This prediction market focuses on forecasting the maximum temperature recorded at LaGuardia Airport in New York City on March 28, 2026. The market resolves based on the official high temperature reading for that date from the LaGuardia Airport weather station, as reported by Wunderground's historical data service. LaGuardia Airport, designated as station KLGA, is one of the primary official weather observation sites for New York City used by the National Weather Service. The outcome will be determined by which predefined temperature range contains the actual recorded high. Interest in this specific forecast stems from several factors. March weather in the Northeastern United States is notoriously variable, with temperatures capable of swinging from winter-like cold to unseasonable warmth within a single week. This variability is influenced by complex atmospheric patterns, including the position of the jet stream and the potential for late-season nor'easters. Accurate temperature predictions for specific dates are valuable for sectors like energy trading, event planning, and agriculture. Furthermore, the date falls within a period of increasing focus on climate trends, making observations of seasonal norms and anomalies a point of public and scientific interest. Participants in this market are essentially betting on their assessment of both typical climatic conditions and specific short-term meteorological forecasts for that single day.

Historical Context

LaGuardia Airport has served as a primary climate station for New York City since the late 1930s, providing a continuous, long-term record for the region. Its location in Queens, near the water of Flushing Bay, can moderate temperature extremes compared to inland parts of the city, a factor known as the 'marine influence'. Historical data shows significant variability in late March temperatures. For example, on March 28, 1998, the high temperature reached 79°F, an exceptionally warm reading. In contrast, on March 28, 1984, the high was only 38°F. The average high temperature for March 28, based on the 1991-2020 climate normals published by NOAA, is approximately 53°F. This 30-year normal period is the current standard for assessing whether a daily temperature is above or below average. The historical record is also used to identify trends. An analysis by the New York City Panel on Climate Change found that the city's average annual temperature has increased by about 3.4°F since 1900, with warming observed across all seasons. This trend suggests a statistical increase in the probability of warmer-than-normal days in late March over time, though daily weather remains dominated by natural variability.

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