Climate and monthly weather forecastLacey, WA
Climate and monthly weather forecast
The climate of Lacey
Situated in the state of Washington, USA, the town of Lacey falls under the Csb category of the Köppen climate classification system. This category represents a warm-summer Mediterranean climate. The location of Lacey grants it a mildly varying weather pattern throughout the year.Taking a comprehensive look at the weather parameters, the region's average high temperatures fluctuate from 43°F (6.1°C) in December to a peak of 78.6°F (25.9°C) in July and August. The lowest average temperatures display a similar pattern, ranging from 33.4°F (0.8°C) in December to 50.5°F (10.3°C) in August.
Relative humidity in Lacey hovers between 71% during the drier months of June and July, and a high of 89% in January, November, and December. As for rainfall, it displays substantial variation ranging from low levels of 0.39" (10mm) in June to high levels of up to 5.79" (147mm) in December.
Lacey also experiences snowfall, but it remains infrequent and quite minimal. The town receives the greatest amount of snow in February with an average of 2.32" (59mm). Notably, no snowfall is recorded from April through November.
The best time to visit Lacey
Based on climatic factors, the most preferable time to visit Lacey is between the months of June and September. During this period, temperatures peak and rain levels drop, ensuring a pleasant and comfortable environment for outdoor activities. Maximum average temperatures hover around 70.3°F (21.3°C) in June, 77.9°F (25.5°C) in July, and 78.6°F (25.9°C) in August, before gradually cooling to 70.5°F (21.4°C) in September. Meanwhile, rainfall is at its lowest, with only 1.26" (32mm) in June, 0.39" (10mm) in July, 0.47" (12mm) in August, and 1.81" (46mm) in September.The worst time to visit Lacey
Contrarily, the period running from November to January is less hospitable for visitors. These months typically observe the coldest and wettest conditions. Average low temperatures hit low points of 38.3°F (3.5°C) in November, 33.4°F (0.8°C) in December, and 34.3°F (1.3°C) in January. Concurrently, rainfall levels peak, with November recording 5" (127mm), December 5.79" (147mm), and January 5.71" (145mm).Spring weather in Lacey
Between March and May, spring unfolds in Lacey exhibiting moderate temperature swings. The average high temperature progresses from 51.1°F (10.6°C) in March to 65.7°F (18.7°C) in May, while the average low temperature moves from 35.8°F (2.1°C) in March up to 41.9°F (5.5°C) in May. Rainfall reduces down the line, starting with a relatively high average of 3.94" (100mm) in March, then declining to 2.76" (70mm) in April, and dropping even further to 1.77" (45mm) in May.Summer weather in Lacey
In Lacey, summer transpires from June to August presenting warm temperatures and the least amount of rainfall. Average high temperatures range from 70.3°F (21.3°C) in June, peaking at 78.6°F (25.9°C) in August but the corresponding low temperatures mark a steady increase from 45.3°F (7.4°C) in June to 50.5°F (10.3°C) in August. The period also observes minimal amounts of rain with averages from just 1.26" (32mm) in June to as low as 0.39" (10mm) in July before a slight increase to 0.47" (12mm) in August.Autumn weather in Lacey
Autumn in Lacey, occurring from September to November, showcases a significant decrease in temperatures and an increase in precipitation as the season progresses. While high temperature averages decrease from 70.5°F (21.4°C) in September to 48.6°F (9.2°C) in November, low temperatures follow a similar trend sliding from 47.7°F (8.7°C) to 38.3°F (3.5°C) over the same months. Rainfall expands considerably during this season, from 1.81" (46mm) in September to a substantial 5" (127mm) in November.Winter weather in Lacey
Winter in Lacey, which spans from December to February, records the coolest temperatures and highest precipitation levels. The high temperatures waver between 43°F (6.1°C) to 46°F (7.8°C), while the low temperatures descend to around 33.4°F (0.8°C) in December, the coldest month. Rainfall levels rise significantly during this period, with December witnessing the highest average rainfall of 5.79" (147mm). The infrequent snowfall in Lacey mostly occurs during these winter months, with February witnessing the most snowfall at an average of 2.32" (59mm).Weather in January
January in Lacey, Washington, introduces the year with a brisk note. A blanket of clouds covers the sky for much of the month, causing frequent rainfall. Snowfall is also a distinct possibility, as the temperatures often oscillate near the freezing point. Weather in January »Weather in February
