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 19, 2017 12:35:30 PM
 Temperature   Maximum:   94o  at 16:43:30, 8/18/2017 
 Minimum:   57o  at 07:28:30, 8/19/2017 
 Mean1  76o
 Average2  76o
 Relative Humidity   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   Maximum:   47o  at 16:43:30, 8/18/2017 
 Minimum:   30o  at 03:14:30, 8/19/2017 
 Mean1  39o
 Average2  40o
 Sea Level Pressure   Maximum:   29.99 in. Hg   at 19:56:30, 8/18/2017 
 Minimum:   29.59 in. Hg   at 06:37:30, 8/19/2017 
 Mean1  29.79 in. Hg 
 Average2  29.81 in. Hg 
Station Pressure   Maximum:   25.43 in. Hg   at 12:37:30, 8/18/2017 
 Minimum:   25.07 in. Hg   at 06:37:30, 8/19/2017 
 Mean1  25.25 in. Hg 
 Average2  25.27 in. Hg 
 Wind Speed   Maximum:   9 mph from NW (310o )  at 17:45:30, 8/18/2017 
 Average2  3 mph 
 Wind Direction   Average3  from NNW (330o
 Solar Irradiance   Maximum:   1.94 cal/cm2/min   at 12:03:30, 8/19/2017 
 Average2  0.54 cal/cm2/min 
 Rainfall this month   0.14 in. 
 Rainfall since midnight   0.00 in. 
 Past 24 hours   0.00 in. 
 Maximum rate   0.000 in./hour   at 12:37:00, 8/18/2017 
 Wind-Chill Temperature   Maximum:   98 o  at 16:14:30, 8/18/2017 
 Minimum:   56 o  at 07:30:30, 8/19/2017 
 Mean1  77 o
 Average2  76 o
 Heat Index   Maximum:   91 o  at 16:43:30, 8/18/2017 
 Minimum:   57 o  at 07:28:30, 8/19/2017 
 Mean1  74 o
 Average2  75 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 metric units

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Contact Bryan Peterson with questions or comments about this page. ( 1014647)

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