, with very cold winters and hot summers, and with strong temperature variations between night and day.
, at an altitude of 1,250 meters (4,100 ft), in the arid and continental area of the state, the one east of the Cascade Range.
, cold waves are possible, during which the temperature can drop to -20 °C (-4 °F) or even below. In 2013, it dropped to -29 °C (-20 °F). In one year, 93 cm (37 in) of snow fall.
there are strong temperature variations between night and day. At night, it can get cold even in the height of summer. However, on the hottest days of the year, the temperature can reach 36/38 °C (97/100 °F). At the end of June 2021, it reached 39.5 °C (103 °F).
To visit Klamath Falls, you can choose the months of May and September. It is true that it rains a little more often than in summer (especially in May), and that it gets colder at night, but in this way, you can avoid the heat that can occur in summer. September is probably the best month.
. Here are the average temperatures.
January is generally a very cold month. The average temperature is of
-0.3 °C, with a minimum of
-5.8 °C and a maximum of
5.3 °C.

On the coldest nights of the month, the temperature usually drops to around
-15 °C. However, it dropped to
-28.3 °C in January 2017.

On the warmest days of the month, the temperature usually reaches around
11.5 °C. However, it reached
15 °C in January 2003.

Precipitation amounts to
40 mm, distributed over 11 days.
The day lasts on average 9 hours and 30 minutes.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is of
9.8 kph.
February is generally a cold month. The average temperature is of
1.6 °C, with a minimum of
-4.7 °C and a maximum of
7.9 °C.

On the coldest nights of the month, the temperature usually drops to around
-11.5 °C. However, it dropped to
-20 °C in February 2011.

On the warmest days of the month, the temperature usually reaches around
14.5 °C. However, it reached
21.1 °C in February 1995.

Precipitation amounts to
30 mm, distributed over 9 days.
The day lasts on average 10 hours and 35 minutes.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is of
11.4 kph.
March is generally a quite cold month. However, there are remarkable differences between night and day. The average temperature is of
4.1 °C, with a minimum of
-3.1 °C and a maximum of
11.3 °C.

On the coldest nights of the month, the temperature usually drops to around
-9 °C. However, it dropped to
-17 °C in March 2012.

On the warmest days of the month, the temperature usually reaches around
19.5 °C. However, it reached
22.8 °C in March 2004.

Precipitation amounts to
25 mm, distributed over 11 days.
The day lasts on average 12 hours and 0 minutes.
The average humidity is 66%.
The average wind speed is of
12.6 kph.
April is generally a quite cold month. However, there are remarkable differences between night and day. The average temperature is of
6.4 °C, with a minimum of
-1.6 °C and a maximum of
14.3 °C.

On the coldest nights of the month, the temperature usually drops to around
-7.5 °C. However, it dropped to
-11.1 °C in April 2010.

On the warmest days of the month, the temperature usually reaches around
24 °C. However, it reached
27.8 °C in April 2009.

Precipitation amounts to
25 mm, distributed over 9 days.
The day lasts on average 13 hours and 25 minutes.
The average humidity is 60%.
The average wind speed is of
12.7 kph.
May is generally a mild month. However, there are remarkable differences between night and day. The average temperature is of
10.9 °C, with a minimum of
2.3 °C and a maximum of
19.6 °C.

On the coldest nights of the month, the temperature usually drops to around
-4 °C. However, it dropped to
-8.3 °C in May 2008.

On the warmest days of the month, the temperature usually reaches around
28.5 °C. However, it reached
32.8 °C in May 2008.

Precipitation amounts to
25 mm, distributed over 8 days.
The day lasts on average 14 hours and 35 minutes. So the days are long.
The average humidity is 55%.
The average wind speed is of
12.1 kph.
June is generally a very mild month. However, there are remarkable differences between night and day. The average temperature is of
14.9 °C, with a minimum of
5.2 °C and a maximum of
24.6 °C.

On the coldest nights of the month, the temperature usually drops to around
-1 °C. However, it dropped to
-5 °C in June 2001.

On the warmest days of the month, the temperature usually reaches around
32.5 °C. However, it reached
36.7 °C in June 2015.

Precipitation amounts to
15 mm, distributed over 5 days.
The day lasts on average 15 hours and 10 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 50%.
The average wind speed is of
11.3 kph.
July, 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
19.5 °C, with a minimum of
8.8 °C and a maximum of
30.2 °C.

On the coldest nights of the month, the temperature usually drops to around
3.5 °C. However, it dropped to
1 °C in July 1999.

On the warmest days of the month, the temperature usually reaches around
35.5 °C. However, it reached
38.3 °C in July 2013.

Precipitation amounts to only
5 mm, distributed over 2 days.
The day lasts on average 14 hours and 55 minutes. So the days are long.
The average humidity is 46%.
The average wind speed is of
9.6 kph.
August is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of
18.7 °C, with a minimum of
8.1 °C and a maximum of
29.3 °C.

On the coldest nights of the month, the temperature usually drops to around
3 °C. However, it dropped to
-1 °C in August 1999.

On the warmest days of the month, the temperature usually reaches around
35 °C. However, it reached
38 °C in August 1998.

Precipitation amounts to only
5 mm, distributed over 2 days.
The day lasts on average 13 hours and 50 minutes.
The average humidity is 46%.
The average wind speed is of
8.9 kph.
September is generally a very mild month. However, there are remarkable differences between night and day. The average temperature is of
14.6 °C, with a minimum of
3.9 °C and a maximum of
25.3 °C.

On the coldest nights of the month, the temperature usually drops to around
-1.5 °C. However, it dropped to
-4.4 °C in September 2007.

On the warmest days of the month, the temperature usually reaches around
32 °C. However, it reached
38 °C in September 1998.

Precipitation amounts to
10 mm, distributed over 3 days.
The day lasts on average 12 hours and 25 minutes.
The average humidity is 48%.
The average wind speed is of
8.6 kph.
October is generally a mild month. However, there are remarkable differences between night and day. The average temperature is of
8.6 °C, with a minimum of
-0.7 °C and a maximum of
17.9 °C.

On the coldest nights of the month, the temperature usually drops to around
-7 °C. However, it dropped to
-13.3 °C in October 2002.

On the warmest days of the month, the temperature usually reaches around
26.5 °C. However, it reached
32 °C in October 1996.

Precipitation amounts to
20 mm, distributed over 6 days.
The day lasts on average 11 hours and 0 minutes.
The average humidity is 59%.
The average wind speed is of
8.7 kph.
November is generally a cold month. However, there are remarkable differences between night and day. The average temperature is of
2.8 °C, with a minimum of
-3.9 °C and a maximum of
9.5 °C.

On the coldest nights of the month, the temperature usually drops to around
-12.5 °C. However, it dropped to
-20 °C in November 2010.

On the warmest days of the month, the temperature usually reaches around
18.5 °C. However, it reached
22.2 °C in November 2020.

Precipitation amounts to
35 mm, distributed over 10 days.
The day lasts on average 9 hours and 50 minutes.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is of
9.4 kph.
December, the coldest month of the year, is generally a very cold month. The average temperature is of
-0.9 °C, with a minimum of
-6.3 °C and a maximum of
4.6 °C.

On the coldest nights of the month, the temperature usually drops to around
-14.5 °C. However, it dropped to
-29 °C in December 2013.

On the warmest days of the month, the temperature usually reaches around
11.5 °C. However, it reached
21.1 °C in December 2014.

Precipitation amounts to
45 mm, distributed over 12 days.
The day lasts on average 9 hours and 5 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is of
9.8 kph.