Climate and monthly weather forecast
Hayden, ID

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The climate of Hayden

Situated in the northern part of Idaho, USA, Hayden experiences a Mediterranean climate, commonly defined as warm summer, also known as Csb according to the Köppen climate classification. This distinct weather pattern registers considerable variations in each of its climatological parameters throughout the year. Benchmarking the temperature, January starts off with a low of 21.6°F (-5.8°C) and only reaches a high of 32.7°F (0.4°C); then steadily increases until July and August where it hits its peak between 81.9°F (27.7°C) and 82°F (27.8°C) and then drops in the subsequent months to be back where it was in December at around a maximum of 31.3°F (-0.4°C) and a minimum of 21.2°F (-6°C).

As far as precipitation is concerned, Hayden gets an annual average rainfall between 3.27" (83mm) in January and drops to 0.43" (11mm) during July and August, then increases towards the year end with December getting around 3.15" (80mm). Correspondingly, the number of rainy days also sees its highest in March with 17.5 days and lowest between July and August with 5.6 to 5.8 days. Snowfall, conversely, is maximum during the winter months with December witnessing 13.66" (347mm) over 16.9 days and is essentially absent from May to September.

Relative humidity starts at the highest of 93% in January and gradually lessens to its lowest at 48% in August, before ascending back towards the end of the year to 90% in December. Overall, the town gets 8.5 daylight hours extending up to 15.9 hours from December to June and the bright sunshine varies between 4.4 hours to 11.9 hours from November to August, with the UV Index escalating from 1 to 6 from December to July. Lastly, Hayden has an average visibility of 4 to 6 miles coupled with a wind speed varying from 3.9 to 5mph (8km/h) displaying maximum gusts from 6.5 to 8mph (12.9km/h) across the year.

The best time to visit Hayden

Visitors planning a trip to Hayden must consider the temperate months of May to September, specifically August when the average temperatures sit comfortably within the bracket of 50.5°F (10.3°C) and 82°F (27.8°C). These months also record a decrease in humidity, averaging around 48%, allowing for optimal comfort levels outdoors. It is this juncture of the year that also showcases the least rainfall, 0.43" (11mm) in July and August, and maximum sunshine estimated between 11.7 hours to 11.9 hours in July and August. Hence, the soothing temperatures, clear skies, and minimum precipitation make this time the most opportune to explore Hayden.

The worst time to visit Hayden

On the contrary, the winter months, especially December and January are less suitable for tourists. During this phase, the temperature falls substantially, reaching as low as 21.2°F (-6°C) in December. The town also encounters its maximum snowfall of 13.66" (347mm) in December, that may pull the curtains on outdoor activities. Adding to this, the daylight hours also dip to an annual low of 8.5 hours in December, which may limit sightseeing options.

Spring weather in Hayden

Spring is witnessed from March to May in Hayden, a period when the climate starts to heat up, building up from an average high of 43.2°F (6.2°C) in March to 64.8°F (18.2°C) in May. However, the lowest temperatures fall from 28.2°F (-2.1°C) to 39.6°F (4.2°C) within the same duration. This period also notes a sudden drop in rainfall from 2.68" (68mm) in March to 1.77" (45mm) in May while the number of rainy days also diminish from 17.5 days to 13.3 days. Snowfall is almost negligible, with around 0.08" (2mm) in May.

Summer weather in Hayden

Summer season between June to August presents the highest temperatures, averaging from 70.2°F (21.2°C) in June to 82°F (27.8°C) in August, but records the lowest humidity and rainfall. Rainfall during these months averages to about 0.43" (11mm), with the number of rainy days hitting an annual low of 5.6 to 5.8 days. This period also features the maximum daylight hours of 15.5 to 15.9 hours, allowing visitors to soak in more of the scenic beauty.

