Climate and monthly weather forecastOnawa Junction, IA
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Onawa Junction, Iowa, with an average temperature ranging between min 12°F (-11.1°C) and max 24.4°F (-4.2°C). January brings the lowest temperatures, with an average high of 24.4°F (-4.2°C) and an average low of 12°F (-11.1°C). Weather in January »Weather in February
February, the last month of the winter in Onawa Junction, is another freezing cold month, with an average temperature varying between 15.3°F (-9.3°C) and 28.2°F (-2.1°C). February's arrival brings an average high-temperature of a still subzero cold 28.2°F (-2.1°C), slightly deviating from January's 24.4°F (-4.2°C). Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Onawa Junction, Iowa, with an average temperature ranging between min 29.7°F (-1.3°C) and max 44.2°F (6.8°C). The shift into March is characterized by a noticeable escalation in the average high-temperature, rising from February's freezing cold 28.2°F (-2.1°C) to a chilly 44.2°F (6.8°C). Weather in March »Weather in April
April is a refreshing spring month in Onawa Junction, Iowa, with temperature in the range of an average high of 56.8°F (13.8°C) and an average low of 40.3°F (4.6°C). The beginning of April marks a shift in the average high-temperature, moving from March's frosty 44.2°F (6.8°C) to a refreshing 56.8°F (13.8°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Onawa Junction, Iowa, with temperature in the range of an average low of 52.2°F (11.2°C) and an average high of 68.5°F (20.3°C). May brings an increase in the average high-temperature, progressing from a refreshing 56.8°F (13.8°C) in April to a pleasant 68.5°F (20.3°C). Weather in May »Weather in June
June, the first month of the summer in Onawa Junction, is a moderately hot month, with an average temperature varying between 77.9°F (25.5°C) and 62.1°F (16.7°C). June brings an increase in the average high-temperature, progressing from a pleasant 68.5°F (20.3°C) in May to a moderately hot 77.9°F (25.5°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Onawa Junction, Iowa, with an average temperature ranging between min 64°F (17.8°C) and max 81.5°F (27.5°C). July is the month that records the highest temperatures, with averages ranging from a high of 81.5°F (27.5°C) to a low of 64°F (17.8°C). The heat index in July is computed to be a hot 87.8°F (31°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Onawa Junction, Iowa, with an average temperature ranging between max 79.3°F (26.3°C) and min 60.8°F (16°C). August commences with an average high-temperature of a still moderately hot 79.3°F (26.3°C), showing little deviation from July's 81.5°F (27.5°C). Weather in August »Weather in September
September, the first month of the autumn in Onawa Junction, is still a warm month, with temperature in the range of an average low of 55°F (12.8°C) and an average high of 73.8°F (23.2°C). September signifies a gentle decline in Onawa Junction's average high-temperature, easing from a warm 79.3°F (26.3°C) in August to a still moderately hot 73.8°F (23.2°C). Weather in September »Weather in October
October, like September, is another mild autumn month in Onawa Junction, Iowa, with an average temperature ranging between min 43°F (6.1°C) and max 57.9°F (14.4°C). Onawa Junction witnesses a significant decrease in the average high-temperature with the arrival of October, falling from September's warm 73.8°F (23.2°C) to a moderate 57.9°F (14.4°C). Weather in October »Weather in November
November, the last month of the autumn in Onawa Junction, is also a frosty month, with temperature in the range of an average low of 31.3°F (-0.4°C) and an average high of 44.1°F (6.7°C). A subtle decrease in the average high-temperature marks November, falling from October's refreshing 57.9°F (14.4°C) to a chilly 44.1°F (6.7°C). Weather in November »Weather in December
December, the first month of the winter in Onawa Junction, is still a freezing cold month, with an average temperature fluctuating between 19°F (-7.2°C) and 29.1°F (-1.6°C). Onawa Junction's transition into December marks a considerable drop in the average high-temperature, moving down from a frosty 44.1°F (6.7°C) in November to a freezing cold 29.1°F (-1.6°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
Onawa Junction, Iowa, notes the coldest temperatures in January, with a average high of 24.4°F (-4.2°C) and a low of 12°F (-11.1°C).
The most humid month is January, with an average relative humidity of 86%.
