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
With the onset of September, a modest change to a still warm 74.7°F (23.7°C) from August's 79.5°F (26.4°C) is noted in high-temperature. During the month of September, the nighttime temperature in Melbourne falls to an average of 55.4°F (13°C).Humidity
In Melbourne, the average relative humidity in September is 77%.Rainfall
In Melbourne, in September, it is raining for 9.5 days, with typically 1.14" (29mm) of accumulated precipitation. Throughout the year, there are 102 rainfall days, and 10.59" (269mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Melbourne.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 6:38 am and sunset at 7:45 pm. On the last day of September, in Melbourne, sunrise is at 7:09 am and sunset at 6:55 pm CDT.
Sunshine
In Melbourne, the average sunshine in September is 9.3h.UV index
In Melbourne, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: An average maximum UV index of 4 in September leads to these recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Melbourne?
What is the average humidity in September in Melbourne?
How much does it rain in Melbourne in September?
When it does not snow in Melbourne?
Does it snow in Melbourne in September?
What is the average length of the day in September in Melbourne?
When are sunrise and sunset in September in Melbourne?
How long on average sun shines in September in Melbourne?
How high is the UV index in September in Melbourne?
Average temperature in September
Melbourne, IA
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (26.2°F).
- Average low temperature in September: 55.4°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in September
Melbourne, IA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Melbourne, IA
- Average wind speed in September: 8.2mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in September
Melbourne, IA
- Average humidity in September: 77%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Melbourne, IA
- Average rainfall in September: 1.14"
The wettest month (with the highest rainfall) is May (1.69").
The driest months (with the least rainfall) are January and February (0.35").
Average rainfall days in September
Melbourne, IA
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is June (14.6 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in September
Melbourne, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Melbourne, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Melbourne, IA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Melbourne, IA
- Average sunshine days in September: 18.6 days
The month with the most sunshine days is December (22.9 days).
The month with the least sunshine days is June (12.9 days).
Average UV index in September
Melbourne, IA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in September
Melbourne, IA
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in September
Melbourne, IA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Melbourne, Iowa, USA
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