Climate and monthly weather forecastCle Elum, WA
Climate and monthly weather forecast
The climate of Cle Elum
Transpiring in the northern hemisphere, Cle Elum, Washington in the USA, is located in a region characterized by a Mediterranean climate with warm summers (Csb) according to Köppen climate classification. The region experiences a wide variance in weather conditions, ranging from cold winters characterized by snowfall, to warm, sun-drenched summers.An yearly average temperature ranges from a minimum of 18.3°F (-7.6°C) in winter to as high as 75.4°F (24.1°C) in summer. Once the warmth of summer dissipates, temperatures gradually decline, plunging to their lowest values in December and January. Relative humidity remains high throughout the year, averaging around 68% during summer and peaking to 92% in winter.
Precipitation is observed in various forms across the year, with rainfall prevalent for most of the year, while snow takes center stage during the winter months. Rainfall fluctuates, dipping to a low of 0.39" (10mm) in July, and soaring to a high of 4.41" (112mm) in January. Snowfall predominates from December 15.24" (387mm) to March 8.15" (207mm), but it is virtually non-existent from May to October. The city also enjoys ample hours of sunshine all year round, with up to 11.9 hours in July and a little less in winter averaging around 3.4 hours in January.
The best time to visit Cle Elum
Looking at the multitude of climatic parameters, summer stands out as the ideal time to visit Cle Elum, predominantly from June to August. During these months, the city is bathed in warmth reaching up to a comfortable 75.4°F (24.1°C), complemented by a palpable reduction in rainfall to 0.39" (10mm) in July and 0.51" (13mm) in August. Apart from this, one can enjoy extended daylight hours averaging 15.5 hours in June, which is highest in the year. Perfect for outdoor activities, these months see the UV index hitting 5, making sun protection important for potential visitors.The worst time to visit Cle Elum
The onset of winter, specifically the months spanning from December to February, represent a less attractive period for visitors. Minimum temperatures descend to their lowest, registering at 18.3°F (-7.6°C) in December, posing a harsh climate for many. In addition to the cold weather, these months receive the maximum recorded snowfall, peaking at 15.24" (387mm) in December. The combination of shorter days, less sunshine, and high probabilities of snowfall can impede many outdoor activities.Spring weather in Cle Elum
The arrival of spring witnesses a gradual upward shift in temperatures, with average highs ranging from 37.6°F (3.1°C) in March to 57.7°F (14.3°C) in May. Coupled with longer hours of daylight, this season paints a picture of mild warmth and increased visibility. Despite the general increase in temperature, spring also sees a notable level of precipitation, with rainfall averaging 1.93" (49mm) in April.Summer weather in Cle Elum
Summers in Cle Elum are marked by mild, pleasant warmth, manifesting in an increase in average temperatures from 64°F (17.8°C) in June to a peak of 75.4°F (24.1°C) in August. Despite the increase in heat, rainfall markedly decreases to its lowest level of the year at 0.39" (10mm) in July. The duration of daylight extends to a peak of 15.9 hours in June, with healthy sunshine hours of approximately 11.8 hours in July.Autumn weather in Cle Elum
Autumn is demarcated by declining temperatures, with average highs oscillating from 64.6°F (18.1°C) in September down to 37.6°F (3.1°C) by November. Rainfall exhibits an ascendant trajectory, expanding from 1.1" (28mm) in September to 3.03" (77mm) in November. Daylight hours begin to shrink in autumn, from 12.5 hours in September to 9.4 hours by November.Winter weather in Cle Elum
Winter in Cle Elum is characterized by a significant drop in temperature, with average highs descending to 29.7°F (-1.3°C) in December. Correspondingly, winter months record the highest amount of snowfall with the zenith being 15.24" (387mm) in December. Harsh weather conditions, shorter daylight hours reaching 8.6 hours in December, and a reduced visibility makes this season quite challenging.Weather in January
Located in Cle Elum, Washington, January frequently experiences chilly temperatures. The setting is a blend of snow-capped surroundings and frosty air, with heaters being a not uncommon requirement to tackle the cold. During this time, a thick blanket of snow amounts from 15.24" (387mm) to 16.3" (414mm) could be witnessed. Weather in January »Weather in February
Despite the progressive change from January to February, Cle Elum continues to wrap itself in winter's icy cloak. Outdoor adventurers must exhibit caution as the city witnesses a decrease in snowfall. Traffic clogs due to flurries are not unusual but generally less than in the prior month. Weather in February »Weather in March
