Climate and monthly weather forecastHalfa, IA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Halfa, Iowa, is a freezing cold winter month, with an average temperature varying between 9.9°F (-12.3°C) and 22.5°F (-5.3°C). January is the month that records the lowest temperatures, with averages ranging from a high of 22.5°F (-5.3°C) to a low of 9.9°F (-12.3°C). Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Halfa, Iowa, with temperature in the range of an average high of 26.2°F (-3.2°C) and an average low of 12.9°F (-10.6°C). Stepping into February, Halfa records an average high-temperature of a still subzero cold 26.2°F (-3.2°C), almost consistent with January. Weather in February »Weather in March
March, the first month of the spring in Halfa, is an icy month, with an average temperature ranging between max 41.7°F (5.4°C) and min 27.7°F (-2.4°C). March's onset is marked by a clear temperature increase, soaring from a subzero cold 26.2°F (-3.2°C) in February to a cold 41.7°F (5.4°C). Weather in March »Weather in April
April in Halfa, Iowa, is a fresh spring month, with an average temperature ranging between min 39.7°F (4.3°C) and max 55°F (12.8°C). The arrival of April sees a shift in the average high-temperature, moving from an icy 41.7°F (5.4°C) in March to a cool 55°F (12.8°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Halfa, Iowa, with an average temperature ranging between max 68°F (20°C) and min 51.4°F (10.8°C). Halfa sees a rise in temperature during May, with average high-temperatures transitioning from a fresh 55°F (12.8°C) in April to a pleasant 68°F (20°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Halfa, Iowa, with temperature in the range of an average high of 77.2°F (25.1°C) and an average low of 61°F (16.1°C). As Halfa welcomes June, the average high-temperature sees a rise, transitioning from an agreeable 68°F (20°C) in May to a moderately hot 77.2°F (25.1°C). Weather in June »Weather in July
July, like June, in Halfa, Iowa, is a moderately hot summer month, with an average temperature ranging between min 62.6°F (17°C) and max 80.2°F (26.8°C). July, on average, is the warmest month, registering a high temperature of 80.2°F (26.8°C) and a low of 62.6°F (17°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Halfa, Iowa, with an average temperature varying between 59.5°F (15.3°C) and 78.1°F (25.6°C). The transition from July to August brings an average high-temperature of a still moderately hot 78.1°F (25.6°C), barely different from July's 80.2°F (26.8°C). Weather in August »Weather in September
September, the first month of the autumn in Halfa, is still a pleasant month, with an average temperature fluctuating between 53.8°F (12.1°C) and 72.7°F (22.6°C). The start of September involves a subtle temperature drop, shifting from a moderately hot 78.1°F (25.6°C) in August to an agreeable 72.7°F (22.6°C). Weather in September »Weather in October
October, like September, is another mild autumn month in Halfa, Iowa, with an average temperature ranging between max 57°F (13.9°C) and min 42.3°F (5.7°C). With the onset of October, Halfa's average high-temperature experiences a noticeable drop, receding from September's agreeable 72.7°F (22.6°C) to a mild 57°F (13.9°C). Weather in October »Weather in November
November, the last month of the autumn in Halfa, is another cold month, with an average temperature fluctuating between 29.7°F (-1.3°C) and 42.4°F (5.8°C). November's onset is marked by a clear temperature decrease, falling from a moderate 57°F (13.9°C) in October to a wintry 42.4°F (5.8°C). Weather in November »Weather in December
December, the first month of the winter in Halfa, is still a freezing cold month, with an average temperature fluctuating between 16.5°F (-8.6°C) and 27.3°F (-2.6°C). The start of December is characterized by a significant decrease in the average high-temperature, moving from a cold 42.4°F (5.8°C) in November to a subzero cold 27.3°F (-2.6°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
In Halfa, January registers the lowest temperatures, averaging 22.5°F (-5.3°C) at the peak and 9.9°F (-12.3°C) at the lowest.
The most humid month in Halfa is January, with an average relative humidity of 88%.
The month with the least rainfall in Halfa, Iowa, is January, when the rain falls for 2.9 days and typically collects 0.87" (22mm) of precipitation.
In Halfa, Iowa, during the entire year, the rain falls for 123.7 days and collects up to 23.66" (601mm) of precipitation.
