July average maxima in San Francisco coolest since 1971

Wasn’t 1971 cooler (62.68) than 1970 (63.13), which would require another caption for the entire entry?

REPLY: yes a typo in the title, fixed. Thanks Anthony

Now let’s rank the values you posted by year (I would love to have the full dataset, but this is more than enough):
1914 62.06
1919 62.9
1920 64.1
1924 64.71
1927 64.77
1928 64.42
1930 65.06
1937 64.39
1938 63.32
1939 64.42
1941 64.94
1942 64.68
1943 63.9
1944 61.55
1945 64.13
1948 64.87
1949 63
1950 63.03
1951 61.13
1952 63.94
1953 63.87
1955 62.52
1956 61.9
1958 63.55
1960 63.39
1962 60.52
1964 64.61
1965 61.94
1966 63.81
1967 63.94
1968 63
1969 63.29
1970 63.13
1971 62.68
1973 64.32
1975 64.52
1976 64.23
1977 64.94
1978 64.06
1980 64.87
1981 63.71
1982 63.32
1999 64.55
2000 63.84
2010 63.1
So out of the 45 coldest years (which is probably 1/3 of the dataset) only 5 (1/9th of them) are in the last 30 years….

Question: how much different was the temperature when the heavy smogs of the ’70s prevailed, to the cleaner, less smoggy days today?

From the link to Snopes.com: It may be California, and it may be lovely, but the wind can be vicious, and those summertime temperatures can be disappointing bordering on “in danger of freezing if one doesn’t keep moving.”
The alarmists will shortly need to be moving from a canter into a gallop…

Anthony, trivial but Jan overlooked 1971 (#8) as “coolest July since”.
REPLY: No that’s an error on my part in copy paste, and writing the title, Fixed thanks. -A

My read of the above table is that it’s the coolest since 1971, position 8 on the list, since 1970 was a bit warmer than 2010. When one says “coolest since…” it refers to time when it was colder. But you, Anthony, have shown a year that was a bit warmer than 2010.
REPLY: Typo in highlight, thanks for pointing it out. I shouldn’t edit when I’m tired. -A

I’m NOT holding my breath waiting on the MSM or the Weather Channel to report this, blue is just not my color.

But — but — but — it was the 28th *warmest* July evah!
*koff*
The post above is one reason I like to see the actual temperatures, rather than a graph of anomalies. When the difference between the warmest and the coolest is less than four and a half degrees, it puts some perspective back into the discussion.

Nice bit of cherry picking.
REPLY: Noting records or events in context of records is not cherry picking, they are singular points. Either they exceed +/- previous records or they don’t. For example:

RECORD EVENT REPORT
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
430 AM PDT FRI JUL 10 2010
…ONE RECORD LOW MAXIMUM TEMPERATURE SET AGAIN YESTERDAY…
YESTERDAY WAS ANOTHER IN A STRING OF VERY COOL EARLY JULY DAYS
IN SOUTHWESTERN CALIFORNIA…ESPECIALLY AT THE IMMEDIATE COAST
OF LOS ANGELES WHERE A NEW DAILY RECORD LOW MAXIMUM TEMPERATURE
WAS RECORDED YESTERDAY.
A RECORD LOW MAXIMUM TEMPERATURE IS SET WHEN THE HIGHEST
TEMPERATURE ON A CERTAIN DATE IS COOLER THAN ON THAT DATE
IN ANY PREVIOUS YEAR.
THE FOLLOWING IS A RECORD SET OR TIED FOR JULY 9TH…ALONG
WITH THE OLD RECORD AND THE YEAR IN WHICH IT OCCURRED.
STATION NEW OLD
RECORD (2010) RECORD YEAR
LOS ANGELES AIRPORT 67 68 1926

But you can be certain that if it was the warmest July SFO maxima since 1971 it would be screamed about it headlines.
– Anthony

REPLY: Typo in highlight, thanks for pointing it out. I shouldn’t edit when I’m tired. -A

Well Anthony, you are the hero who blogs in his spare time even when he is tired. I have my own blog but when I’m tired I just say: “I’ll leave it till tomorrow” and two to three weeks later it gets done!
Second, I notice that we skeptics air our dirty laundry in public — if we make a mistake it is out in the open and so is the retraction. Unlike AGW. Kudos…

