December 2023 Report – Temperature and Humidity in York

This is the report detailing the temperature and humidity in York for December 2023, using our own bespoke remote monitoring equipment, we track a peak winter full month of weather focusing seasonal variances.

We measure, chart and contrast indoor and outdoor hygrometer readings throughout this peak winter month in which temperatures dropped below zero again. We analyse details, averages, highs and lows seen across the month. This is a month where temperatures remained low, at a time of year when flood damage in York can occur.

Historical reports we have produced are in a separate hygrometer section of our blog – you can see last month’s Temperature and Humidity in York – November 2023 report

Let’s start with the headline figures and a summary:

• December 2023 was cold again in York, with average outdoor temperature at 6.7°C
• This was more so in the first weeks of the months, with averages around freezing
• The max outdoor temperature in York was 14.4°C and the minimum was -2.7°C
• The high temperature actually occurred on Christmas Eve a very mild day!
• This meant an outdoor range (between the high and low) of 17.1°C
• The average indoor temperature was at 17.6°C (helped by central heating)
• The maximum indoor temperature in York was 19.3°C and the minimum was 15.2°C
• The high was on Christmas Day when there were many people indoors celebrating
• Again, the minimum indoor temperature was above the high for outdoors
• This leads to an indoor range of just 4.1°C which relatively narrow

Hygrometer Temperature Trends – December 2023

The graph trend above shows the full, detailed readings across the full month, from which the December 2023 highs, lows, range and averages were measured. It shows daily variances and changes in temperature with typical highs during the day and lows during the night. As we covered earlier, the temperatures at the start of the month were generally lower than the latter weeks of 2023 approaching the New Year of 2024.

On this graph, you can clearly see the outdoor temperature peak in York on 24rd December. Equally, the lowest temperature late in the month on the morning of 2nd December.

Again, as we covered earlier, the indoor temperatures stayed within a relatively narrow (and warm) temperature band. Undoubtedly, this was supported by the central heating (and thermostat) managing that.

Humidity in York – December 2023

Here are the key points from the humidity readings from York in December 2023:

• December 2023 had an average outside relative humidity of 89.4%
• This is above previous months in a relatively colder month, in a deep winter month
• The peak outside humidity in York was 99% and the minimum was 64%
• This means an outdoor range (between the top and bottom) of 34%
• As seen previously, lower humidity happened when temperatures were higher
• The average indoor relative humidity was understandably lower at 52.9%
• The lowest indoor humidity in York was 62% and the highest was 43%
• This means an indoor range of just 19% which is also less than outdoor

On this, see our guide that explaining how to Reduce Humidity in a House

Hygrometer Humidity Trends – December 2023

The trended graph above shows the useful data set from which December 2023 highs, lows, range and averages were evaluated. The outdoor relative humidity is higher in general in the most part because temperatures are lower. This is a key factor.

This time of year often corresponds with increased demand for Damp and Mould Problems

Temperature Ranges in York – December 2023

Previously, we referenced to the comparison between indoor vs outdoor temperature ranges in December 2023 and the graphs above help to show this in more detail. As you can see, the outside (top chart) measurements were in a much wider range than the comparable inside (bottom chart) readings and more volatile too, this is to be expected in a thermostatically controlled household / domestic indoor environment.

The more detailed range chart below helps to understand this further:

As you can see, the inside temperature readings taken from the hygrometer readings for December 2023 are very closely grouped with over 60% of the readings being at 18°C (rounded to the nearest degree). In contrast, the outside readings are significantly more widely spread across a much wider range.

This is also repeated similarly with the relative humidity readings:

Temperature and Humidity by Time of Day – December 2023

The ultimate set of informative data for December ’23 compares at how different times of day affect indoor and outdoor readings taken by the hygrometer data loggers. The four regular groups are:

• Morning – 6am to Noon
• Afternoon – Noon to 6pm
• Evening – 6pm to Midnight
• Night – Midnight to 6am

As you would expect, usually the afternoon was generally the warmer part of the day (not dramatically though!) in York during December 2023 with the night and following morning being the colder, with evening readings fractionally warmer on average vs the morning. This was generally the opposite of relative humidity for the reasons mentioned earlier.

As we said last month, as the winter weather takes hold, the variances are lower in different parts of the day especially in comparison to summer months.

We can assist you with the following:

• Property Damage Management Services in York
• Black Mould Removal in York
• Flood Property Damage Service in York
• Water Damage Services in York
• Water Leak Detection Service in York

Temperature and Humidity Measurement – Other Useful Info

Here are a few other posts related to this particular subject that you may find useful to view:

• Thermal Imaging Leak Detection
• Boiler Pressure Continually Dropping
• Ultrasonic Leak Detection
• Plumbing Leaks
• Ceiling Leaks

If you have a water leak contact and are interested in our trace and access services within Yorkshire our local friendly and experienced team for help.

At Rainbow Restoration – York & Yorkshire Coast we are experts in Leak Detection, including business or commercial water leaks, so if you need help finding a water leak or getting your property back to normal after a water damage or a flood, get in touch with our friendly local team who will be happy to help you with this. We are based in York and help with leak detection services in York.

---