Gilliam County, OR Weather Data
Gilliam County, OR Current Weather Data
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Gilliam County, OR Historical Weather Trends
*Historical weather data collected from Hermiston, OR
Gilliam County, OR
Gilliam County, OR area Highlights
Gilliam County, OR Chance of Sunshine
Month
% Sunny
Clear Days
Partly Cloudy Days
Cloudy Days
January
22.58%
2
5
24
February
31.03%
3
6
20
March
40.63%
5
8
19
April
50.00%
5
10
15
May
59.38%
8
11
13
June
66.67%
10
10
10
July
87.10%
19
8
4
August
83.87%
18
8
5
September
76.67%
15
8
7
October
58.06%
10
8
13
November
33.33%
4
6
20
December
25.00%
3
5
24
Gilliam County, OR Historical Temperature
Month
Average
Max Average
Min Average
January
37.1°
44.03°
30.12°
February
42.17°
51.05°
33.25°
March
45.27°
55.6°
34.9°
April
51.9°
63.02°
40.72°
May
60.04°
72.51°
47.5°
June
66.21°
77.87°
54.5°
July
74.23°
88.55°
59.85°
August
73.76°
87.9°
59.6°
September
66.72°
81.57°
51.78°
October
53.75°
64.87°
42.62°
November
43.32°
51.2°
35.35°
December
31.18°
38.76°
23.56°
Gilliam County, OR Rainfall and Snowfall Average
Month
Average Rainfall
Average Snowfall
January
1.56 Inches
0 Inches
February
0.91 Inches
0 Inches
March
1.25 Inches
0 Inches
April
0.66 Inches
0 Inches
May
1.05 Inches
0 Inches
June
0.39 Inches
0 Inches
July
0.25 Inches
0 Inches
August
0.22 Inches
0 Inches
September
0.3 Inches
0 Inches
October
0.85 Inches
0 Inches
November
1.2 Inches
0 Inches
December
1.23 Inches
4.8 Inches
Gilliam County, OR Energy Demand
January
27.93
0
27.93
February
23.65
0
23.65
March
19.52
0
19.52
April
13.47
0.08
13.55
May
5.69
1.04
6.73
June
1.47
3.18
4.65
July
0.03
9.81
9.84
August
0.05
8.78
8.83
September
1.38
3.3
4.68
October
11
0.05
11.05
November
21.5
0
21.5
December
32.75
0
32.75