Moving into February, Lacey experiences a slight rise in average temperatures. This slight heat surge melts lingering snow, and while rainfall persists, snowfalls become less prevalent. Although the days grow longer allowing for more sunshine, the attentiveness to a warm coat remains. Weather in February »Weather in March
March heralds the beginnings of spring with a modest increase in temperatures, although the weather remains on the cooler side. Rainfall continues to be a dominant feature; however, the lengthening days augur increasing sunshine hours. Weather in March »Weather in April
The arrival of April in Lacey brings more distinct signs of spring with milder temperatures and decreasing rainfall. As the spring rain showers lessen, the landscape thrives, coming alive with new foliage and blossoming life. The daylight expands further, fostering longer hours of sunshine elevated to 7h on average. Weather in April »Weather in May
May observes a significant decrease in rainfall from 2.76" (70mm) to 1.77" (45mm) and a beneficial spike in temperatures. The weather becomes agreeably warmer, with the spring chill gradually departing. Longer days and extended sunshine hours of 8.1h promote outdoor activities and sights of locals making the most of the pleasant weather. Weather in May »Weather in June
June welcomes the summer season with an increase in average temperatures, reaching 70.3°F (21.3°C) at their highest. Mornings are graced with a cool breeze, gradually warming up as the day progresses. The rain takes a back seat, making way for extended sunlight hours becoming the prominent feature of the daily weather. Weather in June »Weather in July
July is the warmest month in Lacey, with the highest temperature reaching an average of 77.9°F (25.5°C). The summer heat is periodically balanced by gentle breezes, while the rainfall is kept at bay. The sun dominates the sky for an impressive 10.1h daily average cast under the longest day length of the year. Weather in July »Weather in August
Continuing in the vein of the warm summer months, August in Lacey maintains a similar temperature range to July. As summer progresses, the air becomes drier, reducing the overall humidity. However, August retains the charm of sunny days with an average of 10.2h of sunshine despite slightly reducing daylight hours. Weather in August »Weather in September
September witnesses the beginning of the gradual transition from summer to autumn. Temperatures start to decline, and the days become shorter. The rainfall also sees a significant increase from 0.47" (12mm) to 1.81" (46mm), hinting at the arrival of the wet season. Weather in September »Weather in October
By October, autumn is in full swing in Lacey. Temperatures continue their downward trend and the days of summer warmth become a memory. The increase in rainfall is apparent, and cloud cover returns in full force. On the flip side, the autumn foliage in full bloom creates a mesmerizing landscape. Weather in October »Weather in November
November in Lacey marks the onset of winter as temperatures continue to drop. With diminishing daylight hours and the sun's visibility reduced to 3.9h on average, the winter chill sets in. Rainfall maintains its consistency, providing the city with an average of 5" (127mm). Weather in November »Weather in December
Finally, December brings the coldest average low temperature to Lacey, dropping to 33.4°F (0.8°C). The short days and limited sunlight hours of 3.4h indicate the full arrival of winter. Despite the cold, December's wind speeds show slight decline to an average of 4.2mph (6.8km/h). Weather in December »Updated: Aug 22, 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, November and December, with an average relative humidity of 89%, are most humid months.
In Lacey, during the entire year, the rain falls for 177.4 days and collects up to 37.05" (941mm) of precipitation.
Months with snowfall in Lacey, Washington, are January through March, November and December.
Throughout the year, there are 8.7 snowfall days, and 5.31" (135mm) of snow is accumulated.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
The month with the most snowfall is February, when snow falls for 3.3 days and typically aggregates up to 2.32" (59mm) 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.
April through October are months without snowfall.
The month with the longest days is June, with an average of 15h and 48min of daylight.
June and July, with an average maximum UV index of 5, are months with the highest UV index.
With an average relative humidity of 71%, July is the least humid month.
The month with the least rainfall is July, when the rain falls for 6.9 days and typically collects 0.39" (10mm) of precipitation.
August is the warmest month, exhibiting average temperatures of 78.6°F (25.9°C) at the peak and 50.5°F (10.3°C) at the base.
August has the most sunshine of the year, with an average of 10.2h of sunshine.
