Daily Report for 26th December 2018
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| Measure | Value (anomaly) | Time | Month cumul. | Record High | Record Low |
| Minimum Temperature | 4.3 °C (+1.4) | 23:56 | 5.1 °C (+1.8) | 14.0 °C (+11.1), 2015 | -4.5 °C (-7.4), 2010 |
| Maximum Temperature | 9.3 °C (+2.0) | 13:39 | 9.9 °C (+1.9) | 14.9 °C (+7.6), 2015 | 2.5 °C (-4.8), 2010 |
| Mean Temperature | 7.9 °C (+1.7) | 7.8 °C (+1.9) | 14.4 °C, 2015 | -1.2 °C, 2010 | |
| Minimum Humidity | 86% | 19:53 | 78% | 86%, 2009 | 52%, 2016 |
| Maximum Humidity | 95% | 04:03 | 93% | 98%, 2009 | 82%, 2016 |
| Mean Humidity | 91% | 87% | 97%, 2013 | 68%, 2016 | |
| Minimum Pressure | 1028 hPa | 23:58 | 1010 hPa | 1031 hPa, 2011 | 979 hPa, 2017 |
| Maximum Pressure | 1033 hPa | 00:01 | 1019 hPa | 1042 hPa, 2016 | 999 hPa, 2013 |
| Mean Pressure | 1031 hPa | 1014 hPa | 1032 hPa, 2011 | 993 hPa, 2017 | |
| Mean Wind Speed | 1.8 mph (-3.3) | 5.4 mph (+0.3) | 11.3 mph, 2015 | 1.8 mph, 2018 | |
| Maximum Wind Speed | 5.8 mph | 09:21 | 14.0 mph | 20.6 mph, 2015 | 5.8 mph, 2018 |
| Maximum Gust | 10.4 mph | 12:30 | 22.6 mph | 39.3 mph, 2013 | 10.4 mph, 2018 |
| Mean Wind Direction | SW | ||||
| Rainfall | 0.2 mm | 55.8 mm (119%) | 10.7 mm, 2014 | ||
| Maximum Hourly Rain | 0.2 mm | 3.4 mm, 2017 | |||
| Maximum 10-min Rain | 0.2 mm | 1.0 mm, 2014 | |||
| Maximum Rain Rate | n/a | 18, 2014 | |||
| Minimum Dew Point | 3.0 °C | 23:55 | 3.1 °C | 9.2 °C, 2015 | -6.3 °C, 2010 |
| Maximum Dew Point | 7.6 °C | 13:16 | 7.9 °C | 12.4 °C, 2015 | -0.8 °C, 2010 |
| Mean Dew Point | 6.5 °C | 5.6 °C | 10.5 °C, 2015 | -3.9 °C, 2010 | |
| Measure | Value | Time | Month cumul. | Record High | Record Low |
| Night Minimum (21-09) | * 7.3 °C * | 01:51 | 6.0 °C | 14.1 °C, 2015 | -4.5 °C, 2010 |
| Day Maximum (09-21) | 9.3 °C | 13:43 | 9.8 °C | 14.9 °C, 2015 | 1.3 °C, 2010 |
| Max 10m Temp Rise | 0.2 °C | 03:36 | 0.3 °C | 0.5 °C, 2010 | 0.1 °C, 2015 |
| Max 1hr Temp Rise | 0.5 °C | 09:55 | 1.1 °C | 1.7 °C, 2010 | 0.3 °C, 2015 |
| Max 1hr Hum Rise | 5% | 22:10 | 5% | 9%, 2017 | 2%, 2011 |
| Max 10m Temp Fall | 0.4 °C | 21:07 | 0.4 °C | 1.2 °C, 2016 | 0.2 °C, 2009 |
| Max 1hr Temp Fall | 1.5 °C | 21:45 | 1.1 °C | 3.3 °C, 2016 | 0.4 °C, 2015 |
| Max 1hr Hum Fall | 2% | 09:44 | 6% | 19%, 2013 | 2%, 2018 |
| Max 10m Wind Speed | 4.5 mph | 12:29 | 10.5 mph | 16.2 mph, 2013 | 4.5 mph, 2018 |
| Minimum Feels-like | 4.0 °C | 22:05 | 2.3 °C | 14.9 °C, 2015 | -9.4 °C, 2010 |
| Maximum Feels-like | 9.5 °C | 13:29 | 10.4 °C | 17.0 °C, 2015 | 2.0 °C, 2010 |
| Mean Feels-like | 7.2 °C | 6.6 °C | 15.9 °C, 2015 | -2.4 °C, 2010 | |
| Air-frost Hrs | 0 hrs | 0.1 hrs | 13 hrs, 2010 | 0 hrs, 2009 | |
| Measure | Value (anomaly) | Month cumul. | Record High | Record Low | |
| Temperature Range | 5.0 °C (+0.6) | 4.8 °C (+0.1) | 9.4 °C (+5.0), 2016 | 0.9 °C (-3.5), 2015 | |
| Humidity Range | 9% | 15% | 30%, 2016 | 9%, 2018 | |
| Pressure Range | 5 hPa | 10 hPa | 33 hPa, 2014 | 3 hPa, 2011 | |
| Measure | Value [% of max] | Month cumul. | Record High | Record Low | |
| Sun Hours | 0 [0%] | 52 hrs (128%) [28%] | 5 [71%], 2017 | 0 [0%], 2014 | |
| Wet Hours | 1 | 63 hrs (121%) [10%] | 8, 2014 | 0, 2010 | |
| Cloud Cover | Overcast | ||||
| Events | None | ||||
| Comments | possible o.night Drizzle | ||||
| Extra Comments | |||||
| Issues | None known | ||||
| Observer Absent? | No | ||||
| Pond Temperature (Heath) | 0.0 °C | ||||
- Notes
- Times of extremes are computed using the midpoint of the longest continuous period at that extreme value.
Cumulative anomalies are reported according to the expected value for the month-to-date rather than month-end.
Sun hrs, Wet hrs, Cloud cover and Events are based on manual equipment/observations (entered with a delay of 1-10 days); their reliablity is questionable and they are provided for interest only.
Daily Graph of Conditions
Webcam Summary of Cloud Conditions
Full resolution individual images at up-to 5 minute intervals