Yes, It Really Does Rain More on Weekends

Jul 03, 2026 17:06 · 7:38 · English · Whisper Turbo · 2 স্পিকার

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for many of the years that i lived in boston the springtime weeks were

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full of clear sunny skies but every single weekend provided

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soggy miserable weather what gives is it just my imagination that

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every single weekend it seems to rain or were the rainy days more noticeable

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because they were interrupting my weekend plans did a weather god curse

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the northeast united states or

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is it some weird meteorological phenomenon funnily enough it's

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that last thing weather in new england can be oddly punctual

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so here's the science of the rainy weekend curse rain

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in the spring is no surprise

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to north americans with april showers bring may flowers and everything but

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in 2023 2024

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And 2025,

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Boston,

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New York,

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and the rest of the Northeastern US were stuck with beautiful sunny work weeks and

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overwhelmingly rainy weekends.

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In both 2024 and 2025,

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Boston received stretches of at least six consecutive rainy

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weekends in the spring.

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And from January through June,

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there were far more weekends with rain than without.

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2023 was an especially wet year,

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bringing record rainfall all over the Northeast.

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And by October,

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in New York and Boston,

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only 12 out of 42 of the year's weekends had been sunny.

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That's rain during...

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80 percent of weekends at some point you start to think that this can't just

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be a coincidence so meteorologists took a deeper look at the weather patterns

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S… Speaker 2 (Yes, It Really Does Rain More on Weekends)

trapping the northeast indoors every weekend it's easy to forget that air is a

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fluid and that it has mass we live our whole lives in it and move through

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S… Speaker 2 (Yes, It Really Does Rain More on Weekends)

it so effortlessly yet it's constantly pressing down on us and swirling

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about air is subject to the laws of fluid dynamics on a planetary scale

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S… Speaker 2 (Yes, It Really Does Rain More on Weekends)

those effects can really add up we experience these effects as weather and

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meteorologists

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events are all driven by differences in temperature and pressure throughout

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the atmosphere.

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The jet streams have an especially big impact.

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S… Speaker 2 (Yes, It Really Does Rain More on Weekends)

You might have heard your airplane's pilot mention the jet stream.

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It's like a river of fast -moving air that travels from west to east across

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the globe, but it affects way more than just your flight time.

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S… Speaker 2 (Yes, It Really Does Rain More on Weekends)

Jet streams exist because of fluid mechanics.

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S… Speaker 2 (Yes, It Really Does Rain More on Weekends)

The equator gets more sunlight than the poles do,

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which means the air is warmer around the Earth's middle.

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As the air gets warmer,

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it expands and rises.

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creating a low pressure zone.

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On the other hand,

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the cold,

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dense air at the poles forms a high pressure zone.

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Air rushes from the regions of high pressure into the regions of low pressure.

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On a global scale,

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this means that cold air from the poles floods toward the equator and

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light warm air drifts poleward above it.

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The cold air packets warm up at the equator,

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rising to replenish the low pressure zone,

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and the warm air packets cool down at the poles to sustain the high

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pressure zone.

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This sets up a cycle of air constantly moving from the equator to poles

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and back again.

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But don't forget,

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the Earth is also rotating.

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Air rotates with the Earth,

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constantly getting dragged to the east.

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Because of this,

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the rising air from the equator never actually makes it to the poles.

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The Earth's rotation,

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plus all the bumpiness of the Earth's surface,

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causes the circulation pattern to be split into three different circulation cells.

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From the equator to about 30 degrees north or south,

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we have the Hadley cells.

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beyond that are the mid -latitude cells or Pharrell cells,

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and finally the polar cells over the north and south poles.

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The boundaries between two different cells result in jet streams.

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They separate regions of cold and warm air,

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which means the jet streams are fueled by the Earth's steady rotation and

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that differential warming from the sun.

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In particular,

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the northern polar jet stream is what keeps arctic air

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over the Arctic,

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and it's strongest in the winter when temperature differences are most stark.

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The polar jet stream also controls most weather in the mid -latitudes of

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the northern hemisphere,

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like Boston,

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which sits at about 42 degrees north.

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Another key thing about fluids is that they're really easily perturbed.

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The jet stream is really just a river of air,

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so obstacles like a mountain range,

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open ocean,

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or just a random high pressure zone can easily disturb it and give

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it a little wiggle.

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When all these wiggles add up,

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the jet stream settles in

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a pattern called a raspy wave that encircles the pole.

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Usually for the polar jet stream this wave pattern will have about four to

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six dips in it.

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Sometimes these wiggles move north or south and occasionally a trough might

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disappear or reappear all of a sudden.

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Meteorologists refer to the jet stream's wiggles as meandering.

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How cute!

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Maybe I should meander more.

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For the most part,

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the Rasby wave pattern is pretty stable,

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meaning the pattern doesn't change all that much,

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but it will slowly rotate around the globe.

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In the springtime,

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more intense solar radiation adds energy to the air and the

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ocean.

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Temperature differences between the Arctic and the mid -latitudes become less pronounced,

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which weakens the jet stream.

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When our air river isn't moving as fast,

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it's more sensitive to disturbances,

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so the Rasby waves can become even wavier with the

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waves troughs dipping to lower latitudes than before.

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This is important because storm patterns tend to follow the leading edge of

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these troughs.

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The troughs carry low pressure zones,

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the warmer air we talked about earlier.

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Air at the boundaries of these low pressure zones rushes in and flows upward.

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As it rises,

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it cools,

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and the water it carried condenses to form storm clouds.

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What this adds up to is that the Rosby waves slowly rotate around

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the Earth.

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carrying storms with them as they go.

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Rosby waves move at a characteristic speed that depends on how many troughs

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they have.

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This means the broad river of air slowly rotates so that the troughs

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change position.

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And that cycle takes anywhere between five and 10 days.

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See where I'm going with this?

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Sometimes the troughs will be spaced about seven days apart.

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And sometimes that pattern will be centered on the weekends.

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Because once the rosby wave takes shape and gets stuck in one of its patterns,

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it can be really hard to break out.

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Rasby waves form naturally in the jet stream based on the Earth's topography,

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but sometimes other climate patterns can additionally amplify or

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shape those wobbles and troughs.

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For example,

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persistent high pressure zones can also set up blocking patterns,

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like one that often gets stuck over Greenland.

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The low pressure troughs must deflect around the zone that's blocked,

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forcing a specific shape into the meandering jet stream.

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And that?

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can cause the whole shebang to get stuck in a specific pattern.

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Hello,

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soggy Saturdays.

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Rainy weekends aren't the only consequence of these persistent anomalies in

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the jet stream.

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The jet stream also helps keep Western Europe pretty temperate,

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and it's what makes the Mediterranean region warm and dry for most of the year.

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So while Boston and New York get hit with perpetually rainy summer weekends,

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record -breaking heat waves and floods can get stuck over Europe.

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This isn't just a summertime issue either.

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Destabilization of the jet stream

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is associated with polar vortexes and Arctic blasts.

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During these events,

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pockets of Arctic air can push down from the Arctic Circle,

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bringing extreme cold with them.

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These effects are increasingly common in the US,

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particularly over the Midwest and Great Plains regions.

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Hopefully in 2026,

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we won't get stuck again in these weather patterns that keep us stuck indoors.

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But if you live in the Northeast US,

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I'm sorry to say that you might need to get your vitamin D dose on your weekday lunch

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breaks and settle for indoor museums and umbrellas on the weekends.

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