Short Answer

Both the model and the market expect the highest temperature in LA on April 12, 2026, to be between 65° and 66°, with no compelling evidence of mispricing.

1. Market Behavior & Drivers

This market has exhibited a slow, downward price drift within a very narrow trading channel. The probability for a "YES" outcome opened at its peak of 5.0% and has since declined to its current price and all-time low of 1.0%. The overall trend is characterized by low volatility, with the price contained entirely within this 4-percentage-point range. The most significant movement was this initial decline from the opening price to the current floor. As there is no specific news or external context available, this price drop cannot be attributed to any particular development and likely reflects the market's initial process of price discovery as traders established a consensus.
The total trading volume of 9,501 contracts suggests a moderate level of engagement for a long-term weather market. The volume patterns during the price decline do not show a dramatic spike, but the move to the current 1.0% level occurred on higher volume than some preceding trades, suggesting a degree of conviction behind the bearish sentiment. Given the limited price history, the key levels are clearly defined by the trading range itself. The 1.0% mark is acting as a firm support level, representing the market's current floor, while the 5.0% opening price serves as the primary resistance level, which has not been retested since the market opened.
The chart suggests a consistently bearish market sentiment. The probability has remained in the single digits throughout its history, indicating that participants have always viewed a "YES" resolution as a very unlikely event. The subsequent decline from a low 5.0% to an even lower 1.0% reinforces this view, showing that collective confidence has weakened further over time. The market's consensus is that the highest temperature in Los Angeles on April 12, 2026, is highly unlikely to meet the threshold required for this market to resolve to YES.
  • Normal April maximum temperature in LA is 70.8°F.
  • Los Angeles has experienced a general warming trend for decades.
  • Spring 2026 El Niño may reduce Santa Ana wind frequency.
  • Prolonged marine heatwave conditions expected off California coast Q1 2026.
  • Marine heatwaves link to high-pressure ridges, driving warmer inland temperatures.

2. Price Chart

Historical Price (Probability)

Outcome probability
Date

3. Significant Price Movements

Notable price changes detected in the chart, along with research into what caused each movement.

📈 April 12, 2026: 8.0pp spike

Price increased from 43.0% to 51.0%

Outcome: 65° to 66°

What happened: No supporting research available for this anomaly.

4. Market Data

Contract Snapshot

The market resolves to "Yes" if the highest temperature recorded at Los Angeles Airport, CA on April 12, 2026, is between 65-66° F, as reported by the National Weather Service's (NWS) Climatological Report (Daily). A "No" resolution occurs if the temperature falls outside this range, as the event is mutually exclusive. Trading for this market concludes at 11:59 PM ET on April 12, 2026, with expiration occurring soon after the NWS data release for that day, or by April 13, 2026, at 3:59 am EDT at the latest. Traders should note that only the official NWS report is used for verification, and preliminary NWS data may have rounding nuances.

Market Discussion

The market discussion is marked by strong claims from one participant, "left.hill," who repeatedly alleges that the market is a scam, accusing the platform of manipulating temperature numbers and deeming the data unverifiable. Conversely, other traders, such as "KLCE" and "tent.ship," focus on external forecasts, noting discrepancies between NWS (62°) and AccuWeather (67°) predictions, with "tent.ship" specifically advising to trust the NWS data as the official source for trading. There is no clear consensus on the specific temperature range, but rather a divide between profound distrust in the market's integrity and engagement with legitimate weather prediction sources.

5. What ENSO Forecasts and Historical Temperature Data Are Available?

ENSO Forecast (Jan-Mar 2026)Specific forecast probabilities not provided in current sources [1]
LA Apr 12th Temp AnomaliesNot directly extractable from available sources [2]
Historical ENSO Event RecordsComprehensive listings of El Ni no and La Ni na events are available [2]
Primary climate prediction centers provide the consensus ENSO forecast for early 2026. Authoritative sources for the El Niño-Southern Oscillation (ENSO) forecast for January-March 2026 include the International Research Institute for Climate and Society (IRI) and the Climate Prediction Center (CPC) [1], alongside the World Meteorological Organization's (WMO) Global Seasonal Climate Update [3]. Although specific data is not detailed in the provided research, these institutions would typically offer a consensus forecast outlining the probabilities for El Niño, La Niña, or ENSO-neutral conditions for the specified period, presenting model outputs, expert interpretations, and global syntheses.
Specific historical temperature anomalies for Los Angeles on April 12th are unavailable. The provided sources do not directly contain daily temperature anomaly data for Los Angeles on April 12th during prior strong El Niño versus La Niña years. While sources from the NOAA Physical Sciences Laboratory [2] and the Climate Prediction Center [4] comprehensively list historical El Niño and La Niña events and their strength classifications, they do not provide daily temperature records or anomalies for a specific date like April 12th in Los Angeles. Furthermore, one source [5] pertains to Los Angeles weather records for April 13th, not April 12th, and does not link these records to ENSO event classifications or provide anomaly calculations. Thus, direct historical temperature anomalies for the precise date in Los Angeles are not extractable from the given information.
Sources (5)
  1. 1IRI – International Research Institute for Climate and Society | March 2026 Quick Lookiri.columbia.edu
  2. 2El Nino and La Nina Years: NOAA Physical Sciences Laboratoryesrl.noaa.gov
  3. 3Global Seasonal Climate Update for January-February-March 2026public.wmo.int
  4. 4Climate Prediction Center - Monitoring & Data: ENSO Impacts on the U.S. - Previous Eventscpc.ncep.noaa.gov
  5. 5Los Angeles April 13 Weather Recordsextremeweatherwatch.com

