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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 Monday, October 23, 2017.
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 4:00 5:00
North West - all times are in CST
6 99999999999999999898979694959490 NA NA 6 1 IDEM
31 LIM LIM LIM LIM LIM LIM LIM LIM LIM LIM LIM9996908991 NA 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 4:00 5:00
North Central - all times are in EST
5 9694959595969696969696959595959594 NA 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 4:00 5:00
North East - all times are in EST
7 5759606261626779818482818789969797 NA 7 1 IDEM
70 58596063727673901001001009196100100100100 NA 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 4:00 5:00
West Central - refer to the first data column for each site's specific time zone
CST38 10010010010010010010010010099999792969092 NA 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 4:00 5:00
East Central - all times are in EST
39 6464646466778487828288868383879192 NA 39 1 IDEM
42 6668707275909393969993929193979798 NA 42 1 IDEM
78 6768707274909292969792918992959694 NA 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 4:00 5:00
South West - refer to the first data column for each site's specific time zone
CST33 9999991001001001001001001001009999999783 NA NA 33 1 IDEM
CST52 LIM LIM LIM LIM LIM LIM LIM LIM LIM LIM LIM LIM LIM LIM LIM LIM NA NA 52 1 IDEM
EST67 8391929395969795969910010010098918376 NA 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 4:00 5:00
South East - all times are in EST
4 6364717481909294949292908889928783 NA 4 1 IDEM
59 6061616573819192929190929185848592 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.