CHEM · UC Santa BarbaraHistorical grades
CHEM 109B
A clearer picture of the classes ahead.
68 published recordsFall 2009 — Summer 2026
Look a little closer
All available historyThe grade picture.
2.50Average GPA weighted · out of 4.00
20.4%A-range grades A+, A, and A−
17.0%D / F grades D+, D, D−, and F
17,227Letter grades 68 published records
Grade distribution
All instructors · All quartersPlus and minus grades are grouped together. 5 reported P/NP or S/U grades are excluded from GPA and percentages. Counts reflect grades before optional grading conversions in the original source.
Quarter by quarter
54 quarters
| Quarter | Average GPA | A range | D / F | Letter grades |
|---|---|---|---|---|
| Summer 2026 | 2.51 | 19.8% | 16.0% | 106 |
| Spring 2026 | 2.49 | 21.8% | 14.7% | 395 |
| Winter 2026 | 2.79 | 28.9% | 11.1% | 485 |
| Summer 2025 | 2.52 | 12.9% | 5.0% | 101 |
| Spring 2025 | 2.34 | 12.8% | 16.7% | 383 |
| Winter 2025 | 2.55 | 25.2% | 15.6% | 584 |
| Summer 2024 | 2.43 | 12.8% | 15.2% | 125 |
| Spring 2024 | 2.17 | 5.6% | 19.9% | 342 |
| Winter 2024 | 2.67 | 28.9% | 15.9% | 592 |
| Summer 2023 | 2.12 | 14.0% | 30.2% | 43 |
| Spring 2023 | 2.33 | 6.7% | 15.7% | 299 |
| Winter 2023 | 2.68 | 23.1% | 11.8% | 567 |
| Fall 2022 | 2.46 | 10.7% | 7.1% | 28 |
| Summer 2022 | 2.48 | 10.0% | 20.0% | 20 |
| Spring 2022 | 2.41 | 10.6% | 14.6% | 254 |
| Winter 2022 | 2.41 | 12.7% | 17.9% | 599 |
| Fall 2021 | 2.75 | 29.9% | 10.4% | 77 |
| Spring 2021 | 2.78 | 18.8% | 9.1% | 197 |
| Winter 2021 | 3.15 | 39.8% | 2.6% | 784 |
| Fall 2020 | 2.23 | 22.6% | 28.3% | 53 |
| Summer 2020 | 2.57 | 15.3% | 12.5% | 72 |
| Spring 2020 | 3.37 | 59.2% | 2.0% | 306 |
| Winter 2020 | 3.07 | 37.8% | 4.8% | 609 |
| Fall 2019 | 2.38 | 16.8% | 20.2% | 119 |
| Spring 2019 | 2.53 | 20.0% | 13.2% | 340 |
| Winter 2019 | 2.60 | 19.2% | 10.9% | 541 |
| Fall 2018 | 1.91 | 9.1% | 34.8% | 132 |
| Spring 2018 | 2.22 | 19.0% | 30.8% | 321 |
| Winter 2018 | 2.54 | 20.5% | 15.9% | 542 |
| Fall 2017 | 2.64 | 18.8% | 7.7% | 181 |
| Spring 2017 | 2.27 | 16.6% | 23.4% | 410 |
| Winter 2017 | 2.20 | 16.7% | 28.4% | 610 |
| Fall 2016 | 2.61 | 22.4% | 8.3% | 156 |
| Spring 2016 | 2.42 | 20.7% | 22.3% | 328 |
| Winter 2016 | 2.38 | 18.7% | 22.7% | 625 |
| Fall 2015 | 2.52 | 18.8% | 13.6% | 176 |
| Spring 2015 | 2.46 | 19.1% | 19.7% | 371 |
| Winter 2015 | 2.35 | 18.4% | 23.3% | 713 |
| Fall 2014 | 2.35 | 19.2% | 25.1% | 167 |
| Spring 2014 | 2.30 | 15.1% | 24.4% | 311 |
| Winter 2014 | 2.51 | 16.9% | 14.7% | 685 |
| Fall 2013 | 1.63 | 15.1% | 46.2% | 119 |
| Spring 2013 | 2.55 | 16.3% | 12.2% | 288 |
| Winter 2013 | 2.45 | 13.2% | 11.5% | 575 |
| Fall 2012 | 2.19 | 13.8% | 23.1% | 130 |
| Spring 2012 | 2.32 | 14.1% | 21.8% | 234 |
| Winter 2012 | 2.44 | 20.3% | 19.3% | 507 |
| Fall 2011 | 2.25 | 13.6% | 25.2% | 147 |
| Spring 2011 | 2.11 | 15.8% | 33.2% | 247 |
| Winter 2011 | 2.49 | 16.8% | 13.1% | 548 |
| Fall 2010 | 2.08 | 10.7% | 28.9% | 159 |
| Spring 2010 | 2.32 | 16.8% | 20.4% | 196 |
| Winter 2010 | 2.31 | 19.6% | 25.6% | 199 |
| Fall 2009 | 1.90 | 9.3% | 41.1% | 129 |
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About the numbers
Historical grade data from the Daily Nexus, obtained from UCSB’s Registrar through public records requests. Available records extend through Summer 2026. Course history is not a list of current offerings. Dataset retrieved .
GPA and grade percentages use letter grades only, weighted by the number of grades. A range includes A+, A, and A−. Repeated enrollments count separately. Past grades don’t predict your result or a course’s workload. How to read grade distributions ↗