Autumn weather in Hayden

During the autumn months of September to November, the temperature continues to recede, falling from an average high of 71.4°F (21.9°C) in September to 40.5°F (4.7°C) in November. Correspondingly, the minimum temperature also drops from 45°F (7.2°C) in September to 28.2°F (-2.1°C) in November. Rainfall tends to increase from 0.79" (20mm) in September to 2.28" (58mm) in November. The number of daylight hours reduces from 12.6 in September to 9.3 in November, with correspondingly shorter sunshine hours, decreasing from 9.8 hours to 4.4 hours within the same period.

Winter weather in Hayden

Winter in Hayden from December to February is characterized by a significant dip in temperature, with the lowest reaching 21.2°F (-6°C) in December while the highest temperature plunges to an average of 31.3°F (-0.4°C) in the same month. This season also experiences the peak snowfall of 13.66" (347mm) in December, reducing considerably to 12.24" (311mm) in February. Daylight hours hit the annual low of 8.5 hours from December to January and increase to 10.3 hours by February, providing limited opportunities for outdoor exploration.

Weather in January

January in Hayden, Idaho brings snowy conditions, icy temperatures, and limited daylight. It is the coldest month, with the mercury going down to 21.6°F (-5.8°C), and the area being blanketed by around 16.57" (421mm) of snowfall. Weather in January »

Weather in February

February witnesses a slight rise in the minimum and maximum temperatures when compared to January. Hayden experiences another round of significant snowfall in February, although the volume drops to 12.24" (311mm). As the sun starts to shine a bit more each day, the frosty landscape starts to thaw, paving the way for spring. Weather in February »

Weather in March

March ushers in the first hint of spring with fewer snowy days and an increased amount of rainfall, amounting to 2.68" (68mm). The monthly temperatures in Hayden, Idaho trend upwards from February's values, marking the end of the icy weather. Weather in March »

Weather in April

As April springs into action, the weather in Hayden, Idaho becomes significantly warmer as difference between highs and lows surges from March figures. With snowfall reducing to a mere 1.61" (41mm), the city transitions into a sunnier and more temperate zone. Weather in April »

Weather in May

In May, Hayden, Idaho experiences a surge in temperature and longer sunlit days. With only a scant amount of snowfall—0.08" (2mm)—the emphasis shifts to rainfall, which slightly decreases to 1.77" (45mm) compared to April. The outdoor activities gain momentum as the surge in temperature is complemented by fewer rainfall days. Weather in May »

Weather in June

June sees a marked change in weather, becoming one of the warmer months in Hayden, Idaho. Rainfall decreases again to 1.54" (39mm), indicating a descending rainfall pattern going into summer. As the snow completely dissolves, daylight extends to peak hours, and cloud cover reduces, hinting at clearer skies. Weather in June »

Weather in July

July, often considered the peak of summer, comes with the highest possible temperatures of the year, soaring up to 81.9°F (27.7°C). The rainfall reaches its lowest point, with a scarce average of 0.43" (11mm), signifying an extremely dry period. Weather in July »

Weather in August

August replicates July's weather patterns with temperatures staying high, maintaining an average high of 82°F (27.8°C). The rainfall, too, remains unchanged at 0.43" (11mm), signifying a continuation of the dry spell. August is essentially a mirror month in terms of weather extending the dry, warm summer well into the year. Weather in August »

Weather in September

September marks a change in the warm season with temperatures starting to slide downwards. The rainfall bumps back up slightly to 0.79" (20mm), signaling the onset of the wetter half of the year. The fall equinox in September results in shorter days and extended nights in Hayden a major shift from the surplus daylight of summer. Weather in September »

Weather in October

October introduces a sharp drop in temperatures and a steep rise in rainfall, increasing to 2.13" (54mm) from September's level. With snowfall of 0.43" (11mm), the month commences with a dip into wintry conditions. Hayden, Idaho welcomes autumn in full zest, with foliage transforming their colors, setting the city alight with warm hues. Weather in October »

Weather in November

As November sets in, the temperature dips further, marking a fast-approaching winter. The city sees an uplift in snowfall to 4.92" (125mm), joining the increased rainfall of 2.28" (58mm). November showcases an increase in humidity, transforming Hayden, Idaho into a damp, chilly environment. Weather in November »

Weather in December

December brings back the winter season in its full glory, with the maximum temperature sliding to a winter low of 31.3°F (-0.4°C). The city grapples with a high volume of snowfall, second only to January's figures, recording 13.66" (347mm). 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 most humid month in Hayden?

