Climate and monthly weather forecastKirkland, WA
Climate and monthly weather forecast
The climate of Kirkland
Classified within the Köppen climate system as a Mediterranean, warm summer climate (Csb), Kirkland, Washington is geographically positioned in the northwestern United States. The region experiences a climate characterized by warm, dry summers and mild winters with heavier rainfall.Throughout the course of a year, temperatures vary significantly from a high of 75.9°F (24.4°C) in August down to a low of 34.7°F (1.5°C) in December. It indicates a substantial range of change, reflecting the transition between the warm and colder months.
With regard to precipitation, the town receives an annual average of more than 26" (660mm) of rainfall. December stands as the wettest month, with an average of 4.21" (107mm) of rain. However, the dry period between July and August is a deviation, as these summertime months see less than an inch of rain with 0.43" (11mm) in July and 0.55" (14mm) in August. Humidity, too, fluctuates throughout the year, peaking at 85% in January and dipping to 70% in July.
It should be noted that snowfall in Kirkland is a relatively rare occurrence. Only in the colder months from December to February does this phenomenon present itself, although it remains exceedingly minimal with measurements not exceeding 2.95" (75mm) in February.
The best time to visit Kirkland
From a meteorological standpoint, the best time to visit Kirkland, factoring in weather comfortability and outdoor activity possibilities, lies within the summer months. This period from June to early September sees the warmest temperatures, averaging between 64.2°F (17.9°C) to 75.9°F (24.4°C) with high rising up to 68.5°F (20.3°C) in June and 75.2°F (24°C) in July.Simultaneously, the probability of rainfall is at its least during these months. The least turbulence in wind velocity is also observed during these months, making it all the more favorable for recreational activities. The comfortable warmth, reduced rainfall, and calm wind are accompanied by an abundance of sunlight, with daylight hours reaching a maximum of 15.9 hours in June. Such conditions are perfect for those looking to partake in outdoor activities such as hiking, biking, or simply exploring the city's scenery.
The worst time to visit Kirkland
The relatively colder months of December to February can be considered less favorable for travelers visiting Kirkland. The average high temperatures hover between 42.8°F (6°C) and 46°F (7.8°C) while the low can drop to 34.7°F (1.5°C) in December. These lower temperatures coupled with increased precipitation, particularly noteworthy in December with a high of 4.21" (107mm), could make outdoor activities less appealing. Additionally, daylight hours decrease significantly to as low as 8.5 hours in December, reducing the timeframe for outdoor exploration.Spring weather in Kirkland
Spring in Kirkland, occurring from March to May, witnesses changes as the season transitions from the colder months to the warmer ones. Temperature highs range from 50.4°F (10.2°C) to 64.2°F (17.9°C), while the lows lie between 37°F (2.8°C) and 44.2°F (6.8°C).Rainfall eases off a bit with April seeing only 2.4" (61mm) compared to 3.07" (78mm) in March. May typically receives the least rain with 1.54" (39mm). Humidity levels relax gradually from 83% in March, 79% in April, down to 75% in May. Daylight hours extend progressively, encouraging sightseeing and other outdoor activities.
Summer weather in Kirkland
Summer, spanning from June to August, offers abundant warmth and sunshine in Kirkland. High temperatures range from 68.5°F (20.3°C) to 75.9°F (24.4°C), while low temperatures fall between 47.8°F (8.8°C) and 53.2°F (11.8°C). The precipitation measurements drop significantly to less than an inch in both July and August.Sunshine duration reaches a peak of 10.7 hours in August. Humidity remains fairly constant but comfortably low, ranging from 74% to 70%. Summers also coincide with the least wind turbulence, giving way to calm, enjoyable weather to indulge in outdoor leisure activities.
Autumn weather in Kirkland
Autumn, running from September to November, brings about a gradual drop in temperatures and an increase in precipitation. High temperatures fall from 69.3°F (20.7°C) in September, 58.5°F (14.7°C) in October, to 48.6°F (9.2°C) in November.Rainfall starts to ascend, with November's average being 3.86" (98mm). Humidity levels rise slowly over these months from 75% in September to 84% in November. The amount of daily sunlight hours decreases, making the days progressively shorter and cooler.
