Climate Mattawa - Washington

	JanJa	FebFe	MarMa	AprAp	MayMa	JunJu
Average high in ºF Av. high Hi	41	47	57	65	75	82
Average low in ºF Av. low Lo	30	32	38	45	53	60
Days with precipitation Days precip. DP	10	7	7	4	5	4
Av. precipitation in inch Av. precip. Pre.	1.08	0.62	0.74	0.55	0.55	0.54

	JulJu	AugAu	SepSe	OctOc	NovNo	DecDe
Average high in ºF Av. high Hi	92	90	80	65	50	41
Average low in ºF Av. low Lo	67	66	58	46	36	30
Days with precipitation Days precip. DP	1	1	2	6	9	9
Av. precipitation in inch Av. precip. Pre.	0.21	0.08	0.15	0.65	0.91	1.40

Mattawa Climate Graph - Washington Climate Chart

Day	High ºF	Low ºF	Prec/mo inch	Prec/yr inch	Snow/mo inch	Snow/yr inch
1 Jan	38.5	26.9	0.04	0.04	0.12	0.30
2 Jan	38.6	27.0	0.08	0.08	0.20	0.50
3 Jan	38.8	27.1	0.12	0.12	0.20	0.50
4 Jan	38.9	27.2	0.16	0.16	0.31	0.80
5 Jan	39.1	27.4	0.20	0.20	0.39	1.00
6 Jan	39.2	27.5	0.20	0.20	0.51	1.30
7 Jan	39.4	27.7	0.24	0.24	0.59	1.50
8 Jan	39.6	27.8	0.28	0.28	0.59	1.50
9 Jan	39.7	28.0	0.31	0.31	0.71	1.80
10 Jan	39.9	28.1	0.35	0.35	0.79	2.00
11 Jan	40.1	28.3	0.39	0.39	0.91	2.30
12 Jan	40.2	28.4	0.43	0.43	0.98	2.50

Day	High ºF	Low ºF	Precip. inch	Snow inch	Snow d. inch
01 Dec	36.0	30.9	0.00	0.00	0.0
02 Dec	36.0	26.1	0.00	0.00	0.0
03 Dec	36.0	26.1	0.00	0.00	0.0
04 Dec	37.0	30.9	0.00	0.00	0.0
06 Dec	44.1	32.0	0.00	0.00	0.0
07 Dec	44.1	36.0	0.17	0.00	0.0
08 Dec	48.9	37.9	0.05	0.00	0.0
09 Dec	42.1	34.0	0.01	0.00	0.0
10 Dec	37.9	34.0	0.00	0.00	0.0
11 Dec	37.0	32.0	0.28	0.00	0.0
12 Dec	42.1	30.0	0.13	0.00	0.0
13 Dec	46.9	32.0	0.00	0.00	0.0
14 Dec	37.9	30.9	0.00	0.00	0.0
15 Dec	37.9	33.1	0.00	0.00	0.0
16 Dec	35.1	30.9	0.00	0.00	0.0
17 Dec	34.0	30.9	0.00	0.00	0.0
18 Dec	37.9	30.9	0.02	0.00	0.0
19 Dec	35.1	28.9	0.16	1.42	1.0
21 Dec	60.1	44.1	0.00	-	-
22 Dec	51.1	44.1	0.00	-	-
23 Dec	48.0	36.0	0.00	-	-
24 Dec	39.9	28.0	0.00	0.00	0.0
25 Dec	41.0	34.0	0.00	0.00	0.0
26 Dec	41.0	34.0	0.00	0.00	0.0

	Dec 19	Normal
Average high temperature Av. high temp.	41.1 ºF	41 ºF
Average low temperature Av. low temp.	32.8 ºF	30 ºF
Total precipitation Total precip.	0.82 inch	1.08 inch
Total snowfall Total snowfall	1.42 inch	0 inch

Highest max temperature Highest max temp.	60.1 ºF	-
Lowest max temperature Lowest max temp.	34.0 ºF	-
Highest min temperature Highest min temp.	44.1 ºF	-
Lowest min temperature Lowest min temp.	26.1 ºF	-

Past weather December 2019 incomplete - Missing data

Station Data

Monthly averages Mattawa
Longitude: -119.903, Latitude: 46.7379
Average weather Mattawa, WA - 99349

Monthly: 1991-2020 normals
History: 2008-2019

Abbreviations

Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...