September weather forecastJerusalem, AR
September
Weather in September
The first month of the autumn, September, is still a warm month in Jerusalem, Arkansas, with an average temperature fluctuating between 83.7°F (28.7°C) and 62.2°F (16.8°C).Temperature
Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a tropical 90.5°F (32.5°C) to a moderately hot 83.7°F (28.7°C). Throughout September, the nighttime temperature in Jerusalem, Arkansas, averages to an enjoyable 62.2°F (16.8°C).Heat index
The heat index in September is estimated at a tropical 91.4°F (33°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.Know that the heat index computations account for shaded terrains and slight winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', reflects the feeling of heat when considering both air temperature and humidity. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Humidity
In September, the average relative humidity is 74%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.2 days and typically collects 1.81" (46mm) of precipitation.Snowfall
In Jerusalem, snow does not fall in April through November.Daylight
In Jerusalem, the average length of the day in September is 12h and 23min.On the first day of September in Jerusalem, Arkansas, sunrise is at 6:44 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:56 pm CDT.
Sunshine
In Jerusalem, Arkansas, the average sunshine in September is 9.6h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Jerusalem, AR
- Average high temperature in September: 83.7°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (47.7°F).
- Average low temperature in September: 62.2°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in September
Jerusalem, AR
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Jerusalem, AR
- Average wind speed in September: 4.5mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Jerusalem, AR
- Average humidity in September: 74%
The months with the highest relative humidity are March and May (79%).
The months with the lowest relative humidity are July, August and October (73%).
Average rainfall in September
Jerusalem, AR
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is May (4.45").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in September
Jerusalem, AR
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is March (15.9 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in September
Jerusalem, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Jerusalem, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Jerusalem, AR
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 9h and 36min
The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 24min).
Average sunshine days in September
Jerusalem, AR
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is December (19.9 days).
The month with the least sunshine days is August (12.5 days).
Average UV index in September
Jerusalem, AR
- Average UV index in September: 6
The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Jerusalem, AR
- Average cloud cover in September: 28
The months with the most cloud cover are February and March (Cloud cover 45).
The months with the least cloud cover are June, July and August (Cloud cover 27).
Average visibility in September
Jerusalem, AR
- Average visibility in September: 6mi
The months with the highest visibility are February, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, March, April and May (5mi).
