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 operates this station as the official observation point for New York City's aviation weather, making it the authoritative source for settlement. Wunderground archives this data daily and provides historical access through its paid weather history service, which resolves ambiguity about which reading counts as "highest" across all daylight and evening hours on that date.

July in New York typically sees daily highs between 82–88°F, with occasional heat waves pushing into the low 90s. The 0% crowd probability suggests traders are either uncertain about which temperature band the market offers, or the resolution criteria remain unclear to participants. Historical July records at LaGuardia show a maximum of 103°F (set in 1966), though such extremes require specific atmospheric conditions—sustained high pressure, low humidity, and urban heat island effects—that do not occur every summer. Comparable seasonal markets on US airport temperatures have resolved within 5–10°F of their 30-year July averages, providing a baseline for calibration.

No scheduled weather announcements or forecasts will alter the actual temperature on that date; the outcome is determined by atmospheric conditions alone. Traders should monitor long-range climate models from the National Weather Service and NOAA beginning in late June 2026, though such forecasts typically carry ±3–5°F uncertainty at a 30-day horizon. Under German GlüStV and US CFTC guidance, weather derivatives under $1,500 notional value generally avoid KYC requirements in most jurisdictions, making this market accessible to retail participants without formal account verification in many regions.

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

Is Polymarket legal in my country?

Polymarket is geo-blocked in the US/UK/EU. Actual usage via the Polymarket interface is not possible there. The legal status itself varies — many countries treat prediction markets as a gray area. Polymarket Germany Legal has a different geo footprint.

How are winnings taxed?

Tax treatment varies by jurisdiction. In most countries, prediction market gains are treated as ordinary income or capital gains. We cannot provide tax advice — consult a tax professional for your specific situation.

Can I trade anonymously?

Pseudonymously, yes — up to the KYC threshold. Polymarket Germany Legal stores an email address and wallet addresses rather than a legal name. Over $1,500 lifetime volume triggers KYC, after which identity is no longer anonymous.

What happens during a tax audit?

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

What if regulation changes?

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