Climate and monthly weather forecastWest Union, IA
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in West Union, Iowa, with an average temperature fluctuating between 22.8°F (-5.1°C) and 10.6°F (-11.9°C). West Union's coldest temperatures are experienced in January, with average high temperatures of 22.8°F (-5.1°C) and lows of 10.6°F (-11.9°C). Weather in January »Weather in February
February, the last month of the winter in West Union, is also a subzero cold month, with an average temperature varying between 13.6°F (-10.2°C) and 26.1°F (-3.3°C). The advent of February reveals an average high-temperature of a still freezing cold 26.1°F (-3.3°C), showing minimal difference from the prior month. Weather in February »Weather in March
The first month of the spring, March, is a wintry month in West Union, Iowa, with an average temperature ranging between min 27.3°F (-2.6°C) and max 41.9°F (5.5°C). With the onset of March, West Union's average high-temperature experiences a noticeable rise, advancing from February's subzero cold 26.1°F (-3.3°C) to a wintry 41.9°F (5.5°C). Weather in March »Weather in April
April in West Union, Iowa, is a fresh spring month, with an average temperature fluctuating between 54.5°F (12.5°C) and 37.9°F (3.3°C). A rise in the average high-temperature is observed during April, moving from an icy 41.9°F (5.5°C) in March to a fresh 54.5°F (12.5°C). Weather in April »Weather in May
May, the last month of the spring in West Union, is an enjoyable month, with an average temperature varying between 66.6°F (19.2°C) and 49.8°F (9.9°C). With the transition into May, West Union experiences an increase in average high-temperatures, moving up from a cool 54.5°F (12.5°C) in April to a refreshing 66.6°F (19.2°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in West Union, Iowa, with an average temperature ranging between max 75.6°F (24.2°C) and min 59.5°F (15.3°C). June brings a temperature change, with average high-temperatures moving from May's comfortable 66.6°F (19.2°C) to a moderately hot 75.6°F (24.2°C). Weather in June »Weather in July
July, like June, in West Union, Iowa, is a moderately hot summer month, with temperature in the range of an average low of 62.4°F (16.9°C) and an average high of 79°F (26.1°C). July is the warmest month, with an average high-temperature of 79°F (26.1°C) and an average low-temperature of 62.4°F (16.9°C). Weather in July »Weather in August
August, the last month of the summer in West Union, is another warm month, with an average temperature fluctuating between 59.5°F (15.3°C) and 77.5°F (25.3°C). The advent of August presents an average high-temperature of a still moderately hot 77.5°F (25.3°C), maintaining a close correlation with the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in West Union, Iowa, with temperature in the range of an average low of 52.9°F (11.6°C) and an average high of 71.4°F (21.9°C). The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's warm 77.5°F (25.3°C) to an agreeable 71.4°F (21.9°C). Weather in September »Weather in October
October, like September, is another mild autumn month in West Union, Iowa, with an average temperature varying between 41.5°F (5.3°C) and 57.2°F (14°C). West Union's October weather features a mild decline in high-temperatures, reducing from an agreeable 71.4°F (21.9°C) in September to a mild 57.2°F (14°C). Weather in October »Weather in November
The last month of the autumn, November, is also a wintry month in West Union, Iowa, with an average temperature fluctuating between 42.6°F (5.9°C) and 29.7°F (-1.3°C). A decrease in the average high-temperature marks November, falling from October's refreshing 57.2°F (14°C) to a wintry 42.6°F (5.9°C). Weather in November »Weather in December
December, the first month of the winter in West Union, is also a subzero cold month, with an average temperature fluctuating between 29.5°F (-1.4°C) and 18.9°F (-7.3°C). December's arrival coincides with a drop in the average high-temperature, decreasing from November's icy 42.6°F (5.9°C) to a subzero cold 29.5°F (-1.4°C). Weather in December »Updated: Aug 26, 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
January, known for its average high temperature of 22.8°F (-5.1°C) and an average low temperature of 10.6°F (-11.9°C), is the coldest month.
January is the most humid month, with an average relative humidity of 89%.
The month with the least rainfall is January, when the rain falls for 4.5 days and typically collects 1.18" (30mm) of precipitation.
