Climate and monthly weather forecast
Bethesda, IA

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Weather in January

January, the same as December, in Bethesda, Iowa, is a freezing cold winter month, with temperature in the range of an average low of 17.2°F (-8.2°C) and an average high of 31.1°F (-0.5°C). January, with an average high of 31.1°F (-0.5°C) and a low of 17.2°F (-8.2°C), signifies the coldest month of the year. Weather in January »

Weather in February

The last month of the winter, February, is an icy month in Bethesda, Iowa, with an average temperature ranging between max 35.2°F (1.8°C) and min 20.7°F (-6.3°C). The arrival of February brings an average high-temperature of a cold 35.2°F (1.8°C), subtly diverging from January's 31.1°F (-0.5°C). Weather in February »

Weather in March

March, the first month of the spring in Bethesda, is a cool month, with temperature in the range of an average low of 33.8°F (1°C) and an average high of 50°F (10°C). Bethesda's transition into March is marked by a clear rise in the average high-temperature, advancing from a cold 35.2°F (1.8°C) in February to a fresh 50°F (10°C). Weather in March »

Weather in April

April in Bethesda, Iowa, is a comfortable spring month, with an average temperature varying between 61.5°F (16.4°C) and 43.3°F (6.3°C). April brings a rise in Bethesda's average high-temperature, moving from a fresh 50°F (10°C) in March to an enjoyable 61.5°F (16.4°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Bethesda, Iowa, with temperature in the range of an average high of 70.9°F (21.6°C) and an average low of 54.1°F (12.3°C). Bethesda's transition into May is marked by a temperature shift, moving from an enjoyable 61.5°F (16.4°C) in April to an agreeable 70.9°F (21.6°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Bethesda, Iowa, with an average temperature varying between 81.3°F (27.4°C) and 64°F (17.8°C). The arrival of June brings an increase in high-temperatures, moving from an agreeable 70.9°F (21.6°C) in May to a warm 81.3°F (27.4°C). Weather in June »

Weather in July

July, like June, in Bethesda, Iowa, is a moderately hot summer month, with an average temperature varying between 83.8°F (28.8°C) and 66.6°F (19.2°C). In Bethesda, July is identified by the highest average temperatures, reaching a peak of 83.8°F (28.8°C) and a low of 66.6°F (19.2°C). In July, the average heat index is calculated 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). As July turns into August, the average high-temperatures rest at a still moderately hot 82.2°F (27.9°C), showing a minor variation from the prior month. Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Bethesda, Iowa, with an average temperature ranging between max 76.6°F (24.8°C) and min 57°F (13.9°C). The arrival of September correlates with a minor temperature reduction, down from August's 82.2°F (27.9°C) 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 comfortable autumn month, with an average temperature fluctuating between 45.1°F (7.3°C) and 61.9°F (16.6°C). Bethesda in October showcases a distinct temperature shift, moving from an average high of a moderately hot 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 an average temperature fluctuating between 33.4°F (0.8°C) and 49.1°F (9.5°C). As October transitions to November, the average high-temperature falls from a refreshing 61.9°F (16.6°C) to a chilly 49.1°F (9.5°C). Weather in November »

Weather in December

December, the first month of the winter in Bethesda, is also a wintry month, with an average temperature fluctuating between 35.2°F (1.8°C) and 22.8°F (-5.1°C). December implies a gentle temperature shift, with average high-temperatures reducing from November's chilly 49.1°F (9.5°C) to a wintry 35.2°F (1.8°C). Weather in December »
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Frequently asked questions

What is the coldest month in Bethesda?

In Bethesda, January is the month with the lowest recorded average temperatures, measuring a high of 31.1°F (-0.5°C) and a low of 17.2°F (-8.2°C).

What is the most humid month in Bethesda?

The most humid month in Bethesda is January, with an average relative humidity of 80%.

How much does it rain in Bethesda?

In Bethesda, Iowa, during the entire year, the rain falls for 114.9 days and collects up to 18.39" (467mm) of precipitation.

When does it snow in Bethesda?

January through April, October through December are months with snowfall.

What is the snowiest month in Bethesda?

The month with the most snowfall in Bethesda, Iowa, is January, when snow falls for 7.8 days and typically aggregates up to 2.17" (55mm) of snow.

How much does it snow in Bethesda?

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 in Bethesda?

January has the least sunshine of the year in Bethesda, with an average of 4.6h of sunshine.

When is the lowest UV index in Bethesda?

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 in Bethesda?

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) in Bethesda?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Bethesda, 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?

In Bethesda, Iowa, snow does not fall in May through September.

What is the wettest month in Bethesda?

The month with the most rainfall is June, when the rain falls for 14.8 days and typically aggregates up to 3.39" (86mm) of precipitation.

When are the longest days in Bethesda?

June has the longest days of the year in Bethesda, with an average of 15h and 6min of daylight.

What is the month with the highest UV index in Bethesda?

The months with the highest UV index in Bethesda, Iowa, are June through August, with an average maximum UV index of 6.

What is the hottest time of year in Bethesda?

July is the warmest month in Bethesda, with the temperature often reaching an average high of 83.8°F (28.8°C) and an average low of 66.6°F (19.2°C).

What month has the most sunshine in Bethesda?

The month with the most sunshine in Bethesda is July, with an average of 10.4h of sunshine.

What is the least humid month in Bethesda?

October is the least humid month in Bethesda, Iowa, with an average relative humidity of 69%.

What is the month with the shortest days in Bethesda?

The month with the shortest days in Bethesda, Iowa, is December, with an average of 9h and 18min of daylight.

Average temperature
Bethesda, IA

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).

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Average pressure
Bethesda, IA

Average pressure - Bethesda, IA

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed
Bethesda, IA

Average wind speed - Bethesda, IA

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).

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Average rainfall
Bethesda, IA

Average rainfall - Bethesda, IA

The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is February (0.43").

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Average rainfall days
Bethesda, IA

Average rainfall days - Bethesda, IA

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).

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Average snowfall
Bethesda, IA

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").

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Average snowfall days
Bethesda, IA

Average snowfall days - Bethesda, IA

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).

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Average daylight / Average sunshine
Bethesda, IA

Average daylight / Average sunshine - Bethesda, IA

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).

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).

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Average sunshine days
Bethesda, IA

Average sunshine days - Bethesda, IA

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (12.3 days).

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Average UV index
Bethesda, IA

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).

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Average visibility
Bethesda, IA

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).

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Bethesda, Iowa, USA

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