, with quite cold, rainy winters and mild to pleasantly warm, fairly sunny summers.
, on the plain, 75 km (45 mi) away from the Pacific Ocean. Beyond the Columbia River lies the state of Oregon, while a tributary of the Columbia River, the Cowlitz, divides Longview from the town of Kelso. Mount St. Helens is just 55 km (35 mi) to the east.
The city is surrounded by hills, so it has a cooler microclimate than other cities in the area: for example, it is about 1.5 °C cooler than Portland, and is similar to Centralia, which is 65 km (40 mi) further to the north.
is not very cold, every winter there can be a cold period, with night lows dropping to -7/-8 °C (18/19 °F). Moreover, there can sometimes be cold waves, sometimes even in November, with temperatures going down to -10 °C (14 °F) or even below. The temperature dropped to -16.5 °C (2 °F) in February 1950, and to -14 °C (7 °F) in December 2009.
Snow is rare, but given the high precipitation level, a heavy snowfall can occasionally occur. On average, 13 cm (5 inches) of snow fall per year.
, nights are cool, and sometimes even a little cold, while the days are generally pleasant. However, it can sometimes get hot, and on the hottest days of the year, the temperature can reach 35/36 °C (95/97 °F). During the exceptional heat wave of late June 2021, it reached 43.3 (110 °F).
The best time to visit Longview is summer, especially in July and August, since it is the mildest, driest and sunniest period of the year. May, June and September are also acceptable months.
. Here are the average temperatures.
January is generally a quite cold month. The average temperature is of
5.2 °C, with a minimum of
1.7 °C and a maximum of
8.7 °C.
On the coldest nights of the month, the temperature usually drops to around
-5 °C. However, it dropped to
-11.7 °C in January 2017.
On the warmest days of the month, the temperature usually reaches around
13.5 °C. However, it reached
17.2 °C in January 2018.
Precipitation amounts to
165 mm, distributed over 24 days.
The day lasts on average 9 hours and 5 minutes.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is of
9.5 kph.
February is generally a quite cold month. The average temperature is of
6.3 °C, with a minimum of
1.5 °C and a maximum of
11.1 °C.
On the coldest nights of the month, the temperature usually drops to around
-5 °C. However, it dropped to
-10 °C in February 1996.
On the warmest days of the month, the temperature usually reaches around
16 °C. However, it reached
21 °C in February 2005.
Precipitation amounts to
120 mm, distributed over 20 days.
The day lasts on average 10 hours and 25 minutes.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of
8 kph.
March is generally a quite mild month. The average temperature is of
8.4 °C, with a minimum of
3.1 °C and a maximum of
13.8 °C.
On the coldest nights of the month, the temperature usually drops to around
-2.5 °C. However, it dropped to
-7.8 °C in March 2019.
On the warmest days of the month, the temperature usually reaches around
20.5 °C. However, it reached
26.6 °C in March 1994.
Precipitation amounts to
125 mm, distributed over 21 days.
The day lasts on average 12 hours and 0 minutes.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is of
8.3 kph.
April is generally a mild month. The average temperature is of
10.7 °C, with a minimum of
4.7 °C and a maximum of
16.7 °C.
On the coldest nights of the month, the temperature usually drops to around
0 °C. However, it dropped to
-3 °C in April 2007.
On the warmest days of the month, the temperature usually reaches around
25.5 °C. However, it reached
32 °C in April 2014.
Precipitation amounts to
105 mm, distributed over 19 days.
The day lasts on average 13 hours and 35 minutes.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of
7.7 kph.
May is generally a mild month. The average temperature is of
13.9 °C, with a minimum of
7.4 °C and a maximum of
20.4 °C.
On the coldest nights of the month, the temperature usually drops to around
2.5 °C. However, it dropped to
0 °C in May 2002.
On the warmest days of the month, the temperature usually reaches around
29 °C. However, it reached
34 °C in May 2001.
