What a year.

Monday marks exactly one year since Gov. Andrew Cuomo signed the “New York State on PAUSE” executive order — officially shutting down the Empire State in an effort to slow the spread of coronavirus.

All non-essential businesses closed and New Yorkers were urged to stay home as the pandemic upended our daily lives.

At the time, the Empire State’s COVID-19 death toll was at 114, cases were surging past 15,000 — and we were all furiously washing our groceries in Lysol while walking around mask-free.

So much has happened since then that it’s hard to remember even some of the more surreal moments New York has ever seen. Here is a refresher on some of the milestones from a very weird year:

Offering a glimpse of the statewide shutdown to come, the National Guard were deployed in early March to enforce a mile-radius coronavirus “containment area” in New Rochelle, then overwhelmed by the virus.

The lockdown was to last a whole two weeks.

Not long before he ordered the statewide shutdown, Cuomo unveiled a new hand sanitizer — produced by New York’s prison inmates.

It came after reports of sickening price-gouging, such as a Garment District hardware store selling 1200 ml bottles of Purell for $79.

Cuomo said the state’s own budget product had a “floral bouquet.”

Right as Mayor de Blasio announced he was closing the marriage bureau on March 20, two couples tied the knot in brief ceremonies outside the shuttered 80 Centre Street building.

One of the couples wore latex gloves as they were wed by a Criminal Court judge, who jokingly suggested they not kiss to seal the deal — but rather bump elbows to minimize bodily contact.

The virus quickly overwhelmed hospitals and health care workers, who at one point were forced to use refrigerated trucks to store dead bodies.

Medical staffers were also left without enough proper protective gear, and The Post uncovered how the shortage at one Manhattan hospital was so dire, desperate nurses resorted to wearing trash bags.

As hospitals became inundated with patients, officials searched for other options — such as opening an Army hospital at the Javits Center and the USNS Comfort ship, which was sent by the federal government — though both ended up little-used.

Meanwhile, the evangelical Christian relief organization Samaritan’s Purse set up a massive field hospital in Central Park to relieve an overflow of patients from Mount Sinai’s facilities. It closed in May.

With the Big Apple in lockdown, officials tried to combat crowds at city parks — by taking down basketball hoops.

The rings were nixed at 80 courts where “repeated attempts” to stop pick-up games had failed, de Blasio said.

It wasn’t the only bizarre sight in city green spaces — Brooklyn’s Domino Park raised eyebrows when it painted white circles on the grass to keep people apart in an arrangement likened to “human parking spots.”

Then, over Memorial Day Weekend, city officials banned swimming at beaches — though surfing was still OK for some reason.

The coronavirus infected New Yorkers of all stripes.

In April, the shuttered Bronx Zoo suffered a virus outbreak when Nadia, a 4-year-old Malayan tiger, tested positive after developing a dry cough. Officials believe she was infected by a zookeeper.

Later that month, two pet cats in the Empire State also tested positive for the bug — reportedly the first diagnoses of domestic animals on American soil.

It’s unclear how it started, and unclear why it ended, but for many months in lockdown, New York shut-ins honored frontline coronavirus workers by cheering out of their windows at 7 p.m.

Several heartwarming stories emerged from the celebrations —like a Brooklyn nurse who proposed to her girlfriend during one of the nightly rounds of applause and Bellevue medical staffers seen being moved to tears by the gesture.

With hair salons closed, at least one Brooklyn barber turned the street into a salon.

Joel Munoz’s rogue curbside salon went viral in May, forcing him to move his al-fresco hair-snipping operation to a different location.

During one coronavirus briefing over the summer, Cuomo unveiled a bizarre Styrofoam mountain to represent the contagion’s rise and fall in the state.

He used the glorified school project at a handful of briefings starting in late June, presenting it as a metaphor for New York’s work against the pandemic.

The governor parlayed the prop into an even weirder poster — which he put up for sale at $14.50 a pop — featuring locations such as “The Sea of Division” and “The Boyfriend Cliff.”

As the mercury plummeted but indoor dining remained closed, New York’s restaurant owners pushed the definition of “outdoor” with an array of ingenious street and often highly illicit sidewalk structures.

The summer’s makeshift sheds gave way to an array of private dining igloos and bubbles, greenhouses, domes and even enclosures resembling luxury passenger train cars.