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July 2025 Obs/Disco ... possible historic month for heat


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13 minutes ago, TheClimateChanger said:

Wow! Can't wait to see what this looks like at the end of the week. One thing I find odd the rankings in some of the biggest cities aren't as impressive: Boston (23), New York - Central Park (15), DC (11). The hottest anomalies seem to be in places where nobody lives, like Elkins and Clarksburg, W. Va. (both 1st place). The UHI theory would predict the opposite? Not sure what is going on there.

It seems some of these radiational cooling hotspots are just not radiating like they used. This very dense, vaporous atmosphere is wreaking havoc on overnight cooling. Much denser and vaporous than when I was a child.

VoIKse0.png

Even ORH with a huge site discontinuity (elevation gain) is in 14th place, while Boston is 23rd place (and tied with 2 other years). And pretty much everywhere else is well in the top ten. Makes no sense... wonder if someone could sneak a thermometer in there to verify?

Anyone that keeps personal records - are you seeing this summer as cooler than a number of recent years like the official tally at Logan Airport, or is this one of your hottest?

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9 minutes ago, TheClimateChanger said:

Even ORH with a huge site discontinuity (elevation gain) is in 14th place, while Boston is 23rd place (and tied with 2 other years). And pretty much everywhere else is well in the top ten. Makes no sense... wonder if someone could sneak a thermometer in there to verify?

Anyone that keeps personal records - are you seeing this summer as cooler than a number of recent years like the official tally at Logan Airport, or is this one of your hottest?

Do you want them to be hotter?  You sound so disappointed.

The ones running lower anomalies are on the ocean or closer to maritime air.  That has less variance.  They don’t radiate anyway.

Its ok if it’s not an absolute furnace everywhere.

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7 minutes ago, powderfreak said:

Do you want them to be hotter?  You sound so disappointed.

The ones running lower anomalies are on the ocean or closer to maritime air.  That has less variance.  They don’t radiate anyway.

Its ok if it’s not an absolute furnace everywhere.

I just want the correct numbers. Love it, or hate it, Boston is the place the local weatherperson will use for verification purposes.  Local farmers and utility operators need the correct data. If it is local sea breezes keeping it cooler, then it shouldn't be given any special significance.

I mean just look at, say, Mount Washington. Population literally zero. You get a completely different look.

hwv14sk.png

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5 minutes ago, TheClimateChanger said:

I just want the correct numbers. Love it, or hate it, Boston is the place the local weatherperson will use for verification purposes.  Local farmers and utility operators need the correct data. If it is local sea breezes keeping it cooler, then it shouldn't be given any special significance.

I mean just look at, say, Mount Washington. Population literally zero. You get a completely different look.

hwv14sk.png

First order station. Logan’s Climo takes all that into account. So for Logan it hasn’t been all that crazy given how the pattern has favored sea breezes. When you take a bigger sample size and look at spots further inland you may see a different story.

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Just now, CoastalWx said:

First order station. Logan’s Climo takes all that into account. So for Logan it hasn’t been all that crazy given how the pattern has favored sea breezes. When you take a bigger sample size and look at spots further inland you may see a different story.

The map I posted previously was exclusively ThreadEx sites with PORs 100-150+ years. I just used Mount Washington as an illustrative example. CON has a longer POR than BOS and is top 5.

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1 minute ago, TheClimateChanger said:

The map I posted previously was exclusively ThreadEx sites with PORs 100-150+ years. I just used Mount Washington as an illustrative example. CON has a longer POR than BOS and is top 5.

That doesn’t change the fact that the pattern has favored sea breezes at Logan though. The high temp anomalies have been less vs inland. 

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16 minutes ago, CoastalWx said:

Also high dews mean interior areas don’t radiate which also aids in bigger anomalies. Cities don’t radiate anyways so it doesn’t matter too much what the dews do.

I guess, but even Blue Hill Observatory in eastern Massachusetts (high quality, long POR) has this as 3rd hottest start to summer behind only 2024 & 1999.

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9 minutes ago, TheClimateChanger said:

I guess, but even Blue Hill Observatory in eastern Massachusetts (high quality, long POR) has this as 3rd hottest start to summer behind only 2024 & 1999.

Just a theory, but I suspect this more closely aligns with the conditions for most of SNE.

qqEW1K0.png

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1 hour ago, TheClimateChanger said:

I just want the correct numbers. Love it, or hate it, Boston is the place the local weatherperson will use for verification purposes.  Local farmers and utility operators need the correct data. If it is local sea breezes keeping it cooler, then it shouldn't be given any special significance.

I mean just look at, say, Mount Washington. Population literally zero. You get a completely different look.

hwv14sk.png

Maybe we are all just used to it because we’ve seen it for decades.  No one on here will say BOS is indicative of the entire New England area… we usually note it in winter.

None of this seems earth shattering that BOS is a different climate, it’s been like that for decades.

Just like if we were in a pattern with cooler air aloft and in the north, no one is using MWN as a judge of the SNE climate either.

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1 hour ago, TheClimateChanger said:

I guess, but even Blue Hill Observatory in eastern Massachusetts (high quality, long POR) has this as 3rd hottest start to summer behind only 2024 & 1999.

Blue Hill isn’t prone to the seabreeze like Logan.

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