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
During the shift to September, a minor reduction in average high-temperature is observed, shifting from a hot 90.1°F (32.3°C) in August to a moderately hot 83.3°F (28.5°C). An average minimum temperature of 62.6°F (17°C) is recorded during the month of September.Heat index
The heat index value during September is appraised at a hot 89.6°F (32°C). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', gives an indication of how one might feel in terms of heat after considering humidity. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Humidity
In Umpire, the average relative humidity in September is 73%.Rainfall
In Umpire, in September, it is raining for 14.2 days, with typically 2.83" (72mm) of accumulated precipitation. Throughout the year, there are 164 rainfall days, and 40.12" (1019mm) of precipitation is accumulated.Snowfall
In Umpire, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:50 am and sunset at 7:41 pm. On the last day of September, sunrise is at 7:10 am and sunset at 7:01 pm CDT.
Sunshine
The average sunshine in September is 9.3h.UV index
In Umpire, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Umpire have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Umpire have in September?
What is the UV index reading in September?
Average temperature in September
Umpire, AR
- Average high temperature in September: 83.3°F
The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (48.2°F).
- Average low temperature in September: 62.6°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (31.8°F).
Average pressure in September
Umpire, AR
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Umpire, AR
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Umpire, AR
- Average humidity in September: 73%
The months with the highest relative humidity are February and March (79%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Umpire, AR
- Average rainfall in September: 2.83"
The wettest month (with the highest rainfall) is May (5.08").
The driest month (with the least rainfall) is January (2.28").
Average rainfall days in September
Umpire, AR
- Average rainfall days in September: 14.2 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is January (9.6 days).
Average snowfall in September
Umpire, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Umpire, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Umpire, AR
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Umpire, AR
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is August (9.7 days).
Average UV index in September
Umpire, AR
- Average UV index in September: 5
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
Umpire, AR
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June, August and September (Cloud cover 29).
Average visibility in September
Umpire, AR
- Average visibility in September: 6mi
The months with the highest visibility are March, April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, May and December (5mi).
Umpire, Arkansas, USA
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