Service Outage Alert: For 24 hours beginning at 11 a.m. on Monday, Feb. 20 and Feb. 26 from 8:30 - 9:30 p.m., all web services requiring your library card to log in will be unavailable during routine maintenance. More information.
The coldest month in Tulsa is January, with an average daily high of 46 degrees and a low of 26 degrees Fahrenheit. The warmest month is July or August with an average daily high of 94 degrees and a low of 71 degrees Fahrenheit.
More information such as sunrise and sunset tables, daily temperatures (F6 link), rain fall, snow fall, and wind speeds for Tulsa can also be found at the National Weather Service - Tulsa web site.
Source: National Weather Service web site