- Oklahoma state record for 24-hour snowfall happened February 9, 2011
- 27" in Spavinaw recorded
- All-time Oklahoma record for lowest temperature was -31° in Nowata on February 10, 2011
2011 would go on record to be 3rd snowiest year, with February of 2011 being ranked at #1 for the snowiest Februaries.
The month started with record snowfall in Tulsa. About a week later, more snow and drastically cold temperatures would roll in.
A strong storm system moved through the area allowing for cold arctic air to spill south into Green Country. This storm wasn't as strong as the system that moved through just a week prior, but a thin snow band remained almost stationary across northern parts of Green Country.
The western part of the snow band had snowfall totals 12 to 18 inches while eastern parts had 18 to 25 inches. Snowfall totals decreased drastically outside this band to less than 10 inches in some areas and less than 6 inches in far southeast Oklahoma.
The Oklahoma record for most snowfall received in 24 hours was set in the eastern part of that small band with 27 inches in Spavinaw.
After the snowfall, temperatures remained cold. More cold air moved in with a high-pressure system sitting over eastern Oklahoma. Clear skies and calm winds allowed temperatures to plummet overnight.
On the morning of February 10, 2011 - many places set record lows:
- Bartlesville set their all-time record low with a reading of -28°F
- Tulsa had a record low for the day of -12°F (tied for 5th coldest temp ever recorded in Tulsa)
- McAlester also set a record low of -4°F
The Oklahoma Mesonet site in Nowata measured a temperature of -31°F at 7:40 a.m., breaking the previous record of -27°F in Vinita (1905), Watts (1930) and Guthrie (1947).
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