Climate and monthly weather forecastStanley, IA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Stanley, Iowa, is a freezing cold winter month, with temperature in the range of an average high of 23.7°F (-4.6°C) and an average low of 11.3°F (-11.5°C). January, with average temperatures reaching a high of 23.7°F (-4.6°C) and a low of 11.3°F (-11.5°C), is the coldest month. Weather in January »Weather in February
February, the last month of the winter in Stanley, is also a subzero cold month, with an average temperature fluctuating between 14.7°F (-9.6°C) and 27.7°F (-2.4°C). As Stanley, Iowa, transitions into February, the average high-temperature stands at a still subzero cold 27.7°F (-2.4°C), offering little variation from the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a cold month in Stanley, Iowa, with an average temperature fluctuating between 42.4°F (5.8°C) and 28.6°F (-1.9°C). March's arrival signals a significant increase in average high-temperatures, soaring from February's subzero cold 27.7°F (-2.4°C) to an icy 42.4°F (5.8°C). Weather in March »Weather in April
April in Stanley, Iowa, is a mild spring month, with an average temperature varying between 55.8°F (13.2°C) and 39.4°F (4.1°C). April's onset is marked by a temperature increase, moving from an icy 42.4°F (5.8°C) in March to a moderate 55.8°F (13.2°C). Weather in April »Weather in May
May, the last month of the spring in Stanley, is a comfortable month, with an average temperature varying between 66.9°F (19.4°C) and 50.5°F (10.3°C). As May sets, the average high-temperature shows an increase, moving up from a moderate 55.8°F (13.2°C) in April to an enjoyable 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 Stanley, Iowa, with temperature in the range of an average high of 77°F (25°C) and an average low of 60.4°F (15.8°C). Stanley sees an increase in the average high-temperature with the arrival of June, moving from May's enjoyable 66.9°F (19.4°C) to a moderately hot 77°F (25°C). Weather in June »Weather in July
July, like June, in Stanley, Iowa, is another warm summer month, with temperature in the range of an average low of 63°F (17.2°C) and an average high of 79.3°F (26.3°C). July is the month when Stanley sees the highest average temperatures, with a high of 79.3°F (26.3°C) and a low of 63°F (17.2°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Stanley, Iowa, with an average temperature ranging between min 60.4°F (15.8°C) and max 77.7°F (25.4°C). Stanley marks the arrival of August with an average high-temperature of a still warm 77.7°F (25.4°C), hardly different from July's 79.3°F (26.3°C). Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Stanley, Iowa, with an average temperature fluctuating between 53.2°F (11.8°C) and 72.5°F (22.5°C). September's onset records a minor alteration in the average high-temperature to an agreeable 72.5°F (22.5°C) from August's 77.7°F (25.4°C). Weather in September »Weather in October
October, the same as September, in Stanley, Iowa, is another mild autumn month, with an average temperature varying between 42.8°F (6°C) and 58.1°F (14.5°C). Stanley's transition into October marks a considerable drop in the average high-temperature, moving down from a pleasant 72.5°F (22.5°C) in September to a refreshing 58.1°F (14.5°C). Weather in October »Weather in November
November, the last month of the autumn in Stanley, is also a frosty month, with an average temperature fluctuating between 30.7°F (-0.7°C) and 43.5°F (6.4°C). With the onset of November, Stanley experiences a distinct temperature drop, with the average high-temperature reducing from October's refreshing 58.1°F (14.5°C) to a chilly 43.5°F (6.4°C). Weather in November »Weather in December
The first month of the winter, December, is also a subzero cold month in Stanley, Iowa, with an average temperature varying between 20.1°F (-6.6°C) and 30.4°F (-0.9°C). Stanley in December undergoes a mild reduction in the average high-temperature, shifting from November's frosty 43.5°F (6.4°C) to a freezing cold 30.4°F (-0.9°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
Stanley records the coldest temperatures in January, averaging a high of 23.7°F (-4.6°C) and a low of 11.3°F (-11.5°C).
January is the most humid month in Stanley, with an average relative humidity of 88%.
The month with the least rainfall in Stanley is January, when the rain falls for 3.5 days and typically collects 0.94" (24mm) of precipitation.
