There is a quiet, frustrating poetry in this January problem, and it deserves a closer look. The user's formula works for eleven months, but January breaks because blank cells are being counted as "1." That is not a spreadsheet quirk to shrug off. It is a warning about assumptions baked into the logic we trust.
The real issue is not the month. It is the blank cell. In spreadsheet logic, an empty cell is not "nothing." Depending on the formula and the tool, it can be read as zero, as text, or as a truthy value that passes a test meant for dates. The user set a limit of 2000 rows to avoid updating the formula later, which is a smart habit. But that very flexibility created the blind spot. By leaving the range wide open, they invited the blanks to participate. And blanks, left to their own devices, will always find a way to count as something.
The attempted fix, `=IF(SHEET2!A3:A2000 = " ", 0...)`, makes sense in spirit but misses the mark in practice. A space in quotes is not the same as an empty cell. And wrapping an array range in an IF without an array context often triggers a spill error, which is exactly what happened. This is not a failure of understanding. It is a failure of translation between intent and syntax. The user is not confused about what they want. They are just caught between Excel and Google Sheets conventions, where the same gesture means different things.
What this teaches us is practical and direct. When you automate a range, you must account for the emptiness inside it. Use `COUNTIFS` with a month reference and a second condition that excludes blanks, or wrap the month column in `IF(A3:A2000="", ""...)` before counting. The point is not to memorize a fix. The point is to recognize that blank cells are not neutral placeholders. They are active participants in your formulas, and they will always choose the path that breaks your output.
So before you chase down a phantom January, check your blanks. Ask what they are actually holding. Then build your formula to ignore them explicitly, not assume they will stay quiet. That is the difference between a formula that works and one that only works until you look away.