Climate and monthly weather forecast
Waltham, MN

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Weather in January

January, like December, is a freezing cold winter month in Waltham, Minnesota, with an average temperature varying between 20.7°F (-6.3°C) and 7.9°F (-13.4°C). January is Waltham's coldest month, registering average high temperatures of 20.7°F (-6.3°C) and lows of 7.9°F (-13.4°C). Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in Waltham, Minnesota, with temperature in the range of an average low of 11.5°F (-11.4°C) and an average high of 24.4°F (-4.2°C). Waltham marks the arrival of February with an average high-temperature of a still subzero cold 24.4°F (-4.2°C), hardly different from January's 20.7°F (-6.3°C). Weather in February »

Weather in March

March, the first month of the spring in Waltham, is a cold month, with an average temperature varying between 39.2°F (4°C) and 26.1°F (-3.3°C). March is characterized by a clear rise in the average high-temperature, escalating from February's freezing cold 24.4°F (-4.2°C) to a cold 39.2°F (4°C). Weather in March »

Weather in April

April in Waltham, Minnesota, is a cool spring month, with an average temperature ranging between max 53.1°F (11.7°C) and min 37.8°F (3.2°C). As April arrives, a rise in the average high-temperature is observed, moving from an icy 39.2°F (4°C) in March to a cool 53.1°F (11.7°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Waltham, Minnesota, with an average temperature ranging between min 49.6°F (9.8°C) and max 65.8°F (18.8°C). Waltham in May experiences an increase in the average high-temperature, moving from April's fresh 53.1°F (11.7°C) to an enjoyable 65.8°F (18.8°C). Weather in May »

Weather in June

June, the first month of the summer in Waltham, is a moderately hot month, with an average temperature ranging between max 75.2°F (24°C) and min 59.4°F (15.2°C). With the onset of June, Waltham's average high-temperature sees a rise, moving from May's comfortable 65.8°F (18.8°C) to a moderately hot 75.2°F (24°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Waltham, Minnesota, with temperature in the range of an average low of 62.4°F (16.9°C) and an average high of 78.8°F (26°C). July, on average, is the warmest month, registering a high temperature of 78.8°F (26°C) and a low of 62.4°F (16.9°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Waltham, Minnesota, with temperature in the range of an average high of 76.6°F (24.8°C) and an average low of 59.2°F (15.1°C). In August, Waltham experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 78.8°F (26°C) in July to a still moderately hot 76.6°F (24.8°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Waltham, Minnesota, with an average temperature varying between 52.5°F (11.4°C) and 71.1°F (21.7°C). The start of September involves a subtle temperature drop, shifting from a moderately hot 76.6°F (24.8°C) in August to a pleasant 71.1°F (21.7°C). Weather in September »

Weather in October

October, like September, is another refreshing autumn month in Waltham, Minnesota, with an average temperature varying between 55.6°F (13.1°C) and 41°F (5°C). In October, the meteorological conditions markedly change with the average high-temperature descending from a pleasant 71.1°F (21.7°C) in September to a mild 55.6°F (13.1°C). Weather in October »

Weather in November

The last month of the autumn, November, is also an icy month in Waltham, Minnesota, with an average temperature fluctuating between 41°F (5°C) and 28.8°F (-1.8°C). November is characterized by a noticeable reduction in the average high-temperature, falling from a refreshing 55.6°F (13.1°C) in October to a wintry 41°F (5°C). Weather in November »

Weather in December

December, the first month of the winter in Waltham, is still a freezing cold month, with an average temperature varying between 26.1°F (-3.3°C) and 15.6°F (-9.1°C). A notable decrease in the average high-temperature is observed during December, falling from an icy 41°F (5°C) in November to a freezing cold 26.1°F (-3.3°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Waltham?

In Waltham, the average lowest temperatures are observed in January, with a high of 20.7°F (-6.3°C) and a low of 7.9°F (-13.4°C).

What is the most humid month in Waltham?

January is the most humid month in Waltham, Minnesota, with an average relative humidity of 91%.

What is the driest month in Waltham?

January is the month with the least rainfall in Waltham, Minnesota. Rain falls for 2.5 days and accumulates 0.79" (20mm) of precipitation.

How many days does it rain in Waltham?

Throughout the year, there are 125.5 rainfall days, and 23.66" (601mm) of precipitation is accumulated.

When does it snow in Waltham?

Months with snowfall in Waltham are January through May, October through December.

How many days does it snow in Waltham?

In Waltham, Minnesota, during the entire year, snow falls for 58.6 days and aggregates up to 23.98" (609mm) of snow.

What is the month with the least sunshine in Waltham?

The month with the least sunshine is January, with an average of 3.1h of sunshine.

What are the months with the lowest UV index in Waltham?

The months with the lowest UV index in Waltham are January, February, November and December, with an average maximum UV index of 1.

When does it snow the most in Waltham?

February is the month with the most snowfall. Snow falls for 12.3 days and accumulates 6.26" (159mm) of snow.

When is Daylight Saving Time (DST) in Waltham?

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 in Waltham?

June is the month with the most rainfall. Rain falls for 17.9 days and accumulates 4.06" (103mm) of precipitation.

When it does not snow in Waltham?

In Waltham, Minnesota, snow does not fall in June through September.

When are the longest days in Waltham?

June has the longest days of the year in Waltham, with an average of 15h and 24min of daylight.

What is the hottest time of year in Waltham?

Waltham's warmest weather arrives in July, when temperatures average a high of 78.8°F (26°C) and a low of 62.4°F (16.9°C).

What month has the most sunshine in Waltham?

With an average of 9.8h of sunshine, July has the most sunshine of the year.

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

The month with the highest UV index is July, with an average maximum UV index of 6.

What is the least humid month in Waltham?

With an average relative humidity of 72%, October is the least humid month in Waltham.

What is the month with the shortest days in Waltham?

December has the shortest days of the year in Waltham, with an average of 9h and 0min of daylight.

Average temperature
Waltham, MN

Average temperature - Waltham, MN

The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (20.7°F).

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).

Average pressure
Waltham, MN

Average pressure - Waltham, MN

The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed
Waltham, MN

Average wind speed - Waltham, MN

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).

Average humidity
Waltham, MN

Average humidity - Waltham, MN

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is October (72%).

Average rainfall
Waltham, MN

Average rainfall - Waltham, MN

The wettest month (with the highest rainfall) is June (4.06").
The driest month (with the least rainfall) is January (0.79").

Average rainfall days
Waltham, MN

Average rainfall days - Waltham, MN

The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (1.9 days).

Average snowfall
Waltham, MN

Average snowfall - Waltham, MN

The month with the highest snowfall is February (6.26").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Waltham, MN

Average snowfall days - Waltham, MN

The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Waltham, MN

Average daylight / Average sunshine - Waltham, MN

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days
Waltham, MN

Average sunshine days - Waltham, MN

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (9.6 days).

Average UV index
Waltham, MN

Average UV index - Waltham, MN

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average visibility
Waltham, MN

Average visibility - Waltham, MN

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).

Waltham, Minnesota, USA

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