Climate and monthly weather forecastLongview, WA
Climate and monthly weather forecast
The climate of Longview
Longview, nestled in the state of Washington USA, falls under the Mediterranian warm summer category termed as Csb by the Köppen climate classification. This delineation is an indication of a region where winters can be wet, relatively mild while summers see less rainfall and can be hot but not extreme in their temperatures.Relatively consistent humidity levels mark this region with an annual range between 72% and 88%. Temperatures tend to be mild, fluctuating throughout the year, with the lowest average temperatures touching 32.7°F (0.4°C) in December and the highest reaching 77.9°F (25.5°C) in August. The span of daylight hours shifts from the lowest of 8.7 hours in December and peaks at 15.7 hours in June, a significant deviation that defines the length of days between winter and summer.
Rain prevalence in Longview is significant through the year with an estimated range from 0.39" (10mm) in August to a maximum of 3.9" (99mm) in January. In contrast, snowfall is rare and limited to colder endpoints of the year, with the maximum being noted at merely 1.26" (32mm) in January, and almost negligible occurrence for most of the year. One unique pattern in Longview is its relatively minor sea temperature variations which cover a range from 46.6°F (8.1°C) in February to 53.8°F (12.1°C) in September.
The best time to visit Longview
The Mediterranean climate suggests that the best time to visit Longview would be during the warm, dry summer season. Turning the spotlight on the data, the period from June to August presents promising conditions for a visit. Humidity levels drop down to 72% to 73% during this time, ensuring comfortable outdoor conditions. Sunshine averages rise to a promising 8.5 hours to 10.4 hours a day with an extended daylight duration, offering more than enough time to explore the city's attractions.The worst time to visit Longview
Judging by the prevailing weather circumstances, the period from November to January may present the most challenging conditions for visiting Longview. Temperatures hover at their lowest averages from 32.7°F (0.4°C) to 44.2°F (6.8°C), coupled with the highest proportion of rainfall days amounting to about 18 days in a month. More so, December receives the least amount of daylight, making sightseeing and outdoor activities problematic due to shorter days and unfavorable weather.Spring weather in Longview
Spring in Longview, effectively covering March to May, unfolds moderate weather trends. Average temperature highs oscillate from 50°F (10°C) in March to 64.8°F (18.2°C) in May. Rainfall witnesses a consistent reduction moving from an average of 2.83" (72mm) in March to just 1.61" (41mm) in May. Simultaneously, daylight hours tend to expand from an average of 12 hours in March to 15 hours in May, enriching the day for visitors.Summer weather in Longview
Longview's summer spans June to August, marked by warm temperatures and a decline in rainfall. Temperatures reach their peak in July and August with averages sitting at 76.8°F (24.9°C) and 77.9°F (25.5°C) respectively. Days are longer with an average daylight span close to 15 hours, while rainfall averages reduce to just about 0.43" (11mm) in July and 0.39" (10mm) in August, rendering the conditions ideal for a delightful summer outing.Autumn weather in Longview
Autumn, encapsulating September to November, witnesses a gradual decrease in temperatures, with averages dropping from 70.7°F (21.5°C) in September to 48.4°F (9.1°C) in November. Rainfall undertakes an inverse pattern, increasing progressively from 1.26" (32mm) in September to 2.64" (67mm) in November. Daylight hours shrink correspondingly, falling from an average of 12.5 hours in September to 9.5 hours in November.Winter weather in Longview
Wrapping up the annual cycle, winter in Longview, running from December to February, is characterized by cooler temperatures and high rainfall. Average temperatures meander in the region of 33.4°F (0.8°C) to 45.5°F (7.5°C) while rainfall peaks at 3.9" (99mm) in January. Moreover, daylight is in its shortest supply during these months, providing average daylight spans between 8.7 to 10.4 hours. While snowfall can occur, it tends to be light with a maximum of 1.26" (32mm) in January.Weather in January
January ushers in the colder months in Longview, Washington, predominantly cloudy and somewhat damp with relatively high humidity. The temperatures tend to stay quite chilly, with high temperatures peaking at a mere 44.2°F (6.8°C) while lows can drop to 33.4°F (0.8°C). Weather in January »Weather in February
February, the last month of the winter in Longview, is also a frosty month, with temperature in the range of an average high of 45.5°F (7.5°C) and an average low of 33.3°F (0.7°C). Transitioning into February, Longview experiences an average high-temperature of a still frosty 45.5°F (7.5°C), marking a minor shift from the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a fresh month in Longview, Washington, with an average temperature ranging between min 34.7°F (1.5°C) and max 50°F (10°C). Longview marks the onset of March with an average high-temperature of a fresh 50°F (10°C), a subtle shift from February's 45.5°F (7.5°C). Weather in March »Weather in April