Winter weather in Kirkland
Winter months, from December to February, are the coldest with high temperatures averaging from 42.8°F (6°C) to 46°F (7.8°C), and lows plummeting down to 34.7°F (1.5°C) in December. It witnesses the peak of precipitation, with December exemplifying the highest amount of rainfall at 4.21" (107mm).Kirkland sees its share of snowfall during these months, recording 2.95" (75mm) in February. Although the amount of snowfall remains negligible, it's worth considering when planning outdoor activities. The winter months also bring with them the shortest daylight durations and reduced visibility.
Weather in January
Settling into the New Year, weather in Kirkland takes a somewhat chilly turn with the lowest recorded temperature dropping to 35.8°F (2.1°C). This is relatively low in comparison to the remaining months. The period witnesses high humidity, still abundant rainfall and moments of lower visibility. Weather in January »Weather in February
The weather in February initiates a slightly warmer trend in Kirkland, with the highest temperature reaching 46°F (7.8°C). February affords the year's heaviest snowfall with 2.95" (75mm) settling on the city. As the last full month of winter, it mirrors January with its high humidity and precipitation. Weather in February »Weather in March
Signifying the beginning of spring, March in Kirkland brings subtle changes to the weather. The temperature continues to rise, establishing a pleasant atmosphere suitable for outdoor activities. This anomaly continues as March consistently exhibits the highest number of rainfall days annually at 19.9. Weather in March »Weather in April
April weather not only heralds clearer skies in Kirkland but also a significant decrease in rainfall. The temperature sustains a steady climb, making it more comfortable than the previous months. As the last snow flurries leave the city, the landscape starts to transform. Weather in April »Weather in May
The climate in May brings Kirkland's spring season to life with longer days of sunshine. A decline in rain and humidity yield drier and copious sunny days, perfect for outdoor leisure. As May proceeds, temperature readings continue to scale up, indicating the onset of summer. Weather in May »Weather in June
June in Kirkland signifies the official commencement of summer, with the city bathed in extended sunlight. The temperature pushes up reaching the season's initial peak, coupled with reduced rainfall and humidity. This month experiences the lengthiest duration of daylight in the year, paving the way for warming trends. Weather in June »Weather in July
July reigns as the warmest month in Kirkland with temperatures peaking at 75.2°F (24°C). The weather showcases typical summer characteristics - warmth, longer daylight hours, and lesser precipitation. July stands out with the least rainfall of the year at 0.43" (11mm), reflecting the full swing of summer. Weather in July »Weather in August
As the calendar turns to August, Kirkland basks in the final full summer month with temperatures matching July’s highs. Despite the apex heat, August proceeds with controlled humidity and balanced pressure. Prolonged sunlit days and minimal rainfall preserves outdoor enthusiasts' interest. Weather in August »Weather in September
September marks an emphatic shift towards autumn with a notable dip in temperature from the summer livelihood. Specific climatic patterns mimic August, with a steady decline in warmth observed as the month progresses. Although summer relinquishes its hold, September continues to benefit from long hours of daylight and warm weather. Weather in September »Weather in October
In October, Kirkland witnesses evident signs of autumn with temperatures further retreating from summer highs. Sporadic rainfall begins to pick up pace, preparing for the upcoming wetter months. Autumn leaves blanket the city, enhancing the scenic beauty manifold. Weather in October »Weather in November
November's weather in Kirkland paints a vivid picture of late autumn moving into early winter. The temperature dips noticeably with rainfall demonstrating a substantial increase. With weather conditions steadily changing, residents gear up for the winter months ahead. Weather in November »Weather in December
The end of the year sees Kirkland embracing the winter with colder temperatures and an uptick in precipitation. December brings the return of snow, albeit in smaller amounts than earlier in the year. The city becomes a winter wonderland with frequent snow showers adorning the landscape. Weather in December »Updated: Aug 9, 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 is the most humid month, with an average relative humidity of 85%.
In Kirkland, during the entire year, the rain falls for 175.1 days and collects up to 28.58" (726mm) of precipitation.
Months with snowfall are January through April, November and December.
Throughout the year, there are 10.2 snowfall days, and 5.63" (143mm) of snow is accumulated.
January and December, with an average of 4.4h of sunshine, are months with the least sunshine.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
The month with the most snowfall is February, when snow falls for 3.9 days and typically aggregates up to 2.95" (75mm) of snow.
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.
In Kirkland, snow does not fall in May through October.
The month with the longest days is June, with an average of 15h and 54min of daylight.
With an average relative humidity of 70%, July is the least humid month.
