NYC May 9 Low Temperature: Will 52-53°F Hold?

Forty-six percent. That is where the market sits on 52-53°F being the lowest temperature recorded in New York City on May 9, 2026. The contract resolves at noon on May 9, which means overnight lows are the deciding factor. A single degree of separation from the next bracket up or down is all that stands between a payout and a loss.

The market has been moving fast. A combined momentum signal of +23.0% over one hour, +16.0% over 24 hours, and a trend score of 83.20 points to rapid repricing. The most likely driver: short-range forecast models locking in on May 8 evening, tightening confidence around the overnight low range. This is a weather market, not a policy market. The data will be what it is.

How the 52-53°F Contract Works

The market asks traders to pick the correct bracket for NYC’s lowest temperature on May 9, 2026. The primary outcome is 52-53°F. Resolution is based on official measurement, likely sourced from NOAA or a designated weather observation station serving the New York City area. The contract closes at 2026-05-09 12:00:00, capturing the overnight low through late morning.

• 52-53°F (YES): Priced at 0.46, implying a 46% probability that the overnight low lands in this two-degree bracket.
• All other brackets (NO): Priced at 0.54, covering any reading outside 52-53°F, including brackets above (54-55°F, 56-57°F) and below (50-51°F, 48-49°F, and colder).

The NO outcome pays out if the overnight low falls anywhere outside the 52-53°F window. May in New York City produces overnight lows that vary by four to eight degrees depending on cloud cover, wind direction, and whether a frontal boundary passes through. A warmer marine flow pushing the low into the 54-55°F bracket is just as damaging to YES as a cold shot dropping temperatures to 50-51°F.

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Momentum and Market Signals

The combined momentum signal here is sharp. A +23.0% one-hour move paired with a +16.0% 24-hour gain and an 83.20 trend score suggests traders received new forecast information and acted on it quickly. In weather markets, this pattern typically follows a model update or an evening forecast package that narrows the predicted low range toward a specific bracket.

Total market volume sits at $8,608, with $7,706 of that trading in the last 24 hours. Liquidity stands at $11,885. Volume is well below $1 million. That matters: thin liquidity means a single large order can move the price sharply in either direction. The 46% probability reflects current trader positioning, but it is not a stable consensus. New forecast data or a model shift before midnight on May 8 could reprice this contract significantly.

• The 1h change of +23.0% combined with the 24h change of +16.0% and trend score of 83.20 forms a single directional signal favoring the YES bracket, likely triggered by an updated forecast narrowing the predicted low range.
• Volume of $7,706 in 24 hours against total volume of $8,608 means almost all trading happened in the last day, consistent with a market that was quiet until forecasts converged.
• Liquidity of $11,885 is thin. Price can move sharply on the next National Weather Service forecast package or model run.
• The 46% YES probability sits just below even odds, reflecting genuine uncertainty across adjacent brackets rather than a clear directional lean.
• Open interest is listed at $0, which reinforces the picture of a market where most positions are being opened and closed quickly as forecasts update.

Lines Analysis: New York City Overnight Low

The National Weather Service Central Park observation is the standard reference for NYC temperature records. May 9 overnight lows in New York City historically cluster in the low-to-mid 50s during the second week of May, which is why the 52-53°F bracket carries the highest single-bracket probability at 46%. The market is not pricing a certainty. It is pricing a best-guess given forecast spread.

The NO side is real and meaningful. A warmer-than-expected marine push could lift the low into the 54-55°F or 56-57°F bracket before the resolution window closes at noon. A faster cold-front passage could drop the low to 50-51°F or lower. The 54% combined probability on everything outside the primary bracket reflects how wide the range of plausible outcomes remains with less than 24 hours to resolution.

• National Weather Service forecast updates through the evening of May 8 will be the primary price driver before resolution.
• Model agreement between the GFS and European ensemble on the overnight low temperature would tighten the spread and push one bracket’s probability higher.
• Wind direction shift from southwest to northwest after sunset would signal a colder overnight, pushing probability toward lower brackets.
• Persistent cloud cover through the night would keep temperatures elevated, supporting the 52-53°F or higher brackets.
• The resolution deadline of 2026-05-09 12:00:00 means the low is almost certainly recorded between 2 a.m. and 6 a.m. local time.

The $8,608 in total volume reflects a small but active market repricing in real time as forecasts update. The current 46% probability on 52-53°F is the market’s best current estimate, not a settled conclusion. The data will resolve this cleanly when the thermometer reads what it reads.

LINES VERDICT

Leaning YES, Not Locked In

The 52-53°F bracket carries the highest single-outcome probability and sits in the historical sweet spot for NYC May overnight lows, but thin liquidity and a wide spread of adjacent brackets mean this market is far from settled.

What the market says: Forty-six percent probability for the 52-53°F low, with 54% distributed across all other brackets. With thin volume under $1 million, a single forecast update before the 2026-05-09 12:00:00 resolution could shift the price sharply in either direction.

Key unknown: The National Weather Service evening forecast package on May 8 is the single most important input. Model agreement or disagreement on the overnight low will determine whether the 52-53°F bracket holds its lead or loses ground to adjacent outcomes.

Scientific Context

New York City’s Central Park station has a well-documented May climatology. The average low temperature during the second week of May sits in the low-to-mid 50s Fahrenheit, consistent with the 52-53°F bracket being the modal single-outcome bet. Year-to-year variability is driven primarily by synoptic-scale weather patterns: cold continental air masses can push lows into the upper 40s, while persistent onshore flow keeps nights mild in the 56-58°F range. The market’s spread across ten brackets reflects this real meteorological variability. One bracket cannot claim certainty in a 48-hour forecast window for a two-degree temperature range.

Frequently Asked Questions

• What does 46% probability mean for this contract? It means traders currently estimate a 46% chance that NYC’s overnight low on May 9 falls specifically in the 52-53°F range. The remaining 54% is split across nine other temperature brackets.
• How does the NO outcome pay out? The NO outcome covers every bracket except 52-53°F. If the official low reads 50°F, 55°F, or any temperature outside the primary range, NO traders collect.
• What moves the price before resolution? National Weather Service forecast updates and weather model runs are the primary drivers. A model shift showing a warmer or colder overnight would reprice this contract within minutes.
• When does this contract resolve? Resolution is set for 2026-05-09 12:00:00. The overnight low is typically recorded in the early morning hours, well before the noon deadline.
• Is the volume reliable enough to trust this price? Total volume is $8,608 with liquidity of $11,885. This is a thin market. Prices can move sharply on a single trade or forecast update and may not reflect broad consensus.

This analysis reflects market conditions as of 2026-05-08 15:13:10. Prediction market probabilities are volatile and shift as new data and regulatory decisions emerge, especially as the 2026-05-09 12:00:00 resolution date approaches. Lines.com does not accept bets or provide financial or gambling advice. All market outcomes are uncertain.