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
Reference

World Data Center for Meteorology. Climate of the World.

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