What’s the weather like in september: Chicago September Weather, Average Temperature (Illinois, United States)

September Climate Outlook

Caribou, ME

Weather Forecast Office

…A STATISTICAL PREVIEW OF CARIBOU’S SEPTEMBER WEATHER…

Like most locations across the northern tier of the United States, temperatures begin a more rapid downward slope of daily temperatures during the month of September at Caribou.

The warmest temperature ever observed during the month of September was 92 degrees on September 1, 2010. The coldest temperature ever observed in September was 23 degrees on September 29, 1980.

Frost is possible at any time during the month of September, although it becomes an increasingly likely event during the 2nd half of the month. The earliest occurrence of a temperature of 32 degrees or lower was observed on September 3, 1976. The latest date for the first freezing temperature was September 30, 2001. The average date (1981-2010 averages) of the first freezing temperature at caribou is September 20th.

Although rare, snow has been observed during the month of September. The earliest occurrence of a trace of snow was September 13, 1963. A trace of snow has been observed a number of times during the second half of the month. The earliest measurable snowfall was on September 29, 1991 when 2.1 inches of snow was observed.

Tropical systems or the remains of tropical systems occasionally can affect the area with heavy rainfall and gusty wind. September is the most likely time of the year for the area to be impacted by a tropical or ex-tropical system.

The frequency of thunderstorms drops off fairly rapidly in September, and the threat of severe thunderstorms drops off even more so.

SEPTEMBER: CARIBOU’S TOP 5 WARMEST (AVERAGE TEMPERATURES):

61.7 DEGREES 1999

61.4 2015

59.5 1961

58.6 2011

58.4 1968

SEPTEMBER: CARIBOU’S TOP 5 COLDEST (AVERAGE TEMPERATURES):

50. 2 DEGREES 1950

50.3 1956

50.3 1978

50.5 1986

50.8 1963

SEPTEMBER: CARIBOU’S TOP 5 WETTEST

8.81 INCHES 1999

8.14 1954

7.01 2013

6.80 1969

6.61 1967

SEPTEMBER: CARIBOU’S TOP 5 DRIEST

0.86 INCHES 1968

1.26 1950

1.33 1964

1.51 1992

1.54 1946

…SEPTEMBER STATISTICS…

….TEMPERATURES (1981-2010 NORMALS)

AVERAGE HIGH……………………………………………………….65.4

AVERAGE LOW…………………………………………………………..44.5

MONTHLY AVERAGE…………………………………………..55.0

…PRECIPITATION…

MONTHLY AVERAGE……………………………………………..3.32 INCHES

AVERAGE DAYS WITH MEASURABLE PRECIPITATION…..12 (11.8)

LARGEST CALENDAR DAY RAINFALL……………………….6.21 INCHES, 9/11/54 (2ND LARGEST ON RECORD)

AVERAGE SNOWFALL…………………………………………. 0.1 INCHES

…MISCELLANEOUS SEPTEMBER AVERAGES…

NORMAL HEATING DEGREE DAYS………………………..…313

NORMAL COOLING DEGREE DAYS……………………….…11

MEAN WIND SPEED……………………………………………..7.3 MPH

AVERAGE NUMBER OF DAYS W/THUNDERSTORMS……..1 (1.1)

AVERAGE NUMBER OF DAYS W/DENSE FOG…………..…2 (2.4)

MEAN NUMBER OF CLOUDY DAYS………………………….15

…SUNRISE AND SUNSET…

SEPTEMBER 1^ST…………………………………………………5:52 AM/7:11 PM

SEPTEMBER 30^TH……………………………………………….6:30 AM/6:13 PM

LOSS OF DAYLIGHT……………………………………………1 HOUR AND 36 MINUTES

The outlook from the Climate Prediction Center for the month of September calls for an increased likelihood of above average temperatures across northern and eastern Maine. There are no strong climate signals that would point toward an unusually wet or dry month.

What is the Weather in Chicago in September

This post is an overview of the September weather in Chicago, including snow and precipitation forecasts, as well as tips on how to dress and things to do.

If you’ll be in town either before or after the month, make sure to check our posts on weather in August and October.

Temperatures
How Much Sun, Rain and Snow
What to Wear
Things to Do
Seasonal Outlook
Free Tours by Foot

HOW COLD IS CHICAGO IN SEPTEMBER?

This month turns out to be a very pleasant month as far as temperatures, with less rainy days than in August.

The long summer days are behind us now. Often the thermometer will reach over 60 °F (16 °C) in Chicago, with an average high of 75 °F (24 °C) and low of 54 °F (12 °C).

HOW MUCH SUN AND RAIN?

In September, the city experiences less wind and less rain!

There is a steep decline in stormy weather after the summer thunderstorms of August, and rainfall only adds up to 3. 2 inches (82 mm) of rain over the course of about 8 rainy days.

The sun shines for an average of 12 hours and 27 minutes a day, with about 9 clear days throughout the month.

The average humidity during August is 71%, with the mornings reaching up to 85% humidity, and letting up throughout the day to around 55%

WHAT TO WEAR IN SEPTEMBER?

Chicago in September can be a little unpredictable, and you will want to reflect that in your wardrobe.

Be sure to still pack comfortable, light-weight clothing for the warmer days and hours of this month, especially in the early days of September.

The temperatures begin to cool during the evening hours, as well as later in the month, so you will want to be prepared with layers.

Sunblock and comfortable walking shoes are still essential this month, as there are many great outdoor activities and beautiful parts of the city to explore with our walking tours.

Throw a water bottle in as well, so you can stay hydrated during your Chicago adventure.

WHAT TO DO IN CHICAGO IN SEPTEMBER?

Below are the top things to do in September in Chicago.