April brings with it the full bloom of spring, as Longview witnesses a drastic transformation in weather conditions. The city says goodbye to the chill of winter and welcomes milder, warmer days. High temperatures average at 55.9°F (13.3°C), a significant jump from March. Weather in April »Weather in May
May is characterized by a pleasant spring warmth, where nature comes alive in its full glory in Longview. The temperatures continue to rise, firmly establishing the departure from the cooler months. Google sunny days become more frequent, creating perfect conditions for outdoor activities and exploration. Weather in May »Weather in June
June marks the entrance of summer in Longview with an evident rise in temperatures. The city experiences some of its longest days during this period, allowing for maximum sunshine exposure. The rising heat signifies a significant break from the pleasant days of spring. Weather in June »Weather in July
July is characterized by peak summer weather conditions in Longview, the warmest month of the year with high temperatures reaching a scorching 76.8°F (24.9°C). July also brings back memories of the radiant sun, clear skies, and longer days, making it a popular month for outdoor recreational activities. Weather in July »Weather in August
Following July, August continues the trend of high temperatures, although slightly milder. Longview remains bathed in sunshine, offering excellent visibility and long daylight hours. Rainfall is relatively scarce, similar to the conditions of July, contributing to an overall drier atmosphere. Weather in August »Weather in September
September signifies the dawn of fall in Longview, with temperatures beginning to drop, indicating the end of hot summer days. While the afternoons remain pleasantly warm, evenings start to get chillier. Rainfall experiences a slight increase, marking the return of wetter conditions after a rather dry summer. Weather in September »Weather in October
October in Longview marks the full onset of fall, with temperatures continuing the downward trend from September. October is characterized by frequent rain showers, a shift from the relatively drier conditions in September. With minimal sunshine and more overcast days, October ushers in a period of less outdoor activities. Weather in October »Weather in November
November brings about a marked transition towards winter temperatures in Longview, with weather conditions becoming noticeably colder. Preceding December, November days are shorter and cloudier compared to October. Prolonged periods of rain make for a grayish canvas, marking a return of the often wet and chilly climate common in the Pacific Northwest region. Weather in November »Weather in December
December brings with it the full swing of winter in Longview, culminating in the coldest temperatures of the year. The city gets carpeted in a white cover with December recording snowfall with 0.24" (6mm), however minor it may be. 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, February, November and December, with an average relative humidity of 88%, are most humid months in Longview.
The month with the most rainfall is January, when the rain falls for 18.7 days and typically aggregates up to 3.9" (99mm) of precipitation.
Throughout the year, in Longview, there are 175.5 rainfall days, and 25.83" (656mm) of precipitation is accumulated.
Months with snowfall in Longview, Washington, are January through March, November and December.
The month with the most snowfall in Longview is January, when snow falls for 1.7 days and typically aggregates up to 1.26" (32mm) of snow.
Throughout the year, in Longview, Washington, there are 6.7 snowfall days, and 3.54" (90mm) of snow is accumulated.
The months with the least sunshine are January, February and December, with an average of 3.5h of sunshine.
With an average ocean temperature of 46.6°F (8.1°C), February is the month with the coldest seawater in Longview, Washington.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Longview, 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 in Longview, Washington.
With an average of 15h and 42min of daylight, June has the longest days of the year in Longview, Washington.
The months with the highest UV index in Longview, Washington, are June and July, with an average maximum UV index of 5.
July is the least humid month in Longview, Washington, with an average relative humidity of 72%.
August stands out as Longview's warmest month, with temperatures ranging between an average high of 77.9°F (25.5°C) and a low of 49.8°F (9.9°C).
The month with the least rainfall in Longview, Washington, is August, when the rain falls for 6.3 days and typically collects 0.39" (10mm) of precipitation.
With an average of 10.4h of sunshine, August has the most sunshine of the year.
September is the month with the warmest seawater, with an average ocean temperature of 53.8°F (12.1°C).
