| December | 2005 | ||||||||
| Times indicate the end of a measurement period (BST) | |||||||||
| Maximum Temperature | 14.1 | ēC | 19-Dec-05 | 1:00 PM | |||||
| Minimum Temperature | -6.2 | ēC | 29-Dec-05 | 6:00 AM | |||||
| Mean (15 min) | 5.9 | ēC | 0.1 | from average | |||||
| Mean (Max Min) | 6.4 | ēC | 0.6 | from average (calculated from 0901 to 0900 GMT data) | |||||
| Mean Max | 10.5 | ēC | 2.0 | from average (calculated from 0901 to 0900 GMT data) | |||||
| Mean Min | 2.2 | ēC | -0.8 | from average (calculated from 0901 to 0900 GMT data) | |||||
| Lowest Max | 4.7 | ēC | 28-Dec-05 | ||||||
| Highest Min | 8.7 | ēC | 16-Dec-05 | ||||||
| Air Frosts | 9 | 61 | hours of Frost duration | ||||||
| Maximum Station Pressure | 1041 | hPa | 13-Dec-05 | 10:15 AM | |||||
| Minimum Station Pressure | 963 | hPa | 02-Dec-05 | 2:15 PM | |||||
| Mean | 1016.7 | hPa | |||||||
| Mean of 09Z values | 1016.4 | hPa | |||||||
| Rainfall | 80.1 | mm | 50.1% | of average | |||||
| Wettest 24hr | 19.5 | mm | 01-Dec-05 | 11:30 PM | |||||
| Wettest Calendar Day | 15 | mm | 01-Dec-05 | (calculated from 0901 to 0900 following day) | |||||
| Rain Days ( > 0.3mm) | 15 | days | (calculated from 0901 to 0900 GMT data) | ||||||
| Wet Days (>1.0mm) | 9 | days | (calculated from 0901 to 0900 GMT data) | ||||||
| Wet Days (>5.0mm) | 6 | days | (calculated from 0901 to 0900 GMT data) | ||||||
| Max 15min accum | 2.4 | mm | 01-Dec-05 | 11:15 AM | |||||
| Rain Duration | 42 | hours | |||||||
| Longest Dry period | 6.14 | days | 26-Dec-05 | 6:15 PM | 147.25 | (hours) | |||
| Longest Wet period (>0.3mm / 15 mins) | 2.75 | hours | 07-Dec-05 | 5:30 PM | |||||
| Sunshine Hours (>30klux) | 44.75 | hours | 89.5% | of average | |||||
| Max Sunshine | 4.25 | hours | 04-Dec-05 | (calculated from 0901 to 0900 following day) | |||||
| Sunshine Hours (>50%) | 70.25 | hours | 140.5% | of average | |||||
| Max Sunshine | 6.00 | hours | 19-Dec-05 | (calculated from 0901 to 0900 following day) | |||||
| Brightest Calendar Day | 9.0 | klux | 18-Dec-05 | (calculated from 0901 to 0900 following day) | |||||
| Sunless Days | 11 | days | (calculated from 0901 to 0900 GMT data) | ||||||
| Maximum Brightness (klux) | 58.2 | klux | 03-Dec-05 | 11:00 AM | |||||
| Average Wind Speed | 2.8 | knots | 3.2 | mph | |||||
| Maximum Wind Speed | 26.23 | knots | 01-Dec-05 | 11:30 PM | 30.2 | mph | |||
| Days with wind from: | (calculated from 0901 to 0900 GMT data) | ||||||||
| Calm | 18 | ||||||||
| N | 1 | ||||||||
| NE | 0 | ||||||||
| E | 4 | ||||||||
| SE | 1 | ||||||||
| S | 0 | ||||||||
| SW | 0 | ||||||||
| W | 5 | ||||||||
| NW | 2 | ||||||||
| Average RH (at 09Z) | 81.0 | ||||||||