But, be sure to read our full post on what to do in Chicago in September which includes free things to do, night and family-friendly activities and attractions, as well as our definitive post on the best things to do in Chicago.

And if you are planning on visiting many of Chicago’s top attractions, then you should consider a tourist discount pass as you could save up to 50% of retail ticket prices to tours, attractions, and restaurants.

Be sure to check out all the top things to do in September in our main post.

Seasonal Outlook

July to September 2022 Chicago

There is a 75% chance for normal to above normal temperatures with near normal rainfall.

Fred Pickhardt
Ocean Weather Services

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Weather in Samara in September 2023

Apr 25 – May 25FebruaryMayJunJulyAugustDec

DayNight

October 2023

25 24 026

90Aug 2012 1 Aug 29	Aug 30	Aug 31	Sep 1
Nighttime temperature, °C	19	18	17	15	16
Daytime temperature, °C	23	21	21
Moisture, %
Pressure, mm	744
Wind, m/s 26	0.3	0.4	0.6	0.6	2

Daytime temperature, °C 2

	Sep 2	Sep 3	90 Sep 4	1 0011 Sep 6
Night temperature, °C	15	15
Humidity, %	61	67	60	68	61
4	744
Wind, m/s	5	3	4	4	4
Precipitation, mm 0021

	Sep 7	8 Sep	9 Sep	10 Sep	11 Sep
Temperature at night, °C	15	3	12	13
Daytime temperature, °C	20	20	18	15	17
025 67	73	68
Pressure, mm	744	744	743	745	746
Wind, m/s	2	3 6	5	4	4
Precipitation, mm	1. 5	2.2	3	0.8	1.1

	Sep 3 01 9 01 12	Sep 14	Sep 15	Sep 16
Night temperature, °C	13	14	14	13	14
Daytime temperature, °C	19	19	18	17
Humidity, %	69	69	72	69	66
Pressure, mm 745	745	744	745
Wind, m/s	3	3	3	4	4
Precipitation, mm 2 6	2.7	2	4.6	1.5

5 Temperature at night, °C

Sep 17

Sep 18

Sep 19

Sep 20

Sep 21

Daytime temperature, °C

16 90 026 021

Humidity, %

Pressure, mm , m/s

Precipitation, mm

	Sep 22	Sep 23	Sep 24	Sep 25	Sep 26
Temperature at night, °C 1
Daytime temperature, °C	17	17	15	15	15
25 69	67
Pressure, mm	747	745	744	744	747
Wind, m/s 21
Precipitation, mm	2. 2	1.1	2.7	2.4	0.8

901 28 28 Sep

	27 sep	Sep 30
Temperature at night, °C	10	9	9	7
Daytime temperature, °C humidity, %	69	69	73	75
Pressure, mm m/s	5	4	4	4
Precipitation , mm	2.2	2.2	2.2	1.2

02 WG-Week

Motherland

Thematic applications

Soyuz

Latest issue

Society

21.08.2022 17:36

. In other words, the heat will go away with the summer, and the first month of autumn will be average, Lyudmila Parshina, head of the laboratory of the Hydrometeorological Center of Russia, told Rossiyskaya Gazeta.

According to the forecaster, the norm for September in the central regions is the night temperature from plus 6 to 12 degrees, daytime – from 16 to 22 degrees. When it gets cold, nighttime temperatures can drop to zero degrees. And during the day the air can warm up to a maximum of 10 degrees.

Temperature below normal in September is expected in Kursk and Belgorod regions. It is colder than usual in the resorts – in the Krasnodar Territory and in the Crimea. If it is usually plus 17 degrees at night, and plus 27 degrees during the day, then this year it can be a couple of degrees colder.

The heat will leave the European part of the country together with the summer, the weather in September will be at the level of the climatic norm

But it can be a couple of degrees warmer in Siberia. It is also warm in Primorye and in the south of the Khabarovsk Territory, as well as in the south of the Urals – in the Sverdlovsk, Chelyabinsk and Kurgan regions. Here, approximately as in the center – during the day 17-23 degrees.

Rainy September can be in the center and northwest. In the north – in the Arkhangelsk region, Komi – it is no less rainy, as in the Urals. In the Volga region and in the resorts, too, it will not do without rain.

September norm for Moscow at night – 7-12, in the afternoon – 16-21 degrees. With cold snaps at night, plus 1-6, during the day – no higher than plus 13 degrees. Precipitation may be more than normal.

Until the end of August, hot weather is likely to continue in the capital. According to the scientific director of the Russian Hydrometeorological Center Roman Vilfand, from Tuesday air masses will move from Turkey, Asia Minor and the Middle East. This will lead to the fact that the air temperature will be 7-8 degrees above the climatic norm. “In the summer, this anomaly is very large,” the forecaster explained.

On Monday the temperature is expected to be around 30 degrees, and on Tuesday and Wednesday the thermometers will rise to plus 31-33 degrees. At the same time, significant precipitation, as well as cloudiness, is not expected.

Already in the second half of the week the temperature in Moscow will begin to decrease, but it will still be above the norm. The thermometers will be in the range of 25-29 degrees.

In the meantime

After a short pause yesterday the smog hovered over Moscow with renewed vigor. A new portion of burning was brought by the wind from the expanding forest fires of the Ryazan, Vladimir, Nizhny Novgorod regions and the Republic of Mari El. As experts told RG, a change in the wind will be able to clear the capital’s air of combustion products. According to their forecast, this will not happen until Thursday, August 25th.

On Sunday residents of the north-west and south-west, the east of the capital, Lytkarino, Lobnya and Dolgoprudny near Moscow began to complain about the smell of burning. Rescuers, meteorologists and doctors vying with each other urge residents not to go outside, close windows to minimize the intake of air with combustion products.