Precipitation amounts to
80 mm, distributed over 14 days.
The day lasts on average 15 hours and 0 minutes. So the days are long.
The average humidity is 69%.
The average wind speed is of
7.6 kph.
June is generally a very mild month. The average temperature is of
16.2 °C, with a minimum of
9.7 °C and a maximum of
22.7 °C.
On the coldest nights of the month, the temperature usually drops to around
5.5 °C. However, it dropped to
3 °C in June 1999.
On the warmest days of the month, the temperature usually reaches around
31 °C. However, it reached
36.1 °C in June 2019.
Precipitation amounts to
50 mm, distributed over 11 days.
The day lasts on average 15 hours and 40 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
The average humidity is 69%.
The average wind speed is of
8 kph.
July is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of
19.1 °C, with a minimum of
11.9 °C and a maximum of
26.3 °C.
On the coldest nights of the month, the temperature usually drops to around
8 °C. However, it dropped to
6 °C in July 1999.
On the warmest days of the month, the temperature usually reaches around
34 °C. However, it reached
41 °C in July 2009.
Precipitation amounts to
15 mm, distributed over 5 days.
The day lasts on average 15 hours and 20 minutes. So the days are long.
The average humidity is 66%.
The average wind speed is of
8.5 kph.
August, the warmest month of the year, is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of
19.4 °C, with a minimum of
11.8 °C and a maximum of
26.9 °C.
On the coldest nights of the month, the temperature usually drops to around
8 °C. However, it dropped to
5 °C in August 2008.
On the warmest days of the month, the temperature usually reaches around
34 °C. However, it reached
39 °C in August 2014.
Precipitation amounts to
25 mm, distributed over 5 days.
The day lasts on average 14 hours and 0 minutes.
The average humidity is 68%.
The average wind speed is of
7.9 kph.
September is generally a very mild month. However, there are remarkable differences between night and day. The average temperature is of
17 °C, with a minimum of
9.8 °C and a maximum of
24.3 °C.
On the coldest nights of the month, the temperature usually drops to around
5 °C. However, it dropped to
1 °C in September 1999.
On the warmest days of the month, the temperature usually reaches around
31 °C. However, it reached
35.6 °C in September 2017.
Precipitation amounts to
60 mm, distributed over 9 days.
The day lasts on average 12 hours and 30 minutes.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is of
6.9 kph.
October is generally a mild month. The average temperature is of
12.2 °C, with a minimum of
6.7 °C and a maximum of
17.8 °C.
On the coldest nights of the month, the temperature usually drops to around
0.5 °C. However, it dropped to
-5 °C in October 2006.
On the warmest days of the month, the temperature usually reaches around
24 °C. However, it reached
28.3 °C in October 1993.
Precipitation amounts to
110 mm, distributed over 17 days.
The day lasts on average 10 hours and 50 minutes.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of
6.9 kph.
November is generally a quite mild month. The average temperature is of
7.7 °C, with a minimum of
3.7 °C and a maximum of
11.7 °C.
On the coldest nights of the month, the temperature usually drops to around
-3.5 °C. However, it dropped to
-11 °C in November 2010.
On the warmest days of the month, the temperature usually reaches around
17.5 °C. However, it reached
24 °C in November 2010.
Precipitation amounts to
185 mm, distributed over 23 days.
The day lasts on average 9 hours and 25 minutes.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is of
8.8 kph.
December, the coldest month of the year, is generally a quite cold month. The average temperature is of
4.8 °C, with a minimum of
1.6 °C and a maximum of
8.1 °C.
On the coldest nights of the month, the temperature usually drops to around
-5.5 °C. However, it dropped to
-14 °C in December 2009.
On the warmest days of the month, the temperature usually reaches around
13 °C. However, it reached
17 °C in December 2014.
Precipitation amounts to
180 mm, distributed over 24 days.
The day lasts on average 8 hours and 40 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is of
9.9 kph.