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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Mendota, Illinois, is a freezing cold winter month, with temperature in the range of an average low of 16.7°F (-8.5°C) and an average high of 28.6°F (-1.9°C). Mendota's temperature records reveal January as the coldest month, marked by average highs of 28.6°F (-1.9°C) and lows of 16.7°F (-8.5°C). Weather in January »
Weather in February
February, the last month of the winter in Mendota, is a wintry month, with temperature in the range of an average high of 32.5°F (0.3°C) and an average low of 19.6°F (-6.9°C). February brings an average high-temperature of a wintry 32.5°F (0.3°C), showing a slight difference from January's 28.6°F (-1.9°C). Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Mendota, Illinois, with an average temperature ranging between max 46°F (7.8°C) and min 31.6°F (-0.2°C). Mendota's transition into March is marked by a rise in the average high-temperature, advancing from an icy 32.5°F (0.3°C) in February to a chilly 46°F (7.8°C). Weather in March »
Weather in April
April in Mendota, Illinois, is a moderate spring month, with an average temperature ranging between max 57.9°F (14.4°C) and min 41.7°F (5.4°C). April signals a shift in the average high-temperature, moving from March's frosty 46°F (7.8°C) to a mild 57.9°F (14.4°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Mendota, Illinois, with an average temperature varying between 52.9°F (11.6°C) and 70.3°F (21.3°C). With the transition into May, Mendota experiences an increase in average high-temperatures, moving up from a moderate 57.9°F (14.4°C) in April to an agreeable 70.3°F (21.3°C). Weather in May »
Weather in June
June, the first month of the summer in Mendota, is a moderately hot month, with an average temperature ranging between max 78.6°F (25.9°C) and min 61.3°F (16.3°C). As Mendota transitions into June, the average high-temperature is observed to slightly rise from an agreeable 70.3°F (21.3°C) in May to a warm 78.6°F (25.9°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Mendota, Illinois, with an average temperature ranging between min 64.2°F (17.9°C) and max 80.6°F (27°C). July is the warmest month, exhibiting average temperatures of 80.6°F (27°C) at the peak and 64.2°F (17.9°C) at the base. The heat index in July is appraised at a tropical 86°F (30°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Mendota, Illinois, with an average temperature varying between 62.1°F (16.7°C) and 79.2°F (26.2°C). The commencement of August brings an average high-temperature of a still moderately hot 79.2°F (26.2°C), marking an inconsequential divergence from July. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Mendota, Illinois, with temperature in the range of an average high of 74.1°F (23.4°C) and an average low of 55.8°F (13.2°C). The commencement of September notes an average high-temperature of a still moderately hot 74.1°F (23.4°C), exhibiting little difference from the previous month. Weather in September »
Weather in October
October, like September, in Mendota, Illinois, is another enjoyable autumn month, with an average temperature varying between 61.2°F (16.2°C) and 45.3°F (7.4°C). Mendota in October experiences a subtle temperature decline, with average high-temperatures reducing from a moderately hot 74.1°F (23.4°C) in September to a refreshing 61.2°F (16.2°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Mendota, Illinois, with temperature in the range of an average low of 33.4°F (0.8°C) and an average high of 46.6°F (8.1°C). Mendota's weather in November is characterized by a distinct drop in the average high-temperature, reducing from a comfortable 61.2°F (16.2°C) in October to a chilly 46.6°F (8.1°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Mendota, Illinois, with temperature in the range of an average low of 24.1°F (-4.4°C) and an average high of 34.5°F (1.4°C). December shows a mild decline in the average high-temperature, falling from November's frosty 46.6°F (8.1°C) to a cold 34.5°F (1.4°C). Weather in December »
Updated: Feb 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
What part of the year is the coldest in Mendota?
In Mendota, Illinois, the lowest temperatures are generally noted in January, averaging a high of 28.6°F (-1.9°C) and a low of 16.7°F (-8.5°C).
What is the driest month in Mendota?
The months with the least rainfall in Mendota, Illinois, are January, February, November and December Rain falls for 3.6 days and accumulates 0.51" (13mm) of rain.
How much does it rain in Mendota?
Throughout the year, there are 107.9 rainfall days, and 9.96" (253mm) of precipitation is accumulated.
When does it snow in Mendota?
Months with snowfall in Mendota are January through April, October through December.
What is the snowiest month in Mendota?
