June 5 (Reuters) - Average daily volume (ADV) in U.S. natural gas futures and options on the New York Mercantile Exchange (NYMEX) rose in May from a year earlier, data from its owner CME Group showed.

For the month, futures ADV was 537,639 contracts, up 38.1% from a year ago. Futures ADV hit a monthly record of 677,112 contracts in November 2018.

So far in 2024, futures ADV was 516,288, up 24.4% from a year earlier. Futures ADV hit an annual record of 477,468 contracts in 2020.

Financially settled European-style options ADV was 212,503 in May, up 72.3% from a year earlier. Options ADV hit a monthly record of 273,679 in February 2024.

So far in 2024, financially settled European-style options ADV have risen to 218,402, up 76.5% from the prior year. Options ADV hit an annual high of 136,873 contracts in 2023. (Reporting by Scott DiSavino; Editing by Paul Simao)