NYC Lowest Temp July 9: Is 72-73°F the Right Bet?

New York City weather markets are rarely tidy, and this one is no exception. The 72-73°F band holds a 30.5% implied probability for the overnight low on July 9, making it the single most likely outcome in a field of eleven possible ranges. That sounds convincing until you realize 70 cents of every dollar is betting against it. The market is pricing uncertainty, not science.

The contract asks: what will be the lowest temperature recorded in New York City on July 9? The 72-73°F outcome trades at $0.31 YES and $0.70 NO, resolving at noon on July 9, 2026. Total volume sits at $3,137, all of it placed within the last 24 hours.

How the 72-73°F Contract Works

A YES payout requires the official low temperature in New York City on July 9 to fall within the 72-73°F range. The market resolves at 12:00 ET on July 9. Ten competing outcome bands cover every degree range from 59°F and below up through 78°F and higher, so this is a plurality market, not a binary one.

• 72-73°F trades YES at $0.31 (30.5% implied probability).
• The NO contract trades at $0.70, reflecting the combined probability of all other temperature bands.
• The contract closes July 9, 2026 at noon Eastern Time.

The NO side wins when any temperature band other than 72-73°F captures the actual overnight low. With ten alternative outcomes splitting the remaining probability, a reading of 70-71°F or 74-75°F each carries meaningful implied probability of its own. The overnight low landing just one or two degrees off the target band is the most realistic path to a NO payout.

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Momentum and Market Signals

The momentum composite here is muted. The 1-hour price change is flat at 0.0%, and the trend score of 42.37 sits just below the neutral midpoint. The entire $3,137 in volume arrived in the last 24 hours, which means this market opened cold and attracted a burst of activity as the resolution date approached. That pattern is typical for single-day weather markets.

Total volume of $3,137 is well below the $1 million threshold. Thin liquidity means the price can move sharply on any additional trading. The $27,464 in available liquidity is large relative to volume, which suggests the order book is deep enough to absorb a moderate position, but it also means current prices reflect a small number of traders. A few large bets could reprice this contract quickly before the July 9 noon close.

• The 1-hour price change of 0.0% and trend score of 42.37 together signal a market in a holding pattern, waiting on actual forecast data rather than trader conviction.
• The 24-hour price history shows a 17.5% spike on July 7 followed by a 15% pullback on July 8, suggesting initial optimism about the 72-73°F range that cooled as forecasts were revised.
• Volume of $3,137 against $27,464 in liquidity flags this as a low-conviction market. Thin participation makes the 30.5% price less reliable than it would be in a high-volume contract.
• Trader sentiment registers as strongly bearish: 69.5% of the market is positioned against the 72-73°F outcome.

Lines Analysis: New York City July Overnight Lows

Here’s what the measurements are telling us. July overnight lows in New York City cluster in the low-to-mid 70s during heat-retaining summer periods. The urban heat island effect keeps nighttime temperatures elevated well above surrounding suburbs, and July is historically the warmest month for overnight minimums in the city. A low in the 72-73°F range is meteorologically plausible and sits near the middle of the expected distribution for a humid summer night.

The spread of alternative outcomes is what creates the NO pressure. The 70-71°F band captures the scenario where Atlantic sea breezes or a passing cold front edge the overnight low down slightly. The 74-75°F band captures a scenario where daytime heat retention pushes the floor higher. Neither requires an extreme weather event. A two-degree forecast error in either direction is routine, and that routine error probability is what the 69.5% NO position is pricing.

• National Weather Service forecast model output for July 8-9 in New York City will be the single most important signal before the noon resolution.
• Any update to the official NWS point forecast for Central Park or JFK International Airport that pins the overnight low below 71°F or above 74°F would directly reprice competing bands.
• Surface dewpoint readings in the 65-70°F range support overnight lows staying above 70°F in the urban core.
• A frontal passage tracked by NOAA’s Weather Prediction Center moving through the region on July 8 evening would be the primary downside risk for this band.

With $3,137 in total volume, this market reflects a small pool of informed weather traders, not broad institutional conviction. The data currently favors the 72-73°F band as the plurality outcome, but the narrow margin over adjacent bands means any shift in the NWS point forecast will move the price before noon on July 9.

LINES VERDICT

Plurality Favorite in a Tight Field

The 72-73°F band leads a crowded market on meteorological plausibility, but the surrounding temperature ranges sit close enough that a minor forecast revision flips the calculus entirely.

What the market says: At 30.5% implied probability, traders treat this outcome as the most likely single result while acknowledging that adjacent bands collectively dominate. With less than 24 hours to resolution and volume below $1 million, this price is fragile and will respond sharply to any NWS forecast update before the July 9 noon close.

Key unknown: The final NWS point forecast for New York City overnight low on July 8-9 is the single data point that will settle this market. Any revision pinning the low outside the 72-73°F range represses this band and lifts its neighbors.