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Monthly Historical Averages
Decatur, WA
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January
Average Temperature
High
7°
Feels 5
Low
4°
Feels 1
Average Precipitation
15 Days
Rain amount
97.4mm
Snow amount
1.2cm
Daily Historical Averages
January 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
8°
12
10°
13
11°
14
9°
15
8°
16
9°
17
8°
18
8°
19
7°
20
7°
21
7°
22
7°
23
7°
24
7°
25
8°
26
27
28
29
30
31
Forecast
Sunday, January 11, 2026
Day
8°
Feels 4
Wind
39 km/h SE
Gust
59 km/h
Humidity
81%
P.O.P
80%
Rain
~5 mm
Night
8°
Feels 4
Wind
36 km/h SE
Gust
54 km/h
Humidity
93%
P.O.P
90%
Rain
5-10 mm
Historical Averages
Jan 11
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.