| Quick facts | Answer |
|---|---|
| Station | Tulsa International Airport |
| Period | 2000 - 2026-10-16 |
| Average 100°F days/year | 11.8 |
| Most in a year | 44 days (2011) |
| 2025 | 2 days |
| 2026 so far (through 2026-10-16) | 35 days |
| Peak month | Aug |
100°F days in Tulsa, year by year
| Year | Days ≥ 100°F | Hottest day | Note |
|---|---|---|---|
| 2026 | 35 | 106°F | partial (289 days of data) |
| 2025 | 2 | 101°F | |
| 2024 | 6 | 102°F | |
| 2023 | 17 | 105°F | |
| 2022 | 27 | 108°F | |
| 2021 | 6 | 101°F | |
| 2020 | 0 | 99°F | |
| 2019 | 2 | 101°F | |
| 2018 | 4 | 106°F | |
| 2017 | 3 | 101°F | |
| 2016 | 7 | 101°F | |
| 2015 | 3 | 102°F | |
| 2014 | 7 | 102°F | |
| 2013 | 7 | 102°F | |
| 2012 | 38 | 112°F | |
| 2011 | 44 | 113°F | |
| 2010 | 14 | 105°F | |
| 2009 | 14 | 102°F | |
| 2008 | 6 | 104°F | |
| 2007 | 6 | 105°F | |
| 2006 | 23 | 107°F | |
| 2005 | 6 | 104°F | |
| 2004 | 0 | 98°F | |
| 2003 | 18 | 105°F | |
| 2002 | 2 | 101°F | |
| 2001 | 23 | 104°F | |
| 2000 | 22 | 108°F |
Which months bring 100°F days
Average number of 100°F days per month, 2000-2025:
| Month | Avg days |
|---|---|
| Jun | 0.7 |
| Jul | 5.4 |
| Aug | 6.1 |
| Sep | 0.9 |
What it means for spray foam insulation in Tulsa
On a 100-degree day an uninsulated Tulsa attic runs far hotter than the outside air, which is what attic insulation is meant to stop.
How we counted
We downloaded NOAA's daily record for station USW00013968 and counted every day since 2000 whose official high (TMAX) reached 100°F (NOAA stores tenths of a degree Celsius; we converted). Years with fewer than 330 days of data are marked partial and left out of the average.
Use this data
Reporters, bloggers and neighborhood groups are welcome to use these numbers. Please cite NOAA and link to this page. We refresh it from NOAA's files regularly.
