Climate and monthly weather forecast
Caldwell, ID

A small, calm river flows via a scenic nature park full of trees in the city of Caldwell, Idaho
A small, calm river flows via a scenic nature park full of trees in the city of Caldwell, Idaho

Weather in January

January, like December, in Caldwell, Idaho, is another cold winter month, with an average temperature varying between 25.3°F (-3.7°C) and 37°F (2.8°C). In Caldwell, the average high-temperature in January is relatively the same as in December - a still cold 37°F (2.8°C). Weather in January »

Weather in February

The last month of the winter, February, is a frosty month in Caldwell, Idaho, with an average temperature varying between 30.4°F (-0.9°C) and 43°F (6.1°C). In Caldwell, Idaho, the average high-temperature in February marginally rises from a wintry 37°F (2.8°C) in January to a chilly 43°F (6.1°C). Weather in February »

Weather in March

March, the first month of the spring in Caldwell, is a cool month, with an average temperature fluctuating between 37°F (2.8°C) and 52.3°F (11.3°C). In March, the average high-temperature increases from a frosty 43°F (6.1°C) in February to a cool 52.3°F (11.3°C). Weather in March »

Weather in April

April is a moderate spring month in Caldwell, Idaho, with an average temperature fluctuating between 40.6°F (4.8°C) and 59.9°F (15.5°C). In Caldwell, Idaho, the average high-temperature in April slightly increases from a cool 52.3°F (11.3°C) in March to a moderate 59.9°F (15.5°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Caldwell, Idaho, with an average temperature fluctuating between 69.6°F (20.9°C) and 47.1°F (8.4°C). In Caldwell, the average high-temperature in May increases from a moderate 59.9°F (15.5°C) in April to a pleasant 69.6°F (20.9°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Caldwell, Idaho, with an average temperature fluctuating between 54.5°F (12.5°C) and 78.6°F (25.9°C). In Caldwell, Idaho, the average high-temperature in June increases from a pleasant 69.6°F (20.9°C) in May to a warm 78.6°F (25.9°C). Weather in June »

Weather in July

July in Caldwell, Idaho, is a tropical summer month, with an average temperature fluctuating between 90.9°F (32.7°C) and 62.2°F (16.8°C). July is the warmest month, with an average high-temperature of 90.9°F (32.7°C) and an average low-temperature of 62.2°F (16.8°C). Weather in July »

Weather in August

The last month of the summer, August, is also a hot month in Caldwell, Idaho, with an average temperature ranging between max 89.8°F (32.1°C) and min 62.8°F (17.1°C). In August, the average high-temperature is relatively the same as in July - a still hot 89.8°F (32.1°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Caldwell, Idaho, with temperature in the range of an average high of 78.3°F (25.7°C) and an average low of 55.2°F (12.9°C). In September, the average high-temperature decreases from a tropical 89.8°F (32.1°C) in August to a warm 78.3°F (25.7°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Caldwell, Idaho, with temperature in the range of an average low of 44.2°F (6.8°C) and an average high of 61.5°F (16.4°C). In October, the average high-temperature declines considerably from a warm 78.3°F (25.7°C) in September to a comfortable 61.5°F (16.4°C). Weather in October »

Weather in November

November, the last month of the autumn in Caldwell, is also a frosty month, with temperature in the range of an average high of 48°F (8.9°C) and an average low of 33.4°F (0.8°C). In Caldwell, Idaho, the average high-temperature in November drops from an enjoyable 61.5°F (16.4°C) in October to a frosty 48°F (8.9°C). Weather in November »

Weather in December

December, the first month of the winter in Caldwell, is still a cold month, with temperature in the range of an average low of 24.8°F (-4°C) and an average high of 36.3°F (2.4°C). With an average high-temperature of 36.3°F (2.4°C) and an average low-temperature of 24.8°F (-4°C), December is the coldest month. Weather in December »
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FAQ

What is the most humid month in Caldwell?

The most humid month is January, with an average relative humidity of 79%.

