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
The beginning of September reveals an average high-temperature of a still moderately hot 79.5°F (26.4°C), showing minimal deviation from the previous month. In Holland, the nighttime temperature averages to a moderate 60.1°F (15.6°C) during September.Humidity
The average relative humidity in September is 74%.Rainfall
September is the month with the least rainfall. Rain falls for 9.5 days and accumulates 0.79" (20mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 7:18 am and sunset at 8:17 pm. On the last day of September, sunrise is at 7:43 am and sunset at 7:32 pm EDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index in Holland is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September in Holland?
What is the UV index reading in September?
Average temperature in September
Holland, IN
- Average high temperature in September: 79.5°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in September: 60.1°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).
Average pressure in September
Holland, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Holland, IN
- Average wind speed in September: 5.8mph
The windiest months (with the highest average wind speed) are January and February (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in September
Holland, IN
- Average humidity in September: 74%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Holland, IN
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is April (2.32").
The driest month (with the least rainfall) is September (0.79").
Average rainfall days in September
Holland, IN
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in September
Holland, IN
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Holland, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6 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
Holland, IN
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).
Average sunshine days in September
Holland, IN
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is October (20.9 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in September
Holland, IN
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Holland, IN
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Holland, IN
- 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).
Holland, Indiana, USA
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