Climate and monthly weather forecast
Twisp, WA


The climate of Twisp

The overall climate of Twisp, Washington, USA is primarily characterized by the Köppen climate classification Dsb, which signifies a 'Humid Continental, dry warm summer', indicating experience of four distinct seasons - moderately hot summers, cold winters, with intermediate springs and autumns. This versatile climate makes Twisp an interesting subject for weather analysis throughout the year.

Tracking the monthly average weather data, several key trends emerge, specifically dealing with temperature, precipitation, and daylight hours. Temperature highs range from a chilly 29.3°F (-1.5°C) in January to a warm 76.8°F (24.9°C) in August. Concurrently, the lows can plunge to 14.7°F (-9.6°C) in December, or rise to a much more comfortable 48.9°F (9.4°C) in August. The humidity levels also fluctuate considerably across the year, peaking at 92% in the colder months of January and February, and dipping to around 51% in the somewhat dryer months of July and August.

Additionally, rainfall is fairly well distributed throughout the year with a high of 2.52" (64mm) in December and lows around 0.35" (9mm) in July. Twisp experiences prolific snowfall during the winter months, reaching its zenith of 12.28" (312mm) in December. The most sunshine hours are in June (16 hours), contrasted with the fewest in December (8.4 hours). Notable is the fluctuation in wind speeds, ranging from 3.5mph (5.6km/h) in January to a marginally faster 5.1mph (8.2km/h) in July.

Remarkably, Twisp experiences a pattern of significant changes in sunshine hours, with spring and autumn experiencing moderate hours, while summer enjoys longest days. Conversely, winter is characterised by short daylight hours and significant snowfall.

The best time to visit Twisp

From the presented climatological data, it is apparent that the optimal time to visit Twisp would be from June to August. During these summer months, Twisp experiences the highest temperature averages ranging from 66.2°F (19°C) to 76.8°F (24.9°C). This period also coincides with the lowest precipitation averages ranging from 0.35" (9mm) to 1.14" (29mm). Furthermore, days are longer, with an average daylight span ranging from 15.3 hours to 16 hours. These factors combined make this period perfect for outdoor activities and exploring the natural beauty of Twisp.

The worst time to visit Twisp

However, not all months are as hospitable in Twisp. The period from December to February is particularly harsh. Temperatures during this winter span hit their lowest point between 14.7°F (-9.6°C) and 14.9°F (-9.5°C). Additionally, December sees the highest precipitation with a rainfall average of 2.52" (64mm), and an overriding snowfall amount reaching a major 12.28" (312mm). Short daylight hours and the highest relative humidity levels also add to the inclemency of this period. Travel during this time should be avoided, unless specifically for winter activities such as skiing.

Spring weather in Twisp

In contrast to the chilling winters, the spring season in Twisp, specifically from March to May, sees a gradual warming trend. Average high temperatures rise from 37.6°F (3.1°C) to 59.4°F (15.2°C) and lows upsurge from 20.7°F (-6.3°C) to 36.7°F (2.6°C). Rainfall during these months ranges from 1.14" (29mm) to 2.24" (57mm) and snowfall is largely limited to March. The spring season experiences a moderate number of daylight hours with a steady increase, reminding us of the impending summer.

Summer weather in Twisp

The summer months from June to August unveil the best Twisp has to offer weather-wise. Average high temperatures rise to a comfortable peak of 76.8°F (24.9°C). The humidity levels drop to their yearly low, ushering in a dry warm summer climate. Rainfall averages are the lowest during these months, enabling maximum outdoor exploration. Longer daylight hours up to 16 hours add to the charm of Twisp summers, making it the preferred time to visit.

Autumn weather in Twisp

Succeeding the warmth of summer, autumn, from September to November, brings a cooling trend. Temperatures begin their descent from a high of 65.3°F (18.5°C) in September to a considerably lower 35.8°F (2.1°C) by November. Rainfall begins to increase from 0.94" (24mm) to 2.05" (52mm), and snowfall makes its reappearance by November. Additionally, daylight hours start declining indicating the onset of winter

Winter weather in Twisp

Combating the harshest weather conditions, winter in Twisp from December to February, is recognized by significantly cold weather. Accompanying low temperatures, humidity peaks at 92% creating a severely cold feeling. Rainfall reaches its highest in December and snowfall is abundant during these months, reaching up to 12.28" (312mm) in December. Daylight hours are the shortest, winding down to a scanty 8.4 hours.

Weather in January

The start of the year in Twisp, Washington brings cold and moist conditions, typical of winter weather in this region. With the highest average relative humidity at 92% coupled with low temperatures, ranging from 14.9°F (-9.5°C) to 29.3°F (-1.5°C), it's not uncommon to observe frosty scenes in daily life. Weather in January »

Weather in February

Paying heed to the calendar, February highlights a slight but appreciable respite from the extreme cold experienced in January. A marginal rise in temperature serves to make the weather slightly less cold, but winter gear remains necessary. Weather in February »

Weather in March

March in Twisp, Washington signifies the transition from biting winter to milder spring temperatures, and the city gradually unfurls from its frosty white blanket. The average daily temperature sees a jump of nearly 7 degrees from February, hovering between 20.7°F (-6.3°C) and 37.6°F (3.1°C), indicative of the moderating weather. Weather in March »

Weather in April

April sees Twisp shedding the remaining vestiges of winter and fully embracing spring. The warming trend continues from March, presenting locals and tourists with comfortable temperatures for outdoor pursuits. Rainfall characteristic of spring season sprinkles the city, fostering the growth of local flora and enhancing the city’s natural charm. Weather in April »

