Summary of the past 24 hours from the unofficial station on the roof of the Eyring Science Center on the campus of Brigham Young University in Provo, Utah, USA.

Sat, Aug 17, 2019 9:41:45 AM Sat, Aug 17, 2019 9:41:00 AM¹
Current Values Past 24 hours
 Temperature   21.0 °C   falling 2.14 °C/hour   Maximum:   36.5 °C   at 16:05:00, 8/16/2019 
 Minimum:   16.5 °C   at 06:18:00, 8/17/2019 
 Average²:   24.7 °C 
 Relative Humidity   38 %   rising 1.4 %/hour   Maximum:   48.9%   at 05:39:00, 8/17/2019 
 Minimum:   19.4%   at 19:00:00, 8/16/2019 
 Average²:   30.0% 
 Dewpoint   6.3 °C   falling 1.37 °C/hour   Maximum:   9.7 °C   at 16:05:00, 8/16/2019 
 Minimum:   1.6 °C   at 21:20:00, 8/16/2019 
 Average²:   5.1 °C 
 Mean Sea Level Pressure   100.0 kPa   rising 0.12 kPa/hour   Maximum:   100.4 kPa   at 11:21:00, 8/16/2019 
 Minimum:   98.8 kPa   at 02:45:00, 8/17/2019 
 Average²:   99.6 kPa 
Station Pressure   85.5 kPa   Maximum:   85.9 kPa   at 11:58:00, 8/16/2019 
 Minimum:   84.5 kPa   at 23:58:00, 8/16/2019 
 Average²:   85.3 kPa 
 Wind Speed   1.4 m/s from SW (215)   Maximum:   5.3 m/s from S (174°)   at 09:18:00, 8/17/2019 
 Average²:   1.3 m/s 
 Wind Direction   Average³:   from NNW (328°) 
 Solar Irradiance   235 W/m²   falling 979.1 (W/m²)/hour   Maximum:   1455 W/m²   at 14:55:00, 8/16/2019 
 Average³:   426 W/m² 
 Rainfall this month   0.5 mm 
 Rainfall since midnight   0.0 mm   Past 24 hours   0.0 mm 
 Maximum rate   0.00 mm/hour   at 09:46:00, 8/16/2019 
 Wind-Chill Temperature   21.0 °C   Maximum:   36.3 °C   at 16:05:00, 8/16/2019 
 Minimum:   16.3 °C   at 06:22:00, 8/17/2019 
 Average²:   24.5 °C 
 Heat Index   21.0 °C   Maximum:   35.2 °C   at 16:05:00, 8/16/2019 
 Minimum:   16.6 °C   at 06:18:00, 8/17/2019 
 Average²:   24.1 °C 

Click here for metric units.

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¹ The time for the Past 24-hours values is the time those values were last updated. It is usually before the current time because the history values are only updated every few minutes.
² The average given here is the arithmetic mean: Σxi/N where the sum is performed over the available data for the previous 24-hour period. Normally the available data is the 1-minute average (arithmetic mean of data taken once per second) for temperature, humidity, mean sea-level pressure, station pressure, solar insolation, and dewpoint. For wind chill the 1-minute value is the minimum recorded over that period. For wind speed and heat index it is the maximum during the period.
³ The average wind direction is the vector average which incorporates both the direction and speed. It is the net direction a parcel of air would have moved if you could track it over the 24-hour period.