Stoneleigh weather - last 7 days

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 Raspberry Pi running Raspbian Linux.

RSS Experimental RSS feed of daily weather data.

Summary of the last 7 days

24 hours ending Temperature Wind Rainfall
day max average night min dir average max gust
2017/09/18 09:56 BST 18.9 °C 12.3 °C 9.3 °C N 0.8 mph 6.0 mph 3.7 mm
2017/09/19 09:56 BST 19.3 °C 12.3 °C 7.3 °C N 1.2 mph 9.2 mph 3.9 mm
2017/09/20 09:56 BST 17.7 °C 11.7 °C 7.9 °C W 0.8 mph 6.9 mph 0.0 mm
2017/09/21 09:55 BST 17.8 °C 14.7 °C 12.6 °C SSE 2.9 mph 13.0 mph 0.0 mm
2017/09/22 09:55 BST 19.5 °C 12.0 °C 4.8 °C SSE 2.2 mph 14.5 mph 1.0 mm
2017/09/23 09:55 BST 20.2 °C 14.9 °C 10.6 °C SSE 2.4 mph 10.7 mph 0.0 mm
2017/09/24 09:55 BST 21.0 °C 14.9 °C 10.8 °C SE 2.2 mph 10.7 mph 0.0 mm

Forecasts of the last 7 days

I've recently been experimenting with a simple weather forecaster. It's a computer implementation of the 1915 patent 'pocket forecaster' made by Negretti and Zambra, a firm of instrument makers. To test its accuracy, here are its predictions for the last week.

date & time Forecast for the following 12 hours
Monday 18 September, 09:56 BSTFine weather
Tuesday 19 September, 09:56 BSTFine weather
Wednesday 20 September, 09:56 BSTFairly fine, showers likely
Thursday 21 September, 09:55 BSTShowery, bright intervals
Friday 22 September, 09:55 BSTFine weather
Saturday 23 September, 09:55 BSTBecoming fine

Graphs of the last 7 days

Graphs of last 7 days weather at Stoneleigh, near Epsom