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
Lambs Grove's weather subtly changes with the onset of September, barely falling from a moderately hot 80.6°F (27°C) in August to a still warm 74.7°F (23.7°C). Lambs Grove's temperature drops to an average low of 55.8°F (13.2°C) during the nights of September.Humidity
The average relative humidity in September in Lambs Grove is 77%.Rainfall
In Lambs Grove, Iowa, in September, during 9.6 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. Throughout the year, there are 106.7 rainfall days, and 11.77" (299mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Lambs Grove.Daylight
The average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 6:39 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:55 pm CDT.
Sunshine
In September, the average sunshine in Lambs Grove is 9.4h.UV index
In September, the average daily maximum UV index in Lambs Grove is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum UV index of 4 in September translates into the following recommendations:
Take precautions - Protection against sun damage is advised. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
What is the average September temperature in Lambs Grove?
What is the average humidity in September in Lambs Grove?
How many days does it rain in September in Lambs Grove?
When it does not snow in Lambs Grove?
Does it snow in Lambs Grove in September?
How many hours of daylight does Lambs Grove have in September?
When are sunrise and sunset in September in Lambs Grove?
How many hours of sunshine does Lambs Grove have in September?
What is the UV index intensity in September in Lambs Grove?
Average temperature in September
Lambs Grove, IA
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (27.1°F).
- Average low temperature in September: 55.8°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in September
Lambs Grove, 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
Lambs Grove, IA
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in September
Lambs Grove, IA
- Average humidity in September: 77%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Lambs Grove, IA
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is May (2.13").
The driest months (with the least rainfall) are January, February and December (0.39").
Average rainfall days in September
Lambs Grove, IA
- Average rainfall days in September: 9.6 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in September
Lambs Grove, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.73").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Lambs Grove, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lambs Grove, 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 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Lambs Grove, IA
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is December (22.9 days).
The month with the least sunshine days is June (12.2 days).
Average UV index in September
Lambs Grove, 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 and December (UV index 1).
Average cloud cover in September
Lambs Grove, IA
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and September (Cloud cover 30).
Average visibility in September
Lambs Grove, 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).
Lambs Grove, Iowa, USA
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