Climate and monthly weather forecastPecatonica, IL
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Pecatonica, Illinois, with an average temperature ranging between max 26.2°F (-3.2°C) and min 14°F (-10°C). January, having an average high-temperature of 26.2°F (-3.2°C) and an average low-temperature of 14°F (-10°C), is the coldest month. Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Pecatonica, Illinois, with temperature in the range of an average high of 30.4°F (-0.9°C) and an average low of 17.4°F (-8.1°C). Upon the onset of February, Pecatonica witnesses an average high-temperature of a still subzero cold 30.4°F (-0.9°C), showing a close resemblance to the prior month. Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Pecatonica, Illinois, with an average temperature ranging between max 44.2°F (6.8°C) and min 29.8°F (-1.2°C). With the onset of March, the average high-temperature slightly shifts from February's freezing cold 30.4°F (-0.9°C) to a frosty 44.2°F (6.8°C). Weather in March »Weather in April
April is a moderate spring month in Pecatonica, Illinois, with an average temperature ranging between max 56.3°F (13.5°C) and min 39.7°F (4.3°C). April brings a temperature increase, with average high-temperatures moving from March's frosty 44.2°F (6.8°C) to a refreshing 56.3°F (13.5°C). Weather in April »Weather in May
May, the last month of the spring in Pecatonica, is an agreeable month, with an average temperature fluctuating between 51.3°F (10.7°C) and 68.5°F (20.3°C). With the beginning of May, Pecatonica's average high-temperature sees an increase, transitioning from a mild 56.3°F (13.5°C) in April to a pleasant 68.5°F (20.3°C). Weather in May »Weather in June
June, the first month of the summer in Pecatonica, is a warm month, with an average temperature varying between 60.1°F (15.6°C) and 77.2°F (25.1°C). June's arrival brings a slight change in high-temperatures, adjusting from a pleasant 68.5°F (20.3°C) in May to a moderately hot 77.2°F (25.1°C). Weather in June »Weather in July
July, like June, in Pecatonica, Illinois, is another warm summer month, with an average temperature fluctuating between 79.9°F (26.6°C) and 63.1°F (17.3°C). July brings the highest temperatures, with an average high of 79.9°F (26.6°C) and an average low of 63.1°F (17.3°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Pecatonica, Illinois, with an average temperature fluctuating between 78.1°F (25.6°C) and 60.6°F (15.9°C). Pecatonica marks the start of August with an average high-temperature of a still warm 78.1°F (25.6°C), hinting at a slight fluctuation from July's 79.9°F (26.6°C). Weather in August »Weather in September
September, the first month of the autumn in Pecatonica, is also an agreeable month, with an average temperature ranging between max 72.7°F (22.6°C) and min 54.3°F (12.4°C). The arrival of September suggests a slight decrease in the average high-temperature, moving from a moderately hot 78.1°F (25.6°C) in August to an agreeable 72.7°F (22.6°C). Weather in September »Weather in October
October, like September, is another refreshing autumn month in Pecatonica, Illinois, with temperature in the range of an average low of 43.7°F (6.5°C) and an average high of 59.5°F (15.3°C). The onset of October results in a decrease in the average high-temperature, receding from an agreeable 72.7°F (22.6°C) in September to a refreshing 59.5°F (15.3°C). Weather in October »Weather in November
November, the last month of the autumn in Pecatonica, is another chilly month, with an average temperature fluctuating between 31.8°F (-0.1°C) and 44.8°F (7.1°C). Pecatonica's weather undergoes a significant change with the arrival of November, as the average high-temperature drops from a mild 59.5°F (15.3°C) in October to a chilly 44.8°F (7.1°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Pecatonica, Illinois, with an average temperature ranging between max 32.5°F (0.3°C) and min 22.5°F (-5.3°C). With December's arrival, Pecatonica, Illinois, sees a decrease in average high-temperatures, moving from a chilly 44.8°F (7.1°C) in November to an icy 32.5°F (0.3°C). Weather in December »Updated: Jul 12, 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
January is the coldest month, with an average high-temperature of 26.2°F (-3.2°C) and an average low-temperature of 14°F (-10°C).
The most humid month is January, with an average relative humidity of 86%.
The months with the least rainfall are January and February Rain falls for 3.2 days and accumulates 0.35" (9mm) of rain.
