LibertyBell

hmmm AI says that Nassau County is part of the micronet, the closest one to me is in Howard Beach lol AI Overview Yes, Nassau County is part of the New York City Micronet, a network of weather stations providing real-time data. This network is managed by the New York State Mesonet and provides critical information for various purposes, including utility operations, climate change monitoring, and power infrastructure planning. The New York City Micronet is comprised of 22 weather stations and is maintained by the New York State Mesonet. This network is designed to provide real-time weather data, which is particularly useful during high-impact weather events. The data collected by the Micronet is also used for long-term climate change monitoring and for understanding the needs of the power infrastructure.

https://www.nysmesonet.org/networks/nyc We need one of these for Nassau County too!! The NYC Micronet The New York City Micronet is a dense network of 23 weather stations, 18 owned by Consolidated Edison Company of New York, Inc., and 5 owned by the NYS Mesonet. Collectively, the Micronet provides critical real-time weather data during high-impact events for utility operations and long-term data for monitoring climate change. These data are essential for understanding short to long-term power infrastructure needs. The New York City Micronet was designed and installed by the New York State Mesonet, and the Mesonet continues to maintain network operations. Ten sites are located at ground level, eleven sites are deployed on roof tops, and two sites are located on a pier. A majority of Micronet stations measure air temperature, relative humidity, precipitation, and pressure. A mix of stations also measure wind speed and direction, solar radiation, snow depth, soil temperature and moisture, surface (skin) temperature, water temperature, and water level. Micronet data are collected every 5 minutes, quality controlled, archived and made available to users in real-time. The 18 Con Edison sites and 5 NYS Mesonet sites located in NYC are shown in the data display below.

what about July 2010?

thats not even hot.... wait til 1 pm lol

http://nysmesonet.org/ It only shows one spot per county, Rob =\ For Nassau County it's only Wantagh, I was hoping they had one in SW Nassau County too, in either Lynbrook or Valley Stream.

oh New York State Mesonet, so this would cover all of Nassau County too?

Is there any way to access their data on wunderground or a different site that has a similar format? I would love to see it in real time!

That is a pretty large distance. I guess there really is no way to use one number to describe the city. We don't even have any sensors in Staten Island, Brooklyn or The Bronx, so no way to know if the 4 official stations we have properly cover the weather in those boroughs (we can always use wunderground, but I've found quite a few of those run too hot. maybe they're not properly sited.)

But why are LGA mins elevated compared to the Park and JFK (both in the summer and winter), is it because UHI affects them more than the more natural environment around the Park and JFK?

I think he meant JJA vs June 20 - Sept 20 our weather lines up with astronomical summer not met summer. At least the first three weeks of September typically have summer weather.

Not a single cloud in the sky here.

How much does population density have to do with this? I've been to interior Queens and it's always hotter than the surrounding area, I put it down to increased traffic and higher population density plus those subway vents are always emitting hair dryer levels of heat ugh. It's hotter in the summer AND in the winter. It doesn't feel natural, but artificial because of the environment there.

why does LGA consistently run warmer on overnight lows and almost always are the last ones to get their first freeze? I feel like it is a much more artificial climate than either the Park or JFK, who get their first freezes before they do.

that might be why July is our hottest month, similar to how January might be our coldest month because of that lag.

I realized I actually confused it with the equinox/equilux lol. I read that fascinating article I just posted last year, our equal day / equal night (equilux) is typically around the 26th of March and September.

I wonder if space exploration will spur advancements in other areas, including climate and weather science (this has happened before.) Perhaps this will encourage greater investment. If we establish space colonies, weather prediction will become important on these worlds too

https://www.timeanddate.com/astronomy/equilux.html This article explains why day and night aren't equal on the equinox too. Equinox—Close, but Not Quite Equal Many of us think that an even balance of day to night happens during an equinox. After all, the word translates as “equal night.” So, a little confusion is understandable. But there’s a subtle time difference between an equinox and an equilux. Approx. equilux dates Latitude March September 60° North Mar 18 Sep 25 55° North Mar 17 Sep 25 50° North Mar 17 Sep 25 45° North Mar 17 Sep 25 40° North Mar 17 Sep 26 35° North Mar 16 Sep 26 30° North Mar 16 Sep 27 25° North Mar 15 Sep 27 20° North Mar 14 Sep 28 15° North Mar 12 Sep 30 10° North Mar 8 Oct 4 5° North Feb 24 Oct 17 Equator No equal day and night 5° South Apr 14 Aug 29 10° South Apr 1 Sep 10 15° South Mar 28 Sep 14 20° South Mar 26 Sep 16 25° South Mar 25 Sep 17 30° South Mar 24 Sep 18 35° South Mar 24 Sep 19 40° South Mar 23 Sep 19 45° South Mar 23 Sep 19 50° South Mar 23 Sep 20 55° South Mar 23 Sep 20 60° South Mar 22 Sep 20 Equal Light “Equilux” is drawn from the Latin terms for equal (equi) and light (lux). So how do we find out which dates fit the description and qualify as truly equal day and night? To measure the day/night split in a 24-hour span, astronomers use common definitions of sunrise and sunset. Simply put, sunrise is defined as when the first bit of the Sun’s disk appears and sunset is when the last bit of the disk vanishes. Calculating the length of day between those two moments, we find that two dates every year reach equilux in most latitudes. In the Northern Hemisphere, these happen a few days before the spring equinox (vernal equinox) and a few days after the autumn equinox. South of the equator, it's the other way around. A location's equilux dates depend on the latitude (see table). Locations on or near the equator never experience equal day and night. Imagine a Disk But why aren’t day and night of equal length at an equinox? To answer that question, it helps to think of the Sun in two different ways—as a disk and as a point. To pinpoint the days of equilux, the Sun is considered a disk, and we measure daytime from the first appearance of the Sun’s disk to the last bit slipping below the horizon. A Point at the Center of the Sun To calculate an equinox, on the other hand, the Sun is thought of as a single point, set in the center of the disk. An equinox occurs when the subsolar point—the spot on the Earth directly beneath the Sun—crosses the equator, equally straddling the Southern and Northern Hemispheres. On those days, the center point of the Sun indeed rises and sets 12 hours apart. But since we measure sunrise and sunset by thinking of the Sun as a disk, the top edge of the Sun appears a little earlier and sets a bit later than the center point. This difference creates a few extra minutes of daylight on the date of an equinox at most latitudes.

