Climate and monthly weather forecast
Harvey, ND

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The climate of Harvey

Located in North Dakota, USA, Harvey experiences a climate classified as Dfb under the Köppen climate classification, denoting a humid continental climate, characterized by no dry season and warm summers. Gradual shifts are noticeable in Harvey's weather as it passes through the calendar months.

Harvey's temperatures range from a chilly 3°F (-16.1°C) in the colder months of January and February, and gradually rise, reaching a peak during the summertime with an average high temperature of 80.4°F (26.9°C) in July, and an average low of 59.5°F (15.3°C). Relative humidity levels score high in the depth of winter with a percentage of 91 in January, with a dip to 57%, the lowest in August. Rainfall varies between 0.51" (13mm) in February to a high of 3.07" (78mm) in June. Days with rainfall range from as low as 2.1 days in February to 17.3 days in June.

Snowfall is a common weather characteristic in Harvey, especially between the months of January and March and then again from October to December. The snowfall amount peaks to 4.84" (123mm) in December.

Harvey enjoys daylight hours to the maximum during June, with an average of 15.9 hours, while the shortest days occur in December with approximately 8.5 hours of daylight. Sunlight hours follow a similar pattern, maximizing to 11.1 hours in July, and dipping down to 3.6 hours in December. UV Index reaches a peak of 6 in July while it remains at 1 during winter months.

The best time to visit Harvey

Taking into account various weather elements including temperature, humidity, rainfall, and sunshine hours, the best time to visit Harvey is between late May and early September. During these months, Harvey experiences the highest temperatures of the year, along with the longest daylight hours. UV Index during these months is high, which is beneficial for outdoor activities.

The worst time to visit Harvey

Within the range of the yearly climatic cycle of Harvey, the colder months from November to March pose challenges for outdoor activities. Due to frigid temperatures, high snowfall, and reduced daylight hours, these months are less conducive for a visit to Harvey.

Spring weather in Harvey

Spring in Harvey unfolds from March to May, with temperatures ascending from an average high of 34.3°F (1.3°C) to 63.7°F (17.6°C), and lows stretching from 19.9°F (-6.7°C) to 46°F (7.8°C). Rainfall increases during this season, reaching up to 2.36" (60mm) in May, implicating wetter conditions.

Summer weather in Harvey

The summer season in Harvey, spanning from June to August, witnesses the highest temperatures of the year. The average highs reach 80.4°F (26.9°C) in July, while the average lows are in the high 50s. This season experiences the highest volume of rainfall, with June being the wettest month registering 3.07" (78mm).

Autumn weather in Harvey

Autumn descends on Harvey from September to November. During these months, temperatures start to decrease from an average high of 70.3°F (21.3°C) to 35.4°F (1.9°C) and lows from 50.9°F (10.5°C) to 23.5°F (-4.7°C). Rainfall during autumn varies from 1.73" (44mm) to 0.67" (17mm).

Winter weather in Harvey

Winter in Harvey transcribes from December to February, characterized by the coldest temperatures of the year. Average low temperatures plunge to 3°F (-16.1°C), and high averages remain below freezing at 18°F (-7.8°C) to 20.1°F (-6.6°C). Snowfall in Harvey is heavy during these months, particularly in December, with an average of 4.84" (123mm). Accompanied by short daylight hours and limited sunshine, winter renders Harvey an icy canvas.

Weather in January

January flows in the wave of cold weather in Harvey, North Dakota, with snowfall being prevalent in this month. Compared to February, the icy temperatures remain steady, nearly constant, on the lower side. Daylight is the least in the year, rendering January as one of the darker months. Weather in January »

Weather in February

In February, Harvey sees no drastic changes in the chill but the snowfall decreases compared to January. The sun shines a little longer in the day, but it hardly influences the cold weather that February brings along. Freezing conditions remain dominant, reminding us again of the winter season. Weather in February »

Weather in March

When you think of March in Harvey, North Dakota, a vivid contrast springs between the receding winter and the upcoming spring. The weather transition is perhaps most apparent in March, as the winter chill gives way to slightly warmer conditions. Weather in March »

Weather in April

The month of April in Harvey, North Dakota, signals the arrival of the much-awaited spring, fostering growth and rejuvenation all around. An upward transition in temperature can be observed from the preceding month. April brings about a variation of colors back into the city - the undisturbed layer of snow gives way to blooming seasonal flowers. Weather in April »

Weather in May

In Harvey, May experiences the meteorological transition from spring to early summer. The weather during May becomes more pleasant compared to April. There is an increase in daylight hours, allowing more opportunities for outdoor activities. Weather in May »