March signifies the onset of transitional weather in Cle Elum, sprinkling hints of thawing ice and emerging greenery. The intense cold begins to recede, replaced with a relatively warmer environment. Daylight hours increase while milder rainfall averages from 3.23" (82mm) to 3.94" (100mm) replace the earlier heavy snowfall. Weather in March »Weather in April
Cle Elum turns a new leaf in April, making a clear leap from winter into the inviting arms of spring. The frigid weather bows out, yielding to warmer temperatures and extended daylight hours. The period of April presents an appealing time to explore the city as it blooms in vivid color, though carrying an umbrella is advisable during its rather rainy days. Weather in April »Weather in May
Cle Elum paints a picture of pleasantness and bloom with the arrival of May. Increased sunshine, decreased rainfall, and a more temperate climate signal the full bloom of spring. The volumes of snowfall and rainfall recorded in previous months decline substantially. Weather in May »Weather in June
June ushers in the beginning of summer in Cle Elum. The city comes alive under the blaze of the sun, marking the onset of the sunniest season. It's the ideal time to participate in water activities and hiking trails thanks to decent temperatures and minimal rainfall. Weather in June »Weather in July
Experiencing the warmest month of the year, July experiences the highest Cle Elum temperatures fluctuating from 74.8°F (23.8°C) to 75.4°F (24.1°C). Summer is in full swing, making it an excellent time for water sports and outdoor festivals. Weather in July »Weather in August
Being akin to July, August continues to treat Cle Elum with summertime heat and sunshine. The city continues to bask in the sun's glow, with infrequent showers that provide the much-needed respite. Lengthy daylight and warm temperatures are an open invitation to explore the city and its attractions. Weather in August »Weather in September
Cle Elum welcomes fall in September, as the city transitions from summer to the arrival of cooler days. September is an ideal time to visit Cle Elum, as it typically sees decreased temperatures and less rainfall. However, the occasional rainfall seen from 1.1" (28mm) to 2.87" (73mm) is a gentle reminder of the changing seasons. Weather in September »Weather in October
With fall in full swing in October, Cle Elum exudes an earthy glow due to the transformation of foliage. Declining daylight hours and lowering temperatures point to the impending winter. Crisp, cool air coupled with vibrant hues of yellow and red embracing the city define the October weather in Cle Elum. Weather in October »Weather in November
Winter begins to creep back into Cle Elum during November. There's a marked decrease in temperature and daylight hours as compared with the past couple of months. However, an increase in rainfall can be observed from 3.03" (77mm) to 4.17" (106mm), symbolic of the approaching cold. Weather in November »Weather in December
In December, winter is in full command of Cle Elum, with temperatures nearing the year's lowest. The white landscape with freshly fallen snow provides beautiful vistas for residents and visitors alike. With the increase in snowfall days, snowy activities become prevalent. Weather in December »Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January and February, with an average relative humidity of 92%, are most humid months in Cle Elum, Washington.
The month with the most rainfall is January, when the rain falls for 14.2 days and typically aggregates up to 4.41" (112mm) of precipitation.
Throughout the year, there are 161.2 rainfall days, and 28.46" (723mm) of precipitation is accumulated.
January through May, September through December are months with snowfall in Cle Elum, Washington.
January is the month with the most snowfall. Snow falls for 13.8 days and accumulates 16.3" (414mm) of snow.
Throughout the year, in Cle Elum, Washington, there are 69.9 snowfall days, and 60.24" (1530mm) of snow is accumulated.
With an average of 3.4h of sunshine, January has the least sunshine of the year.
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Cle Elum, Washington.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Cle Elum, 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.
In Cle Elum, Washington, snow does not fall in June through August.
With an average of 15h and 54min of daylight, June has the longest days of the year.
July and August, with an average relative humidity of 60%, are the least humid months.
July is the month with the least rainfall in Cle Elum. Rain falls for 7 days and accumulates 0.39" (10mm) of precipitation.
July is the month with the highest UV index, with an average maximum UV index of 5.
August is the month when Cle Elum sees the average highest temperatures, with a high of 75.4°F (24.1°C) and a low of 47.8°F (8.8°C).
With an average of 11.9h of sunshine, August has the most sunshine of the year in Cle Elum, Washington.
Cle Elum, Washington, notes the coldest temperatures in December, with a average high of 29.7°F (-1.3°C) and a low of 18.3°F (-7.6°C).
