Climate and monthly weather forecastJulien, IA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Julien, Iowa, is another subzero cold winter month, with an average temperature varying between 12.4°F (-10.9°C) and 25°F (-3.9°C). January, with its average high-temperature of 25°F (-3.9°C) and an average low-temperature of 12.4°F (-10.9°C), holds the record as the coldest month. Weather in January »Weather in February
The last month of the winter, February, is another freezing cold month in Julien, Iowa, with an average temperature ranging between max 28.6°F (-1.9°C) and min 15.3°F (-9.3°C). February's weather records an average high-temperature of a still freezing cold 28.6°F (-1.9°C), showing little deviation from January. Weather in February »Weather in March
March, the first month of the spring in Julien, is a chilly month, with an average temperature fluctuating between 43.3°F (6.3°C) and 28.4°F (-2°C). Julien in March experiences a marked increase in the average high-temperature, ascending from February's freezing cold 28.6°F (-1.9°C) to a frosty 43.3°F (6.3°C). Weather in March »Weather in April
April in Julien, Iowa, is a mild spring month, with temperature in the range of an average high of 55.9°F (13.3°C) and an average low of 38.8°F (3.8°C). The onset of April brings a temperature shift, with the average high-temperature moving from a chilly 43.3°F (6.3°C) in March to a mild 55.9°F (13.3°C). Weather in April »Weather in May
May, the last month of the spring in Julien, is a refreshing month, with an average temperature varying between 50.2°F (10.1°C) and 66.9°F (19.4°C). The start of May brings a rise in the average high-temperature, moving from a mild 55.9°F (13.3°C) in April to a comfortable 66.9°F (19.4°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Julien, Iowa, with an average temperature ranging between min 59.4°F (15.2°C) and max 76.3°F (24.6°C). Julien's transition into June sees a rise in the average high-temperature, advancing from an enjoyable 66.9°F (19.4°C) in May to a warm 76.3°F (24.6°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Julien, Iowa, with an average temperature varying between 79.7°F (26.5°C) and 62.8°F (17.1°C). In Julien, temperatures reach their average annual highs in July, measuring 79.7°F (26.5°C) and a minimum average of 62.8°F (17.1°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Julien, Iowa, with an average temperature fluctuating between 78.6°F (25.9°C) and 60.4°F (15.8°C). With the onset of August, the average high-temperature registers at a still warm 78.6°F (25.9°C), subtly different from July's 79.7°F (26.5°C). Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Julien, Iowa, with temperature in the range of an average low of 53.2°F (11.8°C) and an average high of 72.5°F (22.5°C). Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a warm 78.6°F (25.9°C) to a pleasant 72.5°F (22.5°C). Weather in September »Weather in October
October, like September, is another refreshing autumn month in Julien, Iowa, with temperature in the range of an average low of 41.9°F (5.5°C) and an average high of 58.1°F (14.5°C). As October sets, the average high-temperature displays a significant decrease, moving down from an agreeable 72.5°F (22.5°C) in September to a mild 58.1°F (14.5°C). Weather in October »Weather in November
November, the last month of the autumn in Julien, is another chilly month, with an average temperature ranging between min 30.6°F (-0.8°C) and max 43.9°F (6.6°C). In November, the average high-temperature decreases from a moderate 58.1°F (14.5°C) in October to a frosty 43.9°F (6.6°C). Weather in November »Weather in December
December, the first month of the winter in Julien, is also a subzero cold month, with an average temperature ranging between min 21°F (-6.1°C) and max 31.5°F (-0.3°C). Stepping into December, Julien observes a temperature decline, with the average high falling from November's chilly 43.9°F (6.6°C) to a subzero cold 31.5°F (-0.3°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
Julien experiences its average lowest temperatures in January, reaching a peak of 25°F (-3.9°C) and a minimum of 12.4°F (-10.9°C).
The months with the highest humidity in Julien, Iowa, are January and February, with an average relative humidity of 87%.
The months with the least rainfall are January and February Rain falls for 4.8 days and accumulates 1.14" (29mm) of rain.
Throughout the year, in Julien, there are 135.3 rainfall days, and 27.4" (696mm) of precipitation is accumulated.
January through April, October through December are months with snowfall.
