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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, like December, in Hammond, Illinois, is another cold winter month, with temperature in the range of an average low of 20.8°F (-6.2°C) and an average high of 32.5°F (0.3°C). Hammond's January weather reaches an average high of 32.5°F (0.3°C) and an average low of 20.8°F (-6.2°C), making it the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Hammond, is another cold month, with an average temperature varying between 24.4°F (-4.2°C) and 37.6°F (3.1°C). With the onset of February, a modest change to a still wintry 37.6°F (3.1°C) from January's 32.5°F (0.3°C) is noted in high-temperature. Weather in February »
Weather in March
March, the first month of the spring in Hammond, is a cool month, with an average temperature varying between 50°F (10°C) and 35.1°F (1.7°C). March comes with an increase, with the average high-temperature moving from a wintry 37.6°F (3.1°C) in February to a fresh 50°F (10°C). Weather in March »
Weather in April
April in Hammond, Illinois, is an enjoyable spring month, with an average temperature ranging between min 45.9°F (7.7°C) and max 61.5°F (16.4°C). The shift from March to April brings an increase in the average high-temperature, moving from a fresh 50°F (10°C) to an enjoyable 61.5°F (16.4°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Hammond, Illinois, with an average temperature fluctuating between 72.9°F (22.7°C) and 56.5°F (13.6°C). Hammond in May sees a temperature change, with average high-temperatures moving from an enjoyable 61.5°F (16.4°C) in April to a pleasant 72.9°F (22.7°C). Weather in May »
Weather in June
June, the first month of the summer in Hammond, is a warm month, with an average temperature varying between 80.6°F (27°C) and 64°F (17.8°C). The beginning of June marks a minor shift in the average high-temperature, moving from May's pleasant 72.9°F (22.7°C) to a moderately hot 80.6°F (27°C). Weather in June »
Weather in July
July, like June, in Hammond, Illinois, is another warm summer month, with an average temperature fluctuating between 65.5°F (18.6°C) and 82°F (27.8°C). July, recognised by an average high temperature of 82°F (27.8°C) and a low of 65.5°F (18.6°C), is Hammond's warmest month. July's mean heat index is calculated to be a tropical 89.6°F (32°C). Weather in July »
Weather in August
August, the last month of the summer in Hammond, is another warm month, with an average temperature fluctuating between 81°F (27.2°C) and 63.7°F (17.6°C). Hammond indicates an average high-temperature of a still moderately hot 81°F (27.2°C) in August, showing minor variation from July's 82°F (27.8°C). Weather in August »
Weather in September
September, the first month of the autumn in Hammond, is still a warm month, with an average temperature ranging between max 76.6°F (24.8°C) and min 58.3°F (14.6°C). Upon the onset of September, Hammond witnesses an average high-temperature of a still moderately hot 76.6°F (24.8°C), showing a close resemblance to the prior month. Weather in September »
Weather in October
October, like September, in Hammond, Illinois, is another comfortable autumn month, with an average temperature ranging between min 48°F (8.9°C) and max 63.5°F (17.5°C). October implies a gentle temperature shift, with average high-temperatures reducing from September's moderately hot 76.6°F (24.8°C) to an enjoyable 63.5°F (17.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Hammond, is also a frosty month, with an average temperature varying between 36.1°F (2.3°C) and 49.5°F (9.7°C). November ushers in a slight temperature change, with average high-temperatures reducing from October's comfortable 63.5°F (17.5°C) to a frosty 49.5°F (9.7°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Hammond, Illinois, with an average temperature ranging between min 27.7°F (-2.4°C) and max 38.3°F (3.5°C). Hammond observes a minor decrease in the average high-temperature with the arrival of December, falling from November's chilly 49.5°F (9.7°C) to a cold 38.3°F (3.5°C). Weather in December »
Updated: Jul 1, 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
What time of the year is the coldest?
January is Hammond's coldest month, registering average high temperatures of 32.5°F (0.3°C) and lows of 20.8°F (-6.2°C).