Temperature records mark December as the coldest month, with highs averaging 43°F (6.1°C) and lows at 33.4°F (0.8°C).
December is the month with the most rainfall. Rain falls for 18.8 days and accumulates 5.79" (147mm) of precipitation.
December has the shortest days of the year, with an average of 8h and 36min of daylight.
The month with the least sunshine is December, with an average of 3.4h of sunshine.
Average temperature
Lacey, WA
The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (43°F).
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (33.4°F).
Average pressure
Lacey, WA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
30.06"Hg - Average pressure in May:
30.04"Hg - Average pressure in June:
30.04"Hg
- Average pressure in July:
30.06"Hg - Average pressure in August:
30.02"Hg - Average pressure in September:
30.02"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 (30.09"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed
Lacey, WA
- Average wind speed in January:
4.5mph - Average wind speed in February:
4.5mph - Average wind speed in March:
4.6mph - Average wind speed in April:
4.5mph - Average wind speed in May:
4.3mph - Average wind speed in June:
4.5mph
- Average wind speed in July:
4.2mph - Average wind speed in August:
4mph - Average wind speed in September:
3.8mph - Average wind speed in October:
3.9mph - Average wind speed in November:
4.6mph - Average wind speed in December:
4.2mph
The windiest months (with the highest average wind speed) are March and November (4.6mph).
The calmest month (with the lowest average wind speed) is September (3.8mph).
Average humidity
Lacey, WA
The months with the highest relative humidity are January, November and December (89%).
The month with the lowest relative humidity is July (71%).
Average rainfall
Lacey, WA
- Average rainfall in January:
5.71" - Average rainfall in February:
3.5" - Average rainfall in March:
3.94" - Average rainfall in April:
2.76" - Average rainfall in May:
1.77" - Average rainfall in June:
1.26"
The wettest month (with the highest rainfall) is December (5.79").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days
Lacey, WA
- Average rainfall days in January:
18.9 days - Average rainfall days in February:
17.4 days - Average rainfall days in March:
20.4 days - Average rainfall days in April:
18.4 days - Average rainfall days in May:
13.5 days - Average rainfall days in June:
11.3 days
- Average rainfall days in July:
6.9 days - Average rainfall days in August:
5.5 days - Average rainfall days in September:
11.7 days - Average rainfall days in October:
15.9 days - Average rainfall days in November:
18.7 days - Average rainfall days in December:
18.8 days
The month with the highest number of rainy days is March (20.4 days).
The month with the least rainy days is August (5.5 days).
Average snowfall
Lacey, WA
The month with the highest snowfall is February (2.32").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Lacey, WA
- Average snowfall days in January:
1.9 days - Average snowfall days in February:
3.3 days - Average snowfall days in March:
1.3 days - Average snowfall days in April:
0.1 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:
0.7 days - Average snowfall days in December:
1.4 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Lacey, 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 36min - Average daylight in May:
15h and 6min - Average daylight in June:
15h and 48min
- Average daylight in July:
15h and 24min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 24min - Average daylight in December:
8h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in January:
3h and 30min - Average sunshine in February:
3h and 42min - Average sunshine in March:
5h and 6min - Average sunshine in April:
7h and 0min - Average sunshine in May:
8h and 6min - Average sunshine in June:
8h and 42min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
10h and 12min - Average sunshine in September:
8h and 18min - Average sunshine in October:
4h and 48min - Average sunshine in November:
3h and 54min - Average sunshine in December:
3h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days
Lacey, WA
- Average sunshine days in January:
9.8 days - Average sunshine days in February:
8.4 days - Average sunshine days in March:
8.8 days - Average sunshine days in April:
9.9 days - Average sunshine days in May:
15.8 days - Average sunshine days in June:
15.8 days
- Average sunshine days in July:
21.9 days - Average sunshine days in August:
22.4 days - Average sunshine days in September:
16.1 days - Average sunshine days in October:
13.8 days - Average sunshine days in November:
8.7 days - Average sunshine days in December:
9.8 days
The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is February (8.4 days).
Average UV index
Lacey, WA
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Lacey, WA
The months with the most cloud cover are January and December (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility
Lacey, WA
The months with the highest visibility are June, July and August (5mi).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (4mi).