In Pecatonica, during the entire year, the rain falls for 100.6 days and collects up to 7.99" (203mm) of precipitation.
Months with snowfall are January through April, October through December.
The month with the most snowfall is January, when snow falls for 8.1 days and typically aggregates up to 1.42" (36mm) of snow.
Throughout the year, there are 29.5 snowfall days, and 3.66" (93mm) of snow is accumulated.
January has the least sunshine of the year, with an average of 3.7h of sunshine.
The months with the lowest UV index are January and December, 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 months with the lowest humidity are April and October, with an average relative humidity of 75%.
The month with the most rainfall is May, when the rain falls for 13.8 days and typically aggregates up to 1.18" (30mm) of precipitation.
May through September are months without snowfall.
June has the longest days of the year, with an average of 15h and 12min of daylight.
In Pecatonica, July is the month with the highest recorded average temperatures, measuring a high of 79.9°F (26.6°C) and a low of 63.1°F (17.3°C).
July has the most sunshine of the year, with an average of 9.8h of sunshine.
July is the month with the highest UV index, with an average maximum UV index of 6.
With an average of 9h and 6min of daylight, December has the shortest days of the year.
Average temperature
Pecatonica, IL
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (26.2°F).
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14°F).
Average pressure
Pecatonica, IL
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.96"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 (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Pecatonica, IL
- Average wind speed in January:
9.8mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.7mph - Average wind speed in April:
10.2mph - Average wind speed in May:
8.6mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.3mph - Average wind speed in September:
7.4mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.7mph - Average wind speed in December:
9.4mph
The windiest month (with the highest average wind speed) is April (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity
Pecatonica, IL
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall
Pecatonica, IL
- Average rainfall in January:
0.35" - Average rainfall in February:
0.35" - Average rainfall in March:
0.47" - Average rainfall in April:
0.91" - Average rainfall in May:
1.18" - Average rainfall in June:
1.02"
- Average rainfall in July:
1.02" - Average rainfall in August:
0.59" - Average rainfall in September:
0.63" - Average rainfall in October:
0.67" - Average rainfall in November:
0.39" - Average rainfall in December:
0.39"
The wettest month (with the highest rainfall) is May (1.18").
The driest months (with the least rainfall) are January and February (0.35").
Average rainfall days
Pecatonica, IL
- Average rainfall days in January:
3.2 days - Average rainfall days in February:
3.5 days - Average rainfall days in March:
8.9 days - Average rainfall days in April:
11.1 days - Average rainfall days in May:
13.8 days - Average rainfall days in June:
13.5 days
- Average rainfall days in July:
10.8 days - Average rainfall days in August:
10.3 days - Average rainfall days in September:
7.7 days - Average rainfall days in October:
7.7 days - Average rainfall days in November:
5.5 days - Average rainfall days in December:
4.6 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (3.2 days).
Average snowfall
Pecatonica, IL
The month with the highest snowfall is January (1.42").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Pecatonica, IL
- Average snowfall days in January:
8.1 days - Average snowfall days in February:
7.2 days - Average snowfall days in March:
4 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:
0.4 days - Average snowfall days in November:
2.1 days - Average snowfall days in December:
6.6 days
The month with the highest number of snowfall days is January (8.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Pecatonica, 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 0min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 6min
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 6min).
- Average sunshine in January:
3h and 42min - Average sunshine in February:
3h and 48min - Average sunshine in March:
6h and 6min - Average sunshine in April:
7h and 30min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
9h and 48min - Average sunshine in August:
9h and 42min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 18min - Average sunshine in November:
5h and 6min - Average sunshine in December:
3h and 54min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Pecatonica, IL
- Average sunshine days in January:
21.9 days - Average sunshine days in February:
19.2 days - Average sunshine days in March:
20.3 days - Average sunshine days in April:
16.8 days - Average sunshine days in May:
15.4 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
16.3 days - Average sunshine days in August:
18 days - Average sunshine days in September:
20 days - Average sunshine days in October:
21.7 days - Average sunshine days in November:
22.3 days - Average sunshine days in December:
22.6 days
The month with the most sunshine days is December (22.6 days).
The month with the least sunshine days is June (12.8 days).
Average UV index
Pecatonica, IL
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Pecatonica, IL
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility
Pecatonica, IL
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
