Daily Report for 21st July 2018
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| Measure | Value (anomaly) | Time | Month cumul. | Record High | Record Low |
| Minimum Temperature | 16.8 °C (+3.0) | 06:07 | 15.1 °C (+2.0) | 16.8 °C (+3.0), 2018 | 10.9 °C (-2.9), 2012 |
| Maximum Temperature | 28.3 °C (+5.6) | 17:15 | 27.1 °C (+4.8) | 28.3 °C (+5.6), 2018 | 19.3 °C (-3.4), 2011 |
| Mean Temperature | 22.4 °C (+4.3) | 21.3 °C (+3.4) | 22.4 °C, 2018 | 14.9 °C, 2011 | |
| Minimum Humidity | 39% | 16:52 | 39% | 67%, 2011 | 34%, 2010 |
| Maximum Humidity | 90% | 06:51 | 84% | 95%, 2009 | 76%, 2010 |
| Mean Humidity | 64% | 61% | 88%, 2011 | 53%, 2010 | |
| Minimum Pressure | 1014 hPa | 03:48 | 1018 hPa | 1020 hPa, 2012 | 1003 hPa, 2009 |
| Maximum Pressure | 1016 hPa | 23:26 | 1021 hPa | 1027 hPa, 2012 | 1009 hPa, 2010 |
| Mean Pressure | 1015 hPa | 1019 hPa | 1023 hPa, 2012 | 1007 hPa, 2010 | |
| Mean Wind Speed | 1.5 mph (-2.8) | 3.1 mph (-1.2) | 6.9 mph, 2015 | 1.5 mph, 2018 | |
| Maximum Wind Speed | 6.6 mph | 10:44 | 10.2 mph | 16.0 mph, 2017 | 6.6 mph, 2018 |
| Maximum Gust | 10.4 mph | 11:24 | 15.7 mph | 24.1 mph, 2017 | 10.2 mph, 2012 |
| Mean Wind Direction | WNW | ||||
| Rainfall | 0.0 mm | 16.8 mm (59%) | 4.1 mm, 2011 | ||
| Maximum Hourly Rain | n/a | 3.6, 2011 | |||
| Maximum 10-min Rain | n/a | 1.6, 2011 | |||
| Maximum Rain Rate | n/a | 30, 2011 | |||
| Minimum Dew Point | 12.9 °C | 16:28 | 10.3 °C | 12.9 °C, 2018 | 6.8 °C, 2012 |
| Maximum Dew Point | 16.6 °C | 09:48 | 15.2 °C | 17.7 °C, 2009 | 12.4 °C, 2017 |
| Mean Dew Point | 14.8 °C | 12.8 °C | 15.5 °C, 2014 | 9.7 °C, 2012 | |
| Measure | Value | Time | Month cumul. | Record High | Record Low |
| Night Minimum (21-09) | 16.8 °C | 06:09 | 15.1 °C | 17.9 °C, 2010 | 10.9 °C, 2012 |
| Day Maximum (09-21) | 28.3 °C | 17:16 | 27.1 °C | 28.3 °C, 2018 | 19.3 °C, 2011 |
| Max 10m Temp Rise | 0.7 °C | 08:36 | 0.7 °C | 0.9 °C, 2012 | 0.4 °C, 2011 |
| Max 1hr Temp Rise | 3.3 °C | 09:11 | 2.6 °C | 3.3 °C, 2018 | 1.5 °C, 2011 |
| Max 1hr Hum Rise | 9% | 18:36 | 12% | 16%, 2010 | 6%, 2013 |
| Max 10m Temp Fall | 0.5 °C | 12:35 | 0.6 °C | 0.6 °C, 2009 | 0.3 °C, 2016 |
| Max 1hr Temp Fall | 2.1 °C | 18:36 | 2.2 °C | 2.3 °C, 2012 | 1.1 °C, 2016 |
| Max 1hr Hum Fall | 16% | 09:09 | 13% | 17%, 2012 | 7%, 2009 |
| Max 10m Wind Speed | 4.6 mph | 10:51 | 7.6 mph | 11.8 mph, 2015 | 3.4 mph, 2009 |
| Minimum Feels-like | 20.6 °C | 05:53 | 17.4 °C | 20.6 °C, 2018 | 12.0 °C, 2012 |
| Maximum Feels-like | 31.7 °C | 17:08 | 30.0 °C | 31.7 °C, 2018 | 21.8 °C, 2012 |
| Mean Feels-like | 26.2 °C | 24.1 °C | 26.2 °C, 2018 | 17.1 °C, 2012 | |
| Air-frost Hrs | 0 hrs | 0 hrs | 0 hrs, 2009 | 0 hrs, 2009 | |
| Measure | Value (anomaly) | Month cumul. | Record High | Record Low | |
| Temperature Range | 11.5 °C (+2.6) | 12.0 °C (+2.8) | 11.5 °C (+2.6), 2018 | 6.2 °C (-2.7), 2011 | |
| Humidity Range | 51% | 45% | 51%, 2018 | 27%, 2011 | |
| Pressure Range | 3 hPa | 4 hPa | 11 hPa, 2009 | 3 hPa, 2018 | |
| Measure | Value [% of max] | Month cumul. | Record High | Record Low | |
| Sun Hours | 6 [41%] | 191 hrs (151%) [61%] | 12 [82%], 2010 | 0.2 [1%], 2011 | |
| Wet Hours | 0 | 4.5 hrs (20%) [0.9%] | 4, 2009 | 0, 2010 | |
| Cloud Cover | Partly Cloudy | ||||
| Events | None | ||||
| Comments | - | ||||
| 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
Full resolution individual images at up-to 5 minute intervals