September weather forecastMorley, IA
September
Weather in September
September, the first month of the autumn in Morley, is also a moderately hot month, with an average temperature fluctuating between 54.7°F (12.6°C) and 73.4°F (23°C).Temperature
Start of September brings a slight shift in the average high-temperature, dipping a bit from August's 79.3°F (26.3°C) to a still moderately hot 73.4°F (23°C). In September, the average low-temperature records at a fresh 54.7°F (12.6°C) during the nights.Humidity
In September, the average relative humidity in Morley is 78%.Rainfall
In Morley, Iowa, in September, it is raining for 11.4 days, with typically 2.52" (64mm) of accumulated precipitation. In Morley, during the entire year, the rain falls for 137.5 days and collects up to 27.68" (703mm) of precipitation.Snowfall
In Morley, snow does not fall in May through September.Daylight
The average length of the day in September in Morley is 12h and 28min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:38 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:47 pm CDT.
Sunshine
The average sunshine in September is 9.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In September, a regular UV index of 4 translates into these guidelines:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Morley, IA
- Average high temperature in September: 73.4°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in September: 54.7°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in September
Morley, IA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Morley, IA
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in September
Morley, IA
- Average humidity in September: 78%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Morley, IA
- Average rainfall in September: 2.52"
The wettest month (with the highest rainfall) is May (4.45").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days in September
Morley, IA
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (4.1 days).
Average snowfall in September
Morley, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.16").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Morley, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Morley, IA
- Average daylight in September: 12h and 30min
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 12min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Morley, IA
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is December (18.2 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in September
Morley, IA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Morley, IA
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Morley, IA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
