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 shift from August to September includes a small decrease in the average high-temperature, from a moderately hot 80.2°F (26.8°C) to a still warm 73.9°F (23.3°C). In Blairstown, an average nighttime temperature of 53.8°F (12.1°C) is expected during September.Humidity
In Blairstown, the average relative humidity in September is 79%.Rainfall
The month with the least rainfall in Blairstown is September, when the rain falls for 5.4 days and typically collects 0.24" (6mm) of precipitation.Snowfall
In Blairstown, New Jersey, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:31 pm. On the last day of September, in Blairstown, sunrise is at 6:56 am and sunset at 6:43 pm EDT.
Sunshine
The average sunshine in September in Blairstown, New Jersey, is 8.6h.UV index
In Blairstown, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Adopt protective measures - Suggestions to resist sunburn are offered. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
What is the usual temperature for Blairstown in September?
What is the average humidity in September in Blairstown?
What is the driest month in Blairstown?
How many days does it rain in September in Blairstown?
When it does not snow in Blairstown?
Does it snow in Blairstown in September?
What is the average length of the day in September in Blairstown?
What time are sunrise and sunset in September in Blairstown?
How long on average sun shines in September in Blairstown?
What is the UV index intensity in September in Blairstown?
Average temperature in September
Blairstown, NJ
- Average high temperature in September: 73.9°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in September: 53.8°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in September
Blairstown, NJ
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Blairstown, NJ
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in September
Blairstown, NJ
- Average humidity in September: 79%
The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Blairstown, NJ
- Average rainfall in September: 0.24"
The wettest month (with the highest rainfall) is July (0.98").
The driest month (with the least rainfall) is September (0.24").
Average rainfall days in September
Blairstown, NJ
- Average rainfall days in September: 5.4 days
The months with the highest number of rainy days are April and May (10.5 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in September
Blairstown, NJ
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (0.91").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Blairstown, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Blairstown, NJ
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in September
Blairstown, NJ
- Average sunshine days in September: 23.2 days
The month with the most sunshine days is September (23.2 days).
The month with the least sunshine days is April (18 days).
Average UV index in September
Blairstown, NJ
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Blairstown, NJ
- Average cloud cover in September: 41
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in September
Blairstown, NJ
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Blairstown, New Jersey, USA
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