Weather in May

The maturing spring in May marks noticeable changes in the weather patterns in Twisp, Washington. As the last of the spring rains fall, days become progressively drier and warmer compared to April. With average temperatures reaching between 36.7°F (2.6°C) and 59.4°F (15.2°C), outdoor activities flourish providing a boost to local tourism. Weather in May »

Weather in June

June represents the onset of summer, introducing a new phase in weather conditions in Twisp, Washington. While the heat gradually rises, it juxtaposes the lush greenery generously watered by the spring rains. Compared to May, a significant increase in daily sunshine hours from 10.8 hours to 11.4 hours allows for longer daytime activities. Weather in June »

Weather in July

July in Twisp is synonymous with peak summer, portraying the warmest climate of the year with highs at 76.3°F (24.6°C). Sunshine numbers make a jump to their annual maximum and relative humidity drops to its lowest in the year at 51%, marking the driest month. Weather in July »

Weather in August

August in Twisp mimics the weather pattern of July closely, albeit with a slightly higher average high temperature. August’s warmer days attract scores of locals and tourists alike to the city’s numerous aquatic attractions and parks. Weather in August »

Weather in September

September in Twisp, Washington represents a shift in seasons, from warm summer to cooler fall, reflecting a pleasant mix of lingering summer warmth and incoming autumnal chill. Following the peak of summer temperatures in August, September offers a relief with a significant drop in average maximum temperature to 65.3°F (18.5°C). Weather in September »

Weather in October

October ushers in a distinct autumn character in Twisp’s weather pattern. With the warmth of summer ebbing away, daytime temperatures become increasingly comfortable and the falling leaves paint a myriad of colors across the cityscape. Weather in October »

Weather in November

In November, Twisp inches steadily towards its winter phase, with temperatures tapering off considerably and the onset of increased precipitation levels. The characteristic chill of winter starts setting in, with temperatures registering a significant drop from 50.2°F (10.1°C) in October to 35.8°F (2.1°C) in November. Weather in November »

Weather in December

December signifies the return of winter in full sway to Twisp, Washington, denoted by freezing temperatures and increased snowfall. December’s mean temperature arrives at cold 27.9°F (-2.3°C) while at the same time the city witnesses an average snowfall of 12.28" (312mm). Weather in December »

Frequently asked questions

What is the most humid month?

January and February, with an average relative humidity of 92%, are most humid months.

How many days does it rain in Twisp?

Throughout the year, there are 141.4 rainfall days, and 18.07" (459mm) of precipitation is accumulated.

When does it snow?

January through April, September through December are months with snowfall in Twisp.

How many days does it snow?

In Twisp, during the entire year, snow falls for 64.4 days and aggregates up to 42.6" (1082mm) of snow.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 4.2h of sunshine.

What is the month with the lowest UV index?

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

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 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?

May through August are months without snowfall in Twisp.

When are the longest days?

The month with the longest days is June, with an average of 16h and 0min of daylight.

What is the least humid month in Twisp?

The months with the lowest humidity in Twisp are July and August, with an average relative humidity of 51%.

What is the driest month?

July is the month with the least rainfall. Rain falls for 7.4 days and accumulates 0.35" (9mm) of precipitation.

What is the month with the most sunshine?

July and August, with an average of 11.9h of sunshine, are months with the most sunshine.

What is the month with the highest UV index?

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

What is the warmest month?

August is the month when Twisp's temperatures reach their peak, with averages of 76.8°F (24.9°C) and lows of 48.9°F (9.4°C).

What is the coldest month?

Twisp reaches its average lowest temperatures in December, measuring 27.9°F (-2.3°C) at the peak and 14.7°F (-9.6°C) at the lowest.

What is the wettest month?

December is the month with the most rainfall in Twisp. Rain falls for 10.2 days and accumulates 2.52" (64mm) of precipitation.

When does it snow the most?

The month with the most snowfall is December, when snow falls for 15.5 days and typically aggregates up to 12.28" (312mm) of snow.

What is the month with the shortest days?

With an average of 8h and 24min of daylight, December has the shortest days of the year.

Average temperature
Twisp, WA

Average temperature - Twisp, WA

The warmest month (with the highest average high temperature) is August (76.8°F).
The month with the lowest average high temperature is December (27.9°F).

The month with the highest average low temperature is August (48.9°F).
The coldest month (with the lowest average low temperature) is December (14.7°F).

Average pressure
Twisp, WA

Average pressure - Twisp, WA

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.94"Hg).

Average wind speed
Twisp, WA

Average wind speed - Twisp, WA

The windiest month (with the highest average wind speed) is July (5.1mph).
The calmest months (with the lowest average wind speed) are January and December (3.5mph).

Average humidity
Twisp, WA

Average humidity - Twisp, WA

The months with the highest relative humidity are January and February (92%).
The months with the lowest relative humidity are July and August (51%).

Average rainfall
Twisp, WA

Average rainfall - Twisp, WA

The wettest month (with the highest rainfall) is December (2.52").
The driest month (with the least rainfall) is July (0.35").

Average rainfall days
Twisp, WA

Average rainfall days - Twisp, WA

The month with the highest number of rainy days is March (17.1 days).
The month with the least rainy days is August (5.7 days).

Average snowfall
Twisp, WA

Average snowfall - Twisp, WA

The month with the highest snowfall is December (12.28").
The months with the least snowfall are May, June, July and August (0").

Average snowfall days
Twisp, WA

Average snowfall days - Twisp, WA

The month with the highest number of snowfall days is December (15.5 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine
Twisp, WA

Average daylight / Average sunshine - Twisp, WA

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days
Twisp, WA

Average sunshine days - Twisp, WA

The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is March (8.9 days).

Average visibility
Twisp, WA

Average visibility - Twisp, WA

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

Twisp, Washington, USA

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