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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 Thursday, April 18, 2019.
measured in percent relative humidity
RegionCAMSMorningAfternoonCAMSPOCEntity
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 3:00
North West - all times are in CST
6 84858590 LIM99989899100999999100 FEW NA 6 1 IDEM
31 78808186 LIM LIM LIM LIM100 LIM LIM LIM LIM LIM LIM NA 31 1 IDEM
RegionCAMSMorningAfternoonCAMSPOCEntity
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 3:00
North Central - all times are in EST
5 596671757983889085859087879596 FEW 5 1 IDEM
RegionCAMSMorningAfternoonCAMSPOCEntity
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 3:00
North East - all times are in EST
7 636469737573829089828985818389 FEW 7 1 IDEM
70 626772767884949695899898888992 FEW 70 1 IDEM
RegionCAMSMorningAfternoonCAMSPOCEntity
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 3:00
West Central - refer to the first data column for each site's specific time zone
EST36 747678808798 LIM LIM LIM LIM LIM LIM8892 LIM LIM 36 1 IDEM
CST38 7273961001001001001001009910010099100 FEW NA 38 1 IDEM
RegionCAMSMorningAfternoonCAMSPOCEntity
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 3:00
East Central - all times are in EST
39 646666666593958275757472686878 FEW 39 1 IDEM
42 616360628299968390928984798888 FEW 42 1 IDEM
78 555755567895937985878580748384 FEW 78 1 IDEM
RegionCAMSMorningAfternoonCAMSPOCEntity
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 3:00
South West - refer to the first data column for each site's specific time zone
CST33 616573767785991001001001001009289 FEW NA 33 1 IDEM
CST52 5159657274737477848384898587 FEW NA 52 1 IDEM
EST67 525360585964708993949386898983 FEW 67 1 IDEM
RegionCAMSMorningAfternoonCAMSPOCEntity
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 3:00
South East - all times are in EST
4 474848525658606161605758595657 FEW 4 1 IDEM
59 554949525461676665666562596475 FEW 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.