Something in the Bee this last Sunday related to this;
Mild weather, summer breezes keep ozone low

No sweat. Breathe easy.
Mild temperatures in the Sacramento region this summer have meant something more than freedom from perspiration.
Cool weather has brought better air quality, and fewer respiratory problems for those who suffer when ozone levels rise.
The Sacramento Metropolitan Air Quality Management District has declared just two “Spare the Air” days this summer – days when air quality reaches unhealthy levels.
Every other year this decade, officials have declared at least five by this date, and sometimes as many as 13.
This year’s two dates, July 16 and July 17, also came much later in the year than is typical.
“We’ve had a really wonderful summer for people who are troubled by bad air,” said Christina Ragsdale, spokeswoman for the district.
The quality of the air is related to the heat, or lack of it.
Ozone forms when a soup of volatile organic compounds – a variety of gases – is cooked by high temperatures and oxygen bonds into three-atom molecules: ozone.
That’s why in July 2006, when Sacramento had a record 11 days in a row with highs above 100 degrees, it had nine “Spare the Air” days in just those 11 days.
Temperatures have reached 100 degrees or higher six times this July in Sacramento, but those days have been spread out over the month.
Another key factor has helped prevent the buildup of ozone this year.
“Even when it’s been warm, we’ve had a lot of wind,” Ragsdale said. The wind slows ozone production.

How do you like “Spare the Air” days as climate marker?
See the graphic Fewer Bad-Air Days for Sacramento. Annual total bad air days by year from 2001-2010.

GM says:
August 2, 2010 at 9:54 pm
Now let’s rank the values you posted by year (I would love to have the full dataset, but this is more than enough):
…So out of the 45 coldest years (which is probably 1/3 of the dataset) only 5 (1/9th of them) are in the last 30 years….
______________________________________________________________________-
It is a coastal city , influenced by the ocean so what is the pacific ocean doing?
SEE Graphs
Prediction:
graph 2
However the San Francisco temperature record seems to exhibit a heat island effect when compared to the records of less populated areas.
Yosemite Park headquarters
Independence
Electra

Over here in Perth, Western Australia, the month of July had average minimum daily temperatures of 5.9C as against the long term average minimum for July of 7.8C, almost 2 whole degrees less! Mean maximums were “normal” with the July just gone averaging 18.2C compared to long term average of 18.3C.
Similar for June 2010 – average min of 7.1C compared to long term average of 8.4C but average maximum was 19.0C compared to long term average of 19.3C.

What would the real temperature be if a correction was made for the UHI?

Don E: that sounds like west of Scotland weather. Or do I mean climate?
Anthony: Brits read this and don’t assume anything, least of all units of measurement. Please specify your units, °F in this case. We’d like it even better if you could summon the energy to be ‘global’ about this and use °C (maybe as well rather than instead of). More work, I know. Just asking.

Dang spellcheck, meant climatic … jeez.

E.M.Smith says:
August 3, 2010 at 1:10 am
I’ve been saying it was cold here…
@GM: If you had a point, a long list of numbers showing this year was cold, and about as cold as other Way Cold years, didn’t seem to say much other than: Its COLD.
Oh, and I’m sure we’ll have LOTS more cold years going forward now that the PDO is flipped back to ’70s mode’ and the sun is on vacation.

The point of the post was to show that the original post was dishonest, which should be obvious to
[snip — behave politely or take it elsewhere ~ ctm]
because I have figured our a long time ago that there is nothing to gain from that as the only weapon I as a scientist have are facts and logic and it is impossible to argue with facts and logic with people who do not see any value in those. And I am not a climatologist myself but I happened to come here by chance and I was about to scream in horror when I saw that post, so obvious is the hole in the argument. I can imagine how a climatologist would feel…
Anyway, yes, that’s the current temperatures in San Francisco maybe relatively cold. And what this means is precisely that – it’s cold in San Francisco and it hasn’t been very hot in Southern California where I am either . Which is only relevant to the argument about global climate change as far as the contribution of California to the global annual temperatures goes. Which is very small.
The same is true for the US as a whole. Another recent post was showing the map of the US and the how “cold” it is in the southern parts – that the northern part of the US are hotter than usual and that the whole of Canada is much hotter than usual was left out. Not that those on their own prove that there is warming, but this blog seems to only focus on the colder than usual regions, I wonder why.
The worst thing is that these same tactics have been beaten down to death repeatedly, yet nobody seems to listen…

The only logical explanation is that the State of California’s efforts to reduce CO2 emissions are working! NOT.

