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 Gridley, Illinois, is a freezing cold winter month, with temperature in the range of an average high of 30.4°F (-0.9°C) and an average low of 18.5°F (-7.5°C). With an average high-temperature of 30.4°F (-0.9°C) and an average low-temperature of 18.5°F (-7.5°C), January is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Gridley, is a wintry month, with temperature in the range of an average low of 22.1°F (-5.5°C) and an average high of 34.9°F (1.6°C). In February, the average high-temperature is relatively the same as in January - a cold 34.9°F (1.6°C). Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Gridley, Illinois, with an average temperature fluctuating between 47.8°F (8.8°C) and 33.4°F (0.8°C). In Gridley, Illinois, the average high-temperature in March rises from a wintry 34.9°F (1.6°C) in February to a chilly 47.8°F (8.8°C). Weather in March »
Weather in April
April is a moderate spring month in Gridley, Illinois, with temperature in the range of an average low of 43.9°F (6.6°C) and an average high of 59.7°F (15.4°C). In Gridley, Illinois, the average high-temperature in April rises from a chilly 47.8°F (8.8°C) in March to a mild 59.7°F (15.4°C). Weather in April »
Weather in May
May, the last month of the spring in Gridley, is an agreeable month, with temperature in the range of an average low of 54.9°F (12.7°C) and an average high of 71.6°F (22°C). In May, the average high-temperature rises from a moderate 59.7°F (15.4°C) in April to a pleasant 71.6°F (22°C). Weather in May »
Weather in June
June, the first month of the summer in Gridley, is a warm month, with temperature in the range of an average high of 79.5°F (26.4°C) and an average low of 62.4°F (16.9°C). In Gridley, the average high-temperature in June marginally rises from a pleasant 71.6°F (22°C) in May to a moderately hot 79.5°F (26.4°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Gridley, Illinois, with an average temperature varying between 81°F (27.2°C) and 64.6°F (18.1°C). With an average high-temperature of 81°F (27.2°C) and an average low-temperature of 64.6°F (18.1°C), July is the warmest month. In July, the average heat index is appraised at a tropical 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Gridley, is also a moderately hot month, with an average temperature ranging between min 62.6°F (17°C) and max 80.2°F (26.8°C). In August, the average high-temperature is relatively the same as in July - a still warm 80.2°F (26.8°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Gridley, Illinois, with an average temperature varying between 75.7°F (24.3°C) and 57°F (13.9°C). In Gridley, the average high-temperature in September is essentially the same as in August - a still moderately hot 75.7°F (24.3°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Gridley, Illinois, with an average temperature fluctuating between 61.9°F (16.6°C) and 46.6°F (8.1°C). In October, the average high-temperature decreases from a warm 75.7°F (24.3°C) in September to a comfortable 61.9°F (16.6°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Gridley, Illinois, with temperature in the range of an average low of 34.7°F (1.5°C) and an average high of 47.7°F (8.7°C). In November, the average high-temperature drops from a comfortable 61.9°F (16.6°C) in October to a chilly 47.7°F (8.7°C). Weather in November »
Weather in December
December, the first month of the winter in Gridley, is also a wintry month, with an average temperature ranging between min 25.9°F (-3.4°C) and max 36.5°F (2.5°C). In Gridley, the average high-temperature in December decreases from a chilly 47.7°F (8.7°C) in November to a wintry 36.5°F (2.5°C). Weather in December »
[Resources]FAQ
What is the coldest month in Gridley?
January is the coldest month in Gridley, with an average high-temperature of 30.4°F (-0.9°C) and an average low-temperature of 18.5°F (-7.5°C).
What is the driest month in Gridley?
January is the month with the least rainfall in Gridley, Illinois. Rain falls for 5.3 days and accumulates 0.94" (24mm) of precipitation.
How many days does it rain in Gridley?
Throughout the year, in Gridley, there are 131.6 rainfall days, and 18.86" (479mm) of precipitation is accumulated.
When does it snow in Gridley?
Months with snowfall in Gridley, Illinois, are January through April, November and December.
What is the snowiest month in Gridley?
The month with the most snowfall in Gridley, Illinois, is January, when snow falls for 10.6 days and typically aggregates up to 2.4" (61mm) of snow.