January is the most humid month in Hayden, with an average relative humidity of 93%.

What is the wettest month in Hayden?

The month with the most rainfall in Hayden, Idaho, is January, when the rain falls for 11.5 days and typically aggregates up to 3.27" (83mm) of precipitation.

How much does it rain in Hayden?

In Hayden, Idaho, during the entire year, the rain falls for 141.2 days and collects up to 22.6" (574mm) of precipitation.

When does it snow in Hayden?

January through May, September through December are months with snowfall in Hayden, Idaho.

What is the snowiest month in Hayden?

January is the month with the most snowfall. Snow falls for 16.4 days and accumulates 16.57" (421mm) of snow.

How much does it snow in Hayden?

In Hayden, Idaho, during the entire year, snow falls for 71.8 days and aggregates up to 56.54" (1436mm) of snow.

What is the month with the lowest UV index in Hayden?

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

When is Daylight Saving Time (DST) in Hayden?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Hayden, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.

When it does not snow in Hayden?

In Hayden, snow does not fall in June through August.

When are the longest days in Hayden?

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

What is the driest month in Hayden?

July and August are months with the least rain when the rain falls for 5.8 days and typically aggregates up to 0.43" (11mm) of rain.

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

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

What time of the year is the hottest in Hayden?

Temperature records mark August as the warmest month, with highs averaging 82°F (27.8°C) and lows at 51.8°F (11°C).

What is the least humid month in Hayden?

With an average relative humidity of 48%, August is the least humid month.

What month has the most sunshine in Hayden?

August has the most sunshine of the year in Hayden, Idaho, with an average of 11.9h of sunshine.

What part of the year is the coldest in Hayden?

December is the coldest month, with an average high-temperature of 31.3°F (-0.4°C) and an average low-temperature of 21.2°F (-6°C).

What is the month with the shortest days in Hayden?

With an average of 8h and 30min of daylight, December has the shortest days of the year in Hayden.

What is the month with the least sunshine in Hayden?

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

Average temperature
Hayden, ID

Average temperature - Hayden, ID

The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (31.3°F).

The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (21.2°F).

Average pressure
Hayden, ID

Average pressure - Hayden, ID

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

Average wind speed
Hayden, ID

Average wind speed - Hayden, ID

The windiest month (with the highest average wind speed) is April (5mph).
The calmest month (with the lowest average wind speed) is December (3.9mph).

Average humidity
Hayden, ID

Average humidity - Hayden, ID

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (48%).

Average rainfall
Hayden, ID

Average rainfall - Hayden, ID

The wettest month (with the highest rainfall) is January (3.27").
The driest months (with the least rainfall) are July and August (0.43").

Average rainfall days
Hayden, ID

Average rainfall days - Hayden, ID

The month with the highest number of rainy days is March (17.5 days).
The month with the least rainy days is August (5.6 days).

Average snowfall
Hayden, ID

Average snowfall - Hayden, ID

The month with the highest snowfall is January (16.57").
The months with the least snowfall are June, July and August (0").

Average snowfall days
Hayden, ID

Average snowfall days - Hayden, ID

The month with the highest number of snowfall days is December (16.9 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine
Hayden, ID

Average daylight / Average sunshine - Hayden, ID

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 August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).

Average sunshine days
Hayden, ID

Average sunshine days - Hayden, ID

The month with the most sunshine days is July (23.9 days).
The month with the least sunshine days is February (8.6 days).

Average visibility
Hayden, ID

Average visibility - Hayden, ID

The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).

Hayden, Idaho, USA

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