How many days does it rain?
Throughout the year, there are 143.6 rainfall days, and 21.57" (548mm) of precipitation is accumulated.
When does it snow?
January through April, November and December are months with snowfall in Hammond.
When does it snow the most?
January is the month with the most snowfall. Snow falls for 9.3 days and accumulates 2.28" (58mm) of snow.
How many days does it snow?
Throughout the year, there are 28.9 snowfall days, and 7.01" (178mm) of snow is accumulated.
What is the month with the least sunshine?
January has the least sunshine of the year in Hammond, with an average of 4h of sunshine.
What are the months with the lowest UV index?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
When is Daylight Saving Time (DST)?
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.
What is the wettest month?
The months with the most rainfall are April and May, with an average 2.56" (65mm) of precipitation.
When it does not snow?
May through October are months without snowfall.
When are the longest days?
June has the longest days of the year, with an average of 14h and 54min of daylight.
What month has the most sunshine?
The month with the most sunshine is June, with an average of 10.2h of sunshine.
When is the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What time of the year is the hottest?
In Hammond, July is known for its average highest temperatures, reaching a high of 82°F (27.8°C) and a low of 65.5°F (18.6°C).
What is the most humid month?
July is the most humid month, with an average relative humidity of 84%.
What is the driest month?
September is the month with the least rainfall. Rain falls for 11.9 days and accumulates 1.14" (29mm) of precipitation.
What is the least humid month?
October is the least humid month, with an average relative humidity of 70%.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 24min of daylight.
Average temperature
Hammond, 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 (65.5°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure
Hammond, IL
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.96"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:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Hammond, IL
- Average wind speed in January:
10.9mph - Average wind speed in February:
10.7mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.7mph - Average wind speed in May:
8.9mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
6.4mph - Average wind speed in August:
6.3mph - Average wind speed in September:
7.3mph - Average wind speed in October:
9.6mph - Average wind speed in November:
10.2mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity
Hammond, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Hammond, IL
- Average rainfall in January:
1.5" - Average rainfall in February:
1.18" - Average rainfall in March:
1.89" - Average rainfall in April:
2.56" - Average rainfall in May:
2.56" - Average rainfall in June:
2.32"
- Average rainfall in July:
2.05" - Average rainfall in August:
2.01" - Average rainfall in September:
1.14" - Average rainfall in October:
1.81" - Average rainfall in November:
1.38" - Average rainfall in December:
1.18"
The wettest months (with the highest rainfall) are April and May (2.56").
The driest month (with the least rainfall) is September (1.14").
Average rainfall days
Hammond, IL
- Average rainfall days in January:
7.1 days - Average rainfall days in February:
6.5 days - Average rainfall days in March:
12 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
16.5 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
14.3 days - Average rainfall days in September:
11.9 days - Average rainfall days in October:
10.6 days - Average rainfall days in November:
9.1 days - Average rainfall days in December:
8.4 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is February (6.5 days).
Average snowfall
Hammond, IL
The month with the highest snowfall is January (2.28").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Hammond, IL
- Average snowfall days in January:
9.3 days - Average snowfall days in February:
7.3 days - Average snowfall days in March:
2.7 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 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
1.8 days - Average snowfall days in December:
6.9 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Hammond, IL
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
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 2min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 1min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 5min - Average sunshine in October:
6h and 1min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 3min
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
Hammond, IL
- Average sunshine days in January:
15.6 days - Average sunshine days in February:
14.4 days - Average sunshine days in March:
15.3 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
11 days
- Average sunshine days in July:
10.5 days - Average sunshine days in August:
12 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
18.1 days - Average sunshine days in November:
18.1 days - Average sunshine days in December:
16.1 days
The months with the most sunshine days are October and November (18.1 days).
The month with the least sunshine days is July (10.5 days).
Average UV index
Hammond, IL
The months with the highest UV index are 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
Hammond, 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
Hammond, 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).
Hammond, Illinois, USA
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