| Month | days | ACU with whitening | ACU without whitening | ACU with air temperature |
| December | 17 - 31 | −32.75 | −53.50 | −0.250 |
| January | 1 - 10 | −41.00 | −49.75 | −19.75 |
| 11 - 20 | −13.50 | −31.75 | −0.50 | |
| 21 - 31 | −2.25 | −17.75 | 16.75 | |
| February | 1 - 10 | −27.75 | −47.25 | −3.75 |
| 11 - 20 | −36.00 | −49.5 | −20.25 | |
| 21 - 28 | −42.50 | −44.00 | −26.50 | |
| March | 1 - 10 | −50.50 | −51.00 | −48.50 |
|
| total | −246.25 | −344.50 | −102.75 |