September weather forecastPleasant Hill, IA
September
Weather in September
September, the first month of the autumn in Pleasant Hill, is also a moderately hot month, with temperature in the range of an average high of 75.4°F (24.1°C) and an average low of 55.9°F (13.3°C).Temperature
As August makes way for September, Pleasant Hill's average high-temperature eases from a warm 81.1°F (27.3°C) to a still moderately hot 75.4°F (24.1°C). An average minimum temperature of 55.9°F (13.3°C) is recorded during the month of September.Humidity
In Pleasant Hill, the average relative humidity in September is 76%.Rainfall
In Pleasant Hill, in September, during 7.2 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. In Pleasant Hill, during the entire year, the rain falls for 79 days and collects up to 5.94" (151mm) of precipitation.Snowfall
In Pleasant Hill, Iowa, snow does not fall in May through September.Daylight
In September, the average length of the day in Pleasant Hill is 12h and 28min.On the first day of September, sunrise is at 6:40 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:56 pm CDT.
Sunshine
In September, the average sunshine in Pleasant Hill is 9.4h.UV index
In Pleasant Hill, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the UV index of 4 transforms into the following advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Pleasant Hill, IA
- Average high temperature in September: 75.4°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (27.5°F).
- Average low temperature in September: 55.9°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in September
Pleasant Hill, IA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Pleasant Hill, IA
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in September
Pleasant Hill, IA
- Average humidity in September: 76%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Pleasant Hill, IA
- Average rainfall in September: 0.63"
The wettest month (with the highest rainfall) is May (0.98").
The driest months (with the least rainfall) are January, February and December (0.24").
Average rainfall days in September
Pleasant Hill, IA
- Average rainfall days in September: 7.2 days
The month with the highest number of rainy days is May (11.6 days).
The month with the least rainy days is January (1.8 days).
Average snowfall in September
Pleasant Hill, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.91").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Pleasant Hill, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Pleasant Hill, IA
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Pleasant Hill, IA
- Average sunshine days in September: 21 days
The month with the most sunshine days is December (25.5 days).
The month with the least sunshine days is June (15.5 days).
Average UV index in September
Pleasant Hill, IA
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Pleasant Hill, IA
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 29).
Average visibility in September
Pleasant Hill, 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).
