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West Union Data by Site by Date (all parameters)

Use this form to retrieve hourly data collected at West Union. Although this is the most current data, it is not considered official until it has been certified by the technical staff. This information is updated hourly.

This web page provides the most current hourly averaged data available. Our convention for time-tagging data is the beginning of each hour. For example, values shown for the noon hour are based on measurements taken from noon to 1:00 p.m. The noon average will not be calculated until after 1:00 p.m. The noon average will then be available on our external server from 1:15 p.m. to 1:30 p.m. This results in an apparent one-hour time lag in the data. We also present our data in Local Standard Time for each measuring site. For most of Indiana this is Eastern Standard Time. During Daylight Savings, this introduces another apparent one-hour time lag in the data.

Use the controls below to select a different date or time format and to control cell highlighting based on measured ozone levels. Click on the Generate Report button once you have made your selections.

Click on the Plot Data button once the tabular report has been generated to open a separate window containing data plots.

Select a different site
Month:Day:Year:Time Format:
Ozone Highlights:  Moderate   Unhealthy for Sensitives   Unhealthy   Very Unhealthy  
Green underline for validated data

The table below contains hourly averages for all the pollutants and meteorological conditions measured at West Union for Sunday, January 21, 2018. All times shown are in CST.

Parameter MeasuredMorningAfternoon Parameter Measured POC
Mid 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:0010:0011:00Noon 1:00 2:00
Ozone 869815252727262726272727 NA Ozone 1 R
Wind Speed NA Wind Speed 1
Resultant Wind Speed NA Resultant Wind Speed 1
Resultant Wind Direction 46141176177169183185179181182179181181181 NA Resultant Wind Direction 1
Maximum Wind Gust NA Maximum Wind Gust 1
Std. Dev. Wind Direction 414225542211811101112101212 NA Std. Dev. Wind Direction 1
Outdoor Temperature 36.436.737.437.838.942.042.843.444.545.346.147.347.948.0 NA Outdoor Temperature 1
Dew Point Temperature 36.236.436.737.138.340.641.3 LIM LIM LIM LIM LIM0.00.0 NA Dew Point Temperature 1
Relative Humidity 9999979798959410010099100100100100 NA Relative Humidity 1
Barometric Pressure 999.1998.9999.0998.9998.8998.7998.8998.8998.9999.3999.2998.5997.2996.7 NA Barometric Pressure 1
Sea-Level Pressure 1015.71015.41015.61015.51015.41015.31015.41015.41015.51015.91015.81015.11013.81013.3 NA Sea-Level Pressure 1
Parameter MeasuredMid 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:0010:0011:00Noon 1:00 2:00Parameter Measured POC
Maximum values for each parameter are bold within the table. Minimum values are bold italic.
 R - Data from this instrument meets EPA quality assurance criteria for regulatory purposes.

PLEASE NOTE: This data has not been verified by the IDEM and may change. This is the most current data, but it is not official until it has been certified by our technical staff. Data is collected from IDEM ambient monitoring sites and may include data collected by other outside agencies. This data is updated hourly. All times shown are in local standard time unless otherwise indicated.