2014 Goes Down as 4th Warmest Year in Portland

[IbrChris]

Considering the 1872-present period of record for the Portland area (downtown and airport), 2014 was the 4th warmest year on record with a mean temperature of 55.96 degrees Fahrenheit. August, September and October were all the warmest on record.

Top 5 warmest years

57.3 - 1934
56.8 - 1926
56.2 - 1992
56.0 - 2014
55.9 - 1940

rounded to nearest tenth of a degree Fahrenheit.

Some key stats:

July was 6th warmest on record, 71.8. Record is 74.1 in 1985.
August was warmest on record, 73.5. Previous record 72.9 in 1967.
September tied for warmest on record, 67.6. 1994 also saw 67.6.

October was warmest on record by a full degree, 60.1. Previous record 59.1 in 1901.
December was 5th warmest at the airport location but failed to reach the top 10 when the entire POR is considered. Downtown it was not a top 5 warm December but fell a few tenths shy of 5th place. May was also on the warm side this year by a fair margin but fell well short of a top 10 warm May.

August-October 2014 is one of only two consecutive three-month spans to have seen top 10 warmth in each month. The other was January-April 1934 which was the longest period of anomalous warmth in recorded history for Portland. The 1934 span has two top records still intact and two which are 2nd place at present.

January 1934 - 2nd warmest on record
February 1934 - Warmest on record

March 1934 - Warmest on record

April 1934 - 2nd warmest on record

[Jesse]

Considering the 1872-present period of record for the Portland area (downtown and airport), 2014 was the 4th warmest year on record with a mean temperature of 55.96 degrees Fahrenheit. August, September and October were all the warmest on record.

 

Top 5 warmest years

 

57.3 - 1934

56.8 - 1926

56.2 - 1992

56.0 - 2014

55.9 - 1940

rounded to nearest tenth of a degree Fahrenheit.

 

Some key stats:

 

July was 6th warmest on record, 71.8. Record is 74.1 in 1985.

August was warmest on record, 73.5. Previous record 72.9 in 1967.

September tied for warmest on record, 67.6. 1994 also saw 67.6.

October was warmest on record by a full degree, 60.1. Previous record 59.1 in 1901.

December was 5th warmest at the airport location but failed to reach the top 10 when the entire POR is considered. Downtown it was not a top 5 warm December but fell a few tenths shy of 5th place. May was also on the warm side this year by a fair margin but fell well short of a top 10 warm May.

 

August-October 2014 is one of only two consecutive three-month spans to have seen top 10 warmth in each month. The other was January-April 1934 which was the longest period of anomalous warmth in recorded history for Portland. The 1934 span has two top records still intact and two which are 2nd place at present.

 

January 1934 - 2nd warmest on record

February 1934 - Warmest on record

March 1934 - Warmest on record

April 1934 - 2nd warmest on record

 

Where are you getting your numbers?

 

For Downtown Portland:

 

Warmest August: 1967 with a mean of 75F

 

Warmest September: 1974 with a mean of 69F

 

Warmest October: 1952 with a mean of 62F

[IbrChris]

Where are you getting your numbers?

 

For Downtown Portland:

 

Warmest August: 1967 with a mean of 75F

 

Warmest September: 1974 with a mean of 69F

 

Warmest October: 1952 with a mean of 62F

I use downtown data for 1872-1939 and PDX data for 1940-2014.

 

Oct 1952 was 58.6 at the airport (a full 1.5 cooler than 2014)

Aug 1967 was 72.9 at the airport (0.6 cooler than 2014)

Sept 1974 was 67.3 at the airport (0.3 cooler than 2014)

 

Downtown data after 1974 was taken at KGW studios which I find a fairly unsatisfactory station in terms of siting, but it is useful for comparison to the older downtown data. Much of the earlier downtown data was taken well above the 2 meter standard height, often on top of buildings.