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 onset of September is marked by a minor decrease in temperature, transitioning from a pleasant 72°F (22.2°C) in August to a refreshing 65.1°F (18.4°C). September brings with it a nighttime average temperature of 45.5°F (7.5°C) in Errol.Humidity
In September, the average relative humidity is 81%.Rainfall
In Errol, New Hampshire, in September, during 12.6 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, there are 163.8 rainfall days, and 29.69" (754mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Errol, New Hampshire.Daylight
In Errol, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:07 am and sunset at 7:20 pm. On the last day of September, sunrise is at 6:42 am and sunset at 6:26 pm EDT.
Sunshine
The average sunshine in September in Errol is 7.9h.UV index
The average daily maximum UV index in September in Errol is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 3 during September translates into the following guidance:
Ensure safety - Imperative it is to shield skin and eyes from damage. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Frequently asked questions
What is the average September temperature in Errol?
What is the average humidity in September in Errol?
How many days does it rain in September in Errol?
When it does not snow in Errol?
Does it snow in Errol in September?
What is the average length of the day in September in Errol?
When are sunrise and sunset in September in Errol?
How many hours of sunshine does Errol have in September?
How high is the UV index in September in Errol?
Average temperature in September
Errol, NH
- Average high temperature in September: 65.1°F
The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is January (21.2°F).
- Average low temperature in September: 45.5°F
The month with the highest average low temperature is July (53.4°F).
The coldest month (with the lowest average low temperature) is January (8.1°F).
Average pressure in September
Errol, NH
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Errol, NH
- Average wind speed in September: 5.2mph
The windiest months (with the highest average wind speed) are February, March and April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in September
Errol, NH
- Average humidity in September: 81%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (77%).
Average rainfall in September
Errol, NH
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is October (3.15").
The driest month (with the least rainfall) is February (2.17").
Average rainfall days in September
Errol, NH
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (7 days).
Average snowfall in September
Errol, NH
- Average snowfall in September: 0"
The month with the highest snowfall is February (13.66").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Errol, NH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (22.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Errol, NH
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 7h and 5min
The months with the most sunshine are July and August (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).
Average sunshine days in September
Errol, NH
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (4.9 days).
Average UV index in September
Errol, NH
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in September
Errol, NH
- Average cloud cover in September: 45
The month with the most cloud cover is February (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 44).
Average visibility in September
Errol, NH
- Average visibility in September: 4mi
The months with the highest visibility are May and June (5mi).
The months with the lowest visibility are January, February, March, April, July, August, September, October, November and December (4mi).
Errol, New Hampshire, USA
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