In Stanley, Iowa, during the entire year, the rain falls for 135.7 days and collects up to 29.65" (753mm) of precipitation.
January through May, October through December are months with snowfall in Stanley, Iowa.
Throughout the year, there are 42.1 snowfall days, and 18.39" (467mm) of snow is accumulated.
January has the least sunshine of the year in Stanley, with an average of 3.6h of sunshine.
The months with the lowest UV index in Stanley, Iowa, are January, November and December, with an average maximum UV index of 1.
February is the month with the most snowfall in Stanley. Snow falls for 10.5 days and accumulates 5.08" (129mm) 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 in Stanley. Rain falls for 19.4 days and accumulates 5" (127mm) of precipitation.
In Stanley, Iowa, snow does not fall in June through September.
With an average of 15h and 18min of daylight, June has the longest days of the year in Stanley, Iowa.
The month with the highest UV index is June, with an average maximum UV index of 6.
The month of July sees the average highest temperatures, reaching 79.3°F (26.3°C) at the peak and 63°F (17.2°C) at the low.
July and August, with an average of 9.8h of sunshine, are months with the most sunshine in Stanley.
With an average relative humidity of 73%, October is the least humid month in Stanley.
With an average of 9h and 6min of daylight, December has the shortest days of the year in Stanley.
Average temperature
Stanley, IA
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (23.7°F).
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure
Stanley, 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:
29.93"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:
30"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
Stanley, IA
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.9mph - Average wind speed in May:
9.4mph - 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:
8.3mph - Average wind speed in October:
9.9mph - Average wind speed in November:
10.5mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity
Stanley, IA
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Stanley, IA
- Average rainfall in January:
0.94" - Average rainfall in February:
1.14" - Average rainfall in March:
1.73" - Average rainfall in April:
3.23" - Average rainfall in May:
4.41" - Average rainfall in June:
5"
- Average rainfall in July:
3.23" - Average rainfall in August:
2.28" - Average rainfall in September:
2.4" - Average rainfall in October:
2.56" - Average rainfall in November:
1.46" - Average rainfall in December:
1.26"
The wettest month (with the highest rainfall) is June (5").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days
Stanley, IA
- Average rainfall days in January:
3.5 days - Average rainfall days in February:
3.6 days - Average rainfall days in March:
10 days - Average rainfall days in April:
15 days - Average rainfall days in May:
18.7 days - Average rainfall days in June:
19.4 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
13.8 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
10.4 days - Average rainfall days in November:
7 days - Average rainfall days in December:
5.5 days
The month with the highest number of rainy days is June (19.4 days).
The month with the least rainy days is January (3.5 days).
Average snowfall
Stanley, IA
- Average snowfall in January:
4.25" - Average snowfall in February:
5.08" - Average snowfall in March:
2.36" - Average snowfall in April:
1.65" - Average snowfall in May:
0.24" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.08").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Stanley, IA
- Average snowfall days in January:
9.8 days - Average snowfall days in February:
10.5 days - Average snowfall days in March:
5.9 days - Average snowfall days in April:
2.3 days - Average snowfall days in May:
0.2 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:
0.9 days - Average snowfall days in November:
3.8 days - Average snowfall days in December:
8.7 days
The month with the highest number of snowfall days is February (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Stanley, 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 18min
- 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 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
3h and 36min - Average sunshine in February:
3h and 54min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 30min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 24min
- Average sunshine in July:
9h and 48min - Average sunshine in August:
9h and 48min - Average sunshine in September:
9h and 6min - Average sunshine in October:
5h and 24min - Average sunshine in November:
5h and 12min - Average sunshine in December:
4h and 6min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days
Stanley, IA
- Average sunshine days in January:
17.8 days - Average sunshine days in February:
15.2 days - Average sunshine days in March:
15.3 days - Average sunshine days in April:
12.3 days - Average sunshine days in May:
10.1 days - Average sunshine days in June:
7.8 days
- Average sunshine days in July:
9.5 days - Average sunshine days in August:
14 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
19.8 days - Average sunshine days in December:
18.5 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is June (7.8 days).
Average UV index
Stanley, 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
Stanley, IA
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility
Stanley, 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).
