Interesting Weather Stats Any Season, Anywhere (november, Vancouver, Pittsburgh, Mississippi)

[Glacierx]

Fort St. John, BC recorded 22.8 cm of snow on October 1st this year. That's the most snow ever recorded in a single day before October 4th. Interestingly, the October 1st to 5th, 1957 was the biggest snowfall to ever hit the city with over 78 cm/28.5 inches of snow falling.

[Jakobsli]

And the same in Norway: 1052.7 hPa at Otta (valley town about half way between Oslo and Trondheim) - new all-time high pressure for October. Old record was 1044 hPa from 1896.

Otta in Sel: https://en.wikipedia.org/wiki/Sel


Back to September: Svalbard Airport /Longyearbyen (High Arctic) recorded 24-hr mean 4.1C / 39.4F in September, 3.7C above the 61-90 normal. Last month below normal in Longyearbyen was November 2010 - now 70 consecutive months above normal.

[Glacierx]

Hottest Julys ever recorded in Canada:

1) Morris, Manitoba in 1936 = 26.9C (80.4F) [mean average temperature]
1) Pelee Island, Ontario in 1916 = 26.9C (80.4F)
3) Wallaceburg, Ontario in 1926 = 26.8C (80.2F)
4) Spences Bridge, B.C. in 1906 = 26.6C (79.9F)
4) Brockville, Ontario in 1921 = 26.6C (79.9F)

[Jakobsli]

October 5th: Air pressure reached 1054.3 hPa, new October record for Norway, and again at Otta in Sel.
Record for any month still stands at 1061 hPa.

October 7th: Temperature at Svalbard Airport / Longyearbyen and at Svea reached 10.1C / 50F. First ever recording at or above 10C / 50F on Svalbard in October.

These two events are off course somewhat related. The very strong High over Scandinavia keep blocking the lows, and forcing these Atlantic lows to go far north into the Arctic.

[Jakobsli]

Today October 11th is exactly 11 years since Molde recorded 25.6C / 78.1F, new national high for October in Norway.

Same day Høylandet recorded 25.4C / 77.7F. Høylandet is 64 37 N (!)

[Steelernation71]

Rochester had a 146 day streak of 60+ highs. A cold front ended this streak on Sunday, just 2 days short of tying the record.

Longest streaks of 60+ highs
1. 1995 148 days May 9 to October 3
2. 2016 146 days May 16 to October 8
3. 1896 142 days April 26 to September 18
4. 1900 141 days May 20 to October 7
5. Various years with 139 days

We also set records for most consecutive 70+ highs with 102, most 75+ with 78 and most 80+ with 35.

Highs 70+:
1. 2016 102 days June 14 to September 23
2. 2002 101 days June 18 to September 26
3. 2005 88 days June 20 to September 15
4. 1959 84 days June 19 to September 10
5. 1939 83 days June 14 to September 4

Highs 75+:
1. 2016 78 days June 15 to August 31
2. 1980 52 days July 7 to August 27
3. 1939 50 days July 17 to September 4
4. 1988 47 days July 2 to August 17
5. 1995 45 days July 10 to August 23

Highs 80+:
1. 2016 35 days July 17 to August 20
2. 1921 29 days June 20 to July 18
3. 2011 27 days July 1 to July 27
4. Various years with 24 days

The 75+ one is amazing, this year had a streak 26 days and 1.5 times longer than the second longest.

[Glacierx]

Cool, we must be related since my aunt and uncle (and cousins) lived in Rochester for most of their life.

Anyway, as for an interesting stat, this past month was the first September in 12 years in which the temperature in BC did not reach 32C/90F.

[srfoskey]

This is more of a climate stat, but Rapid City is snowier on average in November, December, February, March, and April than in January.

[Steelernation71]

Originally Posted by Steelernation71

Rochester had a 146 day streak of 60+ highs. A cold front ended this streak on Sunday, just 2 days short of tying the record.

Longest streaks of 60+ highs
1. 1995 148 days May 9 to October 3
2. 2016 146 days May 16 to October 8
3. 1896 142 days April 26 to September 18
4. 1900 141 days May 20 to October 7
5. Various years with 139 days

We also set records for most consecutive 70+ highs with 102, most 75+ with 78 and most 80+ with 35.

Highs 70+:
1. 2016 102 days June 14 to September 23
2. 2002 101 days June 18 to September 26
3. 2005 88 days June 20 to September 15
4. 1959 84 days June 19 to September 10
5. 1939 83 days June 14 to September 4

Highs 75+:
1. 2016 78 days June 15 to August 31
2. 1980 52 days July 7 to August 27
3. 1939 50 days July 17 to September 4
4. 1988 47 days July 2 to August 17
5. 1995 45 days July 10 to August 23

Highs 80+:
1. 2016 35 days July 17 to August 20
2. 1921 29 days June 20 to July 18
3. 2011 27 days July 1 to July 27
4. Various years with 24 days

The 75+ one is amazing, this year had a streak 26 days and 1.5 times longer than the second longest.

Our streak of 55+ highs ended yesterday. Not quite as impressive but still long.

1. 1982 170 days 4/29 to 10/15
1. 1879 170 days 5/07 to 10/23
3. 1995 168 days 5/01 to 10/15
4. 2007 166 days 4/29 to 10/11
5. 1896 163 days 4/12 to 9/21
6. 2012 161 days 4/29 to 10/06
7. 1944 160 days 5/08 to 10/14
8. 1955 159 days 5/10 to 10/15
9. 2016 158 days 5/16 to 10/20

[mianfei]

Originally Posted by srfoskey

In Raleigh in October 1919 the temperature never got below 48°F (9°C). The average low drops below 48 on October 21, however. An average October drops to 34.

That month was a classic analoguous to January 1937, January 1950, November 1985 or July 1993 – record cool in the Northwest, record hot in the southeast, with a belt of record heavy flooding rainfall in between over the Mississippi basin.

The rainfall was less heavy than those later months but still record-breaking in large areas, and the transition from “very hot” to “very cool” as rapid as in November 1985.

One interesting thing I noticed a year ago about October 1919 is that owing to the record heat in the southeast, the average number of cooling degree days (degree days above 65˚F) for the contiguous United States during October 1919 remains the highest on record for any October up to 2015 – despite the fact that averaged over the whole nation the month was substantially cooler than average due to the record cool in the West! This is naturally because when calculating cooling degree days the hot weather is the southeast was not cancelled out by the cool in the northwest where daily means above 65˚F are rare in normal or even hotter-than-average Octobers, although maxima substantially hotter than that can easily occur in the Montana Plains due to chinook winds. The maps comparing the total cooling degree days for October 1919 with that of October 1947 – which was a genuinely hot month from coast to coast with the 4th and 5th having estimated nationwide maxima above 90˚F – illustrate this well although I wish I could have formatted them better.