Monthly Humidity Averages for New Hampshire

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The humidity averages for each month are listed below for Concord, New Hampshire. 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 for the month or year is the average of humidity readings taken every three hours throughout the day. Morning percentages are for 7 am and Afternoon measures are for 4 pm local standard time.

Average relative humidity (%) for Concord, New Hampshire
Daily   Morning Afternoon
68 January 75 57
66 February 75 53
65 March 76 51
62 April 75 45
65 May 76 46
71 June 82 52
72 July 84 51
75 August 88 53
76 September 90 55
73 October 87 53
73 November 83 60
72 December 79 63
70 Annual 81 53

Highest and Lowest Humidity

Below are the monthly and yearly averages for maximum and minimum humidity levels in New Hampshire. 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 Concord, New Hampshire
High Time   Low Time
74.8 4 am January 56.7 4 pm
75.3 4 am February 53.3 4 pm
76.6 4 am March 50.7 4 pm
79.6 4 am April 45.1 4 pm
86.0 4 am May 46.1 4 pm
90.9 4 am June 51.7 1 pm
92.1 4 am July 50.6 1 pm
92.1 4 am August 53.0 1 pm
92.4 4 am September 54.5 1 pm
87.3 4 am October 52.3 1 pm
82.8 7 am November 59.3 1 pm
79.5 4 am December 61.9 1 pm
84.1 4 am Annual 53.2 4 pm
Reference

World Data Center for Meteorology. Climate of the World.

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