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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, is another cold winter month in Tamms, Illinois, with an average temperature fluctuating between 41.2°F (5.1°C) and 28.4°F (-2°C). With average high temperatures of 41.2°F (5.1°C) and lows of 28.4°F (-2°C), January is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Tamms, is a chilly month, with an average temperature varying between 31.8°F (-0.1°C) and 45.7°F (7.6°C). The advent of February presents an average high-temperature of a frosty 45.7°F (7.6°C), maintaining a close correlation with the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a moderate month in Tamms, Illinois, with an average temperature fluctuating between 40.6°F (4.8°C) and 56.8°F (13.8°C). In Tamms, the average high-temperature in March rises, from a chilly 45.7°F (7.6°C) in February, to a mild 56.8°F (13.8°C). Weather in March »
Weather in April
April is a comfortable spring month in Tamms, Illinois, with an average temperature ranging between max 67.6°F (19.8°C) and min 50.2°F (10.1°C). April's arrival coincides with a rise in the average high-temperature, moving from March's moderate 56.8°F (13.8°C) to an enjoyable 67.6°F (19.8°C). Weather in April »
Weather in May
May, the last month of the spring in Tamms, is a warm month, with an average temperature ranging between max 76.6°F (24.8°C) and min 59.5°F (15.3°C). Tamms sees a rise in temperature during May, with average high-temperatures transitioning from a refreshing 67.6°F (19.8°C) in April to a warm 76.6°F (24.8°C). Weather in May »
Weather in June
June, the first month of the summer in Tamms, is a hot month, with temperature in the range of an average low of 67.6°F (19.8°C) and an average high of 86°F (30°C). Observing a rise in June, the average high-temperature goes from May's warm 76.6°F (24.8°C) to a hot 86°F (30°C). Weather in June »
Weather in July
July, the same as June, in Tamms, Illinois, is another tropical summer month, with an average temperature fluctuating between 69.8°F (21°C) and 88.2°F (31.2°C). July, with an average high of 88.2°F (31.2°C) and a low of 69.8°F (21°C), signifies the warmest month of the year. The heat index value during July is estimated at a scorching 104°F (40°C). Weather in July »
Weather in August
August, the last month of the summer in Tamms, is another hot month, with an average temperature fluctuating between 67.5°F (19.7°C) and 86.4°F (30.2°C). Stepping into August, Tamms records an average high-temperature of a still tropical 86.4°F (30.2°C), almost consistent with July. Weather in August »
Weather in September
September, the first month of the autumn in Tamms, is still a warm month, with an average temperature varying between 81.5°F (27.5°C) and 61.9°F (16.6°C). The arrival of September coincides with an average high-temperature of a moderately hot 81.5°F (27.5°C), indicating a minimal shift from August's 86.4°F (30.2°C). Weather in September »
Weather in October
October, the same as September, in Tamms, Illinois, is another pleasant autumn month, with an average temperature varying between 51.1°F (10.6°C) and 68.9°F (20.5°C). With October's onset, the weather shows a temperature decrease, transitioning from a moderately hot 81.5°F (27.5°C) in September to an agreeable 68.9°F (20.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a moderate month in Tamms, Illinois, with temperature in the range of an average high of 55.4°F (13°C) and an average low of 40.1°F (4.5°C). Arrival of November comes with a reduction in the average high-temperature, falling from an agreeable 68.9°F (20.5°C) in October to a mild 55.4°F (13°C). Weather in November »
Weather in December
December, the first month of the winter in Tamms, is still a chilly month, with an average temperature fluctuating between 45.5°F (7.5°C) and 33.8°F (1°C). The onset of December coincides with a reduction in the average high-temperature, falling from a moderate 55.4°F (13°C) in November to a chilly 45.5°F (7.5°C). Weather in December »
[Resources]Frequently asked questions
What time of the year is the coldest in Tamms?
In Tamms, January is the coldest month, with temperatures averaging a high of 41.2°F (5.1°C) and a low of 28.4°F (-2°C).
How many days does it rain in Tamms?
Throughout the year, in Tamms, there are 156.3 rainfall days, and 36.65" (931mm) of precipitation is accumulated.
When does it snow in Tamms?
January through April, October through December are months with snowfall in Tamms, Illinois.
How many days does it snow in Tamms?
In Tamms, during the entire year, snow falls for 11.5 days and aggregates up to 4.88" (124mm) of snow.
