Professor record HVAC

Arturo Castillo Diaz

Joliet Junior College

33 grades3 sections
Grades: 2025–2026
Flunk Score1/100
Needs work
HVAC 120HVAC 120 · all instructors & syllabi

Grade record

HVAC 120 · 3 sections
Average GPA
3.52
Across 33 grades in HVAC 120
91%
A or B
of 33 grades
8.8%
D, F or withdrew
of 34 enrolled
66.7%
A
22
24.2%
B
8
3.0%
C
1
6.1%
D
2
2.9%
W
1
A–F are shares of 33 letter grades · W is a share of all 34 enrolled
Against everyone else who teaches HVAC 120
−2% vs. the HVAC 120 average (3.60 across 2 professors)

How the averages compare

Against other HVAC classes, and against the university

  • 2.97School average
  • 3.06HVAC courses
  • 3.52HVAC 120
Average GPA · Zoomed GPA scale
Lower averageHigher average
3 sections · 2 terms · Spring 2025 – Spring 2026
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