Annual mean 14°C · wettest around April · prevailing wind SW
Warmest
29.4 °C
Coldest
1.0 °C
Wettest
74%
Windiest
5.3 m/s
Prevailing
SW
3.9 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 Mount Vernon 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. Mount Vernon has no sharply defined rainy season: the chance of rain on a given day runs from 65% in February, the driest month, to 72% in April, the wettest. Winds in Mount Vernon are highest in March, averaging 3.7 m/s (13 km/h), and lightest in August, at 1.7 m/s (6 km/h). The prevailing wind is from the SW. The clearest skies in Mount Vernon come in June, when the sky is typically 30% covered; January is the cloudiest month, at 55%.
Month by month Mount Vernon 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
66%
55%
3.3 m/s
0
0
10
February
6°C
1°C
1°C
65%
48%
3.5 m/s
6
0
25
March
12°C
5°C
7°C
70%
48%
3.7 m/s
14
0
41
April
17°C
9°C
13°C
72%
42%
3.5 m/s
39
5
59
May
23°C
16°C
21°C
69%
43%
2.8 m/s
58
29
47
June
28°C
21°C
29°C
71%
30%
2.4 m/s
35
52
13
July
29°C
22°C
32°C
69%
32%
1.8 m/s
13
47
3
August
28°C
20°C
31°C
69%
33%
1.7 m/s
26
53
6
September
27°C
16°C
27°C
69%
30%
1.7 m/s
46
51
24
October
20°C
11°C
17°C
65%
37%
2.5 m/s
48
16
57
November
11°C
4°C
7°C
70%
38%
2.7 m/s
17
1
45
December
6°C
2°C
2°C
65%
48%
3.0 m/s
3
0
23
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 Mount Vernon weather by season
Year round, Mount Vernon 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 February. 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.
Mount Vernon weather in winterDecember to February
High 5°CLow 0°CRain 65%
Winter in Mount Vernon has typical daily highs of about 5°C and lows of about 0°C, with a 65% chance of rain on a given day.
Mount Vernon weather in springMarch to May
High 17°CLow 10°CRain 70%
Spring in Mount Vernon has typical daily highs of about 17°C and lows of about 10°C, with a 70% chance of rain on a given day.
Mount Vernon weather in summerJune to August
High 29°CLow 21°CRain 69%
Summer in Mount Vernon has typical daily highs of about 29°C and lows of about 21°C, with a 69% chance of rain on a given day.
Mount Vernon weather in autumnSeptember to November
High 19°CLow 10°CRain 68%
Autumn in Mount Vernon has typical daily highs of about 19°C and lows of about 10°C, with a 68% chance of rain on a given day.
When is the rainy season in Mount Vernon?
Mount Vernon has no sharply defined rainy season: the chance of rain on a given day runs from 65% in February, the driest month, to 72% in April, the wettest.
What time of year is Mount Vernon windiest?
Winds in Mount Vernon are highest in March, averaging 3.7 m/s (13 km/h), and lightest in August, at 1.7 m/s (6 km/h). The prevailing wind is from the SW.
What is the average temperature in Mount Vernon year round?
The average temperature in Mount Vernon 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.