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uk.sci.weather (UK Weather) (uk.sci.weather) For the discussion of daily weather events, chiefly affecting the UK and adjacent parts of Europe, both past and predicted. The discussion is open to all, but contributions on a practical scientific level are encouraged. |
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#1
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PITSFORD HALL WEATHER STATION
NORTHAMPTON, UNITED KINGDOM WEATHER REVIEW - JUNE 2008 Air Temperatures The Highest Maximum: 25.0 C on 9th The Lowest Maximum: 14.3 C on 12th The Highest Minimum: 15.0 C on 28th The Lowest Minimum: 6.5 C on 16th The Mean Maximum: 19.1 C The Mean Minimum: 10.3 C The Overall Mean: 14.7 C Difference from the Monthly Mean: +0.4 C Black Bulb Maximum (at 0900): 35.0 C on 9th Mean (at 0900): 23.4 C Relative Humidity: Highest Relative Humidity (at 0900): 98.9 % on 3rd Lowest Relative Humidity (at 0900): 53.5 % on 9th Mean Relative Humidity (at 0900): 72.3 % Dew Point: The Highest Dew Point (0900): 12.9 C on 3rd & 8th The Lowest Dew Point (at 0900): 6.6 C on 15th The Mean Dew Point (at 0900): 10.1 C Rainfall: Total: 39.9 mm Difference from the Monthly Mean: 69.9 % Duration: 42.9 hrs Highest 24 hour fall (0900 to 0900): 10.9 mm on 2nd Rain Days (/=0.2mm): 8 Wet Days (/=1.0mm): 8 Sunshine: Total Duration of Bright Sunshine: 219.4 hrs Sunniest day: 11.7 hrs on 19th No. of days without sunshine: 3 Difference from the Monthly Mean: 139.2 % Cloud cover (mean at 0900): 5.7 oktas (71.3 %) Pressure (reduced to sea level at 09:00): The Highest Pressu 1025.8 mb on 9th The Lowest Pressu 1006.2 mb on 22nd Mean Pressure (recorded at 0900): 1016.4 mb Winds Run of wind (mean over 24 hrs): 98.3 miles Mean daily wind speed: 5.3 mph Run of wind (cumulative): 2949.5 miles Highest Maximum Gust: 36 mph on 22nd No. of gusts of 50mph or mo 0 Highest wind strength (at 0900): 16.1 mph on 14th Mean wind strength (at 0900): 8.2 mph Winds from the Following Directions: N 6 NE 3 E 1 SE 1 S 3 SW 4 W 4 NW 8 Calm 0 Concrete Lowest Concrete Minimum: 5.2 C on 16th Mean Concrete Minimum: 9.0 C Evaporation Piche 98.7 ml Pan 97.04 mm Days with: Thunder: 0 Hail 5mm: 0 Hail /=5mm: 0 Snow or snow & rain: 0 Snow lying: 0 Fog: 0 Air Frost: 0 Gales: 0 All data © Pitsford Hall weather station. |
#2
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On 1 Jul, 22:03, "Mike Lewis" wrote:
PITSFORD HALL WEATHER STATION NORTHAMPTON, UNITED KINGDOM N 6 NE 3 E 1 SE 1 S 3 SW 4 W 4 NW 8 Calm 0 All data © Pitsford Hall weather station. Hi Mike and COL people on UkSci.weather. When you use just 8 compass points for the wind direction, what happens to SSW, WSW etc? Just wondered! Steve J |
#3
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Hi Steve
In Appendix III of the Observer's Handbook there is a table which demonstrates the method of reduction of wind directions from 16 to 8 compass points. On a routine daily basis, we do record to 16 compass points but as you know the COL summary requires 8. In short, the number of occurrences of wind from NNW, SSE etc. is 'shared' between the two nearest compass points. For example, if NNW were recorded on 4 occasions, 2 would be added to NW and 2 added to N. Where you have an odd number they are shared such the extra observation is thrown clockwise, e.g. 5 observations of SSE would result in 2 being added to SE and 3 to S. I hope this is clear...but as I say the Observer's Handbook does explain it quite well. Regards Mike "Steve J" wrote in message ... On 1 Jul, 22:03, "Mike Lewis" wrote: PITSFORD HALL WEATHER STATION NORTHAMPTON, UNITED KINGDOM N 6 NE 3 E 1 SE 1 S 3 SW 4 W 4 NW 8 Calm 0 All data © Pitsford Hall weather station. Hi Mike and COL people on UkSci.weather. When you use just 8 compass points for the wind direction, what happens to SSW, WSW etc? Just wondered! Steve J |
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