January is the month with the most snowfall. Snow falls for 8.6 days and accumulates 0.98" (25mm) of snow.
How many days does it snow in Mendota?
In Mendota, during the entire year, snow falls for 29.3 days and aggregates up to 3.86" (98mm) of snow.
What is the month with the least sunshine in Mendota?
January has the least sunshine of the year, with an average of 3.7h of sunshine.
What are the months with the lowest UV index in Mendota?
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Mendota.
When is Daylight Saving Time (DST) in Mendota?
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.
What is the rainiest month in Mendota?
The month with the most rainfall is May, when the rain falls for 13.8 days and typically aggregates up to 1.42" (36mm) of precipitation.
When it does not snow in Mendota?
May through September are months without snowfall.
When are the longest days in Mendota?
June has the longest days of the year in Mendota, with an average of 15h and 6min of daylight.
What is the month with the most sunshine in Mendota?
The months with the most sunshine in Mendota are June through August, with an average of 9.5h of sunshine.
When is the highest UV index in Mendota?
June and July, with an average maximum UV index of 6, are months with the highest UV index in Mendota, Illinois.
What is the hottest time of year in Mendota?
Mendota records the warmest temperatures in July, averaging a high of 80.6°F (27°C) and a low of 64.2°F (17.9°C).
What is the most humid month in Mendota?
With an average relative humidity of 85%, July is the most humid month in Mendota, Illinois.
What is the least humid month in Mendota?
October is the least humid month, with an average relative humidity of 73%.
What is the month with the shortest days in Mendota?
December has the shortest days of the year, with an average of 9h and 12min of daylight.
Average temperature
Mendota, IL
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (28.6°F).
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure
Mendota, IL
- Average pressure in January:
30.12"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:
29.96"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"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
Mendota, IL
- Average wind speed in January:
10.2mph - Average wind speed in February:
10.1mph - Average wind speed in March:
9.9mph - Average wind speed in April:
10.3mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.6mph
- 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:
9.1mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.6mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity
Mendota, IL
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Mendota, IL
- Average rainfall in January:
0.51" - Average rainfall in February:
0.51" - Average rainfall in March:
0.63" - Average rainfall in April:
1.3" - Average rainfall in May:
1.42" - Average rainfall in June:
1.06"
- Average rainfall in July:
1.02" - Average rainfall in August:
0.87" - Average rainfall in September:
0.71" - Average rainfall in October:
0.91" - Average rainfall in November:
0.51" - Average rainfall in December:
0.51"
The wettest month (with the highest rainfall) is May (1.42").
The driest months (with the least rainfall) are January, February, November and December (0.51").
Average rainfall days
Mendota, IL
- Average rainfall days in January:
3.6 days - Average rainfall days in February:
3.8 days - Average rainfall days in March:
8.8 days - Average rainfall days in April:
11.2 days - Average rainfall days in May:
13.8 days - Average rainfall days in June:
12.8 days
- Average rainfall days in July:
13.1 days - Average rainfall days in August:
12.2 days - Average rainfall days in September:
8.5 days - Average rainfall days in October:
9.3 days - Average rainfall days in November:
6.2 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 (3.6 days).
Average snowfall
Mendota, IL
The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Mendota, IL
- Average snowfall days in January:
8.6 days - Average snowfall days in February:
6.7 days - Average snowfall days in March:
4 days - Average snowfall days in April:
1.3 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 days - Average snowfall days in October:
0.4 days - Average snowfall days in November:
2.3 days - Average snowfall days in December:
6 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Mendota, IL
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
3h and 4min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 3min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
9h and 3min - Average sunshine in August:
9h and 3min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 1min
The months with the most sunshine are June, July and August (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Mendota, IL
- Average sunshine days in January:
21.4 days - Average sunshine days in February:
19.5 days - Average sunshine days in March:
18.6 days - Average sunshine days in April:
16.1 days - Average sunshine days in May:
14.8 days - Average sunshine days in June:
14.3 days
- Average sunshine days in July:
13.3 days - Average sunshine days in August:
15.3 days - Average sunshine days in September:
19.4 days - Average sunshine days in October:
20.1 days - Average sunshine days in November:
21.5 days - Average sunshine days in December:
21.8 days
The month with the most sunshine days is December (21.8 days).
The month with the least sunshine days is July (13.3 days).
Average UV index
Mendota, IL
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Mendota, IL
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility
Mendota, 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).
Mendota, Illinois, USA
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