The month with the most snowfall in Julien, Iowa, is January, when snow falls for 12.8 days and typically aggregates up to 4.88" (124mm) of snow.
In Julien, during the entire year, snow falls for 43.9 days and aggregates up to 17.09" (434mm) of snow.
January has the least sunshine of the year in Julien, with an average of 3.5h of sunshine.
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1.
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 wettest months are May and June, with an average 3.7" (94mm) of rainfall.
In Julien, Iowa, snow does not fall in May through September.
June has the longest days of the year in Julien, Iowa, with an average of 15h and 12min of daylight.
With an average maximum UV index of 6, June is the month with the highest UV index in Julien, Iowa.
In Julien, July registers the highest temperatures, averaging 79.7°F (26.5°C) at the peak and 62.8°F (17.1°C) at the lowest.
July and August, with an average of 9.7h of sunshine, are months with the most sunshine.
October is the least humid month in Julien, with an average relative humidity of 76%.
The month with the shortest days in Julien, Iowa, is December, with an average of 9h and 6min of daylight.
Average temperature
Julien, IA
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (25°F).
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).
Average pressure
Julien, IA
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.9"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"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
Julien, IA
- Average wind speed in January:
10.2mph - Average wind speed in February:
10.1mph - Average wind speed in March:
10.1mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.9mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
6.8mph - Average wind speed in August:
6.8mph - Average wind speed in September:
7.8mph - Average wind speed in October:
9.4mph - Average wind speed in November:
10.1mph - Average wind speed in December:
9.8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity
Julien, IA
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is October (76%).
Average rainfall
Julien, IA
- Average rainfall in January:
1.14" - Average rainfall in February:
1.14" - Average rainfall in March:
1.61" - Average rainfall in April:
2.91" - Average rainfall in May:
3.7" - Average rainfall in June:
3.7"
- Average rainfall in July:
3.27" - Average rainfall in August:
1.73" - Average rainfall in September:
2.6" - Average rainfall in October:
2.56" - Average rainfall in November:
1.65" - Average rainfall in December:
1.38"
The wettest months (with the highest rainfall) are May and June (3.7").
The driest months (with the least rainfall) are January and February (1.14").
Average rainfall days
Julien, IA
- Average rainfall days in January:
4.8 days - Average rainfall days in February:
4.4 days - Average rainfall days in March:
11.1 days - Average rainfall days in April:
15.1 days - Average rainfall days in May:
17.7 days - Average rainfall days in June:
17.3 days
- Average rainfall days in July:
15 days - Average rainfall days in August:
12.1 days - Average rainfall days in September:
11.4 days - Average rainfall days in October:
11.7 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
6.3 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (4.4 days).
Average snowfall
Julien, IA
The month with the highest snowfall is January (4.88").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Julien, IA
- Average snowfall days in January:
12.8 days - Average snowfall days in February:
10 days - Average snowfall days in March:
5.8 days - Average snowfall days in April:
2 days - Average snowfall days in May:
0 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:
0.6 days - Average snowfall days in November:
3.7 days - Average snowfall days in December:
9 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Julien, 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 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - 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 12min).
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:
6h and 6min - Average sunshine in April:
7h and 12min - Average sunshine in May:
8h and 12min - Average sunshine in June:
9h and 18min
- Average sunshine in July:
9h and 42min - Average sunshine in August:
9h and 42min - Average sunshine in September:
8h and 54min - Average sunshine in October:
5h and 6min - Average sunshine in November:
4h and 54min - Average sunshine in December:
4h and 0min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days
Julien, IA
- Average sunshine days in January:
15.7 days - Average sunshine days in February:
14.7 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
11.8 days - Average sunshine days in May:
12.1 days - Average sunshine days in June:
10.3 days
- Average sunshine days in July:
13.8 days - Average sunshine days in August:
17.4 days - Average sunshine days in September:
17.2 days - Average sunshine days in October:
17 days - Average sunshine days in November:
17.5 days - Average sunshine days in December:
17.5 days
The months with the most sunshine days are November and December (17.5 days).
The month with the least sunshine days is June (10.3 days).
Average UV index
Julien, IA
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover
Julien, 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
Julien, IA
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
