Climate and monthly weather forecastRed Line, IA
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Red Line, Iowa, with temperature in the range of an average low of 14.5°F (-9.7°C) and an average high of 27.3°F (-2.6°C). Red Line, Iowa, reaches its lowest average temperatures in January, measuring 27.3°F (-2.6°C) at the peak and 14.5°F (-9.7°C) at the lowest. Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Red Line, Iowa, with an average temperature ranging between min 18°F (-7.8°C) and max 31.5°F (-0.3°C). An average high-temperature of a still subzero cold 31.5°F (-0.3°C) marks February, exhibiting a close resemblance to the conditions in January. Weather in February »Weather in March
March, the first month of the spring in Red Line, is a frosty month, with an average temperature fluctuating between 46.9°F (8.3°C) and 31.8°F (-0.1°C). Red Line's weather undergoes a significant change with the arrival of March, as the average high-temperature moves from a freezing cold 31.5°F (-0.3°C) in February to a chilly 46.9°F (8.3°C). Weather in March »Weather in April
April is a mild spring month in Red Line, Iowa, with an average temperature varying between 42.3°F (5.7°C) and 58.8°F (14.9°C). The transition to April introduces an increase in the average high-temperature, shifting from a chilly 46.9°F (8.3°C) in March to a mild 58.8°F (14.9°C). Weather in April »Weather in May
May, the last month of the spring in Red Line, is an agreeable month, with an average temperature ranging between min 52.9°F (11.6°C) and max 69.4°F (20.8°C). With the arrival of May, the average high-temperature transitions from a moderate 58.8°F (14.9°C) in April to a pleasant 69.4°F (20.8°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Red Line, Iowa, with an average temperature fluctuating between 63°F (17.2°C) and 79.3°F (26.3°C). The shift into June is accompanied by a temperature increase, with the average high-temperature rising from a pleasant 69.4°F (20.8°C) in May to a warm 79.3°F (26.3°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Red Line, Iowa, with an average temperature fluctuating between 64.9°F (18.3°C) and 82.6°F (28.1°C). July is the month that records the highest temperatures, with averages ranging from a high of 82.6°F (28.1°C) to a low of 64.9°F (18.3°C). The heat index value for July is calculated 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 Red Line, Iowa, with an average temperature varying between 62.1°F (16.7°C) and 80.2°F (26.8°C). Red Line experiences a subtle adjustment in high-temperatures to a still warm 80.2°F (26.8°C) with the onset of August, maintaining near parity with July's 82.6°F (28.1°C). Weather in August »Weather in September
September, the first month of the autumn in Red Line, is still a warm month, with an average temperature ranging between min 55.9°F (13.3°C) and max 75°F (23.9°C). In the transition from August to September, Red Line reports an average high-temperature of a still moderately hot 75°F (23.9°C), indicating a close resemblance to the prior month. Weather in September »Weather in October
October, like September, is another refreshing autumn month in Red Line, Iowa, with temperature in the range of an average low of 44.1°F (6.7°C) and an average high of 59.7°F (15.4°C). The changeover to October signals a significant decrease in the average high-temperature, dropping from a warm 75°F (23.9°C) in September to a mild 59.7°F (15.4°C). Weather in October »Weather in November
November, the last month of the autumn in Red Line, is also a frosty month, with an average temperature ranging between min 32.2°F (0.1°C) and max 46.2°F (7.9°C). November's onset corresponds with a shift in the average high-temperature, moving from a moderate 59.7°F (15.4°C) in October to a chilly 46.2°F (7.9°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Red Line, Iowa, with an average temperature fluctuating between 32.2°F (0.1°C) and 20.8°F (-6.2°C). December implies a gentle temperature shift, with average high-temperatures reducing from November's chilly 46.2°F (7.9°C) to a cold 32.2°F (0.1°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
The coldest period in Red Line tends to be January, when average temperatures fluctuate between a high of 27.3°F (-2.6°C) and a low of 14.5°F (-9.7°C).
January is the most humid month, with an average relative humidity of 83%.
January is the month with the least rainfall in Red Line, Iowa. Rain falls for 3.2 days and accumulates 0.43" (11mm) of precipitation.
