Climate and monthly weather forecastLatham, IL
Climate and monthly weather forecast
Weather in January
January, like December, in Latham, Illinois, is another cold winter month, with an average temperature fluctuating between 20.5°F (-6.4°C) and 32.5°F (0.3°C). January is the coldest month, with the temperature often reaching an average high of 32.5°F (0.3°C) and an average low of 20.5°F (-6.4°C). Weather in January »Weather in February
The last month of the winter, February, is another cold month in Latham, Illinois, with an average temperature fluctuating between 37.6°F (3.1°C) and 24.6°F (-4.1°C). February is marked by an average high-temperature of a still cold 37.6°F (3.1°C), almost identical to the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a cool month in Latham, Illinois, with temperature in the range of an average high of 50°F (10°C) and an average low of 35.2°F (1.8°C). Latham's weather in March shows a rise in the average high-temperature, moving up from February's wintry 37.6°F (3.1°C) to a fresh 50°F (10°C). Weather in March »Weather in April
April is a refreshing spring month in Latham, Illinois, with an average temperature fluctuating between 62.2°F (16.8°C) and 45.9°F (7.7°C). In Latham, the average high-temperature in April rises, from a cool 50°F (10°C) in March, to an enjoyable 62.2°F (16.8°C). Weather in April »Weather in May
May, the last month of the spring in Latham, is a pleasant month, with an average temperature fluctuating between 56.5°F (13.6°C) and 72.9°F (22.7°C). The transition from April to May brings a temperature rise, with average high-temperatures increasing from a refreshing 62.2°F (16.8°C) to a pleasant 72.9°F (22.7°C). Weather in May »Weather in June
June, the first month of the summer in Latham, is a moderately hot month, with an average temperature varying between 63.9°F (17.7°C) and 80.6°F (27°C). In June, the average high-temperature marginally rises from an agreeable 72.9°F (22.7°C) in May to a moderately hot 80.6°F (27°C). Weather in June »Weather in July
July, like June, in Latham, Illinois, is a moderately hot summer month, with an average temperature ranging between max 82°F (27.8°C) and min 65.7°F (18.7°C). Latham's July weather, marked by an average high temperature of 82°F (27.8°C) and an average low temperature of 65.7°F (18.7°C), is the warmest in the year. The heat index for July is computed to be a hot 89.6°F (32°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Latham, Illinois, with an average temperature varying between 63.9°F (17.7°C) and 81.3°F (27.4°C). August's average high-temperature stands at a still moderately hot 81.3°F (27.4°C), showing little deviation from July's 82°F (27.8°C). Weather in August »Weather in September
September, the first month of the autumn in Latham, is also a moderately hot month, with an average temperature varying between 77°F (25°C) and 58.5°F (14.7°C). The high-temperature average in September for Latham is a still moderately hot 77°F (25°C), staying closely aligned with August's conditions. Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Latham, Illinois, with temperature in the range of an average high of 63.9°F (17.7°C) and an average low of 47.8°F (8.8°C). October ushers in a slight temperature change, with average high-temperatures reducing from September's warm 77°F (25°C) to a comfortable 63.9°F (17.7°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Latham, Illinois, with an average temperature fluctuating between 49.8°F (9.9°C) and 36°F (2.2°C). The start of November signals a decrease in the average high-temperature, transitioning from a comfortable 63.9°F (17.7°C) in October to a frosty 49.8°F (9.9°C). Weather in November »Weather in December
December, the first month of the winter in Latham, is also an icy month, with an average temperature ranging between max 38.3°F (3.5°C) and min 27.5°F (-2.5°C). Latham's weather in December involves a decrease in the average high-temperature, moving down from November's chilly 49.8°F (9.9°C) to a wintry 38.3°F (3.5°C). Weather in December »Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In Latham, January registers the lowest temperatures, averaging 32.5°F (0.3°C) at the peak and 20.5°F (-6.4°C) at the lowest.
In Latham, during the entire year, the rain falls for 141.8 days and collects up to 22.24" (565mm) of precipitation.
January through April, November and December are months with snowfall.
January is the month with the most snowfall. Snow falls for 9.4 days and accumulates 2.24" (57mm) of snow.
Throughout the year, there are 29.7 snowfall days, and 7.13" (181mm) of snow is accumulated.
With an average of 4h of sunshine, January has the least sunshine of the year.
January is the month with the lowest UV index, with an average maximum UV index of 1.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.
The month with the most rainfall is May, when the rain falls for 17 days and typically aggregates up to 2.68" (68mm) of precipitation.
In Latham, snow does not fall in May through October.
The month with the longest days is June, with an average of 15h and 0min of daylight.
The month with the most sunshine in Latham is June, with an average of 10.2h of sunshine.
June through August, with an average maximum UV index of 6, are months with the highest UV index.
The average temperatures reach their apex in July, averaging 82°F (27.8°C) at the high end and 65.7°F (18.7°C) at the low end.
With an average relative humidity of 84%, July is the most humid month in Latham.
October is the least humid month, with an average relative humidity of 70%.
The month with the least rainfall is December, when the rain falls for 8.3 days and typically collects 1.1" (28mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 24min of daylight.
Average temperature
Latham, IL
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.5°F).
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure
Latham, IL
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Latham, IL
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.6mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6.3mph - Average wind speed in September:
7.3mph - Average wind speed in October:
9.1mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.8mph
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 (6.3mph).
Average humidity
Latham, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Latham, IL
- Average rainfall in January:
1.42" - Average rainfall in February:
1.18" - Average rainfall in March:
1.61" - Average rainfall in April:
2.44" - Average rainfall in May:
2.68" - Average rainfall in June:
2.48"
- Average rainfall in July:
2.05" - Average rainfall in August:
2.13" - Average rainfall in September:
1.81" - Average rainfall in October:
2.01" - Average rainfall in November:
1.34" - Average rainfall in December:
1.1"
The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is December (1.1").
Average rainfall days
Latham, IL
- Average rainfall days in January:
6.3 days - Average rainfall days in February:
6.3 days - Average rainfall days in March:
11.7 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
17 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
14.3 days - Average rainfall days in September:
11.8 days - Average rainfall days in October:
10.6 days - Average rainfall days in November:
8.6 days - Average rainfall days in December:
8.3 days
The month with the highest number of rainy days is May (17 days).
The months with the least rainy days are January and February (6.3 days).
Average snowfall
Latham, IL
The month with the highest snowfall is January (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Latham, IL
- Average snowfall days in January:
9.4 days - Average snowfall days in February:
7.1 days - Average snowfall days in March:
2.9 days - Average snowfall days in April:
0.8 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:
0.1 days - Average snowfall days in October:
0.3 days - Average snowfall days in November:
2.4 days - Average snowfall days in December:
6.7 days
The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight / Average sunshine
Latham, IL
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
4h and 18min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 0min - Average sunshine in May:
9h and 6min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
9h and 42min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days
Latham, IL
- Average sunshine days in January:
16.3 days - Average sunshine days in February:
14.7 days - Average sunshine days in March:
15.7 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
11.8 days
- Average sunshine days in July:
10.9 days - Average sunshine days in August:
13.1 days - Average sunshine days in September:
15.8 days - Average sunshine days in October:
18.1 days - Average sunshine days in November:
18.9 days - Average sunshine days in December:
17.1 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (10.8 days).
Average UV index
Latham, IL
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Latham, IL
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are June and September (Cloud cover 31).
Average visibility
Latham, IL
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).
