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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Blairstown, Iowa, is a freezing cold winter month, with an average temperature fluctuating between 13.5°F (-10.3°C) and 25.9°F (-3.4°C). The coldest month is January, with an average high-temperature of 25.9°F (-3.4°C) and an average low-temperature of 13.5°F (-10.3°C). Weather in January »
Weather in February
The last month of the winter, February, is another freezing cold month in Blairstown, Iowa, with an average temperature varying between 17.1°F (-8.3°C) and 30.2°F (-1°C). Blairstown measures an average high-temperature of a still freezing cold 30.2°F (-1°C) in February, nearly consistent with the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Blairstown, Iowa, with temperature in the range of an average high of 45.1°F (7.3°C) and an average low of 30.6°F (-0.8°C). As March arrives, Blairstown's weather displays a notable increase in high-temperatures, climbing from February's subzero cold 30.2°F (-1°C) to a frosty 45.1°F (7.3°C). Weather in March »
Weather in April
April is a mild spring month in Blairstown, Iowa, with temperature in the range of an average high of 57.7°F (14.3°C) and an average low of 41.4°F (5.2°C). April brings a temperature increase, with average high-temperatures moving from March's chilly 45.1°F (7.3°C) to a refreshing 57.7°F (14.3°C). Weather in April »
Weather in May
May, the last month of the spring in Blairstown, is an agreeable month, with an average temperature ranging between min 52.2°F (11.2°C) and max 68.7°F (20.4°C). The onset of May brings a rise in the average high-temperature, elevating from a mild 57.7°F (14.3°C) in April to a pleasant 68.7°F (20.4°C). Weather in May »
Weather in June
June, the first month of the summer in Blairstown, is a moderately hot month, with an average temperature fluctuating between 61.7°F (16.5°C) and 78.1°F (25.6°C). The rise of average high-temperatures is seen in June, with an increase from a pleasant 68.7°F (20.4°C) in May to a moderately hot 78.1°F (25.6°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Blairstown, Iowa, with an average temperature ranging between min 64.4°F (18°C) and max 80.8°F (27.1°C). The warmest time of the year is July, with temperatures averaging a high of 80.8°F (27.1°C) and a low of 64.4°F (18°C). July's heat index is calculated to be a hot 86°F (30°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Blairstown, Iowa, with an average temperature fluctuating between 79.5°F (26.4°C) and 61.9°F (16.6°C). The shift into August finds Blairstown at an average high-temperature of a still moderately hot 79.5°F (26.4°C), closely comparable to July's conditions. Weather in August »
Weather in September
September, the first month of the autumn in Blairstown, is still a warm month, with an average temperature ranging between min 55°F (12.8°C) and max 74.3°F (23.5°C). The advent of September sees the average high-temperature at a still moderately hot 74.3°F (23.5°C), subtly shifted from August's 79.5°F (26.4°C). Weather in September »
Weather in October
October, like September, is a moderate autumn month in Blairstown, Iowa, with an average temperature ranging between max 59.9°F (15.5°C) and min 44.1°F (6.7°C). The start of October signals a considerable reduction in the average high-temperature, receding from a warm 74.3°F (23.5°C) in September to a refreshing 59.9°F (15.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Blairstown, Iowa, with an average temperature ranging between min 32.2°F (0.1°C) and max 45.1°F (7.3°C). Blairstown's transition into November marks a considerable drop in the average high-temperature, moving down from a moderate 59.9°F (15.5°C) in October to a chilly 45.1°F (7.3°C). Weather in November »
Weather in December
December, the first month of the winter in Blairstown, is still a cold month, with an average temperature varying between 32.7°F (0.4°C) and 21.7°F (-5.7°C). During Blairstown's transition into December, the average high-temperature lessens, moving from a frosty 45.1°F (7.3°C) in November to an icy 32.7°F (0.4°C). Weather in December »
Updated: Aug 21, 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
What is the coldest time of year?
January stands out as Blairstown's coldest month, with temperatures ranging between an average high of 25.9°F (-3.4°C) and a low of 13.5°F (-10.3°C).
What is the most humid month?
With an average relative humidity of 85%, January is the most humid month.
What is the driest month?
