Dry conditions driven by a persistent high-pressure ridge over the Pacific Northwest have kept Seattle precipitation well below the 1.6-inch September average through early September, with only 0.18–0.35 inches recorded month-to-date. Official National Weather Service forecasts and ensemble models show limited moisture return this weekend from a weak trough, followed by clearing and below-normal precipitation favored through mid-month. These factors align with the market's heavy weighting toward totals under 1 inch, as historical analogs and current steering patterns reduce the likelihood of significant late-month rainfall accumulation.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedPrecipitation in Seattle in September?
Precipitation in Seattle in September?
<1" 50%
1-1.5" 20%
1.5-2" 20%
2-2.5" 8%
NEW
NEW
Sep 30, 2026
<1"
50%
1-1.5"
20%
1.5-2"
20%
2-2.5"
8%
>4"
6%
3-4"
1%
2.5-3"
1%
<1" 50%
1-1.5" 20%
1.5-2" 20%
2-2.5" 8%
NEW
NEW
Sep 30, 2026
<1"
$531 Vol.
50%
1-1.5"
$868 Vol.
20%
1.5-2"
$787 Vol.
20%
2-2.5"
$365 Vol.
8%
>4"
$535 Vol.
6%
3-4"
$336 Vol.
1%
2.5-3"
$325 Vol.
1%
This market will resolve according to the total precipitation in inches in Seattle between September 1 and September 30, 2026, 11:59PM ET according to the National Oceanic and Atmospheric Administration (NOAA).
If the reported data falls exactly between two brackets, this market will resolve to the higher bracket.
The resolution source for this market will be NOAA, specifically the figure for September 2026 when the "Monthly summarized data" for "Seattle City Area" is selected with the variable set to "Precipitation" at the https://www.weather.gov/wrh/climate?wfo=sew link once that figure is finalized for the whole month of September 2026.
If the relevant data is not available by December 7, 2026, 11:59 PM ET, another credible resolution source will be chosen.
The resolution source for this market measures precipitation to 2 decimal places (e.g., 1.54), thus, this is the level of precision that will be used when resolving this market. Any revisions to precipitation recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Dry conditions driven by a persistent high-pressure ridge over the Pacific Northwest have kept Seattle precipitation well below the 1.6-inch September average through early September, with only 0.18–0.35 inches recorded month-to-date. Official National Weather Service forecasts and ensemble models show limited moisture return this weekend from a weak trough, followed by clearing and below-normal precipitation favored through mid-month. These factors align with the market's heavy weighting toward totals under 1 inch, as historical analogs and current steering patterns reduce the likelihood of significant late-month rainfall accumulation.
This market will resolve according to the total precipitation in inches in Seattle between September 1 and September 30, 2026, 11:59PM ET according to the National Oceanic and Atmospheric Administration (NOAA).
If the reported data falls exactly between two brackets, this market will resolve to the higher bracket.
The resolution source for this market will be NOAA, specifically the figure for September 2026 when the "Monthly summarized data" for "Seattle City Area" is selected with the variable set to "Precipitation" at the https://www.weather.gov/wrh/climate?wfo=sew link once that figure is finalized for the whole month of September 2026.
If the relevant data is not available by December 7, 2026, 11:59 PM ET, another credible resolution source will be chosen.
The resolution source for this market measures precipitation to 2 decimal places (e.g., 1.54), thus, this is the level of precision that will be used when resolving this market. Any revisions to precipitation recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
If the reported data falls exactly between two brackets, this market will resolve to the higher bracket.
The resolution source for this market will be NOAA, specifically the figure for September 2026 when the "Monthly summarized data" for "Seattle City Area" is selected with the variable set to "Precipitation" at the https://www.weather.gov/wrh/climate?wfo=sew link once that figure is finalized for the whole month of September 2026.
If the relevant data is not available by December 7, 2026, 11:59 PM ET, another credible resolution source will be chosen.
The resolution source for this market measures precipitation to 2 decimal places (e.g., 1.54), thus, this is the level of precision that will be used when resolving this market. Any revisions to precipitation recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Aug 31, 2026, 9:43 AM ET
Volume
$3,746End Date
Oct 1, 2026Market Opened
Aug 31, 2026, 9:43 AM ETResolver
0x69c47De9D...This market will resolve according to the total precipitation in inches in Seattle between September 1 and September 30, 2026, 11:59PM ET according to the National Oceanic and Atmospheric Administration (NOAA).
If the reported data falls exactly between two brackets, this market will resolve to the higher bracket.
The resolution source for this market will be NOAA, specifically the figure for September 2026 when the "Monthly summarized data" for "Seattle City Area" is selected with the variable set to "Precipitation" at the https://www.weather.gov/wrh/climate?wfo=sew link once that figure is finalized for the whole month of September 2026.
If the relevant data is not available by December 7, 2026, 11:59 PM ET, another credible resolution source will be chosen.
The resolution source for this market measures precipitation to 2 decimal places (e.g., 1.54), thus, this is the level of precision that will be used when resolving this market. Any revisions to precipitation recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Dry conditions driven by a persistent high-pressure ridge over the Pacific Northwest have kept Seattle precipitation well below the 1.6-inch September average through early September, with only 0.18–0.35 inches recorded month-to-date. Official National Weather Service forecasts and ensemble models show limited moisture return this weekend from a weak trough, followed by clearing and below-normal precipitation favored through mid-month. These factors align with the market's heavy weighting toward totals under 1 inch, as historical analogs and current steering patterns reduce the likelihood of significant late-month rainfall accumulation.
This market will resolve according to the total precipitation in inches in Seattle between September 1 and September 30, 2026, 11:59PM ET according to the National Oceanic and Atmospheric Administration (NOAA).
If the reported data falls exactly between two brackets, this market will resolve to the higher bracket.
The resolution source for this market will be NOAA, specifically the figure for September 2026 when the "Monthly summarized data" for "Seattle City Area" is selected with the variable set to "Precipitation" at the https://www.weather.gov/wrh/climate?wfo=sew link once that figure is finalized for the whole month of September 2026.
If the relevant data is not available by December 7, 2026, 11:59 PM ET, another credible resolution source will be chosen.
The resolution source for this market measures precipitation to 2 decimal places (e.g., 1.54), thus, this is the level of precision that will be used when resolving this market. Any revisions to precipitation recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
If the reported data falls exactly between two brackets, this market will resolve to the higher bracket.
The resolution source for this market will be NOAA, specifically the figure for September 2026 when the "Monthly summarized data" for "Seattle City Area" is selected with the variable set to "Precipitation" at the https://www.weather.gov/wrh/climate?wfo=sew link once that figure is finalized for the whole month of September 2026.
If the relevant data is not available by December 7, 2026, 11:59 PM ET, another credible resolution source will be chosen.
The resolution source for this market measures precipitation to 2 decimal places (e.g., 1.54), thus, this is the level of precision that will be used when resolving this market. Any revisions to precipitation recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Volume
$3,746End Date
Oct 1, 2026Market Opened
Aug 31, 2026, 9:43 AM ETResolver
0x69c47De9D...Dry conditions driven by a persistent high-pressure ridge over the Pacific Northwest have kept Seattle precipitation well below the 1.6-inch September average through early September, with only 0.18–0.35 inches recorded month-to-date. Official National Weather Service forecasts and ensemble models show limited moisture return this weekend from a weak trough, followed by clearing and below-normal precipitation favored through mid-month. These factors align with the market's heavy weighting toward totals under 1 inch, as historical analogs and current steering patterns reduce the likelihood of significant late-month rainfall accumulation.
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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