Annual mean 14°C · wettest around April · prevailing wind SW
Warmest
29.4 °C
Coldest
0.6 °C
Wettest
40%
Windiest
5.5 m/s
Prevailing
SW
4.3 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 Edwardsville 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. Edwardsville has no sharply defined rainy season: the chance of rain on a given day runs from 39% in January, the driest month, to 49% in April, the wettest. Winds in Edwardsville are highest in March, averaging 4.1 m/s (15 km/h), and lightest in August, at 2.2 m/s (8 km/h). The prevailing wind is from the SW. The clearest skies in Edwardsville come in September, when the sky is typically 31% covered; January is the cloudiest month, at 56%.
Month by month Edwardsville 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
-4°C
39%
56%
3.7 m/s
1
0
9
February
5°C
-1°C
0°C
41%
48%
3.7 m/s
6
0
23
March
11°C
4°C
6°C
46%
51%
4.1 m/s
13
0
41
April
17°C
9°C
12°C
49%
46%
4.0 m/s
38
4
60
May
22°C
15°C
21°C
47%
46%
3.2 m/s
60
28
52
June
28°C
20°C
28°C
43%
33%
2.8 m/s
41
54
17
July
29°C
22°C
31°C
44%
34%
2.3 m/s
19
53
5
August
28°C
20°C
30°C
44%
35%
2.2 m/s
33
54
11
September
26°C
16°C
26°C
40%
31%
2.2 m/s
52
51
29
October
19°C
10°C
16°C
43%
39%
3.0 m/s
48
13
60
November
11°C
4°C
6°C
42%
41%
3.2 m/s
16
1
43
December
5°C
1°C
0°C
40%
49%
3.5 m/s
2
0
20
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 Edwardsville weather by season
Year round, Edwardsville 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 January. 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.
Edwardsville weather in winterDecember to February
High 4°CLow -1°CRain 40%
Winter in Edwardsville has typical daily highs of about 4°C and lows of about -1°C, with a 40% chance of rain on a given day.
Edwardsville weather in springMarch to May
High 17°CLow 9°CRain 47%
Spring in Edwardsville has typical daily highs of about 17°C and lows of about 9°C, with a 47% chance of rain on a given day.
Edwardsville weather in summerJune to August
High 28°CLow 21°CRain 44%
Summer in Edwardsville has typical daily highs of about 28°C and lows of about 21°C, with a 44% chance of rain on a given day.
Edwardsville weather in autumnSeptember to November
High 19°CLow 10°CRain 41%
Autumn in Edwardsville has typical daily highs of about 19°C and lows of about 10°C, with a 41% chance of rain on a given day.
When is the rainy season in Edwardsville?
Edwardsville has no sharply defined rainy season: the chance of rain on a given day runs from 39% in January, the driest month, to 49% in April, the wettest.
What time of year is Edwardsville windiest?
Winds in Edwardsville are highest in March, averaging 4.1 m/s (15 km/h), and lightest in August, at 2.2 m/s (8 km/h). The prevailing wind is from the SW.
What is the average temperature in Edwardsville year round?
The average temperature in Edwardsville 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.