Climate and monthly weather forecastCatlin, IL
Climate and monthly weather forecast
Weather in January
January, like December, in Catlin, Illinois, is an icy winter month, with an average temperature varying between 33.4°F (0.8°C) and 21°F (-6.1°C). The coldest time of the year is January, with temperatures averaging a high of 33.4°F (0.8°C) and a low of 21°F (-6.1°C). Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Catlin, Illinois, with an average temperature varying between 37.9°F (3.3°C) and 24.8°F (-4°C). The unfolding of February shows an average high-temperature of a still icy 37.9°F (3.3°C), indicating a slight variance from January's 33.4°F (0.8°C). Weather in February »Weather in March
March, the first month of the spring in Catlin, is a fresh month, with an average temperature varying between 50.4°F (10.2°C) and 34.9°F (1.6°C). Entering March, Catlin sees a temperature rise, with the average high-temperature advancing from February's wintry 37.9°F (3.3°C) to a cool 50.4°F (10.2°C). Weather in March »Weather in April
April is a comfortable spring month in Catlin, Illinois, with temperature in the range of an average low of 45.3°F (7.4°C) and an average high of 62.1°F (16.7°C). April indicates a change in the average high-temperature, moving up from a fresh 50.4°F (10.2°C) in March to an enjoyable 62.1°F (16.7°C). Weather in April »Weather in May
May, the last month of the spring in Catlin, is an agreeable month, with an average temperature ranging between min 55.2°F (12.9°C) and max 72°F (22.2°C). The arrival of May brings a change in Catlin's weather, with average high-temperatures moving from April's enjoyable 62.1°F (16.7°C) to a pleasant 72°F (22.2°C). Weather in May »Weather in June
June, the first month of the summer in Catlin, is a warm month, with an average temperature varying between 79.9°F (26.6°C) and 63.9°F (17.7°C). Observing a slight rise in June, the average high-temperature shifts from May's pleasant 72°F (22.2°C) to a moderately hot 79.9°F (26.6°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Catlin, Illinois, with an average temperature varying between 82°F (27.8°C) and 65.1°F (18.4°C). In Catlin, July is identified by the highest average temperatures, reaching a peak of 82°F (27.8°C) and a low of 65.1°F (18.4°C). July's mean heat index is estimated at a hot 89.6°F (32°C). Weather in July »Weather in August
August, the last month of the summer in Catlin, is another warm month, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 63.7°F (17.6°C). Catlin marks the onset of August with an average high-temperature of a still warm 81.1°F (27.3°C), a subtle shift from July's 82°F (27.8°C). Weather in August »Weather in September
September, the first month of the autumn in Catlin, is also a moderately hot month, with an average temperature varying between 76.1°F (24.5°C) and 57.9°F (14.4°C). The advent of September sees the average high-temperature at a still moderately hot 76.1°F (24.5°C), subtly shifted from August's 81.1°F (27.3°C). Weather in September »Weather in October
October, like September, in Catlin, Illinois, is another enjoyable autumn month, with an average temperature ranging between max 63.5°F (17.5°C) and min 47.1°F (8.4°C). Start of October brings a shift in the average high-temperature, falling from September's warm 76.1°F (24.5°C) to a comfortable 63.5°F (17.5°C). Weather in October »Weather in November
November, the last month of the autumn in Catlin, is another chilly month, with an average temperature varying between 36°F (2.2°C) and 49.3°F (9.6°C). The arrival of November corresponds with a reduction in the average high-temperature, down from October's refreshing 63.5°F (17.5°C) to a chilly 49.3°F (9.6°C). Weather in November »Weather in December
December, the first month of the winter in Catlin, is also a wintry month, with temperature in the range of an average low of 28.4°F (-2°C) and an average high of 38.7°F (3.7°C). In December, the average high-temperature decreases from a chilly 49.3°F (9.6°C) in November to a wintry 38.7°F (3.7°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Catlin, IL
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure
Catlin, 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:
29.95"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.98"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:
30.13"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 (29.93"Hg).
Average wind speed
Catlin, IL
- Average wind speed in January:
10mph - Average wind speed in February:
10.1mph - Average wind speed in March:
9.8mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8.1mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6mph - Average wind speed in August:
6mph - Average wind speed in September:
6.8mph - Average wind speed in October:
8.7mph - Average wind speed in November:
9.3mph - Average wind speed in December:
9.3mph
The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity
Catlin, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Catlin, IL
- Average rainfall in January:
1.38" - Average rainfall in February:
1.06" - Average rainfall in March:
1.38" - Average rainfall in April:
2.52" - Average rainfall in May:
2.52" - Average rainfall in June:
2.28"
The wettest months (with the highest rainfall) are April and May (2.52").
The driest month (with the least rainfall) is February (1.06").
Average rainfall days
Catlin, IL
- Average rainfall days in January:
7.5 days - Average rainfall days in February:
6.9 days - Average rainfall days in March:
11.6 days - Average rainfall days in April:
14.6 days - Average rainfall days in May:
17.9 days - Average rainfall days in June:
15 days
- Average rainfall days in July:
15.1 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
10.9 days - Average rainfall days in October:
10.2 days - Average rainfall days in November:
8.3 days - Average rainfall days in December:
8.3 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (6.9 days).
Average snowfall
Catlin, IL
The month with the highest snowfall is December (1.69").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Catlin, IL
- Average snowfall days in January:
7.1 days - Average snowfall days in February:
6.3 days - Average snowfall days in March:
3 days - Average snowfall days in April:
0.6 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:
0.2 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
5.3 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Catlin, 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 18min - Average sunshine in February:
5h and 24min - Average sunshine in March:
6h and 24min - Average sunshine in April:
7h and 6min - Average sunshine in May:
8h and 42min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 18min - Average sunshine in September:
8h and 36min - Average sunshine in October:
6h and 54min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 24min
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 18min).
Average sunshine days
Catlin, IL
- Average sunshine days in January:
18 days - Average sunshine days in February:
15.8 days - Average sunshine days in March:
16.5 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
10 days - Average sunshine days in June:
11.4 days
- Average sunshine days in July:
12.4 days - Average sunshine days in August:
16.1 days - Average sunshine days in September:
16.7 days - Average sunshine days in October:
18.4 days - Average sunshine days in November:
19.9 days - Average sunshine days in December:
17.7 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (10 days).
Average UV index
Catlin, 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
Catlin, IL
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility
Catlin, 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).





