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
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a hot 93.2°F (34°C) to a warm 84.6°F (29.2°C). During the month of September, Newcastle's nighttime temperature lowers to an average of 65.7°F (18.7°C).Heat index
September's mean heat index is computed to be a hot 89.6°F (32°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.Understand that the heat index values take into account shaded locations and mild winds. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Humidity
The average relative humidity in September in Newcastle, Oklahoma, is 65%.Rainfall
In Newcastle, in September, during 12.5 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. In Newcastle, Oklahoma, during the entire year, the rain falls for 119.9 days and collects up to 24.09" (612mm) of precipitation.Snowfall
In Newcastle, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September, sunrise is at 7:03 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:15 pm CDT.
Sunshine
In Newcastle, the average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Frequently asked questions
How hot is it in Newcastle in September?
What is the average humidity in September in Newcastle?
How much does it rain in Newcastle in September?
When it does not snow in Newcastle?
What is the average length of the day in September in Newcastle?
What time are sunrise and sunset in September in Newcastle?
How many hours of sunshine does Newcastle have in September?
How high is the UV index in September in Newcastle?
Average temperature in September
Newcastle, OK
- Average high temperature in September: 84.6°F
The warmest month (with the highest average high temperature) is July (93.6°F).
The month with the lowest average high temperature is January (49.1°F).
- Average low temperature in September: 65.7°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (32°F).
Average pressure in September
Newcastle, OK
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Newcastle, OK
- Average wind speed in September: 8.7mph
The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in September
Newcastle, OK
- Average humidity in September: 65%
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (59%).
Average rainfall in September
Newcastle, OK
- Average rainfall in September: 2.6"
The wettest month (with the highest rainfall) is May (3.82").
The driest months (with the least rainfall) are February and December (0.98").
Average rainfall days in September
Newcastle, OK
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (4.6 days).
Average snowfall in September
Newcastle, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.1").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Newcastle, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Newcastle, OK
- Average daylight in September: 12h and 2min
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: 8h and 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in September
Newcastle, OK
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is January (24.5 days).
The month with the least sunshine days is May (13.7 days).
Average UV index in September
Newcastle, OK
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Newcastle, OK
- Average cloud cover in September: 27
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in September
Newcastle, OK
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Newcastle, Oklahoma, USA
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