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Downtown Seattle Snowfall By Year


BLI snowman

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They also measured 6.5" in downtown Portland in 2003-04. I think in actuality they had about 15" that winter.

Downtown obs for both Portland and Seattle leave a lot to be desired. Pretty sad considering that's where you have the real longevity in the climate record. It's a stark contrast to reliable city stations like Central Park.

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That little system on the 22nd was a beast in the Salem area. We picked up about 8" from that one in Silverton.

Snowfall                                  Precip

2022-23: 95.0"                      2022-23: 17.39"

2021-22: 52.6"                    2021-22: 91.46" 

2020-21: 12.0"                    2020-21: 71.59"

2019-20: 23.5"                   2019-20: 58.54"

2018-19: 63.5"                   2018-19: 66.33"

2017-18: 30.3"                   2017-18: 59.83"

2016-17: 49.2"                   2016-17: 97.58"

2015-16: 11.75"                 2015-16: 68.67"

2014-15: 3.5"
2013-14: 11.75"                  2013-14: 62.30
2012-13: 16.75"                 2012-13: 78.45  

2011-12: 98.5"                   2011-12: 92.67"

It's always sunny at Winters Hill! 
Fighting the good fight against weather evil.

 

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Seems like they had 5-6" with the big storm, yeah?

 

Yeah about that. They had light accumulating snow on a couple of other days that month too. Early morning on the 1st and the 13th. Also there was another day at the beginning of March 2012 where an early morning shower went through Salem and up Hwy 22 toward Stayton. Most of Salem picked up an inch or two with that one as well. 

Snowfall                                  Precip

2022-23: 95.0"                      2022-23: 17.39"

2021-22: 52.6"                    2021-22: 91.46" 

2020-21: 12.0"                    2020-21: 71.59"

2019-20: 23.5"                   2019-20: 58.54"

2018-19: 63.5"                   2018-19: 66.33"

2017-18: 30.3"                   2017-18: 59.83"

2016-17: 49.2"                   2016-17: 97.58"

2015-16: 11.75"                 2015-16: 68.67"

2014-15: 3.5"
2013-14: 11.75"                  2013-14: 62.30
2012-13: 16.75"                 2012-13: 78.45  

2011-12: 98.5"                   2011-12: 92.67"

It's always sunny at Winters Hill! 
Fighting the good fight against weather evil.

 

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Yeah about that. They had light accumulating snow on a couple of other days that month too. Early morning on the 1st and the 13th. Also there was another day at the beginning of March 2012 where an early morning shower went through Salem and up Hwy 22 toward Stayton. Most of Salem picked up an inch or two with that one as well. 

 

March 2012 was ridiculous. I remember at least four separate snowfalls in Portland that month...there might have been five. Too lazy to check right now.

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Borderline climates get screwed hard by the planetary warming. Thing is, although we used to get slightly more big upper level arctic airmasses, they weren't that much more common than in these last few decades. The main thing is that Seattle (and Portland) used to be a lot better at getting wet snow in borderline 32-33 degree situations.

Not factoring in the Pacific's buffering effect, you're talking about a 1.1F contribution since 1950, or a 2.1F contribution since 1900.

 

A lot of your problems are related to the continuous expansion/poleward migration of the Hadley Cells since the end of the LIA. This leads to a poleward migration of the jet, weakens the Walker/Ferrel cells, as well as the boreal-winter NPAC high. Not good if you like lowland snowfall.

foto26446a4f1f801ef3b3d1564dea31df66.png
"Western troughing literally kills people at this time of year. And in the most gruesome of ways."
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Not factoring in the Pacific's buffering effect, you're talking about a 1.1F contribution since 1950, or a 2.1F contribution since 1900.

 

A lot of your problems are related to the continuous expansion/poleward migration of the Hadley Cells since the end of the LIA. This leads to a poleward migration of the jet, weakens the Walker/Ferrel cells, as well as the boreal-winter NPAC high. Not good if you like lowland snowfall.

But the theory is the coming solar grand minimum will change this?

 

Also...can you think of a good reason why it has been so easy for us to get Arctic outbreaks in December, but almost impossible in January?

Death To Warm Anomalies!

 

Winter 2023-24 stats

 

Total Snowfall = 1.0"

Day with 1" or more snow depth = 1

Total Hail = 0.0

Total Ice = 0.2

Coldest Low = 13

Lows 32 or below = 50

Highs 32 or below = 3

Lows 20 or below = 3

Highs 40 or below = 9

 

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  • 7 years later...
On 11/19/2014 at 12:07 AM, BLI snowman said:

With the downtown Seattle data now available on NCDC back to 1894, just thought I'd take the time to officially post all of the city of Seattle's official snow data for each winter and also highlight each winter's ENSO state. Red means El Nino, blue means La Nina, neither is neutral.

