Daily Report for 16th December 2016
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| Measure | Value (anomaly) | Time | Month cumul. | Record High | Record Low |
| Minimum Temperature | 7.5 °C (+4.4) | 23:57 | 5.7 °C (+2.3) | 13.2 °C (+10.1), 2015 | -2.3 °C (-5.4), 2010 |
| Maximum Temperature | 10.7 °C (+3.0) | 13:38 | 11.0 °C (+2.8) | 15.0 °C (+7.3), 2015 | 2.6 °C (-5.1), 2009 |
| Mean Temperature | 10.0 °C (+3.7) | 8.5 °C (+2.5) | 13.9 °C, 2015 | 0.1 °C, 2009 | |
| Minimum Humidity | 78% | 18:32 | 72% | 88%, 2013 | 75%, 2017 |
| Maximum Humidity | 81% | 05:22 | 81% | 98%, 2009 | 81%, 2016 |
| Mean Humidity | 80% | 77% | 94%, 2013 | 80%, 2016 | |
| Minimum Pressure | 1019 hPa | 00:01 | 1022 hPa | 1019 hPa, 2016 | 980 hPa, 2011 |
| Maximum Pressure | 1033 hPa | 23:20 | 1026 hPa | 1033 hPa, 2016 | 1001 hPa, 2012 |
| Mean Pressure | 1026 hPa | 1024 hPa | 1026 hPa, 2016 | 992 hPa, 2011 | |
| Mean Wind Speed | 0.6 mph (-4.5) | 3.1 mph (-2.0) | 8.1 mph, 2013 | 0.6 mph, 2016 | |
| Maximum Wind Speed | 4.7 mph | 11:12 | 9.1 mph | 19.7 mph, 2013 | 4.7 mph, 2016 |
| Maximum Gust | 6.3 mph | 00:41 | 13.6 mph | 29.9 mph, 2013 | 6.3 mph, 2016 |
| Mean Wind Direction | SSE | ||||
| Rainfall | 0.0 mm | 8.1 mm (28%) | 8.8 mm, 2013 | ||
| Maximum Hourly Rain | n/a | 4.2, 2018 | |||
| Maximum 10-min Rain | n/a | 2, 2018 | |||
| Maximum Rain Rate | n/a | 24, 2018 | |||
| Minimum Dew Point | 4.1 °C | 23:57 | 1.9 °C | 11.1 °C, 2015 | -5.6 °C, 2010 |
| Maximum Dew Point | 7.2 °C | 10:53 | 7.0 °C | 12.7 °C, 2015 | 2.3 °C, 2009 |
| Mean Dew Point | 6.7 °C | 4.7 °C | 12.0 °C, 2015 | -0.8 °C, 2009 | |
| Measure | Value | Time | Month cumul. | Record High | Record Low |
| Night Minimum (21-09) | * 9.1 °C * | 22:03 | 6.2 °C | 12.6 °C, 2015 | -2.1 °C, 2009 |
| Day Maximum (09-21) | 10.7 °C | 13:38 | 11.0 °C | 15.0 °C, 2015 | 2.6 °C, 2009 |
| Max 10m Temp Rise | 0.1 °C | 02:25 | 0.4 °C | 0.5 °C, 2009 | 0.1 °C, 2016 |
| Max 1hr Temp Rise | 0.4 °C | 02:56 | 1.3 °C | 1.6 °C, 2018 | 0.4 °C, 2016 |
| Max 1hr Hum Rise | 1% | 01:29 | 3% | 8%, 2017 | 1%, 2016 |
| Max 10m Temp Fall | 0.4 °C | 22:31 | 0.3 °C | 0.8 °C, 2009 | 0.2 °C, 2014 |
| Max 1hr Temp Fall | 1.5 °C | 23:07 | 1.0 °C | 2.4 °C, 2010 | 0.6 °C, 2014 |
| Max 1hr Hum Fall | 2% | 22:20 | 4% | 14%, 2010 | 2%, 2009 |
| Max 10m Wind Speed | 3.1 mph | 00:45 | 6.9 mph | 15.0 mph, 2013 | 3.1 mph, 2016 |
| Minimum Feels-like | 7.5 °C | 23:56 | 4.0 °C | 15.4 °C, 2015 | -7.4 °C, 2010 |
| Maximum Feels-like | 10.8 °C | 13:16 | 11.3 °C | 17.6 °C, 2015 | 0.6 °C, 2011 |
| Mean Feels-like | 9.9 °C | 8.2 °C | 16.2 °C, 2015 | -1.2 °C, 2009 | |
| Air-frost Hrs | 0 hrs | 0.3 hrs | 10 hrs, 2009 | 0 hrs, 2011 | |
| Measure | Value (anomaly) | Month cumul. | Record High | Record Low | |
| Temperature Range | 3.2 °C (-1.4) | 5.3 °C (+0.4) | 8.7 °C (+4.1), 2010 | 1.8 °C (-2.8), 2015 | |
| Humidity Range | 3% | 9% | 20%, 2011 | 3%, 2016 | |
| Pressure Range | 14 hPa | 4 hPa | 26 hPa, 2010 | 4 hPa, 2012 | |
| Measure | Value [% of max] | Month cumul. | Record High | Record Low | |
| Sun Hours | 0.3 [4%] | 32 hrs (130%) [28%] | 6.4 [91%], 2014 | 0 [0%], 2010 | |
| Wet Hours | 0 | 11 hrs (34%) [2.9%] | 11, 2009 | 0, 2016 | |
| Cloud Cover | am: Overcast pm: 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