September weather forecastBunker Hill, IN
September
Weather in September
September, the first month of the autumn in Bunker Hill, is still a warm month, with temperature in the range of an average low of 56.5°F (13.6°C) and an average high of 74.7°F (23.7°C).Temperature
With the start of September, Bunker Hill measures an average high-temperature of a still moderately hot 74.7°F (23.7°C), not significantly differing from August's 79.3°F (26.3°C). During the month of September, the temperature falls to an average of 56.5°F (13.6°C).Humidity
In September, the average relative humidity is 79%.Rainfall
September is the month with the least rainfall. Rain falls for 13.2 days and accumulates 1.77" (45mm) of precipitation.Snowfall
May through September are months without snowfall in Bunker Hill.Daylight
The average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 7:12 am and sunset at 8:16 pm. On the last day of September, sunrise is at 7:40 am and sunset at 7:27 pm EDT.
Sunshine
The average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 4 during September translates into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bunker Hill, IN
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.9°F).
- Average low temperature in September: 56.5°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure in September
Bunker Hill, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Bunker Hill, IN
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in September
Bunker Hill, IN
- Average humidity in September: 79%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Bunker Hill, IN
- Average rainfall in September: 1.77"
The wettest months (with the highest rainfall) are April and May (3.58").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in September
Bunker Hill, IN
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in September
Bunker Hill, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.25").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Bunker Hill, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Bunker Hill, IN
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 12min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Bunker Hill, IN
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is May (9.4 days).
Average UV index in September
Bunker Hill, IN
- Average UV index in September: 4
The months with the highest UV index are June and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Bunker Hill, IN
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are June and July (Cloud cover 33).
Average visibility in September
Bunker Hill, IN
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
