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
As Harlingen enters September, the average high-temperature subtly lowers from the 82.9°F (28.3°C) of August to a still warm 75.7°F (24.3°C). During the month of September, Harlingen anticipates a mean low-temperature of 59°F (15°C).Humidity
In Harlingen, the average relative humidity in September is 77%.Rainfall
The month with the least rainfall is September, when the rain falls for 10 days and typically collects 0.67" (17mm) of precipitation.Snowfall
In Harlingen, snow does not fall in June through October.Daylight
In Harlingen, the average length of the day in September is 12h and 27min.On the first day of September in Harlingen, sunrise is at 6:26 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:42 pm EDT.
Sunshine
In Harlingen, the average sunshine in September is 8.8h.UV index
In Harlingen, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 4 in September translates into these instructions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Harlingen in September?
What is the average humidity in September in Harlingen?
What is the driest month in Harlingen?
How much does it rain in Harlingen in September?
When it does not snow in Harlingen?
What is the average length of the day in September in Harlingen?
When is the sunrise / sunset in September in Harlingen?
How long on average sun shines in September in Harlingen?
How high is the UV index in September in Harlingen?
Average temperature in September
Harlingen, NJ
- Average high temperature in September: 75.7°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in September: 59°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in September
Harlingen, NJ
- Average pressure in September: 30.05"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
Harlingen, NJ
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in September
Harlingen, NJ
- Average humidity in September: 77%
The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Harlingen, NJ
- Average rainfall in September: 0.67"
The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days in September
Harlingen, NJ
- Average rainfall days in September: 10 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in September
Harlingen, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.42").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Harlingen, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Harlingen, NJ
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Harlingen, NJ
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in September
Harlingen, NJ
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Harlingen, NJ
- Average cloud cover in September: 38
The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in September
Harlingen, NJ
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Harlingen, New Jersey, USA
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