Climate and monthly weather forecastPlano, IA
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Plano, Iowa, with temperature in the range of an average high of 30.6°F (-0.8°C) and an average low of 16.5°F (-8.6°C). In Plano, the lowest average temperatures are observed in January, with a high of 30.6°F (-0.8°C) and a low of 16.5°F (-8.6°C). Weather in January »Weather in February
February, the last month of the winter in Plano, is a cold month, with an average temperature fluctuating between 20.1°F (-6.6°C) and 34°F (1.1°C). Plano observes an average high-temperature of a cold 34°F (1.1°C) in February, barely different from 30.6°F (-0.8°C) in January. Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Plano, Iowa, with an average temperature ranging between min 33.4°F (0.8°C) and max 48.7°F (9.3°C). March signals a considerable rise in Plano's average high-temperature, advancing from a cold 34°F (1.1°C) in February to a chilly 48.7°F (9.3°C). Weather in March »Weather in April
April in Plano, Iowa, is a mild spring month, with an average temperature fluctuating between 42.8°F (6°C) and 60.4°F (15.8°C). April's arrival coincides with a temperature rise, moving from March's frosty 48.7°F (9.3°C) to a mild 60.4°F (15.8°C). Weather in April »Weather in May
May, the last month of the spring in Plano, is a pleasant month, with an average temperature varying between 53.1°F (11.7°C) and 69.4°F (20.8°C). The beginning of May marks a shift in the average high-temperature, moving from April's mild 60.4°F (15.8°C) to an agreeable 69.4°F (20.8°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Plano, Iowa, with an average temperature varying between 79.7°F (26.5°C) and 63.1°F (17.3°C). As June arrives, a rise in the average high-temperature is observed, moving from an agreeable 69.4°F (20.8°C) in May to a warm 79.7°F (26.5°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Plano, Iowa, with an average temperature fluctuating between 83.1°F (28.4°C) and 66°F (18.9°C). Plano experiences its highest average temperatures in July, reaching a peak of 83.1°F (28.4°C) and a minimum of 66°F (18.9°C). The heat index value during July is evaluated at a tropical 91.4°F (33°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Plano, Iowa, with an average temperature varying between 82°F (27.8°C) and 63.5°F (17.5°C). Plano experiences a subtle adjustment in high-temperatures to a still warm 82°F (27.8°C) with the onset of August, maintaining near parity with July's 83.1°F (28.4°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Plano, Iowa, with an average temperature varying between 56.5°F (13.6°C) and 76.1°F (24.5°C). In Plano, the average high-temperature in September slightly decreases from 82°F (27.8°C) in August to a still moderately hot 76.1°F (24.5°C). Weather in September »Weather in October
October, like September, in Plano, Iowa, is another enjoyable autumn month, with temperature in the range of an average high of 61.7°F (16.5°C) and an average low of 44.6°F (7°C). As October arrives, Plano's weather displays a notable decrease in high-temperatures, falling from September's moderately hot 76.1°F (24.5°C) to a refreshing 61.7°F (16.5°C). Weather in October »Weather in November
November, the last month of the autumn in Plano, is another chilly month, with an average temperature fluctuating between 48.4°F (9.1°C) and 33.6°F (0.9°C). The beginning of November marks a decrease in the average high-temperature, transitioning from an enjoyable 61.7°F (16.5°C) in October to a chilly 48.4°F (9.1°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Plano, Iowa, with temperature in the range of an average high of 35.8°F (2.1°C) and an average low of 23.9°F (-4.5°C). As December commences, the average high-temperature shows a reduction, transitioning from a chilly 48.4°F (9.1°C) in November to a wintry 35.8°F (2.1°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Plano, IA
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (30.6°F).
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure
Plano, IA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.89"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:
30.01"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed
Plano, IA
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.6mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.8mph - Average wind speed in June:
8mph
- Average wind speed in July:
7mph - Average wind speed in August:
7mph - Average wind speed in September:
8mph - Average wind speed in October:
9.3mph - Average wind speed in November:
10.2mph - Average wind speed in December:
10.1mph
The windiest months (with the highest average wind speed) are January, February and March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity
Plano, IA
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Plano, IA
- Average rainfall in January:
1.02" - Average rainfall in February:
1.1" - Average rainfall in March:
2.2" - Average rainfall in April:
2.68" - Average rainfall in May:
3.39" - Average rainfall in June:
3.98"
- Average rainfall in July:
2.64" - Average rainfall in August:
2.76" - Average rainfall in September:
2.8" - Average rainfall in October:
2.28" - Average rainfall in November:
1.42" - Average rainfall in December:
1.22"
The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days
Plano, IA
- Average rainfall days in January:
5 days - Average rainfall days in February:
5.4 days - Average rainfall days in March:
12.6 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
18.2 days - Average rainfall days in June:
18.1 days
- Average rainfall days in July:
16 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
12.1 days - Average rainfall days in October:
11.3 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
7 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (5 days).
Average snowfall
Plano, IA
The month with the highest snowfall is January (4.33").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Plano, IA
- Average snowfall days in January:
9.4 days - Average snowfall days in February:
8.1 days - Average snowfall days in March:
4.6 days - Average snowfall days in April:
1.3 days - Average snowfall days in May:
0.2 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:
0.5 days - Average snowfall days in November:
1.9 days - Average snowfall days in December:
7.2 days
The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Plano, IA
- Average daylight in January:
9h and 36min - 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 30min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
4h and 18min - Average sunshine in February:
4h and 48min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 12min - Average sunshine in May:
8h and 36min - Average sunshine in June:
10h and 6min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
9h and 54min - Average sunshine in September:
9h and 24min - Average sunshine in October:
5h and 48min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days
Plano, IA
- Average sunshine days in January:
17.8 days - Average sunshine days in February:
15.6 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
13.1 days - Average sunshine days in May:
10.4 days - Average sunshine days in June:
8.8 days
- Average sunshine days in July:
10.8 days - Average sunshine days in August:
12.9 days - Average sunshine days in September:
15.7 days - Average sunshine days in October:
18.1 days - Average sunshine days in November:
18.6 days - Average sunshine days in December:
18.1 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is June (8.8 days).
Average UV index
Plano, IA
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Plano, IA
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July, August and September (Cloud cover 29).
Average visibility
Plano, IA
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).





