| December | 2007 | ||||||||
| Times indicate the end of a measurement period (BST) | |||||||||
| Maximum Temperature | 16.5 | ēC | 06-Dec-07 | 12:45 PM | |||||
| Minimum Temperature | -2.8 | ēC | 11-Dec-07 | 8:15 AM | |||||
| Mean (15 min) | 7.1 | ēC | 1.3 | from average | |||||
| Mean (Max Min) | 7.0 | ēC | 1.2 | from average (calculated from 0901 to 0900 GMT data) | |||||
| Mean Max | 10.4 | ēC | 1.9 | from average (calculated from 0901 to 0900 GMT data) | |||||
| Mean Min | 3.6 | ēC | 0.5 | from average (calculated from 0901 to 0900 GMT data) | |||||
| Lowest Max | 2.8 | ēC | 18-Dec-07 | ||||||
| Highest Min | 11.1 | ēC | 28-Dec-07 | ||||||
| Air Frosts | 7 | 37.5 | hours of Frost duration | ||||||
| Maximum Station Pressure | 1039 | hPa | 13-Dec-07 | 9:00 AM | |||||
| Minimum Station Pressure | 980 | hPa | 09-Dec-07 | 8:15 AM | |||||
| Mean | 1020.0 | hPa | |||||||
| Mean of 09Z values | 1020.4 | hPa | |||||||
| Rainfall | 120 | mm | 75.0% | of average | |||||
| Wettest 24hr | 18.3 | mm | 09-Dec-07 | 7:15 AM | |||||
| Wettest Calendar Day | 14.7 | mm | 24-Dec-07 | (calculated from 0901 to 0900 following day) | |||||
| Rain Days ( > 0.3mm) | 18 | days | (calculated from 0901 to 0900 GMT data) | ||||||
| Wet Days (>1.0mm) | 11 | days | (calculated from 0901 to 0900 GMT data) | ||||||
| Wet Days (>5.0mm) | 8 | days | (calculated from 0901 to 0900 GMT data) | ||||||
| Max 15min accum | 2.1 | mm | 25-Dec-07 | 1:15 AM | |||||
| Rain Duration | 65.5 | hours | |||||||
| Longest Dry period | 10.47 | days | 22-Dec-07 | 11:00 PM | 251.25 | (hours) | |||
| Longest Wet period (>0.3mm / 15 mins) | 4.75 | hours | 05-Dec-07 | 6:45 AM | |||||
| Sunshine Hours (>30klux) | 15.25 | hours | 30.5% | of average | |||||
| Max Sunshine | 2.00 | hours | 10-Dec-07 | (calculated from 0901 to 0900 following day) | |||||
| Sunshine Hours (>50%) | 36.25 | hours | 72.5% | of average | |||||
| Max Sunshine | 3.25 | hours | 03-Dec-07 | (calculated from 0901 to 0900 following day) | |||||
| Brightest Calendar Day | 5.1 | klux | 09-Dec-07 | (calculated from 0901 to 0900 following day) | |||||
| Sunless Days | 16 | days | (calculated from 0901 to 0900 GMT data) | ||||||
| Maximum Brightness (klux) | 47.7 | klux | 09-Dec-07 | 12:30 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) | 81.9 | ||||||||