| December | 2006 | ||||||||
| Times indicate the end of a measurement period (BST) | |||||||||
| Maximum Temperature | 16 | ēC | 28-Dec-06 | 11:45 AM | |||||
| Minimum Temperature | -4.1 | ēC | 21-Dec-06 | 8:00 AM | |||||
| Mean (15 min) | 7.8 | ēC | 2.0 | from average | |||||
| Mean (Max Min) | 8.4 | ēC | 2.6 | from average (calculated from 0901 to 0900 GMT data) | |||||
| Mean Max | 12.3 | ēC | 3.8 | from average (calculated from 0901 to 0900 GMT data) | |||||
| Mean Min | 4.3 | ēC | 1.3 | from average (calculated from 0901 to 0900 GMT data) | |||||
| Lowest Max | 5.6 | ēC | 23-Dec-06 | ||||||
| Highest Min | 11.1 | ēC | 14-Dec-06 | ||||||
| Air Frosts | 5 | 50.75 | hours of Frost duration | ||||||
| Maximum Station Pressure | 1045 | hPa | 21-Dec-06 | 11:30 PM | |||||
| Minimum Station Pressure | 984 | hPa | 08-Dec-06 | 3:45 AM | |||||
| Mean | 1019.0 | hPa | |||||||
| Mean of 09Z values | 1019.5 | hPa | |||||||
| Rainfall | 151.2 | mm | 94.5% | of average | |||||
| Wettest 24hr | 47.1 | mm | 30-Dec-06 | 4:15 AM | |||||
| Wettest Calendar Day | 42 | mm | 29-Dec-06 | (calculated from 0901 to 0900 following day) | |||||
| Rain Days ( > 0.3mm) | 22 | days | (calculated from 0901 to 0900 GMT data) | ||||||
| Wet Days (>1.0mm) | 12 | days | (calculated from 0901 to 0900 GMT data) | ||||||
| Wet Days (>5.0mm) | 7 | days | (calculated from 0901 to 0900 GMT data) | ||||||
| Max 15min accum | 4.5 | mm | 03-Dec-06 | 4:15 AM | |||||
| Rain Duration | 69.25 | hours | |||||||
| Longest Dry period | 4.32 | days | 25-Dec-06 | 8:15 PM | 103.75 | (hours) | |||
| Longest Wet period (>0.3mm / 15 mins) | 7.25 | hours | 29-Dec-06 | 2:15 PM | |||||
| Sunshine Hours (>30klux) | 21.25 | hours | 42.5% | of average | |||||
| Max Sunshine | 2.50 | hours | 03-Dec-06 | (calculated from 0901 to 0900 following day) | |||||
| Sunshine Hours (>50%) | 32.5 | hours | 65.0% | of average | |||||
| Max Sunshine | 3.00 | hours | 03-Dec-06 | (calculated from 0901 to 0900 following day) | |||||
| Brightest Calendar Day | 5.8 | klux | 08-Dec-06 | (calculated from 0901 to 0900 following day) | |||||
| Sunless Days | 18 | days | (calculated from 0901 to 0900 GMT data) | ||||||
| Maximum Brightness (klux) | 50.7 | klux | 17-Dec-06 | 12:00 PM | |||||
| Average Wind Speed | #DIV/0! | knots | #DIV/0! | mph | |||||
| Maximum Wind Speed | 0 | knots | #N/A | #N/A | 0.0 | mph | |||
| Days with wind from: | (calculated from 0901 to 0900 GMT data) | ||||||||
| Calm | 31 | ||||||||
| N | 0 | ||||||||
| NE | 0 | ||||||||
| E | 0 | ||||||||
| SE | 0 | ||||||||
| S | 0 | ||||||||
| SW | 0 | ||||||||
| W | 0 | ||||||||
| NW | 0 | ||||||||
| Average RH (at 09Z) | 82.3 | ||||||||