This is one of the reasons it doesn't match up with the solstice most of the time: https://www.timeanddate.com/news/astronomy/earth-fast-rotation-2025 Earth Will Spin Unusually Quickly in July and August Since 2020, Earth has notched up unprecedentedly short days midway through the year. It will happen again in 2025 around July 9, July 22, and August 5. Surprise! In recent years, Earth has been spinning a bit more quickly. Scientists are unsure why. ©NASA’s Goddard Space Flight Center Earth’s Variable Spin Speed Our planet is an almost-but-not-quite-perfect timekeeper. Every day, from the point of view of the Sun, Earth completes one full rotation on its axis in exactly 86,400 seconds, give or take a millisecond or so. 86,400 seconds is another way of saying 24 hours. A millisecond (ms) is 0.001 seconds—considerably less than a blink of an eye, which lasts around 100 milliseconds. The only way to measure these tiny day-to-day variations in Earth’s spin speed is with atomic clocks, which were introduced in the 1950s. The number of milliseconds above or below 86,400 seconds is known as length of day (LOD). Look it up: How long was yesterday? Earth Speeds Up Until 2020, the shortest LOD ever recorded by atomic clocks was -1.05 ms. This means that Earth completed one rotation with respect to the Sun in 1.05 milliseconds less than 86,400 seconds. Since then, however, Earth has managed to shatter this old record every year by around half a millisecond. The shortest day of all was -1.66 ms on July 5, 2024. Earth is expected to get close to this again in 2025 around July 9, July 22, and August 5. From the archive: Earth in a hurry (2020) The following table shows the shortest LOD in every year for the past five years, together with three possible dates for the shortest LOD in 2025. Shortest Length of Day, 2020–2025 Year Date LOD 2020 July 19 -1.47 ms 2021 July 9 -1.47 ms 2022 June 30 -1.59 ms 2023 July 16 -1.31 ms 2024 July 5 -1.66 ms 2025 July 9 -1.30 ms (prediction) 2025 July 22 -1.38 ms (prediction) 2025 August 5 -1.51 ms (prediction) Sources: timeanddate.com, IERS, USNO. Estimates are based on observations and models, and include systematic corrections and smoothing. Why Three Possible Dates? Short-term variations in LOD are affected by the orbit of the Moon. Our planet spins quicker when the Moon’s position is far to the north or south of Earth’s equator. The Moon will be around its maximum distance from Earth’s equator on the three possible dates for the shortest LOD in 2025. The following links for our Moon Light World Map show the Moon’s position—indicated by the Moon symbol—at 12:00 UTC on July 9, July 22, and August 5. Why Is All This Happening? Why has Earth accelerated, and when will it slow down again? These are difficult questions. Long-term variations in Earth’s spin speed are affected by a long list of factors that includes the complex motion of Earth’s core, oceans, and atmosphere. “Nobody expected this,” says Leonid Zotov, a leading authority on Earth rotation at Moscow State University. “The cause of this acceleration is not explained.” Most scientists believe it is something inside the Earth. Ocean and atmospheric models don’t explain this huge acceleration. Leonid Zotov

and I guarantee that NYC will be a lot closer to JFK than it would be to the Northern Bronx ;-) The Northern Bronx is like a lower Hudson Valley climate to me I remember 2/5/2010 we had 1.5 inches here and Staten Island had 6 inches. That's why we have snowfall ranges, for that storm 1-6 inches would have been a far range for the southern half of the city.

I think moving half an hour ahead is a fair compromise.

The longest day isn't really on the summer solstice, it's different days in different places depending on your latitude and some other factors. For us it's usually June 26th.

Possibly, but otherwise these weather *wars* will continue. If we could come up with a single number to describe the city it would dampen down biases any one individual station might have (NYC poorly sited, LGA/EWR running too hot, JFK seabreeze interference, etc.)

Do you think at least partially transferring the NWS/NOAA functions to private ownership would help matters? Perhaps we can get a rich billionaire who cares about climate and weather to fund a supercomputing system sufficiently powerful to run 4dVar? I'm being ironic, I don't think any of them care, but the funding has to come from somewhere and we have a few billionaires funding space trips so why not get them to invest in climate and weather too? Note how NASA has partnerships with these private space companies, maybe NWS and NOAA need to do the same thing? Public funding only gets you so far and we are in the era when people want to spend less and save more, so maybe we are on the way to privatizing everything now and shifting the burden to those who can afford it....

The solution is to average out NYC, EWR, JFK, LGA and then you get the full of range of weather in New York City (which covers 5 boroughs). I believe LGA runs too hot now, look at how elevated their lows are compared to everyone else and it has the highest concentration of traffic now, which is much worse now than it was during the 30s-50s period when NYC was hotter (as was JFK.)

tomorrow is the first day of summer around 10:30 am? Just in time!