Throughout the year, there are 146.5 rainfall days, and 31.3" (795mm) of precipitation is accumulated.
Months with snowfall are January through May, October through December.
In West Union, during the entire year, snow falls for 59.9 days and aggregates up to 24.84" (631mm) of snow.
The month with the least sunshine is January, with an average of 3.5h of sunshine.
January and December, with an average maximum UV index of 1, are months with the lowest UV index.
The month with the most snowfall is February, when snow falls for 13 days and typically aggregates up to 6.5" (165mm) 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 are April and October, with an average relative humidity of 75%.
The months with the highest UV index are May through August, with an average maximum UV index of 5.
June is the month with the most rainfall. Rain falls for 19.8 days and accumulates 5.08" (129mm) of precipitation.
June through September are months without snowfall.
The month with the longest days is June, with an average of 15h and 18min of daylight.
West Union's July weather, marked by an average high temperature of 79°F (26.1°C) and an average low temperature of 62.4°F (16.9°C), is the warmest in the year.
August has the most sunshine of the year, with an average of 9.8h of sunshine.
The month with the shortest days is December, with an average of 9h and 6min of daylight.
Average temperature
West Union, IA
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (22.8°F).
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure
West Union, IA
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed
West Union, IA
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.7mph - Average wind speed in May:
9.3mph - Average wind speed in June:
8.1mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
7.1mph - Average wind speed in September:
8.2mph - Average wind speed in October:
9.7mph - Average wind speed in November:
10.3mph - Average wind speed in December:
10mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity
West Union, IA
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall
West Union, IA
- Average rainfall in January:
1.18" - Average rainfall in February:
1.34" - Average rainfall in March:
1.93" - Average rainfall in April:
3.5" - Average rainfall in May:
4.37" - Average rainfall in June:
5.08"
- Average rainfall in July:
3.19" - Average rainfall in August:
2.28" - Average rainfall in September:
2.44" - Average rainfall in October:
2.72" - Average rainfall in November:
1.57" - Average rainfall in December:
1.69"
The wettest month (with the highest rainfall) is June (5.08").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days
West Union, IA
- Average rainfall days in January:
4.5 days - Average rainfall days in February:
4.3 days - Average rainfall days in March:
11.2 days - Average rainfall days in April:
16.1 days - Average rainfall days in May:
19.8 days - Average rainfall days in June:
19.8 days
- Average rainfall days in July:
17.8 days - Average rainfall days in August:
14.1 days - Average rainfall days in September:
12.1 days - Average rainfall days in October:
12.2 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
5.8 days
The months with the highest number of rainy days are May and June (19.8 days).
The month with the least rainy days is February (4.3 days).
Average snowfall
West Union, IA
The month with the highest snowfall is February (6.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
West Union, IA
- Average snowfall days in January:
14.5 days - Average snowfall days in February:
13 days - Average snowfall days in March:
8.5 days - Average snowfall days in April:
3.3 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:
1.5 days - Average snowfall days in November:
5.7 days - Average snowfall days in December:
13.1 days
The month with the highest number of snowfall days is January (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
West Union, IA
- Average daylight in January:
9h and 24min - 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 42min - 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:
3h and 30min - Average sunshine in February:
3h and 42min - Average sunshine in March:
5h and 48min - Average sunshine in April:
7h and 18min - Average sunshine in May:
8h and 6min - Average sunshine in June:
9h and 12min
- Average sunshine in July:
9h and 42min - Average sunshine in August:
9h and 48min - Average sunshine in September:
8h and 54min - Average sunshine in October:
5h and 18min - Average sunshine in November:
5h and 0min - Average sunshine in December:
4h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days
West Union, IA
- Average sunshine days in January:
13.6 days - Average sunshine days in February:
12.4 days - Average sunshine days in March:
12.5 days - Average sunshine days in April:
9.9 days - Average sunshine days in May:
9 days - Average sunshine days in June:
7.9 days
- Average sunshine days in July:
8.8 days - Average sunshine days in August:
13.7 days - Average sunshine days in September:
15.4 days - Average sunshine days in October:
16 days - Average sunshine days in November:
16.2 days - Average sunshine days in December:
14.2 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (7.9 days).
Average UV index
West Union, IA
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
West Union, IA
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
West Union, IA
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).
