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
September is characterized by a mild reduction in the average high-temperature, from a warm 78.4°F (25.8°C) in August to an agreeable 70.7°F (21.5°C). During the month of September, an average temperature of 50.7°F (10.4°C) is noted during the nights.Humidity
The average relative humidity in September is 79%.Rainfall
The month with the least rainfall in Penacook, New Hampshire, is September, when the rain falls for 10.5 days and typically collects 1.57" (40mm) of precipitation.Snowfall
In Penacook, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 29min.On the first day of the month, sunrise is at 6:11 am and sunset at 7:21 pm. On the last day of September, sunrise is at 6:43 am and sunset at 6:28 pm EDT.
Sunshine
In September, the average sunshine in Penacook is 8.4h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Penacook in September?
What is the average humidity in September in Penacook?
What is the driest month in Penacook?
How much does it rain in Penacook in September?
When it does not snow in Penacook?
Does it snow in Penacook in September?
What is the average length of the day in September in Penacook?
What time are sunrise and sunset in September in Penacook?
How long on average sun shines in September in Penacook?
What is the UV index reading in September in Penacook?
Average temperature in September
Penacook, NH
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in September: 50.7°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure in September
Penacook, 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
Penacook, NH
- Average wind speed in September: 4.9mph
The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Penacook, NH
- Average humidity in September: 79%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Penacook, NH
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is October (3.15").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in September
Penacook, NH
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is April (15.2 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in September
Penacook, NH
- Average snowfall in September: 0"
The month with the highest snowfall is February (7.36").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Penacook, NH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Penacook, 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 0min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in September
Penacook, NH
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is April (12.4 days).
Average UV index in September
Penacook, NH
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Penacook, NH
- Average cloud cover in September: 38
The month with the most cloud cover is March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Penacook, NH
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Penacook, New Hampshire, USA
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