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, Nov 07, 2009 4:02:19 AM
Current Values Past 24 hours
 Temperature   40oF    falling 1.7oF/hour  Maximum:   70oF   at 15:31:30, 11/6/2009 
 Minimum:   39oF   at 02:16:30, 11/7/2009 
 Mean1:   54oF 
 Average2:   55oF 
 Relative Humidity   54%    rising 5.6%/hour  Maximum:   57.5%   at 02:39:30, 11/7/2009 
 Minimum:   14.2%   at 15:17:30, 11/6/2009 
 Mean1:   35.8% 
 Average2:   30.4% 
 Dewpoint   25oF    rising 0.9oF/hour  Maximum:   28oF   at 09:18:30, 11/6/2009 
 Minimum:   18oF   at 16:11:30, 11/6/2009 
 Mean1:   23oF 
 Average2:   23oF 
 Sea Level Pressure   29.54 in. Hg    rising 0.002 in. Hg/hour  Maximum:   29.80 in. Hg   at 10:27:30, 11/6/2009 
 Minimum:   29.53 in. Hg   at 03:17:30, 11/7/2009 
 Mean1:   29.66 in. Hg 
 Average2:   29.64 in. Hg 
 Station Pressure   24.87 in. Hg   Maximum:   25.12 in. Hg   at 11:16:30, 11/6/2009 
 Minimum:   24.86 in. Hg   at 03:16:30, 11/7/2009 
 Mean1:   24.99 in. Hg 
 Average2:   24.98 in. Hg 
 Wind Speed   0 mph from E (85o)  Maximum:   21 mph from SW (217o)   at 11:41:30, 11/6/2009 
 Average2:   4 mph 
 Wind Direction   Average3:   from S (189o) 
 Solar Irradiance   0.05 cal/cm2/min    rising 0.005 (cal/cm2/min)/hour  Maximum:   0.86 cal/cm2/min   at 12:22:30, 11/6/2009 
 Average2:   0.25 cal/cm2/min 
 Rainfall this month   0.00 in. 
 Rainfall since midnight   0.00 in.   Past 24 hours   0.00 in. 
 Maximum rate   0.000 in./hour   at 04:03:00, 11/6/2009 
 Wind-Chill Temperature   40oF   Maximum:   70 oF   at 15:32:30, 11/6/2009 
 Minimum:   38 oF   at 02:15:30, 11/7/2009 
 Mean1:   54 oF 
 Average2:   55 oF 
 Heat Index   40oF   Maximum:   73 oF   at 14:39:30, 11/6/2009 
 Minimum:   39 oF   at 02:15:30, 11/7/2009 
 Mean1:   56 oF 
 Average2:   56 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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Contact Bryan Peterson with questions or comments about this page. ( 725843)

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