59 inches July0.72 inches August0.93 inches September1.65 inches October2.88 inches November5.61 inches December5.71 inches

So average October thru January end is 19.27, but we've gotten 28.3 inches already this water year.

City of Portland HYDRA Rainfall Network
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Old 02-07-2013, 11:31 AM
 
Location: Tigard
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Thank you, VTHokieFan. I've been wondering about this. It has seemed wetter and darker and colder to me this January than last.
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Old 02-07-2013, 02:01 PM
 
Location: Just outside of Portland
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IMHO, it's been wetter, but milder.
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Old 02-08-2013, 08:04 AM
 
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Quote:
Originally Posted by VTHokieFan View Post
Well, I've heard from some long-timers that it's been sunnier than normal for a Portland winter, and then some who say what we've experienced so far is average. If my calculations are correct, it's actually been wetter than normal.
I don't see any contradiction. Portland's climate isn't remarkable in the volume of rainfall, but for the amount of time that it's rainy, drizzly, or sunless and grey.
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Old 02-08-2013, 11:30 AM
 
Location: Minnesota
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Wow, I was sure the average annual rainfall was about 35 inches. Did it get drier in the last decade?
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Old 02-11-2013, 01:21 AM
 
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Hmmm seems way dryer and sunnier this winter. Last year stuff was flooding in our complex and I remember like two weeks of rain and I and dogs were always wet and this year I feel like its barely rained. And I'm out every day.
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Old 02-11-2013, 01:58 AM
 
Location: We_tside PNW / CO / SA TX / Thailand
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Quote:
Originally Posted by Beenhere4ever View Post
Wow, I was sure the average annual rainfall was about 35 inches. Did it get drier in the last decade?
Varies a lot WITHIN Portland and region (altitude and terrain). I am less than 20 miles away and get over 100" annually. 25" of drizzle in November alone...

I was gone for Jan. and I see that there was plenty of RAIN, as I have areas of erosion on my farm / forest. Thanks for the current dry stretch, I need to get LOTS done.
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Old 02-11-2013, 02:49 AM
 
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There was a long stretch of very cold and very dry weather, but lately it's been raining a lot and slightly warm considering the time of year. But nothing too unusual.
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Old 02-11-2013, 05:43 AM
 
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I hear from locals that this winter has been super mild. It seemed overly rainy when we got here in November, and in December, but I just chalked that up to "Portland is rainy!" I've been surprised, though, by how sunny and clear it's been for days at a time in January and February. I can't speak for any averages, but to me, it seems to have been really quite dry for what was supposed to have been the worst of winter. March and April bring rain in any part of the country. I'll see how I feel after that.
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Old 02-12-2013, 05:16 PM
 
Location: Portland, OR
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Several years ago, we had long stretch of dry, often sunny winter weather - so much so that they finally said we'd risk a summer drought if it didn't start raining the following week, and continue raining substantially for the next couple months. Guess what? It did exactly that, and our rainfall total was up to normal by summertime.
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