In any given year, taken in isolation, the maximums and minimums are totally determined by weather.
All weather taken as a whole globally and over time makes up climate. Although with variations over that time period it is generally seen that the weather as a global whole has been more or less the same over the last 10,000 years or so and has been named the Holocene Period.
Climate change is called that because the expected weather patterns and how they interrelate with the entire global start developing trends that lie outside the normal trends. Not only that but other things such as rising CO2 levels signal that the odds are greatly against returning to what was normal.
We are now in a transition period, new repeating weather cycles are not yet set, other influences such as CO2 levels, melt ice sheets, melting permafrost... are not yet stable to allow for that either to happen any time soon. Ergo climate change.
Going back to the beginning, the weather this year is determining what the maximum will be, but since we are in a state of climate change so is climate change responsible.
The new normal establishing the new climate will not arrive for a few centuries, by then of course minimums will almost always be zero and the maxs will be
The new climate will be
?? too many variables to count many of which will be man's interventions.