Climate and monthly weather forecastPleasant Hill, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Pleasant Hill, Illinois, with temperature in the range of an average high of 34.9°F (1.6°C) and an average low of 22.1°F (-5.5°C). January, with average temperatures reaching a high of 34.9°F (1.6°C) and a low of 22.1°F (-5.5°C), is the coldest month. Weather in January »Weather in February
February, the last month of the winter in Pleasant Hill, is another cold month, with temperature in the range of an average high of 39.6°F (4.2°C) and an average low of 25.2°F (-3.8°C). The advent of February brings an average high-temperature of a still cold 39.6°F (4.2°C), exhibiting minor difference from the previous month. Weather in February »Weather in March
The first month of the spring, March, is a cool month in Pleasant Hill, Illinois, with an average temperature ranging between min 36.5°F (2.5°C) and max 52.2°F (11.2°C). March's onset brings a rise in the average high-temperature, moving from a cold 39.6°F (4.2°C) in February to a fresh 52.2°F (11.2°C). Weather in March »Weather in April
April in Pleasant Hill, Illinois, is a comfortable spring month, with an average temperature varying between 64°F (17.8°C) and 45.9°F (7.7°C). As April begins, there is an increase in the average high-temperature, moving from a cool 52.2°F (11.2°C) in March to a comfortable 64°F (17.8°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Pleasant Hill, Illinois, with an average temperature fluctuating between 73°F (22.8°C) and 55.9°F (13.3°C). May's arrival signals an increase in average high-temperatures, moving from April's refreshing 64°F (17.8°C) to a pleasant 73°F (22.8°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Pleasant Hill, Illinois, with temperature in the range of an average low of 64.8°F (18.2°C) and an average high of 82.2°F (27.9°C). As Pleasant Hill welcomes June, the average high-temperature sees a rise, transitioning from an agreeable 73°F (22.8°C) in May to a warm 82.2°F (27.9°C). Weather in June »Weather in July
July, like June, in Pleasant Hill, Illinois, is a moderately hot summer month, with an average temperature varying between 67.1°F (19.5°C) and 84.7°F (29.3°C). July is the month that records the highest temperatures, with averages ranging from a high of 84.7°F (29.3°C) to a low of 67.1°F (19.5°C). The heat index value for July is appraised at a fiery hot 96.8°F (36°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Pleasant Hill, Illinois, with an average temperature ranging between max 84.4°F (29.1°C) and min 65.5°F (18.6°C). August's onset brings an average high-temperature of a still moderately hot 84.4°F (29.1°C), showing a minute difference from July's 84.7°F (29.3°C). Weather in August »Weather in September
September, the first month of the autumn in Pleasant Hill, is also a moderately hot month, with an average temperature fluctuating between 58.6°F (14.8°C) and 78.3°F (25.7°C). As September begins, there is a minor decrease in the average high-temperature, softly falling from a warm 84.4°F (29.1°C) in August to a still moderately hot 78.3°F (25.7°C). Weather in September »Weather in October
October, like September, in Pleasant Hill, Illinois, is another refreshing autumn month, with an average temperature fluctuating between 47.1°F (8.4°C) and 64.4°F (18°C). Setting in of October comes with a decrease in the average high-temperature, moving from a moderately hot 78.3°F (25.7°C) in September to a comfortable 64.4°F (18°C). Weather in October »Weather in November
November, the last month of the autumn in Pleasant Hill, is also a fresh month, with an average temperature varying between 51.6°F (10.9°C) and 36.5°F (2.5°C). The shift from October to November involves a decrease in the average high-temperature, dropping from a comfortable 64.4°F (18°C) to a fresh 51.6°F (10.9°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Pleasant Hill, Illinois, with temperature in the range of an average low of 28.2°F (-2.1°C) and an average high of 40.5°F (4.7°C). Pleasant Hill's progression into December involves a drop in the average high-temperature, receding from a fresh 51.6°F (10.9°C) in November to a cold 40.5°F (4.7°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Pleasant Hill, IL
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (34.9°F).
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure
Pleasant Hill, IL
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"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:
30.02"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.11"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 (29.91"Hg).
Average wind speed
Pleasant Hill, IL
- Average wind speed in January:
9.7mph - Average wind speed in February:
9.7mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.6mph - Average wind speed in May:
7.8mph - Average wind speed in June:
7mph
- Average wind speed in July:
6mph - Average wind speed in August:
6.1mph - Average wind speed in September:
6.8mph - Average wind speed in October:
8.3mph - Average wind speed in November:
9.2mph - Average wind speed in December:
9.3mph
The windiest months (with the highest average wind speed) are January and February (9.7mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity
Pleasant Hill, IL
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Pleasant Hill, IL
- Average rainfall in January:
1.54" - Average rainfall in February:
1.46" - Average rainfall in March:
2.28" - Average rainfall in April:
2.83" - Average rainfall in May:
3.5" - Average rainfall in June:
3.23"
- Average rainfall in July:
2.44" - Average rainfall in August:
2.52" - Average rainfall in September:
2.36" - Average rainfall in October:
2.32" - Average rainfall in November:
1.65" - Average rainfall in December:
1.5"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is February (1.46").
Average rainfall days
Pleasant Hill, IL
- Average rainfall days in January:
6.3 days - Average rainfall days in February:
6.3 days - Average rainfall days in March:
13 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
16 days
- Average rainfall days in July:
16.2 days - Average rainfall days in August:
13.3 days - Average rainfall days in September:
11.9 days - Average rainfall days in October:
11.1 days - Average rainfall days in November:
8.9 days - Average rainfall days in December:
7.6 days
The month with the highest number of rainy days is May (17.3 days).
The months with the least rainy days are January and February (6.3 days).
Average snowfall
Pleasant Hill, IL
The month with the highest snowfall is January (3.03").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Pleasant Hill, IL
- Average snowfall days in January:
8.5 days - Average snowfall days in February:
7.4 days - Average snowfall days in March:
3.6 days - Average snowfall days in April:
0.5 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:
1.5 days - Average snowfall days in December:
4.5 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Pleasant Hill, IL
- Average daylight in January:
9h and 48min - 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:
14h and 54min
- Average daylight in July:
14h and 36min - 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: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
4h and 30min - Average sunshine in February:
4h and 30min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 6min - Average sunshine in May:
9h and 6min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
9h and 54min - Average sunshine in September:
9h and 18min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 48min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 4h and 30min).
Average sunshine days
Pleasant Hill, IL
- Average sunshine days in January:
17.3 days - Average sunshine days in February:
14.5 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
11.3 days - Average sunshine days in June:
10.9 days
- Average sunshine days in July:
12.1 days - Average sunshine days in August:
15 days - Average sunshine days in September:
15.9 days - Average sunshine days in October:
17.6 days - Average sunshine days in November:
18.5 days - Average sunshine days in December:
19.2 days
The month with the most sunshine days is December (19.2 days).
The month with the least sunshine days is June (10.9 days).
Average UV index
Pleasant Hill, 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
Pleasant Hill, IL
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 30).
Average visibility
Pleasant Hill, IL
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





