Climate and monthly weather forecastRunnells, IA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Runnells, Iowa, is another subzero cold winter month, with an average temperature varying between 28.4°F (-2°C) and 14.9°F (-9.5°C). With an average high-temperature of 28.4°F (-2°C) and an average low-temperature of 14.9°F (-9.5°C), January is the coldest month. Weather in January »Weather in February
The last month of the winter, February, is an icy month in Runnells, Iowa, with an average temperature ranging between min 18°F (-7.8°C) and max 32.5°F (0.3°C). The transition into February reveals an average high-temperature of a cold 32.5°F (0.3°C), mirroring a close resemblance to January. Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Runnells, Iowa, with temperature in the range of an average low of 32.7°F (0.4°C) and an average high of 47.7°F (8.7°C). As Runnells welcomes March, there is a noticeable shift in the average high-temperature, escalating from February's wintry 32.5°F (0.3°C) to a frosty 47.7°F (8.7°C). Weather in March »Weather in April
April in Runnells, Iowa, is a moderate spring month, with an average temperature varying between 42.4°F (5.8°C) and 59.9°F (15.5°C). In Runnells, the average high-temperature in April rises, from a frosty 47.7°F (8.7°C) in March, to a moderate 59.9°F (15.5°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Runnells, Iowa, with an average temperature ranging between min 52.9°F (11.6°C) and max 70.2°F (21.2°C). A rise in the average high-temperature is observed during May, moving from a mild 59.9°F (15.5°C) in April to a pleasant 70.2°F (21.2°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Runnells, Iowa, with an average temperature varying between 62.6°F (17°C) and 79.7°F (26.5°C). In June, the average high-temperature increases from an agreeable 70.2°F (21.2°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 Runnells, Iowa, with an average temperature ranging between max 83.1°F (28.4°C) and min 65.1°F (18.4°C). July, on average, is the warmest month, registering a high temperature of 83.1°F (28.4°C) and a low of 65.1°F (18.4°C). For July, the heat index is calculated to be a tropical 91.4°F (33°C). Weather in July »Weather in August
August, the last month of the summer in Runnells, is another warm month, with an average temperature varying between 62.2°F (16.8°C) and 81.5°F (27.5°C). Transitioning into August, Runnells experiences an average high-temperature of a still moderately hot 81.5°F (27.5°C), marking a minor shift from the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Runnells, is still a warm month, with an average temperature varying between 76.1°F (24.5°C) and 55.9°F (13.3°C). Runnells's transition into September involves a gentle shift in temperature, receding from 81.5°F (27.5°C) in August to a still warm 76.1°F (24.5°C). Weather in September »Weather in October
October, like September, in Runnells, Iowa, is another comfortable autumn month, with an average temperature fluctuating between 60.8°F (16°C) and 44.6°F (7°C). Witnessing a clear downswing, the average high-temperature during October drops from September's moderately hot 76.1°F (24.5°C) to a refreshing 60.8°F (16°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Runnells, Iowa, with an average temperature ranging between max 47.3°F (8.5°C) and min 32.9°F (0.5°C). November brings a decrease in the average high-temperature, shifting from a refreshing 60.8°F (16°C) in October to a frosty 47.3°F (8.5°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Runnells, Iowa, with an average temperature fluctuating between 22.8°F (-5.1°C) and 34.7°F (1.5°C). The onset of December results in a decrease in the average high-temperature, receding from a frosty 47.3°F (8.5°C) in November to an icy 34.7°F (1.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Runnells, 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 (28.4°F).
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure
Runnells, IA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.14"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:
30.09"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
Runnells, IA
- Average wind speed in January:
10.2mph - Average wind speed in February:
10.1mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.3mph - Average wind speed in May:
8.8mph - Average wind speed in June:
8mph
- Average wind speed in July:
7mph - Average wind speed in August:
6.9mph - Average wind speed in September:
7.9mph - Average wind speed in October:
9.4mph - Average wind speed in November:
10.1mph - Average wind speed in December:
9.8mph
The windiest months (with the highest average wind speed) are March and April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity
Runnells, IA
The months with the highest relative humidity are January, February and June (82%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Runnells, IA
- Average rainfall in January:
0.91" - Average rainfall in February:
1.06" - Average rainfall in March:
1.85" - Average rainfall in April:
2.8" - Average rainfall in May:
4.45" - Average rainfall in June:
3.7"
- Average rainfall in July:
2.13" - Average rainfall in August:
2.36" - Average rainfall in September:
2.6" - Average rainfall in October:
2.01" - Average rainfall in November:
1.46" - Average rainfall in December:
1.02"
The wettest month (with the highest rainfall) is May (4.45").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days
Runnells, IA
- Average rainfall days in January:
4.2 days - Average rainfall days in February:
4 days - Average rainfall days in March:
10.4 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
16.5 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
13.5 days - Average rainfall days in August:
11.5 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
10 days - Average rainfall days in November:
7.1 days - Average rainfall days in December:
5.4 days
The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (4 days).
Average snowfall
Runnells, IA
- Average snowfall in January:
4.37" - Average snowfall in February:
4.21" - Average snowfall in March:
1.3" - Average snowfall in April:
0.59" - Average snowfall in May:
0.28" - Average snowfall in June:
0"
The month with the highest snowfall is January (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Runnells, IA
- Average snowfall days in January:
10.8 days - Average snowfall days in February:
8.6 days - Average snowfall days in March:
4 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:
2.8 days - Average snowfall days in December:
7 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Runnells, IA
- Average daylight in January:
9h and 36min - 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 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - 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 12min
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:
4h and 6min - Average sunshine in February:
4h and 36min - Average sunshine in March:
5h and 54min - Average sunshine in April:
7h and 42min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
9h and 42min - Average sunshine in September:
9h and 6min - Average sunshine in October:
5h and 30min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Runnells, IA
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
15.8 days - Average sunshine days in March:
16.3 days - Average sunshine days in April:
13.4 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
11.7 days
- Average sunshine days in July:
14.8 days - Average sunshine days in August:
18.2 days - Average sunshine days in September:
17.1 days - Average sunshine days in October:
18.4 days - Average sunshine days in November:
18.7 days - Average sunshine days in December:
18.5 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (11.7 days).
Average UV index
Runnells, IA
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Runnells, IA
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July, August and September (Cloud cover 31).
Average visibility
Runnells, IA
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).





