Highest temperature in NYC on July 21?

Platform comparison

Market context

On 21 July 2026, the highest temperature recorded at LaGuardia Airport Station will fall into one of several defined ranges, measured in degrees Fahrenheit. The National Weather Service maintains continuous observation at this major metropolitan airport, and Wunderground archives these records publicly. This market settles based on the single highest reading captured across all daylight and overnight hours on that date, with the settlement window closing at midday UTC on the resolution date itself.

New York City's July temperatures have historically clustered between 78°F and 88°F as daily highs, though extreme heat events pushing into the low 90s occur roughly once per decade during summer months. The 0% crowd probability currently assigned suggests either that no range option has yet attracted trading volume, or that the market interface has not yet populated active price discovery. Comparable weather markets on established platforms typically see meaningful activity only within 7–14 days of settlement, as meteorological forecasts gain precision and traders can distinguish signal from noise in seasonal patterns.

The National Weather Service issues extended forecasts roughly 10–14 days ahead, with meaningful accuracy emerging 5–7 days before the target date. Traders should monitor late-July atmospheric patterns, including any Atlantic tropical systems or high-pressure ridging that could drive anomalous heat. The US CFTC's regulatory reach over prediction markets remains contested; UK-based traders accessing this market should note that German GlüStV rules do not apply to weather derivatives settled on objective third-party data. Accessibility thresholds permitting no-KYC participation up to $1,500 notional exposure mean this particular market remains open to casual participants without identity verification, provided individual stakes remain modest.

Methodology

This overview of Highest temperature in NYC on July 21? reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.

Resolution & payout

On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.

FAQ

Do I need to KYC for Polymarket Legal UK?

Not for lifetime trading volume under $1,500. Above that threshold, a quick KYC flow kicks in — ID, selfie, approximately 5-10 minutes. The threshold matches FATF travel standards for unregulated crypto platforms.

What happens during a tax audit?

You're responsible for documenting your trades. Polymarket Legal UK exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.

Are prediction markets gambling?

Legally unclear in most jurisdictions. Some interpretations classify them as wagering (gambling regulation applies), others as derivatives (financial regulation applies). There's no global precedent specifically for on-chain prediction markets.

Is there a withdrawal cap?

No platform-side cap. You can withdraw any amount provided KYC is complete. SEPA bank withdrawals over €15,000 trigger additional anti-money-laundering checks (statutory obligation for all platforms).

What if regulation changes?

If regulation changes in your jurisdiction (e.g. prediction markets are banned), Polymarket Legal UK would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.