Lamont County Monthly Weather Averages
| Month | High/Low (Celsius) | Days with Precipitation |
| January | -5/-15 | 4 days |
| February | -4/-15 | 3 days |
| March | 2/-8 | 3 days |
| April | 11/-1 | 4 days |
| May | 17/5 | 6 days |
| June | 20/9 | 9 days |
| July | 22/11 | 9 days |
| August | 22/10 | 8 days |
| September | 16/5 | 6 days |
| October | 10/-1 | 4 days |
| November | -1/-10 | 4 days |
| December | -6/-15 | 4 days |
Source: NOAA