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
2018/04/17 09:57 BST 16.7 °C 11.9 °C 8.7 °C S 5.0 mph 17.4 mph 0.0 mm
2018/04/18 09:55 BST 20.0 °C 15.2 °C 10.3 °C S 5.0 mph 25.9 mph 0.0 mm
2018/04/19 09:55 BST 26.3 °C 18.4 °C 10.1 °C SE 2.3 mph 14.5 mph 0.0 mm
2018/04/20 09:55 BST 30.9 °C 20.4 °C 9.8 °C SE 1.5 mph 10.7 mph 0.0 mm
2018/04/21 09:55 BST 28.6 °C 19.0 °C 10.2 °C NNE 1.6 mph 9.8 mph 0.0 mm
2018/04/22 09:55 BST 27.8 °C 19.0 °C 11.9 °C SE 2.0 mph 13.0 mph 6.5 mm
2018/04/23 09:55 BST 25.1 °C 15.3 °C 6.2 °C SSW 3.5 mph 15.2 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
Tuesday 17 April, 08:58 BSTBecoming fine
Wednesday 18 April, 08:55 BSTFine weather
Thursday 19 April, 08:55 BSTFine weather
Friday 20 April, 08:55 BSTFine weather
Saturday 21 April, 08:55 BSTFine weather
Sunday 22 April, 08:55 BSTOccasional rain, worsening
Monday 23 April, 08:55 BSTFairly fine, improving

Graphs of the last 7 days

Graphs of last 7 days weather at Stoneleigh, near Epsom