Daily Report for 17th April 2018
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| Measure | Value (anomaly) | Time | Month cumul. | Record High | Record Low |
| Minimum Temperature | 10.4 °C (+5.5) | 06:33 | 7.3 °C (+2.5) | 10.4 °C (+5.5), 2018 | 1.4 °C (-3.5), 2016 |
| Maximum Temperature | 19.3 °C (+6.6) | 13:38 | 13.2 °C (+1.1) | 19.3 °C (+6.6), 2018 | 10.8 °C (-1.9), 2009 |
| Mean Temperature | 14.7 °C (+6.0) | 10.0 °C (+1.8) | 14.7 °C, 2018 | 6.7 °C, 2016 | |
| Minimum Humidity | 44% | 11:49 | 68% | 94%, 2009 | 34%, 2010 |
| Maximum Humidity | 72% | 03:34 | 90% | 97%, 2009 | 66%, 2014 |
| Mean Humidity | 63% | 82% | 96%, 2009 | 54%, 2014 | |
| Minimum Pressure | 1018 hPa | 04:31 | 1004 hPa | 1024 hPa, 2011 | 993 hPa, 2012 |
| Maximum Pressure | 1026 hPa | 23:56 | 1012 hPa | 1028 hPa, 2010 | 1014 hPa, 2009 |
| Mean Pressure | 1021 hPa | 1008 hPa | 1025 hPa, 2011 | 1006 hPa, 2012 | |
| Mean Wind Speed | 9.0 mph (+4.1) | 5.2 mph (+0.3) | 9.0 mph, 2018 | 2.0 mph, 2010 | |
| Maximum Wind Speed | 19.6 mph | 12:44 | 13.6 mph | 22.3 mph, 2012 | 6.8 mph, 2010 |
| Maximum Gust | 33.4 mph | 15:02 | 21.4 mph | 33.5 mph, 2012 | 9.5 mph, 2010 |
| Mean Wind Direction | SSW | ||||
| Rainfall | 0.0 mm | 34.9 mm (126%) | 7.7 mm, 2009 | ||
| Maximum Hourly Rain | n/a | 2.7, 2009 | |||
| Maximum 10-min Rain | n/a | 1.4, 2009 | |||
| Maximum Rain Rate | n/a | 32.8, 2009 | |||
| Minimum Dew Point | 4.5 °C | 00:43 | 4.7 °C | 7.0 °C, 2009 | -3.9 °C, 2016 |
| Maximum Dew Point | 10.7 °C | 21:21 | 8.8 °C | 11.2 °C, 2013 | 2.8 °C, 2016 |
| Mean Dew Point | 7.6 °C | 6.8 °C | 8.4 °C, 2009 | -1.0 °C, 2016 | |
| Measure | Value | Time | Month cumul. | Record High | Record Low |
| Night Minimum (21-09) | 10.4 °C | 06:33 | 7.4 °C | 10.4 °C, 2018 | 1.4 °C, 2016 |
| Day Maximum (09-21) | 19.3 °C | 13:38 | 13.1 °C | 19.3 °C, 2018 | 10.8 °C, 2009 |
| Max 10m Temp Rise | 0.5 °C | 10:47 | 0.5 °C | 1.1 °C, 2012 | 0.3 °C, 2009 |
| Max 1hr Temp Rise | 2.5 °C | 10:54 | 1.6 °C | 4.9 °C, 2010 | 1.0 °C, 2009 |
| Max 1hr Hum Rise | 7% | 12:47 | 6% | 25%, 2012 | 1%, 2009 |
| Max 10m Temp Fall | 0.5 °C | 16:12 | 0.4 °C | 1.7 °C, 2012 | 0.3 °C, 2009 |
| Max 1hr Temp Fall | 1.0 °C | 16:49 | 1.3 °C | 4.5 °C, 2012 | 0.8 °C, 2009 |
| Max 1hr Hum Fall | 11% | 10:15 | 8% | 31%, 2012 | 1%, 2009 |
| Max 10m Wind Speed | 16.5 mph | 12:37 | 10.2 mph | 16.5 mph, 2018 | 5.3 mph, 2016 |
| Minimum Feels-like | 10.4 °C | 06:22 | 4.4 °C | 10.4 °C, 2018 | -2.0 °C, 2016 |
| Maximum Feels-like | 20.2 °C | 13:48 | 13.8 °C | 20.2 °C, 2018 | 11.8 °C, 2016 |
| Mean Feels-like | 15.3 °C | 9.4 °C | 15.3 °C, 2018 | 5.9 °C, 2016 | |
| Air-frost Hrs | 0 hrs | 0 hrs | 0 hrs, 2009 | 0 hrs, 2009 | |
| Measure | Value (anomaly) | Month cumul. | Record High | Record Low | |
| Temperature Range | 8.9 °C (+1.1) | 5.9 °C (-1.5) | 15.1 °C (+7.3), 2010 | 3.1 °C (-4.7), 2009 | |
| Humidity Range | 28% | 22% | 60%, 2010 | 3%, 2009 | |
| Pressure Range | 8 hPa | 8 hPa | 25 hPa, 2012 | 2 hPa, 2011 | |
| Measure | Value [% of max] | Month cumul. | Record High | Record Low | |
| Sun Hours | 4 [32%] | 37 hrs (49%) [18%] | 12.5 [99%], 2010 | 0 [0%], 2009 | |
| Wet Hours | 0 | 55 hrs (209%) [13%] | 8, 2009 | 0, 2010 | |
| Cloud Cover | am: Mostly Cloudy transitioned to Partly Cloudy pm: Partly Cloudy transitioned to Mostly 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
Large resolution version