September weather forecast
Ithaca, MI

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Weather in September

September, the first month of the autumn in Ithaca, is still a pleasant month, with an average temperature varying between 52.3°F (11.3°C) and 71.1°F (21.7°C).

Temperature

Ithaca's progression into September involves a gentle drop in the average high-temperature, from a warm 77.5°F (25.3°C) in August to a pleasant 71.1°F (21.7°C). An average low-temperature of 52.3°F (11.3°C) is anticipated throughout the nights during September.

Humidity

The average relative humidity in September is 79%.

Rainfall

In Ithaca, in September, it is raining for 11.6 days, with typically 1.46" (37mm) of accumulated precipitation. In Ithaca, during the entire year, the rain falls for 141.3 days and collects up to 22.48" (571mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in September in Ithaca is 12h and 29min.
On the first day of September, sunrise is at 7:03 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:20 pm EDT.

Sunshine

In Ithaca, the average sunshine in September is 8.1h.

UV index

The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: In September, a daily UV index of 3 turns into the following recommendations:
Be vigilant - Preventing sunburn is recommended. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

The average high-temperature and low-temperature during September are 71.1°F (21.7°C) and 52.3°F (11.3°C) respectively.

What is the average humidity in September?

In September, the average relative humidity is 79%.

How much does it rain in September?

In September, the rain falls for 11.6 days. Throughout September, 1.46" (37mm) of precipitation is accumulated.

When it does not snow in Ithaca?

May through September are months without snowfall.

Does it snow in September?

In Ithaca, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Ithaca have in September?

In September, the average day length is 12h and 29min.

When is the sunrise / sunset in September in Ithaca?

On the first day of September, sunrise is at 7:03 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:20 pm EDT.

How many hours of sunshine does Ithaca have in September?

In Ithaca, the average sunshine duration in September is 8.1h.

What is the UV index reading in September?

In Ithaca, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Ithaca, MI

Average temperature in September - Ithaca, MI
  • Average high temperature in September: 71.1°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (26.8°F).

  • Average low temperature in September: 52.3°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).

Average pressure in September
Ithaca, MI

Average pressure in September - Ithaca, MI
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
Ithaca, MI

Average wind speed in September - Ithaca, MI
  • Average wind speed in September: 7.3mph

The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

Average humidity in September
Ithaca, MI

Average humidity in September - Ithaca, MI
  • Average humidity in September: 79%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (75%).

Average rainfall in September
Ithaca, MI

Average rainfall in September - Ithaca, MI
  • Average rainfall in September: 1.46"

The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is February (1.26").

Average rainfall days in September
Ithaca, MI

Average rainfall days in September - Ithaca, MI
  • Average rainfall days in September: 11.6 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is February (5.3 days).

Average snowfall in September
Ithaca, MI

Average snowfall in September - Ithaca, MI
  • Average snowfall in September: 0"

The month with the highest snowfall is January (5.91").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Ithaca, MI

Average snowfall days in September - Ithaca, MI
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Ithaca, MI

Average daylight in September / Average sunshine in September - Ithaca, MI
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).

Average sunshine days in September
Ithaca, MI

Average sunshine days in September - Ithaca, MI
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is September (15.8 days).
The month with the least sunshine days is January (10.3 days).

Average UV index in September
Ithaca, MI

Average UV index in September - Ithaca, MI
  • Average UV index in September: 3

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in September
Ithaca, MI

Average cloud cover in September - Ithaca, MI
  • Average cloud cover in September: 35

The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in September
Ithaca, MI

Average visibility in September - Ithaca, MI
  • Average visibility in September: 5mi

The months with the highest visibility are March, April, May, June, July, August, October and November (6mi).
The months with the lowest visibility are January, February, September and December (5mi).

Ithaca, Michigan, USA

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