Annual mean 18°C · wettest around January · prevailing wind SW
Warmest
31.1 °C
Coldest
16.3 °C
Wettest
21%
Windiest
3.7 m/s
Prevailing
SW
2.9 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
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 West Covina over the whole year is 18°C. August is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 8°C. The rainy (wet) season in West Covina runs from October to April, peaking in January with a 19% chance of rain on a given day. The dry season is May to September; July is the driest month, at 3%. Winds in West Covina are highest in May, averaging 2.6 m/s (9 km/h), and lightest in December, at 1.5 m/s (5 km/h). The prevailing wind is from the SW. The clearest skies in West Covina come in August, when the sky is typically 17% covered; May is the cloudiest month, at 43%.
Month by month West Covina 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
17°C
8°C
14°C
19%
29%
1.7 m/s
50
1
82
February
18°C
9°C
15°C
19%
29%
2.0 m/s
52
5
79
March
18°C
10°C
15°C
18%
37%
2.4 m/s
57
5
79
April
22°C
13°C
19°C
12%
32%
2.5 m/s
75
14
74
May
22°C
15°C
20°C
10%
43%
2.6 m/s
81
16
72
June
26°C
18°C
25°C
6%
33%
2.6 m/s
72
45
42
July
30°C
20°C
28°C
3%
19%
2.6 m/s
43
69
14
August
30°C
20°C
29°C
9%
17%
2.4 m/s
35
73
9
September
29°C
19°C
28°C
7%
24%
2.2 m/s
53
59
21
October
26°C
15°C
24°C
11%
23%
1.9 m/s
72
43
44
November
22°C
11°C
19°C
13%
20%
1.6 m/s
78
14
73
December
18°C
9°C
15°C
17%
26%
1.5 m/s
57
2
84
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 West Covina weather by season
Year round, West Covina has days of about 17°C at their warmest in January, its coolest month, and 30°C in August, its warmest; the coolest hours of the day run from 8°C to 20°C through the year, and the average temperature over the year is 18°C around the clock. Rain is most likely around January and least likely around July. 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.
West Covina weather in winterDecember to February
High 17°CLow 9°CRain 19%
Winter in West Covina has typical daily highs of about 17°C and lows of about 9°C, with a 19% chance of rain on a given day.
West Covina weather in springMarch to May
High 21°CLow 13°CRain 13%
Spring in West Covina has typical daily highs of about 21°C and lows of about 13°C, with a 13% chance of rain on a given day.
West Covina weather in summerJune to August
High 29°CLow 20°CRain 6%
Summer in West Covina has typical daily highs of about 29°C and lows of about 20°C, with a 6% chance of rain on a given day.
West Covina weather in autumnSeptember to November
High 26°CLow 15°CRain 10%
Autumn in West Covina has typical daily highs of about 26°C and lows of about 15°C, with a 10% chance of rain on a given day.
When is the rainy season in West Covina?
The rainy (wet) season in West Covina runs from October to April, peaking in January with a 19% chance of rain on a given day. The dry season is May to September; July is the driest month, at 3%.
What time of year is West Covina windiest?
Winds in West Covina are highest in May, averaging 2.6 m/s (9 km/h), and lightest in December, at 1.5 m/s (5 km/h). The prevailing wind is from the SW.
What is the average temperature in West Covina year round?
The average temperature in West Covina over the whole year is 18°C. August is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 8°C.