Climate and monthly weather forecastFulton, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, in Fulton, Illinois, is a freezing cold winter month, with an average temperature ranging between min 14.5°F (-9.7°C) and max 26.8°F (-2.9°C). Fulton's coldest weather arrives in January, when temperatures average a high of 26.8°F (-2.9°C) and a low of 14.5°F (-9.7°C). Weather in January »Weather in February
February, the last month of the winter in Fulton, is another freezing cold month, with an average temperature fluctuating between 18.3°F (-7.6°C) and 31.5°F (-0.3°C). Fulton's February reports an average high-temperature of a still subzero cold 31.5°F (-0.3°C), exhibiting a minor difference from January. Weather in February »Weather in March
March, the first month of the spring in Fulton, is a chilly month, with an average temperature ranging between max 45.9°F (7.7°C) and min 30.9°F (-0.6°C). The start of March is characterized by a significant increase in the average high-temperature, moving from a subzero cold 31.5°F (-0.3°C) in February to a frosty 45.9°F (7.7°C). Weather in March »Weather in April
April in Fulton, Illinois, is a moderate spring month, with temperature in the range of an average high of 58.1°F (14.5°C) and an average low of 41.2°F (5.1°C). Fulton in April experiences an increase in the average high-temperature, moving from March's chilly 45.9°F (7.7°C) to a mild 58.1°F (14.5°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Fulton, Illinois, with an average temperature varying between 69.4°F (20.8°C) and 52.7°F (11.5°C). The arrival of May signals an increase in the average high-temperature, moving from a refreshing 58.1°F (14.5°C) in April to an agreeable 69.4°F (20.8°C). Weather in May »Weather in June
June, the first month of the summer in Fulton, is a moderately hot month, with an average temperature varying between 61.3°F (16.3°C) and 78.4°F (25.8°C). The arrival of June brings a change in Fulton's weather, with average high-temperatures moving from May's pleasant 69.4°F (20.8°C) to a warm 78.4°F (25.8°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Fulton, Illinois, with temperature in the range of an average high of 80.2°F (26.8°C) and an average low of 63.9°F (17.7°C). July is the month that records the highest temperatures, with averages ranging from a high of 80.2°F (26.8°C) to a low of 63.9°F (17.7°C). Weather in July »Weather in August
August, the last month of the summer in Fulton, is also a moderately hot month, with an average temperature fluctuating between 61.9°F (16.6°C) and 79.9°F (26.6°C). The advent of August brings an average high-temperature of a still warm 79.9°F (26.6°C), almost identical to the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Fulton, is still a warm month, with an average temperature varying between 74.3°F (23.5°C) and 55°F (12.8°C). The onset of September aligns with a soft reduction in the average high-temperature, gently falling from a moderately hot 79.9°F (26.6°C) in August to a still warm 74.3°F (23.5°C). Weather in September »Weather in October
October, the same as September, in Fulton, Illinois, is a moderate autumn month, with an average temperature fluctuating between 44.6°F (7°C) and 60.6°F (15.9°C). October brings a drop in Fulton's average high-temperature, falling from a moderately hot 74.3°F (23.5°C) in September to a refreshing 60.6°F (15.9°C). Weather in October »Weather in November
November, the last month of the autumn in Fulton, is another chilly month, with an average temperature varying between 32.4°F (0.2°C) and 45.9°F (7.7°C). A clear reduction in the average high-temperature marks the arrival of November, falling from a moderate 60.6°F (15.9°C) in October to a frosty 45.9°F (7.7°C). Weather in November »Weather in December
December, the first month of the winter in Fulton, is still a cold month, with an average temperature fluctuating between 22.8°F (-5.1°C) and 33.6°F (0.9°C). Fulton's average high-temperature decreases in December, falling from a chilly 45.9°F (7.7°C) in November to a wintry 33.6°F (0.9°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Fulton, IL
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (26.8°F).
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure
Fulton, IL
- Average pressure in January:
30.13"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:
29.95"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Fulton, IL
- Average wind speed in January:
10mph - Average wind speed in February:
10.1mph - Average wind speed in March:
10mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9.3mph - Average wind speed in November:
10mph - Average wind speed in December:
9.6mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity
Fulton, IL
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Fulton, IL
- Average rainfall in January:
0.79" - Average rainfall in February:
0.79" - Average rainfall in March:
1.22" - Average rainfall in April:
2.13" - Average rainfall in May:
3.19" - Average rainfall in June:
2.44"
- Average rainfall in July:
2.05" - Average rainfall in August:
1.26" - Average rainfall in September:
1.54" - Average rainfall in October:
1.81" - Average rainfall in November:
1.3" - Average rainfall in December:
0.87"
The wettest month (with the highest rainfall) is May (3.19").
The driest months (with the least rainfall) are January and February (0.79").
Average rainfall days
Fulton, IL
- Average rainfall days in January:
4.3 days - Average rainfall days in February:
4.8 days - Average rainfall days in March:
10.8 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
16.9 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
13.9 days - Average rainfall days in August:
11.3 days - Average rainfall days in September:
9.9 days - Average rainfall days in October:
10.6 days - Average rainfall days in November:
7.2 days - Average rainfall days in December:
5.9 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (4.3 days).
Average snowfall
Fulton, IL
The month with the highest snowfall is January (2.8").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Fulton, IL
- Average snowfall days in January:
9.3 days - Average snowfall days in February:
8.3 days - Average snowfall days in March:
4.8 days - Average snowfall days in April:
1.1 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:
0.5 days - Average snowfall days in November:
2.6 days - Average snowfall days in December:
6.7 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
Fulton, IL
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
3h and 54min - Average sunshine in February:
4h and 6min - Average sunshine in March:
6h and 24min - Average sunshine in April:
7h and 42min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 42min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
9h and 48min - Average sunshine in September:
9h and 12min - Average sunshine in October:
5h and 24min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 12min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Fulton, IL
- Average sunshine days in January:
17.7 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
16.5 days - Average sunshine days in April:
13.1 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
12.1 days
- Average sunshine days in July:
13.6 days - Average sunshine days in August:
17.6 days - Average sunshine days in September:
18.3 days - Average sunshine days in October:
18.8 days - Average sunshine days in November:
19.3 days - Average sunshine days in December:
18.9 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (11.8 days).
Average UV index
Fulton, IL
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Fulton, IL
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility
Fulton, 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).





