Climate and monthly weather forecastPierson, IA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Pierson, Iowa, is a freezing cold winter month, with an average temperature fluctuating between 13.3°F (-10.4°C) and 26.2°F (-3.2°C). With average high and low temperatures of 26.2°F (-3.2°C) and 13.3°F (-10.4°C) respectively, January is Pierson's coldest month. Weather in January »Weather in February
February, the last month of the winter in Pierson, is also a subzero cold month, with an average temperature fluctuating between 30.2°F (-1°C) and 16.7°F (-8.5°C). Entering February, the average high-temperature is recorded at a still subzero cold 30.2°F (-1°C), exhibiting a minimal shift from January's 26.2°F (-3.2°C). Weather in February »Weather in March
March, the first month of the spring in Pierson, is a frosty month, with temperature in the range of an average low of 31.1°F (-0.5°C) and an average high of 46.2°F (7.9°C). The shift from February to March sees a distinct increase in the average high-temperature, escalating from a subzero cold 30.2°F (-1°C) to a frosty 46.2°F (7.9°C). Weather in March »Weather in April
April in Pierson, Iowa, is a moderate spring month, with temperature in the range of an average low of 41.5°F (5.3°C) and an average high of 58.1°F (14.5°C). In Pierson, the average high-temperature in April increases from a frosty 46.2°F (7.9°C) in March to a mild 58.1°F (14.5°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Pierson, Iowa, with an average temperature ranging between min 52.5°F (11.4°C) and max 69.6°F (20.9°C). With the onset of May, Pierson's weather sees a temperature rise, transitioning from a mild 58.1°F (14.5°C) in April to a pleasant 69.6°F (20.9°C). Weather in May »Weather in June
June, the first month of the summer in Pierson, is a moderately hot month, with an average temperature ranging between max 79.7°F (26.5°C) and min 62.6°F (17°C). As June sets, the average high-temperature shows an increase, moving up from a pleasant 69.6°F (20.9°C) in May to a warm 79.7°F (26.5°C). Weather in June »Weather in July
July, like June, in Pierson, Iowa, is a moderately hot summer month, with an average temperature fluctuating between 82.9°F (28.3°C) and 64.9°F (18.3°C). In Pierson, the highest average temperatures are observed in July, with a high of 82.9°F (28.3°C) and a low of 64.9°F (18.3°C). July's average heat index is computed to be a hot 89.6°F (32°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Pierson, Iowa, with an average temperature varying between 61.7°F (16.5°C) and 80.6°F (27°C). The transition into August shows a subtle variation to a still moderately hot 80.6°F (27°C) from July's 82.9°F (28.3°C) in the average high-temperature. Weather in August »Weather in September
September, the first month of the autumn in Pierson, is still a warm month, with temperature in the range of an average low of 55.6°F (13.1°C) and an average high of 75°F (23.9°C). A subtle shift in Pierson's weather is observed as August turns into September, with the average high temperature reducing from a moderately hot 80.6°F (27°C) to a still warm 75°F (23.9°C). Weather in September »Weather in October
October, the same as September, in Pierson, Iowa, is another refreshing autumn month, with an average temperature varying between 59.4°F (15.2°C) and 43.7°F (6.5°C). The arrival of October is marked by a notable decrease in high-temperatures, falling from a warm 75°F (23.9°C) in September to a refreshing 59.4°F (15.2°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Pierson, Iowa, with an average temperature varying between 45.5°F (7.5°C) and 31.5°F (-0.3°C). As October transitions into November, Pierson sees a drop in the average high-temperature, transitioning from a moderate 59.4°F (15.2°C) to a chilly 45.5°F (7.5°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Pierson, Iowa, with an average temperature fluctuating between 19.2°F (-7.1°C) and 30.6°F (-0.8°C). A notable decrease in the average high-temperature is observed during December, falling from a frosty 45.5°F (7.5°C) in November to a freezing cold 30.6°F (-0.8°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Pierson, IA
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (26.2°F).
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure
Pierson, IA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.15"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.86"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.08"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 (29.86"Hg).
Average wind speed
Pierson, IA
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.5mph - Average wind speed in March:
10.7mph - Average wind speed in April:
11.1mph - Average wind speed in May:
9.5mph - Average wind speed in June:
8.7mph
- Average wind speed in July:
7.6mph - Average wind speed in August:
7.8mph - Average wind speed in September:
8.9mph - Average wind speed in October:
10.1mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.2mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity
Pierson, IA
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (66%).
Average rainfall
Pierson, IA
- Average rainfall in January:
0.39" - Average rainfall in February:
0.47" - Average rainfall in March:
0.98" - Average rainfall in April:
1.5" - Average rainfall in May:
2.36" - Average rainfall in June:
2.48"
- Average rainfall in July:
1.61" - Average rainfall in August:
1.81" - Average rainfall in September:
1.46" - Average rainfall in October:
1.42" - Average rainfall in November:
0.55" - Average rainfall in December:
0.79"
The wettest month (with the highest rainfall) is June (2.48").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days
Pierson, IA
- Average rainfall days in January:
2.3 days - Average rainfall days in February:
2.4 days - Average rainfall days in March:
7.9 days - Average rainfall days in April:
12.3 days - Average rainfall days in May:
15.1 days - Average rainfall days in June:
14.9 days
- Average rainfall days in July:
10.8 days - Average rainfall days in August:
12.7 days - Average rainfall days in September:
10.6 days - Average rainfall days in October:
8.6 days - Average rainfall days in November:
5.3 days - Average rainfall days in December:
2.5 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (2.3 days).
Average snowfall
Pierson, IA
The month with the highest snowfall is March (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Pierson, IA
- Average snowfall days in January:
8.9 days - Average snowfall days in February:
7.6 days - Average snowfall days in March:
5 days - Average snowfall days in April:
0.9 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:
1.1 days - Average snowfall days in November:
2.3 days - Average snowfall days in December:
6.2 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Pierson, IA
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 18min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
4h and 12min - Average sunshine in February:
5h and 6min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 48min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
10h and 42min - Average sunshine in August:
9h and 42min - Average sunshine in September:
8h and 54min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 48min - Average sunshine in December:
4h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days
Pierson, IA
- Average sunshine days in January:
21.7 days - Average sunshine days in February:
18.8 days - Average sunshine days in March:
18.1 days - Average sunshine days in April:
15.6 days - Average sunshine days in May:
14 days - Average sunshine days in June:
13.1 days
- Average sunshine days in July:
16.6 days - Average sunshine days in August:
16.5 days - Average sunshine days in September:
17.5 days - Average sunshine days in October:
20.2 days - Average sunshine days in November:
22.8 days - Average sunshine days in December:
23.4 days
The month with the most sunshine days is December (23.4 days).
The month with the least sunshine days is June (13.1 days).
Average UV index
Pierson, 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
Pierson, IA
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility
Pierson, 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).