Months with snowfall in Halfa, Iowa, are January through May, October through December.
In Halfa, Iowa, during the entire year, snow falls for 48.8 days and aggregates up to 19.76" (502mm) of snow.
January has the least sunshine of the year in Halfa, Iowa, with an average of 3.9h of sunshine.
January and February, 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 10 days and typically aggregates up to 4.8" (122mm) 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.
June is the month with the most rainfall. Rain falls for 18 days and accumulates 3.7" (94mm) of precipitation.
June through September are months without snowfall in Halfa, Iowa.
With an average of 15h and 24min of daylight, June has the longest days of the year in Halfa.
The months with the highest UV index in Halfa, Iowa, are June and July, with an average maximum UV index of 6.
Temperature records mark July as the warmest month, with highs averaging 80.2°F (26.8°C) and lows at 62.6°F (17°C).
July has the most sunshine of the year in Halfa, Iowa, with an average of 10.1h of sunshine.
With an average relative humidity of 68%, October is the least humid month in Halfa, Iowa.
The month with the shortest days in Halfa, Iowa, is December, with an average of 9h and 0min of daylight.
Average temperature
Halfa, IA
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.5°F).
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure
Halfa, IA
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.15"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.88"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:
29.99"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.12"Hg
The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed
Halfa, IA
- Average wind speed in January:
11.2mph - Average wind speed in February:
11.1mph - Average wind speed in March:
10.7mph - Average wind speed in April:
11.1mph - Average wind speed in May:
9.6mph - Average wind speed in June:
8.6mph
- Average wind speed in July:
7.6mph - Average wind speed in August:
7.7mph - Average wind speed in September:
8.9mph - Average wind speed in October:
10.4mph - Average wind speed in November:
10.9mph - Average wind speed in December:
10.7mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity
Halfa, IA
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (68%).
Average rainfall
Halfa, IA
- Average rainfall in January:
0.87" - Average rainfall in February:
0.98" - Average rainfall in March:
1.65" - Average rainfall in April:
2.6" - Average rainfall in May:
3.27" - Average rainfall in June:
3.7"
- Average rainfall in July:
2.24" - Average rainfall in August:
1.93" - Average rainfall in September:
2.28" - Average rainfall in October:
1.81" - Average rainfall in November:
1.02" - Average rainfall in December:
1.3"
The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days
Halfa, IA
- Average rainfall days in January:
2.9 days - Average rainfall days in February:
2.3 days - Average rainfall days in March:
9.5 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
16.2 days - Average rainfall days in June:
18 days
- Average rainfall days in July:
14.3 days - Average rainfall days in August:
13.5 days - Average rainfall days in September:
11.7 days - Average rainfall days in October:
10.7 days - Average rainfall days in November:
6.4 days - Average rainfall days in December:
4.4 days
The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is February (2.3 days).
Average snowfall
Halfa, IA
The month with the highest snowfall is February (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Halfa, IA
- Average snowfall days in January:
11.3 days - Average snowfall days in February:
10 days - Average snowfall days in March:
6.7 days - Average snowfall days in April:
2.6 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:
1.8 days - Average snowfall days in November:
5 days - Average snowfall days in December:
11.1 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Halfa, IA
- Average daylight in January:
9h and 24min - Average daylight in February:
10h and 30min - 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 24min
- 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 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
3h and 54min - Average sunshine in February:
4h and 36min - Average sunshine in March:
5h and 54min - Average sunshine in April:
7h and 48min - Average sunshine in May:
8h and 36min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
9h and 36min - Average sunshine in September:
9h and 6min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Halfa, IA
- Average sunshine days in January:
18 days - Average sunshine days in February:
16.5 days - Average sunshine days in March:
15.4 days - Average sunshine days in April:
12.3 days - Average sunshine days in May:
13 days - Average sunshine days in June:
10.1 days
- Average sunshine days in July:
13.5 days - Average sunshine days in August:
15.3 days - Average sunshine days in September:
16.8 days - Average sunshine days in October:
17.4 days - Average sunshine days in November:
18.5 days - Average sunshine days in December:
17.1 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (10.1 days).
Average UV index
Halfa, IA
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover
Halfa, IA
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and September (Cloud cover 31).
Average visibility
Halfa, IA
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
