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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, like December, is a freezing cold winter month in Bethesda, Iowa, with an average temperature varying between 17.2°F (-8.2°C) and 31.1°F (-0.5°C). With average high temperatures of 31.1°F (-0.5°C) and lows of 17.2°F (-8.2°C), January is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is an icy month in Bethesda, Iowa, with an average temperature fluctuating between 35.2°F (1.8°C) and 20.7°F (-6.3°C). February ushers in an average high-temperature of a wintry 35.2°F (1.8°C), aligning closely with the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a cool month in Bethesda, Iowa, with an average temperature ranging between max 50°F (10°C) and min 33.8°F (1°C). Witnessing a clear upsurge, the average high-temperature during March escalates from February's icy 35.2°F (1.8°C) to a cool 50°F (10°C). Weather in March »
Weather in April
April in Bethesda, Iowa, is a comfortable spring month, with temperature in the range of an average low of 43.3°F (6.3°C) and an average high of 61.5°F (16.4°C). The start of April brings a rise in the average high-temperature, moving from a fresh 50°F (10°C) in March to a comfortable 61.5°F (16.4°C). Weather in April »
Weather in May
May, the last month of the spring in Bethesda, is an agreeable month, with an average temperature varying between 70.9°F (21.6°C) and 54.1°F (12.3°C). In Bethesda, the average high-temperature in May rises, from a comfortable 61.5°F (16.4°C) in April, to an agreeable 70.9°F (21.6°C). Weather in May »
Weather in June
June, the first month of the summer in Bethesda, is a warm month, with an average temperature varying between 81.3°F (27.4°C) and 64°F (17.8°C). In Bethesda, stepping into June brings a temperature increase, moving up from May's agreeable 70.9°F (21.6°C) to a moderately hot 81.3°F (27.4°C). Weather in June »
Weather in July
July, like June, in Bethesda, Iowa, is another warm summer month, with an average temperature varying between 66.6°F (19.2°C) and 83.8°F (28.8°C). In Bethesda, the month of July is known for its highest average temperatures, reaching a high of 83.8°F (28.8°C) and a low of 66.6°F (19.2°C). July's average heat index is computed to be a hot 93.2°F (34°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Bethesda, Iowa, with an average temperature fluctuating between 82.2°F (27.9°C) and 63.7°F (17.6°C). Bethesda marks the start of August with an average high-temperature of a still warm 82.2°F (27.9°C), hinting at a slight fluctuation from July's 83.8°F (28.8°C). Weather in August »
Weather in September
September, the first month of the autumn in Bethesda, is still a warm month, with an average temperature ranging between max 76.6°F (24.8°C) and min 57°F (13.9°C). Bethesda's September weather features a light decline in high-temperatures, reducing from a warm 82.2°F (27.9°C) in August to a still moderately hot 76.6°F (24.8°C). Weather in September »
Weather in October
October, like September, in Bethesda, Iowa, is another enjoyable autumn month, with an average temperature ranging between max 61.9°F (16.6°C) and min 45.1°F (7.3°C). The start of October signals a clear decrease in the average high-temperature, falling from a warm 76.6°F (24.8°C) in September to a refreshing 61.9°F (16.6°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Bethesda, Iowa, with temperature in the range of an average high of 49.1°F (9.5°C) and an average low of 33.4°F (0.8°C). The onset of November introduces a moderate change in Bethesda's weather, with average high-temperatures falling from October's refreshing 61.9°F (16.6°C) to a chilly 49.1°F (9.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Bethesda, Iowa, with an average temperature ranging between max 35.2°F (1.8°C) and min 22.8°F (-5.1°C). December brings a drop in Bethesda's average high-temperature, falling from a frosty 49.1°F (9.5°C) in November to a wintry 35.2°F (1.8°C). Weather in December »
Updated: Aug 18, 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 are the coldest months?
The coldest month is January, with an average high-temperature of 31.1°F (-0.5°C) and an average low-temperature of 17.2°F (-8.2°C).
What is the most humid month?
January is the most humid month, with an average relative humidity of 80%.
How many days does it rain?
