Annual mean 14°C · wettest around April · prevailing wind SW
Warmest
29.6 °C
Coldest
0.2 °C
Wettest
84%
Windiest
4.8 m/s
Prevailing
SW
3.4 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Washington over the whole year is 14°C. July is the hottest month, with highs of about 29°C; January is the coldest, with lows of about -2°C. Washington has no sharply defined rainy season: the chance of rain on a given day runs from 75% in September, the driest month, to 84% in April, the wettest. Winds in Washington are highest in March, averaging 3.1 m/s (11 km/h), and lightest in July, at 1.3 m/s (5 km/h). The prevailing wind is from the SW. The clearest skies in Washington come in June, when the sky is typically 19% covered; January is the cloudiest month, at 48%.
Month by month Washington climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
2°C
-2°C
-3°C
83%
48%
2.7 m/s
2
0
11
February
6°C
0°C
2°C
82%
39%
2.7 m/s
9
0
28
March
12°C
5°C
7°C
84%
42%
3.1 m/s
16
0
44
April
17°C
9°C
13°C
84%
33%
3.1 m/s
40
6
59
May
23°C
15°C
21°C
84%
34%
2.3 m/s
57
33
46
June
28°C
20°C
29°C
83%
19%
1.8 m/s
35
56
13
July
29°C
22°C
32°C
80%
21%
1.3 m/s
14
47
3
August
28°C
20°C
30°C
83%
25%
1.3 m/s
29
55
8
September
26°C
16°C
27°C
75%
22%
1.4 m/s
49
53
26
October
19°C
10°C
17°C
83%
35%
2.2 m/s
49
17
57
November
11°C
4°C
7°C
83%
34%
2.3 m/s
18
2
47
December
6°C
1°C
1°C
83%
42%
2.5 m/s
4
0
24
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Washington weather by season
Year round, Washington has days of about 2°C at their warmest in January, its coolest month, and 29°C in July, its warmest; the coolest hours of the day run from -2°C to 22°C through the year, and the average temperature over the year is 14°C around the clock. Rain is most likely around April and least likely around September. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Washington weather in winterDecember to February
High 5°CLow -0°CRain 83%
Winter in Washington has typical daily highs of about 5°C and lows of about -0°C, with a 83% chance of rain on a given day.
Washington weather in springMarch to May
High 17°CLow 10°CRain 84%
Spring in Washington has typical daily highs of about 17°C and lows of about 10°C, with a 84% chance of rain on a given day.
Washington weather in summerJune to August
High 29°CLow 21°CRain 82%
Summer in Washington has typical daily highs of about 29°C and lows of about 21°C, with a 82% chance of rain on a given day.
Washington weather in autumnSeptember to November
High 19°CLow 10°CRain 80%
Autumn in Washington has typical daily highs of about 19°C and lows of about 10°C, with a 80% chance of rain on a given day.
When is the rainy season in Washington?
Washington has no sharply defined rainy season: the chance of rain on a given day runs from 75% in September, the driest month, to 84% in April, the wettest.
What time of year is Washington windiest?
Winds in Washington are highest in March, averaging 3.1 m/s (11 km/h), and lightest in July, at 1.3 m/s (5 km/h). The prevailing wind is from the SW.
What is the average temperature in Washington year round?
The average temperature in Washington over the whole year is 14°C. July is the hottest month, with highs of about 29°C; January is the coldest, with lows of about -2°C.