MONROE-The following programs are sponsored by the Monroe Joint Park and Recreation Commission: Registration for Saturday Morning Playgroup, Smith's Clove Park. For toddlers 3-4, potty trained a must. Program begins Feb. 5. Class time: 10 - 11:30 a.m. Call 783-9108 to register or get more information. Monroe Ski Nights at Sterling Forest Ski Center, Tuxedo, Saturdays, Jan. 22 and Feb. 26, from 5 - 10 p.m. Group discounts for those showing proof of residency. Call ski center for more information, 351-2163. Monroe Ski Day at Mount Peter, Warwick. Sunday, Feb. 13, from 8:30 a.m. - 5 p.m. Group discounts apply for those showing proof of residency. Call ski center for more information, 986-4940. Ice Skating at the Pond at Smith's Clove Park. Every Saturday in February. Times TBA. Weather permitting; only when green flag flies. Hot beverages available in park office. Look for signs. Bring own skates, every child must be accompanied by an adult. Call park phone line for information: 783-9108.