In Bethesda, during the entire year, the rain falls for 114.9 days and collects up to 18.39" (467mm) of precipitation.
When does it snow?
January through April, October through December are months with snowfall.
What is the snowiest month?
The month with the most snowfall is January, when snow falls for 7.8 days and typically aggregates up to 2.17" (55mm) of snow.
How many days does it snow?
In Bethesda, during the entire year, snow falls for 25.2 days and aggregates up to 7.4" (188mm) of snow.
What is the month with the least sunshine?
January has the least sunshine of the year in Bethesda, with an average of 4.6h of sunshine.
What is the month with the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What is the driest month?
February is the month with the least rainfall. Rain falls for 3.4 days and accumulates 0.43" (11mm) of precipitation.
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.
When it does not snow in Bethesda?
May through September are months without snowfall.
What is the rainiest month?
June is the month with the most rainfall in Bethesda, Iowa. Rain falls for 14.8 days and accumulates 3.39" (86mm) of precipitation.
When are the longest days?
The month with the longest days is June, with an average of 15h and 6min of daylight.
What are the months with the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What time of the year is the hottest?
July is the month when Bethesda's temperatures reach their peak, with averages of 83.8°F (28.8°C) and lows of 66.6°F (19.2°C).
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.4h of sunshine.
What is the least humid month?
October is the least humid month, with an average relative humidity of 69%.
What is the month with the shortest days?
With an average of 9h and 18min of daylight, December has the shortest days of the year.
Average temperature
Bethesda, IA
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (31.1°F).
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).
Average pressure
Bethesda, IA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.91"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed
Bethesda, IA
- Average wind speed in January:
9.9mph - Average wind speed in February:
10mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.2mph - Average wind speed in May:
8.6mph - Average wind speed in June:
8mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.8mph - Average wind speed in September:
8mph - Average wind speed in October:
9mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.5mph
The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity
Bethesda, IA
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is October (69%).
Average rainfall
Bethesda, IA
- Average rainfall in January:
0.51" - Average rainfall in February:
0.43" - Average rainfall in March:
1.06" - Average rainfall in April:
1.42" - Average rainfall in May:
3.15" - Average rainfall in June:
3.39"
- Average rainfall in July:
2.17" - Average rainfall in August:
2.13" - Average rainfall in September:
1.34" - Average rainfall in October:
1.38" - Average rainfall in November:
0.83" - Average rainfall in December:
0.59"
The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is February (0.43").
Average rainfall days
Bethesda, IA
- Average rainfall days in January:
3.8 days - Average rainfall days in February:
3.4 days - Average rainfall days in March:
9.4 days - Average rainfall days in April:
12.4 days - Average rainfall days in May:
16.7 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
13.3 days - Average rainfall days in August:
12.6 days - Average rainfall days in September:
10.1 days - Average rainfall days in October:
8.6 days - Average rainfall days in November:
5.5 days - Average rainfall days in December:
4.3 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is February (3.4 days).
Average snowfall
Bethesda, IA
The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Bethesda, IA
- Average snowfall days in January:
7.8 days - Average snowfall days in February:
6.9 days - Average snowfall days in March:
3.3 days - Average snowfall days in April:
1 days - Average snowfall days in May:
0.1 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:
0.5 days - Average snowfall days in November:
1.1 days - Average snowfall days in December:
4.5 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Bethesda, IA
- Average daylight in January:
9h and 4min - 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 3min - 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 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
4h and 4min - Average sunshine in February:
5h and 3min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 2min - Average sunshine in May:
8h and 4min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 0min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days
Bethesda, IA
- Average sunshine days in January:
21.1 days - Average sunshine days in February:
18.8 days - Average sunshine days in March:
17.8 days - Average sunshine days in April:
15 days - Average sunshine days in May:
12.7 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
14.2 days - Average sunshine days in August:
15 days - Average sunshine days in September:
17.5 days - Average sunshine days in October:
20.2 days - Average sunshine days in November:
22.5 days - Average sunshine days in December:
22 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (12.3 days).
Average UV index
Bethesda, IA
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Bethesda, IA
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility
Bethesda, IA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Bethesda, Iowa, USA
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