Monthly Report for December 2017
| <<Previous Month | Reset | Next Month>> |
| Weather Summary | ||||
| Measure | Mean / Sum (anomaly) | Min | Max | Mean Time |
| Minimum Temperature | 3.3 °C (-0.3) | -2.4 °C | 9.8 °C | 10:57 |
| Maximum Temperature | 8.0 °C (-0.2) | 2.3 °C | 13.7 °C | 13:30 |
| Mean Temperature | 5.7 °C (-0.3) | 0.9 °C | 10.7 °C | |
| Minimum Humidity | 79% | 69% | 94% | 15:18 |
| Maximum Humidity | 94% | 83% | 98% | 11:59 |
| Mean Humidity | 88% | 75% | 96% | |
| Minimum Pressure | 1008 hPa | 972 hPa | 1035 hPa | 11:30 |
| Maximum Pressure | 1019 hPa | 993 hPa | 1037 hPa | 11:46 |
| Mean Pressure | 1013 hPa | 982 hPa | 1036 hPa | |
| Mean Wind Speed | 5.8 mph (+0.7) | 2.5 mph | 10.9 mph | |
| Maximum Wind Speed | 13.8 mph | 7.1 mph | 25.2 mph | 12:07 |
| Maximum Gust | 22.4 mph | 10.4 mph | 43.8 mph | 10:46 |
| Mean Wind Direction | SW | N | NNW | |
| Rainfall | 97.3 mm (171%) | 0.0 mm | 20.5 mm | |
| Maximum Hourly Rain | 2.5 mm | 0.4 mm | 5.1 mm | 13:19 |
| Maximum 10-min Rain | 1.0 mm | 0.2 mm | 3.3 mm | 13:28 |
| Maximum Rain Rate | 12 mm/h | 0.4 mm/h | 40 mm/h | 13:23 |
| Minimum Dew Point | 1.4 °C | -3.6 °C | 8.3 °C | 12:26 |
| Maximum Dew Point | 6.1 °C | -0.4 °C | 11.4 °C | 13:29 |
| Mean Dew Point | 3.8 °C | -1.6 °C | 9.6 °C | |
| Night Minimum (21-09) | 3.7 °C | -2.4 °C | 10.1 °C | 09:57 |
| Day Maximum (09-21) | 7.6 °C | 1.0 °C | 13.7 °C | 15:11 |
| Max 10m Temp Rise | 0.3 °C | 0.2 °C | 0.7 °C | 09:19 |
| Max 1hr Temp Rise | 1.1 °C | 0.4 °C | 2.3 °C | 10:28 |
| Max 1hr Hum Rise | 5% | 1% | 11% | 14:28 |
| Max 10m Temp Fall | 0.4 °C | 0.1 °C | 1.8 °C | 13:09 |
| Max 1hr Temp Fall | 1.2 °C | 0.1 °C | 3.6 °C | 13:56 |
| Max 1hr Hum Fall | 6% | 2% | 12% | 13:03 |
| Max 10m Wind Speed | 10.8 mph | 5.0 mph | 19.3 mph | 11:04 |
| Minimum Feels-like | -1.2 °C | -7.9 °C | 7.3 °C | 11:06 |
| Maximum Feels-like | 7.6 °C | -0.9 °C | 14.7 °C | 13:24 |
| Mean Feels-like | 3.4 °C | -3.5 °C | 11.7 °C | n/a |
| Air-frost Hrs | 30 hrs | 0 hrs | 11 hrs | n/a |
| Measure | Mean / Sum (anomaly) | Min | Max | |
| Temperature Range | 4.7 °C (+0.1) | 1.3 °C | 10.2 °C | |
| Humidity Range | 15% | 4% | 25% | |
| Pressure Range | 11 hPa | 1 hPa | 32 hPa | |
| Measure | Sum (anom.) [% of max] | Min | Max | |
| Sun Hours | 61 (94%) [28%] | 0 | 7.2 | |
| Wet Hours | 82 (132%) [11%] | 0 | 13 | |
NB: Hover over a value to view the date it was recorded.
Sun hrs, Wet hrs, Cloud cover and Events are based on manual equipment/observations (entered with a delay of 1-10 days).
Consequently, their reliablity is questionable and they are provided for interest only.
| Days Of... | |||||||
| Rainfall | Temperature | Sunshine | Other | ||||
| > 0.0 mm | 16 | Min < -5.0 °C | 0 | > 0 hrs | 17 | Falling Snow | 2 |
| > 0.1 mm | 15 | Min < 0.0 °C | 6 | > 1 hrs | 12 | Lying Snow | 2 |
| > 0.3 mm | 15 | Mean < 0.0 °C | 0 | > 3 hrs | 11 | Hail | 0 |
| > 1.0 mm | 14 | Mean > 20.0 °C | 0 | > 5 hrs | 4 | Thunder | 0 |
| > 5.0 mm | 6 | Max > 25.0 °C | 0 | > 10 hrs | 0 | Dense Fog | 0 |
| > 10.0 mm | 4 | Max > 30.0 °C | 0 | > 25% max poss. | 11 | Gusts > 30mph | 5 |
| > 20.0 mm | 1 | Ice Days | 0 | > 95% max poss. | 2 | Total Events | 9 |
Misc.
Mean rainfall for days with >0.3mm: 6.5 mmTotal snowfall: 7 cm - 7% of the total precipitation
Total lying snow: 5 cm