Throughout the year, in Red Line, Iowa, there are 113.5 rainfall days, and 15.71" (399mm) of precipitation is accumulated.
January through May, October through December are months with snowfall in Red Line, Iowa.
In Red Line, during the entire year, snow falls for 31.5 days and aggregates up to 7.13" (181mm) of snow.
With an average of 4.5h of sunshine, January has the least sunshine of the year.
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index.
The month with the most snowfall is February, when snow falls for 7.3 days and typically aggregates up to 2.09" (53mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Red Line, 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.
June is the month with the most rainfall. Rain falls for 16.1 days and accumulates 2.64" (67mm) of precipitation.
In Red Line, snow does not fall in June through September.
The month with the longest days in Red Line, Iowa, is June, with an average of 15h and 12min of daylight.
June through August, with an average maximum UV index of 6, are months with the highest UV index.
Red Line's warmest temperatures are experienced in July, with average high temperatures of 82.6°F (28.1°C) and lows of 64.9°F (18.3°C).
The month with the most sunshine in Red Line, Iowa, is July, with an average of 10.4h of sunshine.
With an average relative humidity of 68%, October is the least humid month.
December has the shortest days of the year in Red Line, with an average of 9h and 12min of daylight.
Average temperature
Red Line, IA
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (27.3°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 (14.5°F).
Average pressure
Red Line, IA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30"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 (29.87"Hg).
Average wind speed
Red Line, IA
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.7mph - Average wind speed in April:
10.9mph - Average wind speed in May:
9.3mph - Average wind speed in June:
8.5mph
- Average wind speed in July:
7.2mph - Average wind speed in August:
7.4mph - Average wind speed in September:
8.5mph - Average wind speed in October:
9.7mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity
Red Line, IA
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (68%).
Average rainfall
Red Line, IA
- Average rainfall in January:
0.43" - Average rainfall in February:
0.47" - Average rainfall in March:
0.91" - Average rainfall in April:
1.26" - Average rainfall in May:
2.6" - Average rainfall in June:
2.64"
- Average rainfall in July:
1.5" - Average rainfall in August:
1.93" - Average rainfall in September:
1.65" - Average rainfall in October:
1.06" - Average rainfall in November:
0.55" - Average rainfall in December:
0.71"
The wettest month (with the highest rainfall) is June (2.64").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days
Red Line, IA
- Average rainfall days in January:
3.2 days - Average rainfall days in February:
2.8 days - Average rainfall days in March:
8.8 days - Average rainfall days in April:
12.8 days - Average rainfall days in May:
15.7 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
13.1 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
10.5 days - Average rainfall days in October:
8.5 days - Average rainfall days in November:
5.5 days - Average rainfall days in December:
4.2 days
The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is February (2.8 days).
Average snowfall
Red Line, IA
- Average snowfall in January:
1.57" - Average snowfall in February:
2.09" - Average snowfall in March:
1.22" - Average snowfall in April:
0.28" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Red Line, IA
- Average snowfall days in January:
8.3 days - Average snowfall days in February:
7.3 days - Average snowfall days in March:
4.8 days - Average snowfall days in April:
1 days - Average snowfall days in May:
0.3 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:
0.7 days - Average snowfall days in November:
3 days - Average snowfall days in December:
6.1 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Red Line, 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 36min - Average daylight in June:
15h and 12min
- 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 48min - Average daylight in December:
9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
4h and 30min - Average sunshine in February:
5h and 12min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 12min - Average sunshine in May:
8h and 48min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
9h and 48min - Average sunshine in September:
9h and 6min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 48min - 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 30min).
Average sunshine days
Red Line, IA
- Average sunshine days in January:
20.1 days - Average sunshine days in February:
17.8 days - Average sunshine days in March:
17.9 days - Average sunshine days in April:
15 days - Average sunshine days in May:
12.8 days - Average sunshine days in June:
11.4 days
- Average sunshine days in July:
12.7 days - Average sunshine days in August:
15.5 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
21.3 days - Average sunshine days in December:
21.6 days
The month with the most sunshine days is December (21.6 days).
The month with the least sunshine days is June (11.4 days).
Average UV index
Red Line, IA
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover
Red Line, IA
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility
Red Line, 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).