When is the lowest UV index in Tamms?
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.
What are the most humid months in Tamms?
The months with the highest humidity in Tamms are February, March, May and December, with an average relative humidity of 78%.
When does it snow the most in Tamms?
The month with the most snowfall in Tamms, Illinois, is February, when snow falls for 3.8 days and typically aggregates up to 1.5" (38mm) of snow.
What is the month with the least sunshine in Tamms?
February has the least sunshine of the year in Tamms, with an average of 4.7h of sunshine.
When is Daylight Saving Time (DST) in Tamms?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Tamms, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What is the rainiest month in Tamms?
April is the month with the most rainfall. Rain falls for 15.2 days and accumulates 4.21" (107mm) of precipitation.
When it does not snow in Tamms?
In Tamms, Illinois, snow does not fall in May through September.
What is the month with the highest UV index in Tamms?
The months with the highest UV index in Tamms, Illinois, are May through August, with an average maximum UV index of 6.
When are the longest days in Tamms?
The month with the longest days in Tamms is June, with an average of 14h and 42min of daylight.
What month has the most sunshine in Tamms?
With an average of 10.7h of sunshine, June has the most sunshine of the year in Tamms, Illinois.
What month is the hottest in Tamms?
Tamms's temperatures tend to reach their peak averages in July, with a high of 88.2°F (31.2°C) and a low of 69.8°F (21°C).
What is the driest month in Tamms?
The month with the least rainfall in Tamms, Illinois, is September, when the rain falls for 11.4 days and typically collects 1.42" (36mm) of precipitation.
What is the least humid month in Tamms?
The least humid month is October, with an average relative humidity of 69%.
What is the month with the shortest days in Tamms?
With an average of 9h and 42min of daylight, December has the shortest days of the year in Tamms, Illinois.
Average temperature
Tamms, IL
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41.2°F).
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure
Tamms, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"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
Tamms, IL
- Average wind speed in January:
9.1mph - Average wind speed in February:
9.1mph - Average wind speed in March:
9.1mph - Average wind speed in April:
9mph - Average wind speed in May:
7.6mph - Average wind speed in June:
6.4mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.3mph - Average wind speed in October:
7.6mph - Average wind speed in November:
8.3mph - Average wind speed in December:
8.5mph
The windiest months (with the highest average wind speed) are January, February and March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity
Tamms, IL
The months with the highest relative humidity are February, March, May and December (78%).
The month with the lowest relative humidity is October (69%).
Average rainfall
Tamms, IL
- Average rainfall in January:
2.36" - Average rainfall in February:
3.58" - Average rainfall in March:
3.94" - Average rainfall in April:
4.21" - Average rainfall in May:
3.94" - Average rainfall in June:
2.95"
- Average rainfall in July:
2.83" - Average rainfall in August:
2.72" - Average rainfall in September:
1.42" - Average rainfall in October:
2.68" - Average rainfall in November:
3.11" - Average rainfall in December:
2.91"
The wettest month (with the highest rainfall) is April (4.21").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days
Tamms, IL
- Average rainfall days in January:
9.8 days - Average rainfall days in February:
11.4 days - Average rainfall days in March:
15.4 days - Average rainfall days in April:
15.2 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
14.7 days
- Average rainfall days in July:
15.7 days - Average rainfall days in August:
13.6 days - Average rainfall days in September:
11.4 days - Average rainfall days in October:
11.3 days - Average rainfall days in November:
10.2 days - Average rainfall days in December:
10.5 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.8 days).
Average snowfall
Tamms, IL
The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Tamms, IL
- Average snowfall days in January:
3.4 days - Average snowfall days in February:
3.8 days - Average snowfall days in March:
1.3 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
1.1 days - Average snowfall days in December:
1.5 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Tamms, IL
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 3min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January:
4h and 5min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 5min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 4min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 4min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Tamms, IL
- Average sunshine days in January:
17.4 days - Average sunshine days in February:
13.8 days - Average sunshine days in March:
12.8 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
13.1 days
- Average sunshine days in July:
13.5 days - Average sunshine days in August:
15.1 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
18.3 days - Average sunshine days in December:
18.4 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (12.3 days).
Average UV index
Tamms, IL
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 and December (UV index 2).
Average cloud cover
Tamms, IL
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility
Tamms, IL
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).
Tamms, Illinois, USA
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