Trade: Will any month of 2026 be the hottest on record?

Market context

The market assesses whether any calendar month in 2026 will record the highest average temperature for that month since instrumental records began. This hinges on the Global Land-Ocean Temperature Index maintained by NASA GISS, which synthesises satellite and station data across the planet. A 90% implied probability reflects trader conviction that at least one month next year will exceed its historical counterpart—a threshold that has become increasingly probable as baseline temperatures have risen. The current order book pricing reflects this consensus, with buyers willing to commit capital at odds suggesting near-certainty of the event occurring.

Recent years provide instructive precedent. 2023 and 2024 both saw multiple months set records for their respective calendar months, with 2024 tracking as the warmest year on record through its first nine months according to Copernicus Climate Change Service data released in October. This momentum matters: if 2026 continues the warming trajectory established since 2015, monthly records become statistically likely rather than exceptional. The bar for resolution is deliberately low—any single month suffices—which mathematically favours the affirmative case across twelve independent monthly comparisons.

Traders should monitor El Niño and La Niña conditions, which significantly influence global temperatures on seasonal timescales. The current neutral phase could shift either direction, potentially dampening or amplifying 2026's temperature profile. NASA GISS publishes monthly temperature anomalies with a lag of roughly two weeks, meaning final 2026 data will arrive throughout early 2027, well before the January settlement deadline. Volatility may emerge if unexpected cooling events occur, though the 90% probability suggests markets view such scenarios as tail risks.

How this market resolves

Resolution is handled by the UMA optimistic oracle on Polygon. A proposer submits the outcome, a two-hour dispute window opens, and if no one stakes a counter-claim the payout is final. Contested outcomes escalate to UMA token-holder voting. Payouts clear in USDC to the winning side.

How to trade this market step by step

The mechanics for trading "Will any month of 2026 be the hottest on record?" are the same as any other PolyGram event contract. Each YES share resolves to $1 if the event happens, or $0 if it doesn't. The current price between 0¢ and 100¢ is the market's probability estimate, set live by the order book.

1. Sign in on polygram.ink with your email — no full KYC under $1,500 lifetime trading volume.
2. Deposit USDC on Polygon (lowest fees, ~$0.01 per transaction) or Ethereum. Funds credit after 12 confirmations.
3. Pick a side. Buy YES if you believe the event will happen; buy NO if you think it won't. The current YES price reflects the market's collective probability.
4. Size your position. If you stake 100 USDC at 89% YES, you'll receive shares that pay $112 if YES resolves true — a 12% gross return. If NO resolves, your shares are worth $0.
5. Set risk controls (optional). Stop-loss, take-profit, and limit-order types all supported. Use the trade ticket's slippage box to cap your maximum entry price.
6. Wait for resolution. When the event resolves on-chain via the UMA optimistic oracle, the winning side settles to 100¢ automatically and USDC hits your balance within seconds. Withdrawable to any wallet you control.

How active is this market?

$136K in lifetime turnover and $2K of resting liquidity puts this market in the top 30% by volume for weather contracts on PolyGram. Order-book depth is thin — large orders may need to be split across the book or executed as limit orders.

Last 24 hours alone saw $11 in turnover, consistent with the market's lifetime daily-average pace.

The market has been open for 3 months — the price has had time to stabilise as new information arrived.

Higher-volume markets tend to have tighter spreads and faster price discovery — meaning the displayed YES/NO percentages are more likely to reflect the true crowd-implied probability rather than a single trader's directional view.

Key terms

YES / NO share

A binary outcome token that pays $1.00 if the underlying claim resolves true (YES) or false (NO), and $0 otherwise. The market price between 0¢ and 100¢ is the implied probability.

CLOB

Central limit order book. The matching engine that pairs YES buyers with NO buyers (effectively the same trade). Polymarket's CLOB on Polygon executes trades on-chain via the conditional-tokens framework.

Liquidity

USDC capital sitting in resting limit orders inside the order book. Deeper liquidity means smaller slippage on large trades and a tighter bid-ask spread.

UMA optimistic oracle

The on-chain dispute system that settles each Polymarket market. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution.

Slippage

The difference between the displayed mid-price and your fill price. Affects market orders most; limit orders avoid slippage but may take time to fill.

Conditional token

ERC-1155 outcome share issued by Gnosis Conditional Tokens on Polygon. The token type that resolves to $1.00 or $0.00 at settlement.

See the full prediction-market glossary →

Frequently asked questions

Risk and regulatory note

Prediction-market positions can lose 100% of staked capital. Outcomes are uncertain by definition — historical accuracy of crowd-implied probabilities is high in aggregate but not for any single market. PolyGram does not provide investment advice. Trade only with capital you can afford to lose.

Regulatory status varies by jurisdiction. Germany, the United States, and most EU countries treat Polymarket-style event contracts under one of three frameworks: financial derivative, gambling product, or unregulated novel asset. Consult local counsel before trading.

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