November is the month with the lowest UV index in Longview, Washington, with an average maximum UV index of 1.
December brings the lowest temperatures, with an average high of 42.3°F (5.7°C) and an average low of 32.7°F (0.4°C).
The month with the shortest days is December, with an average of 8h and 42min of daylight.
Average temperature
Longview, WA
The warmest month (with the highest average high temperature) is August (77.9°F).
The month with the lowest average high temperature is December (42.3°F).
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (32.7°F).
Average pressure
Longview, WA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.03"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:
30.05"Hg - Average pressure in August:
30.01"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed
Longview, WA
- Average wind speed in January:
4.8mph - Average wind speed in February:
4.5mph - Average wind speed in March:
4.7mph - Average wind speed in April:
4.4mph - Average wind speed in May:
4.2mph - Average wind speed in June:
4.1mph
- Average wind speed in July:
4.3mph - Average wind speed in August:
4mph - Average wind speed in September:
3.9mph - Average wind speed in October:
4.1mph - Average wind speed in November:
4.7mph - Average wind speed in December:
4.7mph
The windiest month (with the highest average wind speed) is January (4.8mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).
Average humidity
Longview, WA
The months with the highest relative humidity are January, February, November and December (88%).
The month with the lowest relative humidity is July (72%).
Average rainfall
Longview, WA
- Average rainfall in January:
3.9" - Average rainfall in February:
2.8" - Average rainfall in March:
2.83" - Average rainfall in April:
2.28" - Average rainfall in May:
1.61" - Average rainfall in June:
1.26"
- Average rainfall in July:
0.43" - Average rainfall in August:
0.39" - Average rainfall in September:
1.26" - Average rainfall in October:
2.83" - Average rainfall in November:
2.64" - Average rainfall in December:
3.58"
The wettest month (with the highest rainfall) is January (3.9").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days
Longview, WA
- Average rainfall days in January:
18.7 days - Average rainfall days in February:
16.7 days - Average rainfall days in March:
20.3 days - Average rainfall days in April:
18.8 days - Average rainfall days in May:
13.9 days - Average rainfall days in June:
12 days
- Average rainfall days in July:
6.1 days - Average rainfall days in August:
6.3 days - Average rainfall days in September:
10.8 days - Average rainfall days in October:
15.9 days - Average rainfall days in November:
17.5 days - Average rainfall days in December:
18.5 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is July (6.1 days).
Average snowfall
Longview, WA
The month with the highest snowfall is January (1.26").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Longview, WA
- Average snowfall days in January:
1.7 days - Average snowfall days in February:
2.2 days - Average snowfall days in March:
1.4 days - Average snowfall days in April:
0 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:
0.9 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature
Longview, WA
The best month for swimming (with the highest average sea temperature) is September (53.8°F).
The coldest month (with the lowest average sea temperature) is February (46.6°F).
Average daylight / Average sunshine
Longview, WA
- Average daylight in January:
9h and 6min - Average daylight in February:
10h and 24min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 36min - Average daylight in May:
15h and 0min - Average daylight in June:
15h and 42min
- Average daylight in July:
15h and 18min - Average daylight in August:
14h and 6min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 30min - Average daylight in December:
8h and 42min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in January:
3h and 30min - Average sunshine in February:
3h and 30min - Average sunshine in March:
4h and 48min - Average sunshine in April:
6h and 18min - Average sunshine in May:
7h and 54min - Average sunshine in June:
8h and 30min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
10h and 24min - Average sunshine in September:
8h and 24min - Average sunshine in October:
4h and 54min - Average sunshine in November:
3h and 42min - Average sunshine in December:
3h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 30min).
Average sunshine days
Longview, WA
- Average sunshine days in January:
10.6 days - Average sunshine days in February:
9.1 days - Average sunshine days in March:
8.9 days - Average sunshine days in April:
9.3 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
15.4 days
- Average sunshine days in July:
22 days - Average sunshine days in August:
21.3 days - Average sunshine days in September:
17 days - Average sunshine days in October:
13.7 days - Average sunshine days in November:
10.5 days - Average sunshine days in December:
10.2 days
The month with the most sunshine days is July (22 days).
The month with the least sunshine days is March (8.9 days).
Average UV index
Longview, WA
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover
Longview, WA
The months with the most cloud cover are February and March (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility
Longview, WA
The month with the highest visibility is August (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, September, October, November and December (4mi).