The month with the least rainfall is July, when the rain falls for 7.8 days and typically collects 0.43" (11mm) of precipitation.
With an average maximum UV index of 5, July is the month with the highest UV index.
In Kirkland, August registers the highest temperatures, averaging 75.9°F (24.4°C) at the peak and 53.2°F (11.8°C) at the lowest.
The month with the most sunshine is August, with an average of 10.7h of sunshine.
Kirkland's coldest month, December, generally records average temperatures ranging from a high of 42.8°F (6°C) to a low of 34.7°F (1.5°C).
December is the month with the most rainfall in Kirkland. Rain falls for 18.6 days and accumulates 4.21" (107mm) of precipitation.
The month with the shortest days is December, with an average of 8h and 30min of daylight.
Average temperature
Kirkland, WA
The warmest month (with the highest average high temperature) is August (75.9°F).
The month with the lowest average high temperature is December (42.8°F).
The month with the highest average low temperature is August (53.2°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).
Average pressure
Kirkland, WA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
30.04"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
30.02"Hg
- Average pressure in July:
30.03"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.04"Hg - Average pressure in December:
30.08"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed
Kirkland, WA
- Average wind speed in January:
5.2mph - Average wind speed in February:
4.8mph - Average wind speed in March:
5.2mph - Average wind speed in April:
4.6mph - Average wind speed in May:
3.9mph - Average wind speed in June:
3.7mph
- Average wind speed in July:
3.5mph - Average wind speed in August:
3.4mph - Average wind speed in September:
3.8mph - Average wind speed in October:
4.3mph - Average wind speed in November:
5.1mph - Average wind speed in December:
4.8mph
The windiest months (with the highest average wind speed) are January and March (5.2mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity
Kirkland, WA
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (70%).
Average rainfall
Kirkland, WA
- Average rainfall in January:
3.98" - Average rainfall in February:
3.15" - Average rainfall in March:
3.07" - Average rainfall in April:
2.4" - Average rainfall in May:
1.54" - Average rainfall in June:
1.1"
- Average rainfall in July:
0.43" - Average rainfall in August:
0.55" - Average rainfall in September:
1.3" - Average rainfall in October:
2.99" - Average rainfall in November:
3.86" - Average rainfall in December:
4.21"
The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days
Kirkland, WA
- Average rainfall days in January:
17.6 days - Average rainfall days in February:
15.7 days - Average rainfall days in March:
19.9 days - Average rainfall days in April:
17.6 days - Average rainfall days in May:
13.9 days - Average rainfall days in June:
12.1 days
- Average rainfall days in July:
7.8 days - Average rainfall days in August:
6.1 days - Average rainfall days in September:
10.9 days - Average rainfall days in October:
15.9 days - Average rainfall days in November:
19 days - Average rainfall days in December:
18.6 days
The month with the highest number of rainy days is March (19.9 days).
The month with the least rainy days is August (6.1 days).
Average snowfall
Kirkland, WA
The month with the highest snowfall is February (2.95").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Kirkland, WA
- Average snowfall days in January:
2.1 days - Average snowfall days in February:
3.9 days - Average snowfall days in March:
1.9 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0 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 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
1.5 days
The month with the highest number of snowfall days is February (3.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Kirkland, WA
- Average daylight in January:
8h and 54min - Average daylight in February:
10h and 18min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 42min - Average daylight in May:
15h and 12min - 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 30min
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).
- Average sunshine in January:
4h and 24min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 12min - Average sunshine in May:
9h and 12min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 42min - Average sunshine in September:
9h and 24min - Average sunshine in October:
5h and 36min - Average sunshine in November:
4h and 42min - Average sunshine in December:
4h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 4h and 24min).
Average sunshine days
Kirkland, WA
- Average sunshine days in January:
10.8 days - Average sunshine days in February:
9.5 days - Average sunshine days in March:
8.9 days - Average sunshine days in April:
9.9 days - Average sunshine days in May:
14.8 days - Average sunshine days in June:
15.2 days
- Average sunshine days in July:
21.5 days - Average sunshine days in August:
22.8 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
13.5 days - Average sunshine days in November:
9.2 days - Average sunshine days in December:
11 days
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 UV index
Kirkland, 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 2).
Average cloud cover
Kirkland, WA
The months with the most cloud cover are January and December (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility
Kirkland, WA
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, November and December (5mi).