6. What is the Pacific Decadal Oscillation's Spring 2026 Projection and Impact?

Spring 2026 PDO ProjectionNot explicitly provided in available research [1]
Warm-Phase PDO Impact on SAWsDecreases Santa Ana wind frequency [2]
Cold-Phase PDO Impact on SAWsIncreases Santa Ana wind frequency [3]
Specific Spring 2026 PDO phase forecasts are currently unavailable. While an emergence of El Niño is forecasted for Spring 2026 by one source [4], an explicit projection for the Pacific Decadal Oscillation (PDO) phase is not provided in the available research. General information confirms that the PDO naturally undergoes varying phases [1]. Historically, the PDO phase significantly influences Santa Ana wind (SAW) frequency in Southern California, particularly during April.
Warm and cold PDO phases have distinct impacts on SAWs. A warm-phase PDO, characterized by positive index values, generally correlates with a decrease in the frequency of Santa Ana events throughout the season [2]. This reduction is similar to the effect of strong El Niño events, which are also associated with a significant decrease in April Santa Ana wind days [2]. Conversely, a cold-phase PDO, indicated by negative index values, tends to increase the frequency of Santa Ana events [3]. During the cold season (October–April), the PDO's influence on SAWs often opposes that of ENSO; a warm-phase PDO is linked to fewer SAWs (resembling El Niño), while a cold-phase PDO is associated with more SAWs [3].
Sources (4)
  1. 1Pacific Decadal Oscillation (PDO) | National Centers for Environmental Information (NCEI)ncei.noaa.gov
  2. 2Santa Ana Winds of Southern California: Their climatology, extremes, and behavior spanning six and a half decadesagupubs.onlinelibrary.wiley.com
  3. 3Hot and cold flavors of southern California’s Santa Ana winds: their causes, trends, and links with wildfire | Climate Dynamics | Springer Nature Linklink.springer.com
  4. 4Spring 2026 Forecast Flip: La Niña Collapses, El Niño Emerges - U.S. and Canada in Marchpogodnik.com

7. What are April 12th high temperature trends in Los Angeles?

Normal April Max Temperature70.8°F (Downtown Los Angeles) [1]
April 12th Specific Stats Since 1950Not directly published or calculated [1]
Los Angeles Regional Temperature TrendSignificant warming over past decades [2]
Specific high temperature statistics for April 12th are not published. The available web research does not directly publish or calculate the mean, median, and standard deviation for high temperatures exclusively on April 12th in the Los Angeles basin since 1950. However, the Los Angeles Almanac reports that the Normal Maximum Temperature for April in Downtown Los Angeles is 70.8°F [1]. This "normal" figure represents a 30-year average for the entire month, serving as a general benchmark rather than specific daily statistics for the full period since 1950 [1]. The relevant station for Downtown Los Angeles historical data is identified as GHCND:USW00093134 [3].
Day-specific decadal trends for April 12th are unavailable. Regarding discernible decadal trends for high temperatures specifically on April 12th, the provided sources do not offer a day-specific analysis. Nevertheless, multiple sources confirm a broader climate change trend affecting Los Angeles. Research indicates that the region has undergone significant warming over the past several decades, highlighting an overall increase in temperature based on more than 96 years of data [2]. While this general warming trend suggests that average temperatures across all days, including April 12th, may have increased over time, a quantified decadal trend for this specific date is not present in the research [4].
Sources (4)
  1. 1Daily Normal Temperatures for Downtown Los Angeles, Californialaalmanac.com
  2. 2Climate Change in Los Angeles, California — 96+ Years of Temperature Datagraphedthreads.com
  3. 3Daily Summaries Station Details: LOS ANGELES DOWNTOWN, CA US, GHCND:USW00093134 | Climate Data Online (CDO) | National Climatic Data Center (NCDC)ncdc.noaa.gov
  4. 4The Warming of Los Angeles, Californialaalmanac.com