“The whole of Canada” was most certainly not “hotter” than usual. Unless, as some Torontonians seem to believe, Toronto is suddenly the whole of Canada.
It’s COLD in the west. Stupidly cold. We’ve had a few days with high peak temps that are rapidly cooled in the late afternoon. We’re a month late on our usual weather patterns. We are missing summer, and this bodes ill for the winter to come.
Whatever you’re yapping about (GM) that’s getting you snipped, your accuracy certainly seems to be lacking as well. I’m not hearing anyone in BC, Alberta, Saskatchewan or Manitoba talking about “hot”, and that’s half the country.

Codetech: We in Toronto do not believe we are the whole of Canada—we are the centre of Canada!
Here we’re having an average summer, and much better than last year. A few hot days, some humidity, generally just the way I remembered them. If NOAA or GISS shows that it was abnormally high in July, I’ll know the fix is definitely in.

I think that the most accurate thing that can be said from the (partial) dataset is that the average July temperature for San Francisco is in the range of 60-65 deg. F and has been in that range for a century.

eddieo 5.25am
Scotland, yes.
How did u guess?
Been wondering why global warming wasn’t noticeable here. With WUWT now I understand.
Huth

GM,
you are new here. so, i understand your consternation.
everyone here DO believe weather is not climate. you will find that out, as you read the posts here for a while.
this post does not stand on it’s own. It is part of a complaint about the MSM. MSM has been talking up “hot Moscow”, and ignoring “Cold Siberia”. and MSM did not talk about “cold South America”, where there were snow on the beaches of Northern Argentina, which generally does not see snow.
MSM has been making a big deal out of Hot NY/Wash.DC/Phila,PA etc. but ignoring cold SanFran etc. That is what this post was about.
Context , my friend, is quite important

E.M.Smith: August 3, 2010 at 1:10 am
I use C, F, K, and even R sometimes.
[break]
Put another stick 15 degrees away (you can do that without advanced tools…).
Fifteen degrees C, F, K, or R?
Umm — it’s going it hurt, isn’t it…?

phlogiston said :’I doubt any of us will still be alive the next time there is a “hottest year on record”.’
Don’t be silly. 2011 will be the hottest year on record. And then it will be 2012, and then 2013…

NoAstronomer says:
August 3, 2010 at 8:11 am
Don’t be silly. 2011 will be the hottest year on record. And then it will be 2012, and then 2013…
===========================================================
I predict it will be the hottest right before every election cycle.

i have been following the cool summer thing, but i just got back from the eastbay and was shocked at how cool it was even there, beyond the fog.
in dublin it was barely 80F and quite chilly at night. i believe that must be 20F below normal!
kind of like our april, may and june over here in the eastern sierra.
i did not check the actual temp but the central valley did not seem so bad either, it was warmer in the foothills. the cool ocean air is really doing a job.

Try to live each and every minute of this summer……you will miss it!

Enneagram says:
August 3, 2010 at 11:28 am
“That’s because there is a new neighbour in California, cold follows him wherever he goes….”
You’re right. And the cold from Antarctica already tried to reach up to Mexico… Cancun is coming, and probably Al wants to visit…

I’m sure I was taught that if you could remember Frisco in ’71, you weren’t really there.

Just returned from visiting family and friends in Southern California. North Orange County beaches (Huntington & Bolsa Chica) were very cool in the mornings with overcast/cloudy skies that didn’t burn off at all. Water temp was a chilly 63 degrees.
My friends and I have surfed southern California beaches for the last 30+ years and don’t remember the ocean being this cold so late in the season. Cloudy/overcast skies are typical “June gloom” along the coast into early July. This year the “gloom” has lasted into late July/early August.