Monthly Humidity Averages for Arkansas

The humidity averages for each month are listed below for places in Arkansas. The tables give the daily averages along with highest and lowest relative humidity levels.

Relative humidity measures the actual amount of moisture in the air as a percentage of the maximum amount of moisture the air can hold.

All the numbers here are averages for the years 1961 to 1990.

Average Humidity

In this table, the Daily number is the average of humidity readings taken every three hours throughout the day. Morning percentages are for 6 am and Afternoon measures are for 3 pm local standard time.

Average relative humidity (%) for Fort Smith, Arkansas

Daily		Morning	Afternoon
70	January	80	52
68	February	81	50
64	March	79	46
64	April	82	45
71	May	88	52
71	June	89	52
69	July	89	48
69	August	89	47
72	September	89	50
69	October	87	45
70	November	84	49
71	December	82	53
69	Annual	85	49

Average relative humidity (%) for Little Rock, Arkansas

Daily		Morning	Afternoon
70	January	80	55
68	February	80	53
65	March	79	51
67	April	82	51
71	May	87	54
70	June	86	52
72	July	88	54
72	August	88	53
74	September	89	54
70	October	86	48
71	November	83	53
71	December	80	57
70	Annual	84	53

Highest and Lowest Humidity

Below are the monthly and yearly averages for maximum and minimum humidity levels in Arkansas. The hours when a month's highest and lowest humidity readings usually occur are given in local standard time.

Daily high and low relative humidity (%) averages in Fort Smith, Arkansas

High	Time		Low	Time
80.3	6 am	January	52.0	3 pm
80.5	6 am	February	50.3	3 pm
79.3	6 am	March	46.4	3 pm
82.3	6 am	April	45.2	3 pm
88.0	6 am	May	51.8	3 pm
88.6	6 am	June	51.8	3 pm
89.2	6 am	July	48.4	3 pm
89.2	6 am	August	46.9	3 pm
89.4	6 am	September	49.8	3 pm
87.2	6 am	October	45.0	3 pm
83.6	6 am	November	49.4	3 pm
81.8	6 am	December	53.0	3 pm
84.9	6 am	Annual	49.2	3 pm

Daily high and low relative humidity (%) averages in Little Rock, Arkansas

High	Time		Low	Time
80.1	6 am	January	55.4	3 pm
79.8	6 am	February	53.3	3 pm
78.9	6 am	March	50.7	3 pm
82.2	6 am	April	51.1	3 pm
86.6	6 am	May	53.7	3 pm
86.4	6 am	June	51.9	3 pm
87.6	6 am	July	54.1	3 pm
88.3	6 am	August	52.5	3 pm
88.6	6 am	September	53.8	3 pm
86.1	6 am	October	48.3	3 pm
83.3	6 am	November	53.4	3 pm
80.2	6 am	December	56.6	3 pm
84.0	6 am	Annual	52.9	3 pm