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
September's arrival comes with a mild decrease in the average high-temperature, moving subtly from a tropical 91.2°F (32.9°C) in August to a warm 83.7°F (28.7°C). The average nighttime temperature in Shamrock, Oklahoma, lowers to an enjoyable 64.2°F (17.9°C) throughout September.Heat index
September's mean heat index is appraised at a tropical 89.6°F (32°C). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.Heat index values are typically calculated for conditions of shade and a light breeze. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
The average relative humidity in September is 69%.Rainfall
In September, the rain falls for 11.8 days. Throughout September, 3.31" (84mm) of precipitation is accumulated. Throughout the year, in Shamrock, Oklahoma, there are 124 rainfall days, and 26.85" (682mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Shamrock.Daylight
In Shamrock, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:58 am and sunset at 7:53 pm. On the last day of September, in Shamrock, sunrise is at 7:21 am and sunset at 7:10 pm CDT.
Sunshine
The average sunshine in September in Shamrock is 8.5h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Stay sun-safe with clothing that is both closely woven and worn loosely.
Frequently asked questions
How hot is it in Shamrock in September?
What is the average humidity in September in Shamrock?
How many days does it rain in September in Shamrock?
When it does not snow in Shamrock?
What is the average length of the day in September in Shamrock?
What time are sunrise and sunset in September in Shamrock?
How many hours of sunshine does Shamrock have in September?
What is the UV index reading in September in Shamrock?
Average temperature in September
Shamrock, OK
- Average high temperature in September: 83.7°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (47.1°F).
- Average low temperature in September: 64.2°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).
Average pressure in September
Shamrock, OK
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Shamrock, OK
- Average wind speed in September: 8mph
The windiest months (with the highest average wind speed) are March and April (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).
Average humidity in September
Shamrock, OK
- Average humidity in September: 69%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Shamrock, OK
- Average rainfall in September: 3.31"
The wettest month (with the highest rainfall) is May (4.33").
The driest months (with the least rainfall) are January and December (1.06").
Average rainfall days in September
Shamrock, OK
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in September
Shamrock, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.73").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Shamrock, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Shamrock, OK
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in September
Shamrock, OK
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is January (22.8 days).
The month with the least sunshine days is May (14.3 days).
Average UV index in September
Shamrock, OK
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Shamrock, OK
- Average cloud cover in September: 28
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Shamrock, 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).
Shamrock, Oklahoma, USA
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