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.

Tue, May 13, 2008 4:18:31 PM
Current Values Past 24 hours
 Temperature   60oF    rising 3.3oF/hour  Maximum:   62oF   at 15:43:30, 5/13/2008 
 Minimum:   34oF   at 06:08:30, 5/13/2008 
 Mean1:   48oF 
 Average2:   46oF 
 Relative Humidity   24%    falling 4.5%/hour  Maximum:   67.5%   at 07:52:30, 5/13/2008 
 Minimum:   19.2%   at 18:01:30, 5/12/2008 
 Mean1:   43.4% 
 Average2:   40.6% 
 Dewpoint   23oF    falling 1.8oF/hour  Maximum:   28oF   at 14:31:30, 5/13/2008 
 Minimum:   10oF   at 18:01:30, 5/12/2008 
 Mean1:   19oF 
 Average2:   22oF 
 Sea Level Pressure   29.91 in. Hg    rising 0.036 in. Hg/hour  Maximum:   29.92 in. Hg   at 12:10:30, 5/13/2008 
 Minimum:   29.66 in. Hg   at 16:18:30, 5/12/2008 
 Mean1:   29.79 in. Hg 
 Average2:   29.78 in. Hg 
 Station Pressure   25.13 in. Hg   Maximum:   25.14 in. Hg   at 12:54:30, 5/13/2008 
 Minimum:   24.87 in. Hg   at 20:56:30, 5/12/2008 
 Mean1:   25.00 in. Hg 
 Average2:   24.99 in. Hg 
 Wind Speed   10 mph from W (274o)  Maximum:   23 mph from N (359o)   at 16:48:30, 5/12/2008 
 Average2:   5 mph 
 Wind Direction   Average3:   from NW (310o) 
 Solar Irradiance   1.26 cal/cm2/min    falling 0.655 (cal/cm2/min)/hour  Maximum:   1.70 cal/cm2/min   at 14:01:30, 5/13/2008 
 Average2:   0.57 cal/cm2/min 
 Rainfall this month   0.75 in. 
 Rainfall since midnight   0.00 in.   Past 24 hours   0.00 in. 
 Maximum rate   0.000 in./hour   at 16:18:00, 5/12/2008 
 Wind-Chill Temperature   60oF   Maximum:   62 oF   at 15:42:30, 5/13/2008 
 Minimum:   31 oF   at 06:17:30, 5/13/2008 
 Mean1:   46 oF 
 Average2:   44 oF 
 Heat Index   60oF   Maximum:   63 oF   at 15:42:30, 5/13/2008 
 Minimum:   34 oF   at 06:08:30, 5/13/2008 
 Mean1:   48 oF 
 Average2:   46 oF 

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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