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Relative Humidity Hourly Averages

Relative humidity is a measure of the moisture present in the air expressed in percent. Warmer air has the ability to hold more water than colder air. One-hundred percent relative humidity is totally saturated air (the air cannot hold any more moisture).

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Relative Humidity Hourly Averages for Sunday, April 22, 2018.
measured in percent relative humidity
RegionCAMSMorningCAMSPOCEntity
Mid 1:00 2:00 3:00 4:00 5:00 6:00 7:00
North West - all times are in CST
6 4452656765 FEW NA NA 6 1 IDEM
31 7880847245 FEW NA NA 31 1 IDEM
RegionCAMSMorningCAMSPOCEntity
Mid 1:00 2:00 3:00 4:00 5:00 6:00 7:00
North Central - all times are in EST
5 51515452495351 NA 5 1 IDEM
RegionCAMSMorningCAMSPOCEntity
Mid 1:00 2:00 3:00 4:00 5:00 6:00 7:00
North East - all times are in EST
7 424340384240 FEW NA 7 1 IDEM
70 463637403734 FEW NA 70 1 IDEM
RegionCAMSMorningCAMSPOCEntity
Mid 1:00 2:00 3:00 4:00 5:00 6:00 7:00
West Central - refer to the first data column for each site's specific time zone
EST36 605659565954 FEW NA 36 1 IDEM
CST38 4444404145 FEW NA NA 38 1 IDEM
RegionCAMSMorningCAMSPOCEntity
Mid 1:00 2:00 3:00 4:00 5:00 6:00 7:00
East Central - all times are in EST
39 484644434446 FEW NA 39 1 IDEM
42 414245454543 FEW NA 42 1 IDEM
78 394040424441 FEW NA 78 1 IDEM
RegionCAMSMorningCAMSPOCEntity
Mid 1:00 2:00 3:00 4:00 5:00 6:00 7:00
South West - refer to the first data column for each site's specific time zone
CST33 3436384239 FEW NA NA 33 1 IDEM
CST52 4043474960 FEW NA NA 52 1 IDEM
EST67 LIM LIM LIM LIM LIM LIM LIM NA 67 1 IDEM
RegionCAMSMorningCAMSPOCEntity
Mid 1:00 2:00 3:00 4:00 5:00 6:00 7:00
South East - all times are in EST
4 333133343738 FEW NA 4 1 IDEM
59 353737424344 FEW NA 59 1 IDEM
Maximum values for the day are bold within the table. Minimum values are bold italic.

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.