The month with the shortest days in Cle Elum, Washington, is December, with an average of 8h and 36min of daylight.
Average temperature
Cle Elum, WA
The warmest month (with the highest average high temperature) is August (75.4°F).
The month with the lowest average high temperature is December (29.7°F).
The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is December (18.3°F).
Average pressure
Cle Elum, WA
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
30.02"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.97"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed
Cle Elum, WA
- Average wind speed in January:
4.5mph - Average wind speed in February:
4.7mph - Average wind speed in March:
5mph - Average wind speed in April:
5.8mph - Average wind speed in May:
5.8mph - Average wind speed in June:
6.7mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.1mph - Average wind speed in September:
5.3mph - Average wind speed in October:
4.6mph - Average wind speed in November:
4.5mph - Average wind speed in December:
4.2mph
The windiest month (with the highest average wind speed) is June (6.7mph).
The calmest month (with the lowest average wind speed) is December (4.2mph).
Average humidity
Cle Elum, WA
The months with the highest relative humidity are January and February (92%).
The months with the lowest relative humidity are July and August (60%).
Average rainfall
Cle Elum, WA
- Average rainfall in January:
4.41" - Average rainfall in February:
3.94" - Average rainfall in March:
3.23" - Average rainfall in April:
1.93" - Average rainfall in May:
1.81" - Average rainfall in June:
1.06"
- Average rainfall in July:
0.39" - Average rainfall in August:
0.51" - Average rainfall in September:
1.1" - Average rainfall in October:
2.87" - Average rainfall in November:
3.03" - Average rainfall in December:
4.17"
The wettest month (with the highest rainfall) is January (4.41").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days
Cle Elum, WA
- Average rainfall days in January:
14.2 days - Average rainfall days in February:
13.6 days - Average rainfall days in March:
18.3 days - Average rainfall days in April:
18.3 days - Average rainfall days in May:
16.1 days - Average rainfall days in June:
11.7 days
- Average rainfall days in July:
7 days - Average rainfall days in August:
5.5 days - Average rainfall days in September:
10.7 days - Average rainfall days in October:
15.7 days - Average rainfall days in November:
18 days - Average rainfall days in December:
12.1 days
The months with the highest number of rainy days are March and April (18.3 days).
The month with the least rainy days is August (5.5 days).
Average snowfall
Cle Elum, WA
- Average snowfall in January:
16.3" - Average snowfall in February:
13.35" - Average snowfall in March:
8.15" - Average snowfall in April:
1.97" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is January (16.3").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Cle Elum, WA
- Average snowfall days in January:
13.8 days - Average snowfall days in February:
14.3 days - Average snowfall days in March:
12.8 days - Average snowfall days in April:
5.3 days - Average snowfall days in May:
0.3 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.2 days - Average snowfall days in October:
0.6 days - Average snowfall days in November:
7.5 days - Average snowfall days in December:
15.1 days
The month with the highest number of snowfall days is December (15.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Cle Elum, WA
- Average daylight in January:
9h and 0min - Average daylight in February:
10h and 18min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 42min - Average daylight in May:
15h and 6min - Average daylight in June:
15h and 54min
- Average daylight in July:
15h and 30min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 18min - Average daylight in December:
8h and 36min
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 36min).
- Average sunshine in January:
3h and 24min - Average sunshine in February:
3h and 54min - Average sunshine in March:
5h and 54min - Average sunshine in April:
9h and 12min - Average sunshine in May:
10h and 18min - Average sunshine in June:
11h and 12min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
11h and 54min - Average sunshine in September:
10h and 12min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 0min - Average sunshine in December:
3h and 42min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days
Cle Elum, WA
- Average sunshine days in January:
9.9 days - Average sunshine days in February:
6.8 days - Average sunshine days in March:
7.7 days - Average sunshine days in April:
8.5 days - Average sunshine days in May:
12.2 days - Average sunshine days in June:
14.3 days
- Average sunshine days in July:
21.9 days - Average sunshine days in August:
22.8 days - Average sunshine days in September:
16.3 days - Average sunshine days in October:
13.8 days - Average sunshine days in November:
8.7 days - Average sunshine days in December:
10.2 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (6.8 days).
Average UV index
Cle Elum, WA
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Cle Elum, WA
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 18).
Average visibility
Cle Elum, WA
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (3mi).
