TOTAL VOLUME:

$134.2b

24H VOL:

$130,522,377

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,438,389,636

404,028

Markets across

30,214

events

MATCHED EVENTS:

2,681

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Lowest temperature in Philadelphia on Jul 31, 2026?
kalshi

Lowest temperature in Philadelphia on Jul 31, 2026?

Volume:
$10,639

71° or above

 - Kalshi

71° or above - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Aug 1, 2026

Closed: Aug 1, 1:00 AM EST

kalshi

Kalshi

View
Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

71° or above

View
100%
Yes 100¢No 0¢
100¢
N/A
$5,419
N/A
N/A
$3,283
Settled
Yes
kalshi

65° to 66°

0%
Yes 0¢No 100¢
100¢
N/A
$1,927
N/A
N/A
$1,059
Settled
No
kalshi

69° to 70°

0%
Yes 0¢No 100¢
100¢
N/A
$1,467
N/A
N/A
$402
Settled
No
kalshi

63° to 64°

0%
Yes 0¢No 100¢
100¢
N/A
$881
N/A
N/A
$881
Settled
No
kalshi

67° to 68°

0%
Yes 0¢No 100¢
100¢
N/A
$607
N/A
N/A
$486
Settled
No
kalshi

62° or below

0%
Yes 0¢No 100¢
100¢
N/A
$337
N/A
N/A
$337
Settled
No
Total markets: 6

Description

This event tracks the lowest nighttime temperature in Philadelphia on a specific date next year. The outcome depends entirely on official government weather records, making it a straightforward test of actual climate conditions rather than predictions or models.

Kalshi

All markets resolve based solely on the official minimum temperature recorded by the National Weather Service's Climatological Report (Daily) for Philadelphia, PA on July 31, 2026. Each market corresponds to a specific temperature range: below 63°F, 63-64°F, 65-66°F, 67-68°F, 69-70°F, or above 70°F. The exact temperature value from the NWS report determines the resolving market, with no consideration for preliminary or third-party data sources. Traders must rely on the final, official NWS data once it becomes available, as preliminary reports may undergo revisions or corrections. The rules emphasize that while external weather services may offer guidance, only the NWS report serves as the binding authority for resolution.