How many days does it rain in Caldwell?

In Caldwell, during the entire year, the rain falls for 103.7 days and collects up to 9.84" (250mm) of precipitation.

When does it snow in Caldwell?

January through April, November and December are months with snowfall in Caldwell, Idaho.

How much does it snow in Caldwell?

Throughout the year, there are 22.2 snowfall days, and 9.76" (248mm) of snow is accumulated.

When is the lowest UV index in Caldwell?

The months with the lowest UV index in Caldwell, Idaho, are January, February, November and December, with an average maximum UV index of 2.

What is the rainiest month in Caldwell?

March is the month with the most rainfall. Rain falls for 15.1 days and accumulates 1.38" (35mm) of precipitation.

When is Daylight Saving Time (DST) in Caldwell?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Caldwell, Idaho, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from MDT to MST.

When it does not snow in Caldwell?

In Caldwell, Idaho, snow does not fall in May through October.

When are the longest days in Caldwell?

The month with the longest days is June, with an average of 15h and 23min of daylight.

What is the warmest month in Caldwell?

The warmest month is July, with an average high-temperature of 90.9°F (32.7°C) and an average low-temperature of 62.2°F (16.8°C).

What is the driest month in Caldwell?

The month with the least rainfall in Caldwell, Idaho, is July, when the rain falls for 3.9 days and typically collects 0.16" (4mm) of precipitation.

What month has the most sunshine in Caldwell?

The month with the most sunshine is July, with an average of 12.1h of sunshine.

When is the highest UV index in Caldwell?

The month with the highest UV index is July, with an average maximum UV index of 7.

What is the least humid month in Caldwell?

The least humid month is August, with an average relative humidity of 29%.

What is the coldest month in Caldwell?

With an average high-temperature of 36.3°F (2.4°C) and an average low-temperature of 24.8°F (-4°C), December is the coldest month in Caldwell.

When does it snow the most in Caldwell?

December is the month with the most snowfall. Snow falls for 7.2 days and accumulates 3.35" (85mm) of snow.

What is the month with the shortest days in Caldwell?

With an average of 9h and 0min of daylight, December has the shortest days of the year in Caldwell, Idaho.

What is the month with the least sunshine in Caldwell?

December has the least sunshine of the year, with an average of 5.7h of sunshine.

Average temperature
Caldwell, ID

Average temperature - Caldwell, ID

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is December (36.3°F).

The month with the highest average low temperature is August (62.8°F).
The coldest month (with the lowest average low temperature) is December (24.8°F).

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Average pressure
Caldwell, ID

Average pressure - Caldwell, ID

The month with the highest atmospheric pressure is January (30.25"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).

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Average wind speed
Caldwell, ID

Average wind speed - Caldwell, ID

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is January (5.2mph).

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Average rainfall
Caldwell, ID

Average rainfall - Caldwell, ID

The wettest month (with the highest rainfall) is March (1.38").
The driest month (with the least rainfall) is July (0.16").

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Average rainfall days
Caldwell, ID

Average rainfall days - Caldwell, ID

The month with the highest number of rainy days is March (15.1 days).
The month with the least rainy days is August (3.5 days).

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Average snowfall
Caldwell, ID

Average snowfall - Caldwell, ID

The month with the highest snowfall is December (3.35").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days
Caldwell, ID

Average snowfall days - Caldwell, ID

The month with the highest number of snowfall days is December (7.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Caldwell, ID

Average daylight / Average sunshine - Caldwell, ID

The month with the longest days is June (Average daylight: 15h and 23min).
The month with the shortest days is December (Average daylight: 9h and 0min).

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

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Average sunshine days
Caldwell, ID

Average sunshine days - Caldwell, ID

The month with the most sunshine days is July (23.3 days).
The month with the least sunshine days is March (14.6 days).

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Average UV index
Caldwell, ID

Average UV index - Caldwell, ID

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average visibility
Caldwell, ID

Average visibility - Caldwell, ID

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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