Official KNMI observations from the Amsterdam/Schiphol meteorological station confirm the highest temperature on April 18 reached exactly 14°C, driving trader consensus to 100% implied probability on that outcome as the market resolves based on verified data. This aligns with mid-April climatology in the Netherlands, where average highs hover around 13–15°C amid variable spring weather patterns influenced by North Atlantic circulation. Cool northerly airflow and persistent cloud cover limited daytime heating, per standard synoptic reports. Realistic challenges are minimal post-measurement—only a rare data revision from quality control or station sensor anomaly could shift it, with next KNMI summary expected shortly. Traders await final certification, but current positioning reflects ironclad observational evidence.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Amsterdam on April 18?
Highest temperature in Amsterdam on April 18?
14°C 100.0%
10°C or below <1%
11°C <1%
12°C <1%
$57,512 Vol.
$57,512 Vol.
10°C or below
No
11°C
No
12°C
No
13°C
No
14°C
Yes
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C or higher
No
14°C 100.0%
10°C or below <1%
11°C <1%
12°C <1%
$57,512 Vol.
$57,512 Vol.
10°C or below
No
11°C
No
12°C
No
13°C
No
14°C
Yes
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C or higher
No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Amsterdam Airport Schiphol Station once information is finalized, available here: https://www.wunderground.com/history/daily/nl/schiphol/EHAM.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Apr 16, 2026, 12:43 AM ET
Resolution Source
https://www.wunderground.com/history/daily/nl/schiphol/EHAMResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Amsterdam Airport Schiphol Station once information is finalized, available here: https://www.wunderground.com/history/daily/nl/schiphol/EHAM.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/nl/schiphol/EHAMResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official KNMI observations from the Amsterdam/Schiphol meteorological station confirm the highest temperature on April 18 reached exactly 14°C, driving trader consensus to 100% implied probability on that outcome as the market resolves based on verified data. This aligns with mid-April climatology in the Netherlands, where average highs hover around 13–15°C amid variable spring weather patterns influenced by North Atlantic circulation. Cool northerly airflow and persistent cloud cover limited daytime heating, per standard synoptic reports. Realistic challenges are minimal post-measurement—only a rare data revision from quality control or station sensor anomaly could shift it, with next KNMI summary expected shortly. Traders await final certification, but current positioning reflects ironclad observational evidence.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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