How many days does it snow in Gridley?
Throughout the year, there are 30.1 snowfall days, and 9.17" (233mm) of snow is accumulated.
What is the month with the least sunshine in Gridley?
The month with the least sunshine is January, with an average of 3.8h of sunshine.
When is Daylight Saving Time (DST) in Gridley?
On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from CDT to CST.
What is the wettest month in Gridley?
May is the month with the most rainfall in Gridley. Rain falls for 16.9 days and accumulates 2.68" (68mm) of precipitation.
When it does not snow in Gridley?
May through October are months without snowfall in Gridley, Illinois.
When are the longest days in Gridley?
With an average of 15h and 3min of daylight, June has the longest days of the year in Gridley.
What month has the most sunshine in Gridley?
June has the most sunshine of the year, with an average of 10h of sunshine.
What are the months with the highest UV index in Gridley?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What is the warmest month in Gridley?
With an average high-temperature of 81°F (27.2°C) and an average low-temperature of 64.6°F (18.1°C), July is the warmest month in Gridley, Illinois.
What is the most humid month in Gridley?
The most humid month in Gridley, Illinois, is July, with an average relative humidity of 85%.
What is the least humid month in Gridley?
October is the least humid month, with an average relative humidity of 71%.
What is the month with the shortest days in Gridley?
With an average of 9h and 19min of daylight, December has the shortest days of the year in Gridley.
When is the lowest UV index in Gridley?
December is the month with the lowest UV index in Gridley, Illinois, with an average maximum UV index of 1.
Average temperature
Gridley, IL
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.4°F).
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure
Gridley, 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:
29.94"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:
30.03"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Gridley, IL
- Average wind speed in January:
10.8mph - Average wind speed in February:
10.7mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.7mph - Average wind speed in May:
9.1mph - Average wind speed in June:
8mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9.6mph - Average wind speed in November:
10.3mph - Average wind speed in December:
10.3mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity
Gridley, IL
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Gridley, IL
- Average rainfall in January:
0.94" - Average rainfall in February:
0.98" - Average rainfall in March:
1.46" - Average rainfall in April:
2.17" - Average rainfall in May:
2.68" - Average rainfall in June:
2.24"
- Average rainfall in July:
2.01" - Average rainfall in August:
1.65" - Average rainfall in September:
1.3" - Average rainfall in October:
1.42" - Average rainfall in November:
1.02" - Average rainfall in December:
0.98"
The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days
Gridley, IL
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
5.1 days - Average rainfall days in March:
11.3 days - Average rainfall days in April:
13.2 days - Average rainfall days in May:
16.9 days - Average rainfall days in June:
15.7 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
10.6 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
8 days - Average rainfall days in December:
5.9 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is February (5.1 days).
Average snowfall
Gridley, IL
The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Gridley, IL
- Average snowfall days in January:
10.6 days - Average snowfall days in February:
7 days - Average snowfall days in March:
3.8 days - Average snowfall days in April:
0.7 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:
1.9 days - Average snowfall days in December:
5.9 days
The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Gridley, IL
- Average daylight in January:
9h and 39min - Average daylight in February:
10h and 41min - Average daylight in March:
11h and 58min - Average daylight in April:
13h and 20min - Average daylight in May:
14h and 28min - Average daylight in June:
15h and 3min
- Average daylight in July:
14h and 45min - Average daylight in August:
13h and 45min - Average daylight in September:
12h and 27min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 55min - Average daylight in December:
9h and 19min
The month with the longest days is June (Average daylight: 15h and 3min).
The month with the shortest days is December (Average daylight: 9h and 19min).
- Average sunshine in January:
3h and 48min - Average sunshine in February:
4h and 12min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 48min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
9h and 42min - Average sunshine in August:
9h and 48min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 48min - Average sunshine in November:
5h and 12min - Average sunshine in December:
4h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Gridley, IL
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
16.8 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
11.1 days
- Average sunshine days in July:
10.3 days - Average sunshine days in August:
15 days - Average sunshine days in September:
17 days - Average sunshine days in October:
18.9 days - Average sunshine days in November:
20 days - Average sunshine days in December:
19.5 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is July (10.3 days).
Average UV index
Gridley, IL
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Gridley, IL
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility
Gridley, 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).
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