 

1890-91: 15.3"

1891-92: 2.2"

1892-93: 58.0"

1893-94: 19.0" (NCDC database records begin on 1/1)

1894-95: 17.1"

1895-96: 10.5"

1896-97: 31.2"

1897-98: 6.9"

1898-99: 37.0"

1899-00: 1.3"

1900-01: 16.1"

1901-02: 15.0"

1902-03: 11.3"

1903-04: 15.0"

1904-05: 4.1"

1905-06: 4.7"

1906-07: 16.0"

1907-08: 3.0"

1908-09: 15.6"

1909-10: 15.4"

1910-11: 5.7"

1911-12: 10.2"

1912-13: 15.8"

1913-14: 1.1"

1914-15: 0.0"

1915-16: 60.9"

1916-17: 16.0"

1917-18: 6.0"

1918-19: 0.0"

1919-20: 3.4"

1920-21: 9.0"

1921-22: 12.9"

1922-23: 30.3"

1923-24: 2.2"

1924-25: 7.3"

1925-26: 0.0"

1926-27: 5.7"

1927-28: 5.1"

1928-29: 18.1"

1929-30: 11.3"

1930-31: 0.0"

1931-32: 7.9"

1932-33: 2.3"

1933-34: 0.0"

1934-35: 17.6"

1935-36: 7.8"

1936-37: 19.1"

1937-38: 6.3"

1938-39: 2.0"

1939-40: 0.8"

1940-41: 0.0"

1941-42: 1.0"

1942-43: 18.4"

1943-44: 0.2"

1944-45: 0.2"

1945-46: 5.0"

1946-47: 9.5"

1947-48: 1.2"

1948-49: 20.0"

1949-50: 34.0"

1950-51: 7.5"

1951-52: 8.6"

1952-53: 0.0"

1953-54: 16.9"

1954-55: 1.0"

1955-56: 16.7"

1956-57: 21.3"

1957-58: 0.0"

1958-59: 6.5"

1959-60: 6.5"

1960-61: 4.5"

1961-62: 8.4"

1962-63: 1.8"

1963-64: 1.4"

1964-65: 13.1"

1965-66: 8.4"

1966-67: 6.0"

1967-68: 8.5"

1968-69: 36.2"

1969-70: 0.0"

1970-71: 15.6"

1971-72: 15.3" 

1972-73: 8.7" (WB office moves across I-5)

1973-74: 3.0"

1974-75: 7.5"

1975-76: 1.0"

1976-77: 1.0"

1977-78: 0.3"

1978-79: 6.0"

1979-80: 14.4"

1980-81: 1.5"

1981-82: 5.2"

1982-83: 0.0"

1983-84: 1.4"

1984-85: 6.9"

1985-86: 11.1"

1986-87: 0.3"

1987-88: 0.0"

1988-89: 16.1"

1989-90: 6.0"

1990-91: 9.8"

1991-92: 0.0"

1992-93: 3.0"

1993-94: 2.0"

1994-95: 2.5"

1995-96: 1.3"

1996-97: 22.8" (*November measurement is too low)

1997-98: 3.0"

1998-99: 2.0" (WB office closes, used Sandpoint data from here)

1999-00: 0.0"

2000-01: 4.7"

2001-02: M (no official Seattle snow data between 2001 and 2007!)

2002-03: M

2003-04: M

2004-05: M

2005-06: M

2006-07: M

2007-08: 3.1"

2008-09: 11.9"

2009-10: 0.0"

2010-11: 6.3"

2011-12: 7.7"

2012-13: 0.0"

2013-14: 2.9"

 

 

Longterm average (1890-2014): 9.1"

Longterm median (1890-2014): 6.3"

 

El Nino average: 5.3"

La Nina average: 11.1"

Neutral average: 10.8"

Graph is a wonderful tool. Thx 

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On 11/19/2014 at 9:47 PM, wx_statman said:

I had 16" in Oregon City just from December 20-22. That's after getting 3" on the 14th. The Salem to Oregon City corridor really maximized snowfall on both the 14th and again with that little system on the 22nd. I wouldn't be surprised if at least parts of Salem topped 20" for the winter.

I think some parts of the Portland Metro area might have approached 30" for the winter going off of reports.

I didn't live here then but seems like the West Portland Metro also did great during that stretch from the 14th-22nd. Beaverton seems to have had around 4" on the 14th, I see a report of 3.5" in this area too. 

And then on the 17th, maybe 1-2" in this area as well, and then reports of ~16" just from the 20th-22nd. 

Seems like totals surpassed 20" in that 8 day long stretch here into the South/Southwest Metro while Downtown had 12" and PDX 15"?

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On 10/8/2022 at 10:22 AM, Doiinko said:

I think some parts of the Portland Metro area might have approached 30" for the winter going off of reports.

I didn't live here then but seems like the West Portland Metro also did great during that stretch from the 14th-22nd. Beaverton seems to have had around 4" on the 14th, I see a report of 3.5" in this area too. 

And then on the 17th, maybe 1-2" in this area as well, and then reports of ~16" just from the 20th-22nd. 

Seems like totals surpassed 20" in that 8 day long stretch here into the South/Southwest Metro while Downtown had 12" and PDX 15"?

I had 35" that winter in Clark County. About 24" in December, 9.5" in January, and 1.5" in February. Also a couple of traces in March.

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32 minutes ago, BLI snowman said:

I had 35" that winter in Clark County. About 24" in December, 9.5" in January, and 1.5" in February. Also a couple of traces in March.

I didn't know January was that snowy there! Looks like December was about as snowy in most of this area but then January and February much more there.

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