This market has settled: RESOLVED
Settled on March 26, 2026
Will Seattle have between 7 and 8 inches of precipitation in March?
Will Seattle have between 7 and 8 inches of precipitation in March? Odds: 2.6% YES on Polymarket. See live prices and trade this market.
Seattle March Precipitation Market Analysis
Current Odds
| Platform | Yes | No | Volume | Trade |
|---|---|---|---|---|
| Polymarket | 2.6% | 97.4% | $10K | Trade on Polymarket |
Market Analysis
The market is pricing an extremely low probability (2.6%) for Seattle receiving between 7 and 8 inches of rain in March, reflecting historical weather patterns that make this specific precipitation band a rare occurrence. This timing matters because we’re now in early 2025, giving traders roughly 14 months to assess meteorological forecasts and seasonal climate models before expiry. The narrow precipitation range (7-8 inches) is the critical constraint—Seattle’s average March precipitation is around 5.5 inches, so this outcome requires a notably wet month but not an extreme deluge.
The bull case rests on seasonal variability and atmospheric river patterns. March is Washington’s wettest month climatologically, and El Niño/La Niña cycles can dramatically shift precipitation patterns. If a strong atmospheric river system stalls over the Pacific Northwest in late February or early March 2026, 7-8 inches is achievable without being unprecedented. Historical data shows March precipitation in Seattle has exceeded 8 inches roughly 15-20% of the time over the past 50 years, suggesting the current odds underweight tail-risk scenarios. Additionally, climate change may be intensifying precipitation events in some Pacific Northwest weather systems.
The bear case dominates the current pricing because hitting exactly 7-8 inches requires precision within a narrow band. Most years Seattle either stays below 6 inches or exceeds 9 inches in March. The market may be implicitly pricing in a dry 2026 spring or simply reflecting the statistical rarity of landing in this specific range. Even wet Marches often produce 9+ inches, overshooting the target zone. As the March 2026 window approaches, seasonal forecasts from NOAA (typically issued with high confidence 2-3 weeks prior) will be the key catalyst—if they signal a dry pattern, this odds should compress further.
Traders should monitor NOAA’s Climate Prediction Center monthly outlooks starting in February 2026, which will provide the most actionable signal for whether March leans wet, normal, or dry. Historical precedent suggests 7-8 inches occurs in roughly 1-in-8 to 1-in-10 March events, making 2.6% odds defensible to slightly undervalued depending on your prior on Pacific Northwest climate volatility. The market’s heavy discount likely reflects both the rarity of the specific band and general market inefficiency in weather contracts with 14-month horizons.
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Frequently Asked Questions
How often does Seattle actually record 7-8 inches of precipitation in March based on historical data?
Historical records show this range occurs in roughly 10-15% of March events, meaning the current 2.6% odds may be underpricing the probability by a factor of 4-6x depending on climate model assumptions.
What specific atmospheric condition would most likely push Seattle into the 7-8 inch range?
A sustained atmospheric river event in late February or early March that persists for 2-3 days without intensifying into an extreme rain event would be the most probable driver.
When should I update my position based on official forecasts, and which sources matter most?
NOAA’s Climate Prediction Center releases monthly precipitation outlooks with actionable precision roughly 2-3 weeks before the target month, making late February 2026 the critical re-evaluation window.