Historical Charts

Historical charts show stored station data across the available day, month, and year periods.

Temperature shows outdoor temperature across the selected period as a line chart. In day view it follows the stored observations for that day, while longer periods summarize the same metric into daily or monthly buckets.
Available for: WeatherLink, Netatmo, Ecowitt, WiFiLogger, Weather Underground, and Windy when stored outdoor temperature history exists.
Humidity shows outdoor relative humidity across the selected period as a line chart.
Available for: WeatherLink, Netatmo, Ecowitt, WiFiLogger, Weather Underground, and Windy when stored outdoor-humidity history exists.
Dew Point shows outdoor dew point across the selected period as a line chart. It follows the same bucket rules as the temperature chart, but focuses on atmospheric moisture rather than air temperature.
Available for: WeatherLink, Netatmo, Ecowitt, WiFiLogger, Weather Underground, and Windy when stored dew-point history exists.
Vapor Pressure Deficit shows vapor pressure deficit across the selected period as a line chart. Like dew point and humidity, it focuses on atmospheric moisture balance rather than air temperature alone.
Available for: any provider feed that stores vapor-pressure-deficit history.
Heat Index shows how hot the air felt across the selected period rather than the measured air temperature alone. It is displayed as a line chart.
Available for: WeatherLink, WiFiLogger, and Weather Underground when stored heat-index history exists.
Wet Bulb shows wet-bulb temperature across the selected period as a line chart. This is a WeatherLink-only historical metric in the current app.
Available for: WeatherLink when stored wet-bulb history exists.
Rain Rate shows the peak rain rate for each visible bucket in the selected period. It uses a bar chart because the values are read as discrete bucket peaks rather than a continuous average line.
Available for: WeatherLink, Netatmo, Ecowitt, WiFiLogger, Weather Underground, and Windy when stored rain-rate history exists.
Rain Accumulation shows rain totals for each visible bucket in the selected period. It is also displayed as a bar chart, but here each bar represents the summed accumulation for that bucket rather than the peak rate.
Available for: WeatherLink, Netatmo, Ecowitt, WiFiLogger, Weather Underground, and Windy when stored rain totals exist.
Wind shows sustained wind speed across the selected period as a line chart.
Available for: WeatherLink, Netatmo, Ecowitt, WiFiLogger, Weather Underground, and Windy when stored wind-speed history exists.
Wind Direction shows the distribution of wind directions for the selected period as a wind rose rather than a line chart. This makes it easier to see the dominant directions over the selected day, month, or year.
Available for: WeatherLink, Netatmo, Ecowitt, WiFiLogger, Weather Underground, and Windy when stored wind-speed and direction history exists.
Wind Gust shows peak gust values across the selected period. Unlike the standard line charts that usually show averages per bucket, this chart keeps the highest gust for each bucket because that is the more useful reading historically.
Available for: WeatherLink, Netatmo, Ecowitt, WiFiLogger, Weather Underground, and Windy when stored gust history exists.
Wind Gust Direction shows the distribution of peak-gust directions for the selected period as a wind rose. It is separate from the sustained wind-direction chart because the gust direction series is not always identical to the sustained wind direction series.
Available for: WeatherLink, Netatmo, Ecowitt, and WiFiLogger when stored gust and gust-direction history exists. Weather Underground does not surface this chart.
Pressure shows pressure across the selected period as a line chart. Weather Fusion uses the preferred stored pressure series for the selected station, so the chart follows the best available pressure data rather than forcing one fixed pressure type.
Available for: WeatherLink, Netatmo, Ecowitt, WiFiLogger, Weather Underground, and Windy when stored pressure history exists.
Solar Irradiance shows solar irradiance across the selected period as a line chart.
Available for: WeatherLink, Ecowitt, WiFiLogger, and Weather Underground when the station stores solar history.
UV Index shows peak UV index values across the selected period. It stays on a line chart, but each visible bucket uses its peak UV value rather than an average.
Available for: WeatherLink, Ecowitt, WiFiLogger, Weather Underground, and Windy when stored UV history exists.
Evapotranspiration shows evapotranspiration totals for each visible bucket in the selected period. Like rain accumulation, it uses sums rather than averages.
Available for: WeatherLink and WiFiLogger.
Particulates shows PM1, PM2.5, and PM10 together on one multi-line chart for the selected period so the three particulate series can be compared directly.
Available for: WeatherLink and Ecowitt when stored particulate history exists.
AQI Value shows peak AQI values across the selected period as a line chart. Like UV, the chart uses the peak value for each visible bucket.
Available for: WeatherLink and Ecowitt when stored AQI history exists.
Indoor Temperature shows indoor temperature across the selected period as a line chart.
Available for: Netatmo and any other provider feed that stores indoor temperature history.
Indoor Humidity shows indoor humidity across the selected period as a line chart.
Available for: Netatmo and any other provider feed that stores indoor humidity history.
Indoor CO2 shows indoor carbon-dioxide levels across the selected period as a line chart.
Available for: Netatmo when stored CO2 history exists.
Indoor Noise shows indoor ambient noise across the selected period as a line chart.
Available for: Netatmo when stored noise history exists.