The month with the least rainfall is January, when the rain falls for 3.6 days and typically collects 0.55" (14mm) of precipitation.
In Onawa Junction, during the entire year, the rain falls for 117 days and collects up to 19.84" (504mm) of precipitation.
January through May, October through December are months with snowfall in Onawa Junction, Iowa.
Throughout the year, there are 36.4 snowfall days, and 10.67" (271mm) of snow is accumulated.
The month with the least sunshine in Onawa Junction is January, with an average of 4.1h of sunshine.
With an average maximum UV index of 1, January is the month with the lowest UV index in Onawa Junction.
February is the month with the most snowfall. Snow falls for 8.3 days and accumulates 3.19" (81mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.
The months with the lowest humidity in Onawa Junction, Iowa, are April and October, with an average relative humidity of 68%.
June is the month with the most rainfall in Onawa Junction. Rain falls for 17.3 days and accumulates 3.15" (80mm) of precipitation.
June through September are months without snowfall.
With an average of 15h and 18min of daylight, June has the longest days of the year.
June and July, with an average maximum UV index of 6, are months with the highest UV index.
July, having an average high-temperature of 81.5°F (27.5°C) and an average low-temperature of 64°F (17.8°C), is the warmest month in Onawa Junction, Iowa.
With an average of 10.5h of sunshine, July has the most sunshine of the year in Onawa Junction, Iowa.
December has the shortest days of the year in Onawa Junction, with an average of 9h and 6min of daylight.
Average temperature
Onawa Junction, IA
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (24.4°F).
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure
Onawa Junction, IA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.15"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.07"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
Onawa Junction, IA
- Average wind speed in January:
10.8mph - Average wind speed in February:
10.7mph - Average wind speed in March:
10.8mph - Average wind speed in April:
11.2mph - Average wind speed in May:
9.7mph - 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:
9mph - Average wind speed in October:
10.1mph - Average wind speed in November:
10.6mph - Average wind speed in December:
10.4mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity
Onawa Junction, IA
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April and October (68%).
Average rainfall
Onawa Junction, IA
- Average rainfall in January:
0.55" - Average rainfall in February:
0.67" - Average rainfall in March:
1.18" - Average rainfall in April:
2.09" - Average rainfall in May:
2.68" - Average rainfall in June:
3.15"
- Average rainfall in July:
2.01" - Average rainfall in August:
2.36" - Average rainfall in September:
1.77" - Average rainfall in October:
1.77" - Average rainfall in November:
0.67" - Average rainfall in December:
0.94"
The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days
Onawa Junction, IA
- Average rainfall days in January:
3.6 days - Average rainfall days in February:
2.6 days - Average rainfall days in March:
9.6 days - Average rainfall days in April:
13.4 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
17.3 days
- Average rainfall days in July:
13.2 days - Average rainfall days in August:
13.1 days - Average rainfall days in September:
10.6 days - Average rainfall days in October:
9 days - Average rainfall days in November:
5.1 days - Average rainfall days in December:
4.2 days
The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (2.6 days).
Average snowfall
Onawa Junction, IA
- Average snowfall in January:
2.24" - Average snowfall in February:
3.19" - Average snowfall in March:
1.46" - Average snowfall in April:
0.67" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (3.19").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Onawa Junction, IA
- Average snowfall days in January:
9.1 days - Average snowfall days in February:
8.3 days - Average snowfall days in March:
5.3 days - Average snowfall days in April:
1.6 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:
1.1 days - Average snowfall days in November:
2.7 days - Average snowfall days in December:
8 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Onawa Junction, 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 42min - Average daylight in June:
15h and 18min
- Average daylight in July:
15h and 0min - 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 6min - Average sunshine in February:
4h and 54min - Average sunshine in March:
6h and 12min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 48min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
9h and 36min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Onawa Junction, IA
- Average sunshine days in January:
19.7 days - Average sunshine days in February:
17.9 days - Average sunshine days in March:
16.6 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
13.4 days - Average sunshine days in June:
11.1 days
- Average sunshine days in July:
14.3 days - Average sunshine days in August:
15.8 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
21.1 days - Average sunshine days in December:
20.4 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (11.1 days).
Average UV index
Onawa Junction, 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
Onawa Junction, IA
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility
Onawa Junction, 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).
