# Rain in Seattle in Apr 2026

> Above 1 inch leads at 49%, runner-up 21% across 3 winner-take-all outcomes — refreshed 1 min ago.

URL: https://simplefunctions.dev/odds/rainseam
Updated: 2026-05-09T04:20:40.427Z
Category: general
Status: active
Closes: 2026-06-01

## Headline

- Leader: Above 1 inch at 49%
- Runner-up: Above 2 inches at 21%
- Outcomes: 3 (winner-take-all)
- Venue: Kalshi (3 contracts)
- 24h volume: $735

## Bound contracts (3)

| Outcome | Price | 24h | Volume | Venue | Slug |
|---|---|---|---|---|---|
| Above 1 inch | 49¢ | +3pp | $250 | kalshi | /markets/rain-in-seattle-in-may-2026-above-1-inch-kalshi-kxrainseam-26may-1 |
| Above 2 inches | 21¢ | −1pp | $344 | kalshi | /markets/rain-in-seattle-in-may-2026-above-2-inches-kalshi-kxrainseam-26may-2 |
| Above 3 inches | 8¢ | +1pp | $142 | kalshi | /markets/rain-in-seattle-in-may-2026-above-3-inches-kalshi-kxrainseam-26may-3 |

## 30-day trajectory

| Day | Above 1 inch | Above 2 inches | Above 3 inches |
|---|---|---|---|
| 2026-05-01 | 60 | 24 | 5 |
| 2026-05-02 | 62 | 26 | 8 |
| 2026-05-08 | 43 | 15 | 7 |

_6 days of price history captured. Each row is the daily mean of intraday 5-min captures._

## What moved the line

- 2026-05-06 · Above 1 inch −31pp 58→27¢ · kalshi
- 2026-05-07 · Above 1 inch +13pp 27→40¢ · kalshi
- 2026-05-06 · Above 2 inches −12pp 23→11¢ · kalshi
- 2026-05-07 · Above 2 inches +5pp 11→16¢ · kalshi
- 2026-05-03 · Above 1 inch −4pp 62→58¢ · kalshi

## Methodology

Headline is the **leader's price**, not an arithmetic mean — averaging disjoint winner-take-all outcomes is meaningless. Per-outcome prices come from the venue's last-traded mid; cross-venue values are simple means across contracts on each venue.

## How to use this data

- HTML: https://simplefunctions.dev/odds/rainseam
- JSON: https://simplefunctions.dev/api/public/odds?slug=rainseam

## License

CC-BY-4.0. Attribute "SimpleFunctions" with a link to https://simplefunctions.dev. See https://simplefunctions.dev/legal for terms.