Daily Report for 30th May 2018
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| Measure | Value (anomaly) | Time | Month cumul. | Record High | Record Low |
| Minimum Temperature | 12.5 °C (+2.5) | 05:48 | 9.1 °C (+0.9) | 15.0 °C (+5.0), 2017 | 7.3 °C (-2.7), 2015 |
| Maximum Temperature | 20.1 °C (+1.8) | 17:51 | 20.4 °C (+3.8) | 25.4 °C (+7.1), 2012 | 15.1 °C (-3.2), 2013 |
| Mean Temperature | 15.6 °C (+2.2) | 14.8 °C (+2.3) | 19.2 °C, 2012 | 12.2 °C, 2013 | |
| Minimum Humidity | 80% | 14:59 | 49% | 80%, 2018 | 30%, 2009 |
| Maximum Humidity | 95% | 02:49 | 90% | 97%, 2013 | 81%, 2015 |
| Mean Humidity | 90% | 70% | 90%, 2018 | 55%, 2015 | |
| Minimum Pressure | 1013 hPa | 04:01 | 1016 hPa | 1025 hPa, 2009 | 1006 hPa, 2010 |
| Maximum Pressure | 1015 hPa | 22:00 | 1022 hPa | 1028 hPa, 2009 | 1013 hPa, 2011 |
| Mean Pressure | 1014 hPa | 1019 hPa | 1026 hPa, 2009 | 1010 hPa, 2011 | |
| Mean Wind Speed | 1.6 mph (-3.1) | 3.8 mph (-0.9) | 8.1 mph, 2019 | 1.6 mph, 2018 | |
| Maximum Wind Speed | 7.0 mph | 01:00 | 11.3 mph | 19.1 mph, 2019 | 7.0 mph, 2018 |
| Maximum Gust | 12.7 mph | 00:00 | 18.2 mph | 27.6 mph, 2019 | 12.7 mph, 2018 |
| Mean Wind Direction | NE | ||||
| Rainfall | 0.4 mm | 38.7 mm (78%) | 5.1 mm, 2013 | ||
| Maximum Hourly Rain | 0.4 mm | 02:12 | 2.0 mm, 2013 | ||
| Maximum 10-min Rain | 0.2 mm | 0.6 mm, 2013 | |||
| Maximum Rain Rate | 0.7 mm/h | 02:12 | 2.8 mm/h, 2013 | ||
| Minimum Dew Point | 11.7 °C | 06:47 | 6.3 °C | 11.7 °C, 2018 | 1.2 °C, 2015 |
| Maximum Dew Point | 17.0 °C | 17:28 | 11.8 °C | 17.0 °C, 2018 | 6.3 °C, 2015 |
| Mean Dew Point | 13.9 °C | 8.9 °C | 13.9 °C, 2018 | 3.3 °C, 2015 | |
| Measure | Value | Time | Month cumul. | Record High | Record Low |
| Night Minimum (21-09) | 12.5 °C | 05:48 | 9.4 °C | 15.0 °C, 2017 | 7.3 °C, 2015 |
| Day Maximum (09-21) | 20.1 °C | 17:53 | 20.4 °C | 25.4 °C, 2012 | 15.1 °C, 2013 |
| Max 10m Temp Rise | 0.5 °C | 12:37 | 0.7 °C | 0.9 °C, 2009 | 0.4 °C, 2014 |
| Max 1hr Temp Rise | 2.1 °C | 12:56 | 2.8 °C | 3.4 °C, 2009 | 1.2 °C, 2016 |
| Max 1hr Hum Rise | 5% | 16:43 | 10% | 22%, 2012 | 4%, 2013 |
| Max 10m Temp Fall | 0.3 °C | 15:50 | 0.6 °C | 1.0 °C, 2012 | 0.2 °C, 2016 |
| Max 1hr Temp Fall | 1.4 °C | 21:58 | 2.1 °C | 3.2 °C, 2012 | 0.9 °C, 2016 |
| Max 1hr Hum Fall | 7% | 13:00 | 14% | 20%, 2012 | 7%, 2018 |
| Max 10m Wind Speed | 4.9 mph | 01:08 | 8.4 mph | 12.6 mph, 2019 | 4.9 mph, 2018 |
| Minimum Feels-like | 14.6 °C | 05:48 | 8.6 °C | 17.2 °C, 2017 | 4.7 °C, 2015 |
| Maximum Feels-like | 25.3 °C | 17:52 | 22.3 °C | 27.5 °C, 2019 | 16.7 °C, 2014 |
| Mean Feels-like | 19.0 °C | 15.8 °C | 22.1 °C, 2019 | 12.1 °C, 2015 | |
| Air-frost Hrs | 0 hrs | 0 hrs | 0 hrs, 2009 | 0 hrs, 2009 | |
| Measure | Value (anomaly) | Month cumul. | Record High | Record Low | |
| Temperature Range | 7.6 °C (-0.7) | 11.3 °C (+2.9) | 14.3 °C (+6.0), 2020 | 4.4 °C (-3.9), 2013 | |
| Humidity Range | 15% | 40% | 60%, 2009 | 15%, 2018 | |
| Pressure Range | 2 hPa | 5 hPa | 10 hPa, 2010 | 1 hPa, 2012 | |
| Measure | Value [% of max] | Month cumul. | Record High | Record Low | |
| Sun Hours | 0.5 [3%] | 241 hrs (132%) [57%] | 14.8 [100%], 2020 | 0 [0%], 2014 | |
| Wet Hours | 1 [Mean rain rate: 0.4 mm/h] | 29 hrs (76%) [4.1%] | 5, 2013 | 0, 2009 | |
| Cloud Cover | am: Overcast pm: Overcast with periods of Mostly Cloudy | ||||
| Events | None | ||||
| Comments | o.night Showers | ||||
| Extra Comments | |||||
| Issues | None known | ||||
| Observer Absent? | Yes - observations may be unreliable | ||||
| 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
Large resolution version