According to the Köppen Climate Classification system, Lacomb has a warm-summer mediterranean climate, abbreviated "Csb" on climate maps. The hottest temperature recorded in Lacomb was 113 °F (45.0 °C) on June 29, 2021, while the coldest temperature recorded was 1 °F (−17.2 °C) on January 1, 1979.[9]
| Climate data for Lacomb, Oregon, 1991–2020 normals, extremes 1973–present |
| Month |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Year |
| Record high °F (°C) |
69
(21) |
73
(23) |
80
(27) |
88
(31) |
97
(36) |
113
(45) |
105
(41) |
104
(40) |
101
(38) |
91
(33) |
73
(23) |
70
(21) |
113
(45) |
| Mean maximum °F (°C) |
59.7
(15.4) |
61.7
(16.5) |
69.1
(20.6) |
76.5
(24.7) |
85.0
(29.4) |
89.1
(31.7) |
95.1
(35.1) |
96.0
(35.6) |
91.5
(33.1) |
77.6
(25.3) |
63.9
(17.7) |
58.0
(14.4) |
98.7
(37.1) |
| Mean daily maximum °F (°C) |
46.6
(8.1) |
50.4
(10.2) |
55.1
(12.8) |
59.7
(15.4) |
66.7
(19.3) |
72.1
(22.3) |
81.1
(27.3) |
81.8
(27.7) |
75.7
(24.3) |
63.0
(17.2) |
51.6
(10.9) |
45.3
(7.4) |
62.4
(16.9) |
| Daily mean °F (°C) |
40.0
(4.4) |
42.0
(5.6) |
45.2
(7.3) |
48.8
(9.3) |
54.8
(12.7) |
59.4
(15.2) |
65.5
(18.6) |
65.5
(18.6) |
60.8
(16.0) |
51.9
(11.1) |
44.1
(6.7) |
39.3
(4.1) |
51.4
(10.8) |
| Mean daily minimum °F (°C) |
33.3
(0.7) |
33.5
(0.8) |
35.2
(1.8) |
37.9
(3.3) |
42.9
(6.1) |
46.7
(8.2) |
49.8
(9.9) |
49.3
(9.6) |
45.8
(7.7) |
40.9
(4.9) |
36.7
(2.6) |
33.2
(0.7) |
40.4
(4.7) |
| Mean minimum °F (°C) |
22.4
(−5.3) |
23.8
(−4.6) |
27.0
(−2.8) |
29.6
(−1.3) |
33.2
(0.7) |
39.3
(4.1) |
43.1
(6.2) |
42.4
(5.8) |
37.9
(3.3) |
29.8
(−1.2) |
26.0
(−3.3) |
21.8
(−5.7) |
17.5
(−8.1) |
| Record low °F (°C) |
1
(−17) |
5
(−15) |
20
(−7) |
25
(−4) |
28
(−2) |
32
(0) |
38
(3) |
36
(2) |
31
(−1) |
18
(−8) |
15
(−9) |
2
(−17) |
1
(−17) |
| Average precipitation inches (mm) |
7.50
(191) |
5.82
(148) |
6.45
(164) |
5.46
(139) |
3.83
(97) |
2.90
(74) |
0.55
(14) |
0.61
(15) |
2.28
(58) |
5.15
(131) |
7.89
(200) |
8.79
(223) |
57.23
(1,454) |
| Average snowfall inches (cm) |
0.3
(0.76) |
0.9
(2.3) |
0.1
(0.25) |
0.0
(0.0) |
0.0
(0.0) |
0.0
(0.0) |
0.0
(0.0) |
0.0
(0.0) |
0.0
(0.0) |
0.0
(0.0) |
0.0
(0.0) |
0.4
(1.0) |
1.7
(4.31) |
| Average precipitation days (≥ 0.01 in) |
18.7 |
16.7 |
18.5 |
17.7 |
13.9 |
9.8 |
3.2 |
3.2 |
6.9 |
13.4 |
19.1 |
20.4 |
161.5 |
| Average snowy days (≥ 0.1 in) |
0.2 |
0.5 |
0.1 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.3 |
1.1 |
| Source 1: NOAA[10] |
| Source 2: XMACIS2[9] |
