Oregon Caves National Monument - Climate

Climate

The main unit of the monument is located in the mountains at elevations varying from 3,680 to 5,480 feet (1,120 to 1,670 m) above sea level. The park's nearness to the ocean contributes to its relatively mild climate. Temperatures generally range between 20 and 40 °F (-7 and 4 °C) in winter and 50 and 90 °F (10 and 32 °C) in summer. However, inside the cave, the temperature is always about 44 °F (7 °C). Annual precipitation, arriving mostly as wet snow, averages 55 inches (1,400 mm). Moderate winds are common.

The climate in Cave Junction, at 1,800 feet (550 m) above sea level, is warmer and wetter than the climate at the main unit. December and January are the coldest months, when highs average about 46 °F (8 °C) and lows average 32 °F (0 °C). July and August are the warmest months, with an average high of 92 °F (33 °C) and an average low of about 50 °F (10 °C). The highest recorded temperature at Cave Junction was 112 °F (44 °C) in 2006, and the lowest was −6 °F (−21 °C) in 1972. Annual precipitation averages about 63 inches (1,600 mm). November through February are the wettest, averaging about 10 to 11 inches (250 to 280 mm) each month.

Climate data for Cave Junction, Oregon
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average high °F (°C) 47
(8)
52
(11)
58
(14)
65
(18)
74
(23)
83
(28)
92
(33)
92
(33)
85
(29)
72
(22)
54
(12)
46
(8)
68.3
(20.2)
Average low °F (°C) 32
(0)
34
(1)
35
(2)
37
(3)
41
(5)
47
(8)
51
(11)
49
(9)
44
(7)
39
(4)
36
(2)
32
(0)
39.8
(4.3)
Precipitation inches (mm) 10.81
(274.6)
9.75
(247.7)
8.15
(207)
4.10
(104.1)
2.27
(57.7)
0.74
(18.8)
0.28
(7.1)
0.55
(14)
1.32
(33.5)
3.66
(93)
10.04
(255)
10.98
(278.9)
62.65
(1,591.3)
Source: The Weather Channel

Read more about this topic:  Oregon Caves National Monument

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