Weather data 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 19, 2017 12:29:06 PM
Current Values Past 24 hours
 Temperature   30.6o   rising 1.08oC/hour  Maximum:   34.7o  at 16:43:30, 8/18/2017 
 Minimum:   13.8o  at 07:28:30, 8/19/2017 
 Mean1  24.3o
 Average2  24.5o
 Relative Humidity   21%    rising 0.0%/hour  Maximum:   53.0%   at 07:14:30, 8/19/2017 
 Minimum:   19.7%   at 16:29:30, 8/18/2017 
 Mean1  36.4% 
 Average2  28.9% 
 Dewpoint   5.5o   rising 0.91oC/hour  Maximum:   8.4o  at 16:43:30, 8/18/2017 
 Minimum:   -0.9o  at 03:14:30, 8/19/2017 
 Mean1  3.7o
 Average2  4.4o
 Sea Level Pressure   101.4 kPa    rising 0.39 kPa/hour  Maximum:   101.6 kPa   at 19:56:30, 8/18/2017 
 Minimum:   100.2 kPa   at 06:37:30, 8/19/2017 
 Mean1  100.9 kPa 
 Average2  101.0 kPa 
 Station Pressure   86.0 kPa   Maximum:   86.1 kPa   at 12:37:30, 8/18/2017 
 Minimum:   84.9 kPa   at 06:37:30, 8/19/2017 
 Mean1  85.5 kPa 
 Average2  85.6 kPa 
 Wind Speed   0.3 m/s from W (260o Maximum:   3.9 m/s from NW (310o  at 17:45:30, 8/18/2017 
 Average2  1.2 m/s 
 Wind Direction   Average3  from NNW (331o
 Solar Irradiance   910 W/m2    falling 652.9 (W/m2)/hour  Maximum:   1352.9 W/m2   at 12:03:30, 8/19/2017 
 Average2  379.2 W/m2 
 Rainfall this month   3.56 mm 
 Rainfall since midnight   0.00 mm   Past 24 hours   0.00 mm 
 Maximum rate   0.000 mm/hour   at 12:30:00, 8/18/2017 
 Wind-Chill Temperature   30.6o  Maximum:   36.5 o  at 16:14:30, 8/18/2017 
 Minimum:   13.5 o  at 07:30:30, 8/19/2017 
 Mean1  25.0 o
 Average2  24.5 o
 Heat Index   28.8o  Maximum:   33.0 o  at 16:43:30, 8/18/2017 
 Minimum:   13.9 o  at 07:28:30, 8/19/2017 
 Mean1  23.5 o
 Average2  24.1 o

1 The mean (in the weather industry this can be referred to as either the mean daily value or the average daily value) is actually known statistically as the midrange or midextreme value: (max(x)+min(x))/2.
2 The average given here is also known statistically as 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 irradiance, 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 1-minute period.

Click here for british units.

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