Weather in June

June announces the onset of summer in Harvey, North Dakota. The harsh and freezing winter seems like a distant memory as temperatures spike from those in May. It's the time when Harvey basks in maximum daylight hours in the year, allowing residents to make the most of the long, sunny days. Weather in June »

Weather in July

July in Harvey, North Dakota, basks under the high summer sun, making it the warmest month of the year. Observing from June, there are no drastic changes in the weather conditions, only the heat seems to be on the rise. The longer days are bright and sunny, inviting the residents to enjoy outdoor activities to the fullest. Weather in July »

Weather in August

August in Harvey, North Dakota, indicates the culmination of summer with conditions moderately similar to July. There's a slight decrease in temperature compared to July, making the weather more comfortable towards the month's end. Weather in August »

Weather in September

September brings a whiff of fall to Harvey, North Dakota. The weather becomes a blend of mildly warm afternoons and cool evenings, a shift from August's consistent warmth. The daylight hours start to reduce gradually, and humidity levels drop, leading to clearer skies. Weather in September »

Weather in October

October in Harvey hails the full onset of fall. It’s a transitional period with the weather conditions contrasting from those in September, and inching closer to the winter chill. The fall colors reach their peak, adorning the city in a picturesque autumn spectrum. Weather in October »

Weather in November

With the arrival of November in Harvey, North Dakota, signals of approaching winter becomes more apparent. The serene and mild fall weather progressively gives way to the harsh winter cold. The greenery and vibrancy of the proceeding months prepare to go dormant. Weather in November »

Weather in December

In Harvey, December welcomes the full-fledged winter season. The chilly weather increases in intensity from November, making it one of the coldest months of the year. The festive spirit blends with the bitter cold outdoors, leading to brighter decorations and warmer hearts indoors. Weather in December »
Updated: Jun 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

January, marked by an average high-temperature of 17.1°F (-8.3°C) and a low-temperature of 3°F (-16.1°C), is the coldest month.

What is the most humid month?

With an average relative humidity of 91%, January is the most humid month.

How much does it rain?

Throughout the year, there are 105.9 rainfall days, and 17.32" (440mm) of precipitation is accumulated.

When does it snow?

January through May, October through December are months with snowfall in Harvey.

How much does it snow?

Throughout the year, there are 77.8 snowfall days, and 24.41" (620mm) of snow is accumulated.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 3.4h of sunshine.

What are the months with the lowest UV index?

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

What is the driest month?

The month with the least rainfall is February, when the rain falls for 2.1 days and typically collects 0.51" (13mm) 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.

What is the wettest month?

June is the month with the most rainfall. Rain falls for 17.3 days and accumulates 3.07" (78mm) of precipitation.

When it does not snow?

In Harvey, snow does not fall in June through September.

When are the longest days?

With an average of 15h and 54min of daylight, June has the longest days of the year.

What time of the year is the hottest in Harvey?

During the warmest month in Harvey, July, temperatures average a high of 80.4°F (26.9°C) and a low of 59.5°F (15.3°C).

What month has the most sunshine?

With an average of 11.1h of sunshine, July has the most sunshine of the year.

What is the month with the highest UV index?

With an average maximum UV index of 6, July is the month with the highest UV index in Harvey.

What is the least humid month?

With an average relative humidity of 57%, August is the least humid month.

When does it snow the most?

December is the month with the most snowfall. Snow falls for 16 days and accumulates 4.84" (123mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 8h and 30min of daylight.

Average pressure
Harvey, ND

Average pressure - Harvey, ND

The month with the highest atmospheric pressure is February (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed
Harvey, ND

Average wind speed - Harvey, ND

The windiest month (with the highest average wind speed) is October (11.5mph).
The calmest month (with the lowest average wind speed) is August (8.8mph).

Average humidity
Harvey, ND

Average humidity - Harvey, ND

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (57%).

Average rainfall
Harvey, ND

Average rainfall - Harvey, ND

The wettest month (with the highest rainfall) is June (3.07").
The driest month (with the least rainfall) is February (0.51").

Average rainfall days
Harvey, ND

Average rainfall days - Harvey, ND

The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (2.1 days).

Average snowfall
Harvey, ND

Average snowfall - Harvey, ND

The month with the highest snowfall is December (4.84").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Harvey, ND

Average snowfall days - Harvey, ND

The month with the highest number of snowfall days is December (16 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine
Harvey, ND

Average daylight / Average sunshine - Harvey, ND

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

Average sunshine days
Harvey, ND

Average sunshine days - Harvey, ND

The month with the most sunshine days is September (18 days).
The month with the least sunshine days is June (9.8 days).

Average visibility
Harvey, ND

Average visibility - Harvey, ND

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

Harvey, North Dakota, USA

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