September weather forecastGrab, KY
September
Weather in September
September, the first month of the autumn in Grab, is still a warm month, with an average temperature varying between 59.9°F (15.5°C) and 79.2°F (26.2°C).Temperature
In Grab, the average high-temperature in September slightly decreases from 85.1°F (29.5°C) in August to a still moderately hot 79.2°F (26.2°C). Throughout the month of September, Grab reports a steady low-temperature average of 59.9°F (15.5°C).Humidity
The average relative humidity in September is 76%.Rainfall
September is the month with the least rainfall. Rain falls for 13.6 days and accumulates 2.32" (59mm) of precipitation.Snowfall
In Grab, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:13 am and sunset at 7:10 pm. On the last day of September, sunrise is at 6:37 am and sunset at 6:26 pm CDT.
Sunshine
In September, the average sunshine is 8.2h.UV index
In Grab, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 5 in September leads to these guidelines:
Make use of precautions - It is urged to ward off sun damage. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grab, KY
- Average high temperature in September: 79.2°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (41°F).
- Average low temperature in September: 59.9°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 (27.5°F).
Average pressure in September
Grab, KY
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Grab, KY
- Average wind speed in September: 5.2mph
The windiest months (with the highest average wind speed) are January and February (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Grab, KY
- Average humidity in September: 76%
The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Grab, KY
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is July (3.82").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in September
Grab, KY
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (10.5 days).
Average snowfall in September
Grab, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Grab, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.4 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
Grab, KY
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in September
Grab, KY
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is October (17 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in September
Grab, KY
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Grab, KY
- Average cloud cover in September: 33
The months with the most cloud cover are January and February (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Grab, KY
- Average visibility in September: 6mi
The months with the highest visibility are March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, May and July (5mi).
