Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The transition into September involves a small decrease in the average high-temperature, dipping slightly from a moderately hot 76.8°F (24.9°C) in August to a pleasant 69.8°F (21°C). September generally records an average low-temperature of 50.5°F (10.3°C).Humidity
In September, the average relative humidity in Harrisville is 79%.Rainfall
In Harrisville, in September, it is raining for 12.3 days, with typically 2.36" (60mm) of accumulated precipitation. Throughout the year, in Harrisville, there are 141.7 rainfall days, and 32.09" (815mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Harrisville, the average length of the day in September is 12h and 29min.On the first day of September in Harrisville, sunrise is at 6:13 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 6:30 pm EDT.
Sunshine
In Harrisville, the average sunshine in September is 7.9h.UV index
The average daily maximum UV index in September in Harrisville is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 3 during September translates into the following directions:
Act with care - The need to guard against sun damage is communicated. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
What is the average September temperature in Harrisville?
What is the average humidity in September in Harrisville?
How many days does it rain in September in Harrisville?
When it does not snow in Harrisville?
Does it snow in Harrisville in September?
What is the average length of the day in September in Harrisville?
When are sunrise and sunset in September in Harrisville?
How many hours of sunshine does Harrisville have in September?
How high is the UV index in September in Harrisville?
Average temperature in September
Harrisville, NH
- Average high temperature in September: 69.8°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in September: 50.5°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in September
Harrisville, NH
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Harrisville, NH
- Average wind speed in September: 5.5mph
The windiest months (with the highest average wind speed) are January and February (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Harrisville, NH
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Harrisville, NH
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is October (3.39").
The driest month (with the least rainfall) is August (2.28").
Average rainfall days in September
Harrisville, NH
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is February (6 days).
Average snowfall in September
Harrisville, NH
- Average snowfall in September: 0"
The month with the highest snowfall is February (11.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Harrisville, NH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Harrisville, NH
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in September
Harrisville, NH
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is March (12 days).
Average UV index in September
Harrisville, NH
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in September
Harrisville, NH
- Average cloud cover in September: 42
The months with the most cloud cover are February and March (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Harrisville, NH
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Harrisville, New Hampshire, USA
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