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
The advent of September brings a subtle shift in temperature, with the average high moving from 84.2°F (29°C) in August to a still moderately hot 78.3°F (25.7°C). The nighttime average for Blue Diamond in September plummets considerably from its daytime counterpart, resting at a moderate 56.3°F (13.5°C).Humidity
The average relative humidity in September is 77%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.4 days and typically collects 1.46" (37mm) of precipitation.Snowfall
May through September are months without snowfall in Blue Diamond.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 7:04 am and sunset at 8:01 pm. On the last day of September, sunrise is at 7:28 am and sunset at 7:17 pm EDT.
Sunshine
In September, the average sunshine in Blue Diamond is 8.3h.UV index
In September, the average daily maximum UV index in Blue Diamond, Kentucky, is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In September, a regular UV index of 4 translates into these guidelines:
Take measures. Individuals with light skin might experience burns in under 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Frequently asked questions
What are September temperatures in Blue Diamond?
What is the average humidity in September in Blue Diamond?
What is the driest month in Blue Diamond?
How much does it rain in Blue Diamond in September?
When it does not snow in Blue Diamond?
Does it snow in Blue Diamond in September?
What is the average length of the day in September in Blue Diamond?
When are sunrise and sunset in September in Blue Diamond?
How many hours of sunshine does Blue Diamond have in September?
What is the UV index reading in September in Blue Diamond?
Average temperature in September
Blue Diamond, KY
- Average high temperature in September: 78.3°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in September
Blue Diamond, KY
- Average pressure in September: 30.05"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Blue Diamond, KY
- Average wind speed in September: 4.2mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in September
Blue Diamond, KY
- Average humidity in September: 77%
The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is November (75%).
Average rainfall in September
Blue Diamond, KY
- Average rainfall in September: 1.46"
The wettest month (with the highest rainfall) is February (2.76").
The driest month (with the least rainfall) is September (1.46").
Average rainfall days in September
Blue Diamond, KY
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (10.5 days).
Average snowfall in September
Blue Diamond, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.15").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Blue Diamond, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.3 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
Blue Diamond, KY
- Average daylight in September: 12h and 2min
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 36min).
- Average sunshine in September: 8h and 2min
The months with the most sunshine are June, July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
Blue Diamond, KY
- Average sunshine days in September: 14 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is May (9.7 days).
Average UV index in September
Blue Diamond, KY
- Average UV index in September: 4
The months with the highest UV index are May, June 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
Blue Diamond, KY
- Average cloud cover in September: 35
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Blue Diamond, KY
- Average visibility in September: 5mi
The months with the highest visibility are April, October and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and December (5mi).
Blue Diamond, Kentucky, USA
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