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
2021/01/12 09:00 GMT 8.2 °C 7.9 °C 7.7 °C W 3.9 mph 17.4 mph 6.3 mm
2021/01/13 09:00 GMT 8.8 °C 3.6 °C -0.1 °C NNW 0.6 mph 7.6 mph 0.9 mm
2021/01/14 09:00 GMT 9.5 °C 8.8 °C 6.9 °C W 1.3 mph 9.2 mph 15.3 mm
2021/01/15 08:58 GMT 6.6 °C 2.4 °C -1.0 °C NNE 1.6 mph 10.7 mph 5.3 mm
2021/01/16 08:58 GMT 3.4 °C 1.1 °C -0.7 °C SSE 2.0 mph 17.4 mph 6.3 mm
2021/01/17 08:58 GMT 7.9 °C 5.9 °C 3.1 °C S 1.7 mph 16.8 mph 1.3 mm
2021/01/18 08:58 GMT 7.8 °C 3.9 °C 1.2 °C WNW 0.9 mph 9.2 mph 0.1 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 12 January, 08:59 GMTBecoming fine
Wednesday 13 January, 08:59 GMTFine weather
Thursday 14 January, 08:59 GMTFairly fine, showery later
Friday 15 January, 08:57 GMTSettled fine
Saturday 16 January, 08:57 GMTUnsettled, rain later
Sunday 17 January, 08:57 GMTFine weather
Monday 18 January, 08:57 GMTFine weather

Graphs of the last 7 days

Graphs of last 7 days weather at Stoneleigh, near Epsom