8. What do long-range forecasts predict for Northeast Pacific marine heatwaves?

Q1 2026 Northeast Pacific OutlookAnticipation of prolonged marine heatwave and record high ocean temperatures off California coast [1]
Marine Heatwave SustenanceSustained via extratropical atmospheric teleconnections [2]
Historical Link to Atmospheric PatternsStrong link to spring high-pressure ridge and anomalous atmospheric conditions [3]
Northeast Pacific expects anomalously warm sea surface temperatures in Q1 2026. Long-range forecasts for the Northeast Pacific Ocean anticipate anomalously warm sea surface temperature (SST) conditions for the first quarter of 2026 (Q1 2026), consistent with a prolonged marine heatwave. As of April 2026, record high ocean temperatures have been observed off southern California, raising concerns about the persistence of such a marine heatwave [1]. These numerical forecasts extend SST anomaly predictions through simultaneous decomposition of seasonal and Pacific Decadal Oscillation (PDO) modes [4], with the overall outlook suggesting continued significant warmth in the region.
Warm marine heatwaves historically link to strong spring high-pressure ridges. Anomalously warm marine heatwave conditions off the California coast have been strongly associated with the strength and persistence of the spring high-pressure ridge over the region. These Northeast Pacific warm blobs are sustained by extratropical atmospheric teleconnections [2]. This complex interplay suggests that persistent atmospheric high-pressure systems can contribute to the formation and longevity of marine heatwaves, while extensive warm SST anomalies can influence atmospheric circulation. Such influence can reinforce or alter the position and strength of high-pressure ridges [3], creating a feedback loop that prolongs marine heatwave events and causes significant regional warming [5].
Sources (5)
  1. 1Record high ocean temperatures off southern California raise fears of prolonged marine heatwave | US news | The Guardianguardian.co.uk
  2. 2Northeast Pacific warm blobs sustained via extratropical atmospheric teleconnections | Nature Communicationsnature.com
  3. 3Regional Structure in the Marine Heat Wave of Summer 2015 Off the Western United Statesfrontiersin.org
  4. 4[2601.01864] Extending SST Anomaly Forecasts Through Simultaneous Decomposition of Seasonal and PDO Modesarxiv.org
  5. 5Record ocean temperatures off California raise fears of prolonged marine heatwave - Ocean and Coastal Futurescmscoms.com

9. When are April 2026 Southern California Temperature Anomaly Forecasts Available?

NCEP CFSv2 April 2026 ForecastsJuly to October 2025 [1]
ECMWF SEAS5 April 2026 ForecastsSeptember 2025 [2]
SoCal April 2026 Specific ForecastsNot yet available and cannot be determined in advance [1]
Seasonal models will issue April 2026 forecasts several months beforehand. The NCEP's Climate Forecast System v2 (CFSv2) is anticipated to begin providing its initial ensemble forecasts for April 2026 between July and October 2025, consistent with its typical 6-9 month lead time for seasonal outlooks [1]. Similarly, the ECMWF's SEAS5 long-range forecasting system, which produces monthly forecasts with up to a seven-month lead time, is expected to release its first reliable ensemble forecasts for April 2026 around September 2025 [2].
Specific Southern California temperature anomalies for April 2026 are currently unavailable. Probabilistic temperature anomaly forecasts for Southern California, relative to the 1991-2020 climatological average for April 2026, are not yet available and cannot be predicted at this time [1]. Both CFSv2 and ECMWF seasonal models present their outlooks as probabilistic forecasts for temperature anomalies, indicating the likelihood of "Above-normal," "Below-normal," or "Near-normal" temperatures for a given region. These detailed forecasts are developed closer to the target period once current atmospheric and oceanic conditions have been processed [1].
Sources (2)
  1. 1Climate Prediction Center - Outlooks: CFS Forecast of Seasonal Climate Anomaliescpc.ncep.noaa.gov
  2. 2Seasonal 7-month forecast | ECMWFecmwf.int

11. Historical Resolutions

Historical Resolutions: 20 markets in this series

Outcomes: 3 resolved YES, 17 resolved NO

Recent resolutions:

  • KXHIGHLAX-26APR10-T72: NO (Apr 11, 2026)
  • KXHIGHLAX-26APR10-T65: NO (Apr 11, 2026)
  • KXHIGHLAX-26APR10-B71.5: NO (Apr 11, 2026)
  • KXHIGHLAX-26APR10-B69.5: NO (Apr 11, 2026)
  • KXHIGHLAX-26APR10-B67.5: YES (Apr 11, 2026)