Stoneleigh weather - last 24 hours

Recent amateur weather station readings at Stoneleigh, near Epsom, UK (N51.36 W0.25). No accuracy is claimed for this data. The dew point calculation is not valid for temperatures below freezing and the wind measurements are almost useless. Use at your own risk.

Data is logged and graphs are drawn by pywws software on a WL-500gP router running OpenWRT 8.09 embedded Linux.

Experimental RSS feed of hourly data and Twitter account broadcasting same data.

Readings from the last six hours

Date & time		Temp	Humidity	Wind			Rain	Pressure
Date & time		Temp	Humidity	dir	ave	gust	Rain	Pressure
2010/07/30	1455 BST	24.3 °C	42%	N	1 mph	6 mph	0.0 mm	1016.0 hPa, falling slowly
	1555 BST	24.0 °C	44%	SW	1 mph	7 mph	0.0 mm	1015.6 hPa, falling slowly
	1655 BST	25.3 °C	42%	W	2 mph	9 mph	0.0 mm	1015.0 hPa, falling slowly
	1755 BST	24.0 °C	50%	S	3 mph	11 mph	0.0 mm	1014.9 hPa, falling slowly
	1855 BST	22.2 °C	55%	S	3 mph	10 mph	0.0 mm	1014.9 hPa, falling slowly
	1955 BST	21.0 °C	56%	S	2 mph	7 mph	0.0 mm	1014.7 hPa, falling slowly
	2055 BST	20.1 °C	58%	SW	2 mph	7 mph	0.0 mm	1014.7 hPa, falling slowly

Graphs of the last 24 hours

Graphs of last 24 hours weather Wind rose of last 12 hours

Summary

24 hours ending 2200 BST on 29 Jul 2010		Date & time
Average temperature	20.4 °C
Daytime max temp	26.7 °C	2010/07/29	1125 BST
Night min temp	14.3 °C	2010/07/29	0525 BST
Total rainfall	0.0 mm
Average wind speed	1 mph
Highest gust speed	9 mph	2010/07/29	0200 BST

From 2200 BST on 29 Jul to 2055 BST on 30 Jul 2010		Date & time
Average temperature	19.6 °C
Daytime max temp	27.5 °C	2010/07/30	1240 BST
Night min temp	12.1 °C	2010/07/30	0510 BST
Total rainfall	0.0 mm
Average wind speed	1 mph
Highest gust speed	11 mph	2010/07/30	1735 BST