September weather forecastMelba, ID
September
Weather in September
The first month of the autumn, September, is still a warm month in Melba, Idaho, with an average temperature ranging between max 78.3°F (25.7°C) and min 55.9°F (13.3°C).Temperature
September brings a decrease in the average high-temperature, falling from August's tropical 89.4°F (31.9°C) to a moderately hot 78.3°F (25.7°C). A sharp reduction from the daytime highs is witnessed during September, with nighttime temperatures averaging a low of 55.9°F (13.3°C).Humidity
In September, the average relative humidity is 35%.Rainfall
In Melba, in September, it is raining for 5.3 days, with typically 0.28" (7mm) of accumulated precipitation. Throughout the year, there are 97.2 rainfall days, and 9.96" (253mm) of precipitation is accumulated.Snowfall
In Melba, snow does not fall in May through October.Daylight
In Melba, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 7:11 am and sunset at 8:20 pm. On the last day of September, sunrise is at 7:43 am and sunset at 7:28 pm MDT.
Sunshine
In September, the average sunshine is 9.4h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: An average UV index of 5 in September transforms into this advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Melba, ID
- Average high temperature in September: 78.3°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is December (36.1°F).
- Average low temperature in September: 55.9°F
The month with the highest average low temperature is August (63.7°F).
The coldest month (with the lowest average low temperature) is December (25.5°F).
Average pressure in September
Melba, ID
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.25"Hg).
The months with the lowest atmospheric pressure are June and August (29.9"Hg).
Average wind speed in September
Melba, ID
- Average wind speed in September: 6.1mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest months (with the lowest average wind speed) are January and August (6mph).
Average humidity in September
Melba, ID
- Average humidity in September: 35%
The month with the highest relative humidity is January (78%).
The months with the lowest relative humidity are July and August (29%).
Average rainfall in September
Melba, ID
- Average rainfall in September: 0.28"
The wettest month (with the highest rainfall) is December (1.46").
The driest months (with the least rainfall) are July and August (0.16").
Average rainfall days in September
Melba, ID
- Average rainfall days in September: 5.3 days
The month with the highest number of rainy days is March (14.8 days).
The months with the least rainy days are July and August (3.5 days).
Average snowfall in September
Melba, ID
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.86").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Melba, ID
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (7.2 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
Melba, ID
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in September
Melba, ID
- Average sunshine days in September: 23.3 days
The month with the most sunshine days is July (24.5 days).
The month with the least sunshine days is March (14.2 days).
Average UV index in September
Melba, ID
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Melba, ID
- Average cloud cover in September: 14
The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in September
Melba, ID
- 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).
