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 move into September indicates a slight reduction in the average high-temperature, down from August's moderately hot 76.3°F (24.6°C) to an agreeable 68.9°F (20.5°C). Throughout September, an average low-temperature of 48.4°F (9.1°C) is expected.Humidity
The average relative humidity in September in Plainfield is 80%.Rainfall
September is the month with the least rainfall. Rain falls for 11.8 days and accumulates 1.69" (43mm) of precipitation.Snowfall
June through September are months without snowfall in Plainfield.Daylight
In Plainfield, New Hampshire, the average length of the day in September is 12h and 29min.On the first day of September in Plainfield, New Hampshire, sunrise is at 6:13 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:31 pm EDT.
Sunshine
The average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September in Plainfield is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 3 during September leads to these advisories:
Guard yourself - Precautionary measures against sun damage are advocated. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Frequently asked questions
What is the usual temperature for Plainfield in September?
What is the average humidity in September in Plainfield?
What is the driest month in Plainfield?
How much does it rain in Plainfield in September?
When it does not snow in Plainfield?
Does it snow in Plainfield in September?
How many hours of daylight does Plainfield have in September?
When are sunrise and sunset in September in Plainfield?
How long on average sun shines in September in Plainfield?
How high is the UV index in September in Plainfield?
Average temperature in September
Plainfield, NH
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in September: 48.4°F
The month with the highest average low temperature is July (56.1°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in September
Plainfield, 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 (29.91"Hg).
Average wind speed in September
Plainfield, NH
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in September
Plainfield, NH
- Average humidity in September: 80%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is May (75%).
Average rainfall in September
Plainfield, NH
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is October (2.76").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in September
Plainfield, NH
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (8 days).
Average snowfall in September
Plainfield, NH
- Average snowfall in September: 0"
The month with the highest snowfall is February (9.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Plainfield, NH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Plainfield, NH
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in September
Plainfield, NH
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in September
Plainfield, NH
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Plainfield, NH
- Average cloud cover in September: 41
The month with the most cloud cover is February (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in September
Plainfield, NH
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February and March (4mi).
Plainfield, New Hampshire, USA
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