January is the month with the least rainfall. Rain falls for 4.5 days and accumulates 1.18" (30mm) of precipitation.
How many days does it rain?
Throughout the year, there are 139 rainfall days, and 29.49" (749mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through May, October through December.
When does it snow the most?
The month with the most snowfall is January, when snow falls for 9.6 days and typically aggregates up to 5.24" (133mm) of snow.
How much does it snow?
Throughout the year, there are 39 snowfall days, and 16.69" (424mm) of snow is accumulated.
What is the month with the least sunshine?
With an average of 4h of sunshine, January has the least sunshine of the year in Blairstown, Iowa.
What are the months with the lowest UV index?
The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2.
When is Daylight Saving Time (DST)?
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.
What is the rainiest month?
May is the month with the most rainfall. Rain falls for 18.1 days and accumulates 4.61" (117mm) of precipitation.
When it does not snow?
June through September are months without snowfall.
When are the longest days?
With an average of 15h and 12min of daylight, June has the longest days of the year.
When is the highest UV index?
June is the month with the highest UV index, with an average maximum UV index of 6.
What time of the year is the hottest?
Blairstown's warmest temperatures are experienced in July, with average high temperatures of 80.8°F (27.1°C) and lows of 64.4°F (18°C).
What month has the most sunshine?
With an average of 9.9h of sunshine, July has the most sunshine of the year.
What is the least humid month?
October is the least humid month, with an average relative humidity of 72%.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 12min of daylight.
Average temperature
Blairstown, IA
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (25.9°F).
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure
Blairstown, 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:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.09"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
Blairstown, IA
- Average wind speed in January:
10.7mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.6mph - Average wind speed in April:
10.8mph - Average wind speed in May:
9.2mph - Average wind speed in June:
8.1mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
7mph - Average wind speed in September:
8.1mph - Average wind speed in October:
9.8mph - 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 (10.8mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity
Blairstown, IA
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Blairstown, IA
- Average rainfall in January:
1.18" - Average rainfall in February:
1.26" - Average rainfall in March:
1.89" - Average rainfall in April:
3.23" - Average rainfall in May:
4.61" - Average rainfall in June:
4.13"
- Average rainfall in July:
3.19" - Average rainfall in August:
2.24" - Average rainfall in September:
2.52" - Average rainfall in October:
2.17" - Average rainfall in November:
1.57" - Average rainfall in December:
1.5"
The wettest month (with the highest rainfall) is May (4.61").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days
Blairstown, IA
- Average rainfall days in January:
4.5 days - Average rainfall days in February:
4.6 days - Average rainfall days in March:
10.8 days - Average rainfall days in April:
14.5 days - Average rainfall days in May:
18.1 days - Average rainfall days in June:
19.3 days
- Average rainfall days in July:
17.2 days - Average rainfall days in August:
13.3 days - Average rainfall days in September:
11.9 days - Average rainfall days in October:
10.1 days - Average rainfall days in November:
8.3 days - Average rainfall days in December:
6.4 days
The month with the highest number of rainy days is June (19.3 days).
The month with the least rainy days is January (4.5 days).
Average snowfall
Blairstown, IA
The month with the highest snowfall is January (5.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Blairstown, IA
- Average snowfall days in January:
9.6 days - Average snowfall days in February:
10.6 days - Average snowfall days in March:
5.3 days - Average snowfall days in April:
1.4 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:
0.6 days - Average snowfall days in November:
2.8 days - Average snowfall days in December:
8.5 days
The month with the highest number of snowfall days is February (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Blairstown, IA
- Average daylight in January:
9h and 3min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
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 12min).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
4h and 1min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 4min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 2min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days
Blairstown, IA
- Average sunshine days in January:
18.2 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
15.2 days - Average sunshine days in April:
13.4 days - Average sunshine days in May:
10.6 days - Average sunshine days in June:
8.4 days
- Average sunshine days in July:
10.1 days - Average sunshine days in August:
15.1 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
19.2 days - Average sunshine days in November:
18.3 days - Average sunshine days in December:
18.2 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is June (8.4 days).
Average UV index
Blairstown, IA
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover
Blairstown, IA
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility
Blairstown, 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).
Blairstown, Iowa, USA
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