Climate and monthly weather forecastValmeyer, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Valmeyer, Illinois, with an average temperature ranging between max 38.3°F (3.5°C) and min 25.2°F (-3.8°C). January stands out as Valmeyer's coldest month, with temperatures ranging between an average high of 38.3°F (3.5°C) and a low of 25.2°F (-3.8°C). Weather in January »Weather in February
The last month of the winter, February, is a chilly month in Valmeyer, Illinois, with an average temperature varying between 28.4°F (-2°C) and 43.2°F (6.2°C). With the transition into February, Valmeyer notes an average high-temperature of a frosty 43.2°F (6.2°C), closely resembling January. Weather in February »Weather in March
The first month of the spring, March, is a fresh month in Valmeyer, Illinois, with an average temperature fluctuating between 38.3°F (3.5°C) and 54.5°F (12.5°C). Valmeyer's weather shows a temperature rise with the arrival of March, moving from a chilly 43.2°F (6.2°C) in February to a cool 54.5°F (12.5°C). Weather in March »Weather in April
April in Valmeyer, Illinois, is an enjoyable spring month, with temperature in the range of an average low of 47.8°F (8.8°C) and an average high of 65.7°F (18.7°C). In April, the average high-temperature increases from a cool 54.5°F (12.5°C) in March to a comfortable 65.7°F (18.7°C). Weather in April »Weather in May
May, the last month of the spring in Valmeyer, is a warm month, with an average temperature ranging between max 75°F (23.9°C) and min 57.7°F (14.3°C). As April transitions into May, a change in temperatures is observed, with average highs moving from a refreshing 65.7°F (18.7°C) to a warm 75°F (23.9°C). Weather in May »Weather in June
June, the first month of the summer in Valmeyer, is still a warm month, with an average temperature fluctuating between 84.6°F (29.2°C) and 66.6°F (19.2°C). June's onset brings a rise in the average high-temperature, moving from 75°F (23.9°C) in May to a still moderately hot 84.6°F (29.2°C). Weather in June »Weather in July
July is a tropical summer month in Valmeyer, Illinois, with an average temperature fluctuating between 87.3°F (30.7°C) and 68.7°F (20.4°C). In Valmeyer, the peak average temperatures are observed in July, with a high of 87.3°F (30.7°C) and a low of 68.7°F (20.4°C). The average heat index in July is appraised at a very hot 102.2°F (39°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Valmeyer, Illinois, with an average temperature fluctuating between 85.1°F (29.5°C) and 66.6°F (19.2°C). As Valmeyer transitions into August, the average high-temperature stands at a warm 85.1°F (29.5°C), offering little variation from the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Valmeyer, Illinois, with temperature in the range of an average low of 60.3°F (15.7°C) and an average high of 79.5°F (26.4°C). With the onset of September, Valmeyer's average high-temperature slightly adjusts, moderately receding from August's 85.1°F (29.5°C) to a still warm 79.5°F (26.4°C). Weather in September »Weather in October
October, like September, in Valmeyer, Illinois, is another comfortable autumn month, with an average temperature fluctuating between 66.7°F (19.3°C) and 48.9°F (9.4°C). With October's onset, the weather shows a temperature decrease, transitioning from a moderately hot 79.5°F (26.4°C) in September to a refreshing 66.7°F (19.3°C). Weather in October »Weather in November
The last month of the autumn, November, is also a fresh month in Valmeyer, Illinois, with an average temperature fluctuating between 53.6°F (12°C) and 38.1°F (3.4°C). The transition into November is accompanied by a temperature decrease, with the average high-temperature shifting from a refreshing 66.7°F (19.3°C) in October to a fresh 53.6°F (12°C). Weather in November »Weather in December
December, the first month of the winter in Valmeyer, is also a frosty month, with an average temperature ranging between max 43.2°F (6.2°C) and min 30.9°F (-0.6°C). A shift in the average high-temperature occurs in December, reducing from a fresh 53.6°F (12°C) in November to a chilly 43.2°F (6.2°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Valmeyer, IL
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (38.3°F).
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure
Valmeyer, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"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:
30.02"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Valmeyer, IL
- Average wind speed in January:
9.3mph - Average wind speed in February:
9.1mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.8mph - Average wind speed in May:
7.2mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.5mph - Average wind speed in September:
5.8mph - Average wind speed in October:
7.7mph - Average wind speed in November:
8.3mph - Average wind speed in December:
8.5mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity
Valmeyer, IL
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Valmeyer, IL
- Average rainfall in January:
1.46" - Average rainfall in February:
1.34" - Average rainfall in March:
1.97" - Average rainfall in April:
2.64" - Average rainfall in May:
3.19" - Average rainfall in June:
2.91"
- Average rainfall in July:
2.8" - Average rainfall in August:
2.76" - Average rainfall in September:
1.61" - Average rainfall in October:
1.85" - Average rainfall in November:
1.34" - Average rainfall in December:
1.77"
The wettest month (with the highest rainfall) is May (3.19").
The driest months (with the least rainfall) are February and November (1.34").
Average rainfall days
Valmeyer, IL
- Average rainfall days in January:
6.3 days - Average rainfall days in February:
7.5 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
14.6 days - Average rainfall days in May:
15.4 days - Average rainfall days in June:
14.7 days
- Average rainfall days in July:
16.2 days - Average rainfall days in August:
13.8 days - Average rainfall days in September:
11.9 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
9 days - Average rainfall days in December:
8.1 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is January (6.3 days).
Average snowfall
Valmeyer, IL
The month with the highest snowfall is January (1.89").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days
Valmeyer, IL
- Average snowfall days in January:
6.3 days - Average snowfall days in February:
5.1 days - Average snowfall days in March:
2 days - Average snowfall days in April:
0.3 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:
0.1 days - Average snowfall days in October:
0 days - Average snowfall days in November:
1.4 days - Average snowfall days in December:
3.5 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight / Average sunshine
Valmeyer, IL
- Average daylight in January:
9h and 54min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 48min
- Average daylight in July:
14h and 30min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 36min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
4h and 42min - Average sunshine in February:
4h and 54min - Average sunshine in March:
6h and 36min - Average sunshine in April:
8h and 36min - Average sunshine in May:
9h and 30min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 18min - Average sunshine in September:
9h and 30min - Average sunshine in October:
6h and 18min - Average sunshine in November:
5h and 36min - Average sunshine in December:
5h and 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days
Valmeyer, IL
- Average sunshine days in January:
20.6 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
15 days - Average sunshine days in April:
14.9 days - Average sunshine days in May:
13.3 days - Average sunshine days in June:
12.9 days
- Average sunshine days in July:
12.5 days - Average sunshine days in August:
14.9 days - Average sunshine days in September:
15.9 days - Average sunshine days in October:
20 days - Average sunshine days in November:
19.2 days - Average sunshine days in December:
20.4 days
The month with the most sunshine days is January (20.6 days).
The month with the least sunshine days is July (12.5 days).
Average UV index
Valmeyer, IL
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover
Valmeyer, IL
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 27).
Average visibility
Valmeyer, 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).





