Your own-made climate normals/averages

If every day of the month had the same averages of the coolest day of each month. As you can see, the coolest day of July and August is almost guaranteed to be wet, while the coolest day in November and December will almost certainly be dry.

So, do the "coldest days" in Sheffield correlate closely with the "coldest nights"? Well, actually no for the most part. The months in which the coldest nights most correlate with the coldest days are November and December. These are months of low insolation. However, in summer in particular, the daytime temperatures correlating with the coldest nights are noticeably warmer than in the table made coldest days. Snowfall days are similar to that from the coldest days table also, so snowfall correlates more with cold nights than daytime temps necessarily.

In summer, some of the "coldest nights" in fact saw some rather hot days; such as in August, reaching 27°C.

The climate data presented here, compared to the coldest and warmest days tables, may well be the most pleasing overall; enjoyable for all people with snow to be seen in winter, and lovely summers with no humidity to suffer, and comfortably refreshing nights.



So, you'd think that the warmest nights correlate with the warmest days? You're WRONG.

Infact, it seems that the warmest nights correlate with higher rainfall from July - October, interestingly, as the humidity associated with milder nights in this period produces more rain. This is not evident in May-June, however, which are actually drier. Thunderstorm days are also highly correlated with warmer nights. Winters have close to average or even less rain than average with warmer nights. Clearly, the summer highs are somewhat cooler here than the "warmest days" table. The year as a whole would be wetter than average.

It's what the averages would look like if they were made from the warmest night of each day individually, out of the selection of years.

January then, is made up of the warmest night for each date out of those years' worth of January's, averaged together - along with whatever other weather was recorded on that specific date. It gives an interesting look at how such conditions correlate with other aspects of the weather, such as rainfall.

Yes, yes it does. But alcohol makes the time go faster.

Here are the averages for Sheffield's Driest Days 2018-2022. Of course, with a longer period of years, there would be no rain at all. However this will have to do, and it shows that the driest days are generally warmer in the daytime than the averages in all months except January and December. Night time temperatures are slightly cooler, however than the averages. So, the diurnal range of drier days is larger than that of a typical day. Such days are likelier less cloudy too.



Sheffield wettest days 2018-2022 shows that we produce a climate with slightly milder than average winters and slightly cooler than average summers. The diurnal range is slightly lower than a "normal" year. In summer lots of the rain is correlated with thunderstorms which generally accompany higher than average temperatures. These days counter balance cooler frontal rain dominated days in summer, so the months aren't much cooler than average.

If climates averaged their coolest days (by mean temp) of the month the entire month:

Some more 

Cold Fort Collins looks like what I’d expect, im surprised April isn’t wetter and snowier though. 

Here’s Fort Collins since I moved here. Didn’t include June and July since I haven’t been here in either of those months until now. Experienced exactly 3 of every month now.

Theme is cold January-April and warm August-December. April, and August-October have averaged very dry, March and May have been wet.